From 95de179bb08157c3f6716b0645ec00794acc83e6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Mon, 27 Oct 2014 08:29:43 -0400 Subject: Fix rendering of 0-width lines (e.g. board outlines) in SVG and Cairo renderer --- gerber/render/cairo_backend.py | 13 ++++---- gerber/render/svgwrite_backend.py | 63 ++++----------------------------------- 2 files changed, 13 insertions(+), 63 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index df513bb..1c69725 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -20,7 +20,7 @@ from operator import mul import cairocffi as cairo import math -SCALE = 300. +SCALE = 400. class GerberCairoContext(GerberContext): @@ -48,8 +48,9 @@ class GerberCairoContext(GerberContext): def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) - self.ctx.set_source_rgb (*color) - self.ctx.set_line_width(line.width * SCALE) + width = line.width if line.width != 0 else 0.001 + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_line_width(width * SCALE) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) self.ctx.line_to(*end) @@ -57,7 +58,7 @@ class GerberCairoContext(GerberContext): def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) for point in points[1:]: @@ -66,7 +67,7 @@ class GerberCairoContext(GerberContext): def _render_circle(self, circle, color): center = map(mul, circle.position, self.scale) - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.arc(*center, radius=circle.radius * SCALE, angle1=0, angle2=2 * math.pi) self.ctx.fill() @@ -74,7 +75,7 @@ class GerberCairoContext(GerberContext): def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) - self.ctx.set_source_rgb (*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.rectangle(*ll,width=width, height=height) self.ctx.fill() diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index 2df87b3..aeb680c 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -20,7 +20,7 @@ from .render import GerberContext from operator import mul import svgwrite -SCALE = 300 +SCALE = 400. def svg_color(color): @@ -56,9 +56,10 @@ class GerberSvgContext(GerberContext): def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) + width = line.width if line.width != 0 else 0.001 aline = self.dwg.line(start=start, end=end, stroke=svg_color(color), - stroke_width=SCALE * line.width, + stroke_width=SCALE * width, stroke_linecap='round') aline.stroke(opacity=self.alpha) self.dwg.add(aline) @@ -91,62 +92,10 @@ class GerberSvgContext(GerberContext): self.dwg.add(arect) def _render_obround(self, obround, color): - x, y = tuple(map(mul, obround.position, self.scale)) - xsize, ysize = tuple(map(mul, (obround.width, obround.height), - self.scale)) - xscale, yscale = self.scale - - # Corner case... - if xsize == ysize: - circle = self.dwg.circle(center=(x, y), - r = (xsize / 2.0), - fill=svg_color(color)) - circle.fill(opacity=self.alpha) - self.dwg.add(circle) - - # Horizontal obround - elif xsize > ysize: - rectx = xsize - ysize - recty = ysize - c1 = self.dwg.circle(center=(x - (rectx / 2.0), y), - r = (ysize / 2.0), - fill=svg_color(color)) - - c2 = self.dwg.circle(center=(x + (rectx / 2.0), y), - r = (ysize / 2.0), - fill=svg_color(color)) - - rect = self.dwg.rect(insert=(x, y), - size=(xsize, ysize), - fill=svg_color(color)) - c1.fill(opacity=self.alpha) - c2.fill(opacity=self.alpha) - rect.fill(opacity=self.alpha) - self.dwg.add(c1) - self.dwg.add(c2) - self.dwg.add(rect) + self._render_circle(obround.subshapes['circle1'], color) + self._render_circle(obround.subshapes['circle2'], color) + self._render_rectangle(obround.subshapes['rectangle'], color) - # Vertical obround - else: - rectx = xsize - recty = ysize - xsize - c1 = self.dwg.circle(center=(x, y - (recty / 2.)), - r = (xsize / 2.), - fill=svg_color(color)) - - c2 = self.dwg.circle(center=(x, y + (recty / 2.)), - r = (xsize / 2.), - fill=svg_color(color)) - - rect = self.dwg.rect(insert=(x, y), - size=(xsize, ysize), - fill=svg_color(color)) - c1.fill(opacity=self.alpha) - c2.fill(opacity=self.alpha) - rect.fill(opacity=self.alpha) - self.dwg.add(c1) - self.dwg.add(c2) - self.dwg.add(rect) def _render_drill(self, circle, color): center = map(mul, circle.position, self.scale) -- cgit From f5abd5b0bdc0b9f524456dc9216bd0f3732e82a0 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Tue, 28 Oct 2014 22:11:43 -0400 Subject: Add arc rendering and tests --- gerber/render/cairo_backend.py | 20 +++++++++++++++++++- gerber/render/svgwrite_backend.py | 14 ++++++++++++++ 2 files changed, 33 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 1c69725..125a125 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -56,13 +56,31 @@ class GerberCairoContext(GerberContext): self.ctx.line_to(*end) self.ctx.stroke() + def _render_arc(self, arc, color): + center = map(mul, arc.center, self.scale) + start = map(mul, arc.start, self.scale) + end = map(mul, arc.end, self.scale) + radius = SCALE * arc.radius + angle1 = arc.start_angle + angle2 = arc.end_angle + width = arc.width if arc.width != 0 else 0.001 + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_line_width(width * SCALE) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) # You actually have to do this... + if arc.direction == 'counterclockwise': + self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + else: + self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) + self.ctx.move_to(*end) # ...lame + def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) for point in points[1:]: - self.ctx.move_to(*point) + self.ctx.line_to(*point) self.ctx.fill() def _render_circle(self, circle, color): diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index aeb680c..27783d6 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -18,6 +18,7 @@ from .render import GerberContext from operator import mul +import math import svgwrite SCALE = 400. @@ -64,6 +65,19 @@ class GerberSvgContext(GerberContext): aline.stroke(opacity=self.alpha) self.dwg.add(aline) + def _render_arc(self, arc, color): + start = tuple(map(mul, arc.start, self.scale)) + end = tuple(map(mul, arc.end, self.scale)) + radius = SCALE * arc.radius + width = arc.width if arc.width != 0 else 0.001 + arc_path = self.dwg.path(d='M %f, %f' % start, + stroke=svg_color(color), + stroke_width=SCALE * width) + large_arc = arc.sweep_angle >= 2 * math.pi + direction = '-' if arc.direction == 'clockwise' else '+' + arc_path.push_arc(end, 0, radius, large_arc, direction, True) + self.dwg.add(arc_path) + def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] region_path = self.dwg.path(d='M %f, %f' % points[0], -- cgit From d98d23f8b5d61bb9d20e743a3c44bf04b6b2330a Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Mon, 2 Feb 2015 00:43:08 -0500 Subject: More tests and bugfixes --- gerber/render/render.py | 130 +++++++++++++++++++++++------------------------- 1 file changed, 63 insertions(+), 67 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/render.py b/gerber/render/render.py index f5c58d8..2e4abfa 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -41,7 +41,7 @@ class GerberContext(object): Attributes ---------- units : string - Measurement units + Measurement units. 'inch' or 'metric' color : tuple (, , ) Color used for rendering as a tuple of normalized (red, green, blue) values. @@ -57,74 +57,70 @@ class GerberContext(object): Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.) """ def __init__(self, units='inch'): - self.units = units - self.color = (0.7215, 0.451, 0.200) - self.drill_color = (0.25, 0.25, 0.25) - self.background_color = (0.0, 0.0, 0.0) - self.alpha = 1.0 - - def set_units(self, units): - """ Set context measurement units - - Parameters - ---------- - unit : string - Measurement units. may be 'inch' or 'metric' - - Raises - ------ - ValueError - If `unit` is not 'inch' or 'metric' - """ + self._units = units + self._color = (0.7215, 0.451, 0.200) + self._drill_color = (0.25, 0.25, 0.25) + self._background_color = (0.0, 0.0, 0.0) + self._alpha = 1.0 + + @property + def units(self): + return self._units + + @units.setter + def units(self, units): if units not in ('inch', 'metric'): raise ValueError('Units may be "inch" or "metric"') - self.units = units - - def set_color(self, color): - """ Set rendering color. - - Parameters - ---------- - color : tuple (, , ) - Color as a tuple of (red, green, blue) values. Each channel is - represented as a float value in (0, 1) - """ - self.color = color - - def set_drill_color(self, color): - """ Set color used for rendering drill hits. - - Parameters - ---------- - color : tuple (, , ) - Color as a tuple of (red, green, blue) values. Each channel is - represented as a float value in (0, 1) - """ - self.drill_color = color - - def set_background_color(self, color): - """ Set rendering background color - - Parameters - ---------- - color : tuple (, , ) - Color as a tuple of (red, green, blue) values. Each channel is - represented as a float value in (0, 1) - """ - self.background_color = color - - def set_alpha(self, alpha): - """ Set layer rendering opacity - - .. note:: - Not all backends/rendering devices support this parameter. - - Parameters - ---------- - alpha : float - Rendering opacity. must be between 0.0 (transparent) and 1.0 (opaque) - """ - self.alpha = alpha + self._units = units + + @property + def color(self): + return self._color + + @color.setter + def color(self, color): + if len(color) != 3: + raise TypeError('Color must be a tuple of R, G, and B values') + for c in color: + if c < 0 or c > 1: + raise ValueError('Channel values must be between 0.0 and 1.0') + self._color = color + + @property + def drill_color(self): + return self._drill_color + + @drill_color.setter + def drill_color(self, color): + if len(color) != 3: + raise TypeError('Drill color must be a tuple of R, G, and B values') + for c in color: + if c < 0 or c > 1: + raise ValueError('Channel values must be between 0.0 and 1.0') + self._drill_color = color + + @property + def background_color(self): + return self._background_color + + @background_color.setter + def background_color(self, color): + if len(color) != 3: + raise TypeError('Background color must be a tuple of R, G, and B values') + for c in color: + if c < 0 or c > 1: + raise ValueError('Channel values must be between 0.0 and 1.0') + self._background_color = color + + @property + def alpha(self): + return self._alpha + + @alpha.setter + def alpha(self, alpha): + if alpha < 0 or alpha > 1: + raise ValueError('Alpha must be between 0.0 and 1.0') + self._alpha = alpha def render(self, primitive): color = (self.color if primitive.level_polarity == 'dark' -- cgit From d7a453e5ab1eb52c121165f7d027fc66906edc81 Mon Sep 17 00:00:00 2001 From: Paulo Henrique Silva Date: Sun, 8 Feb 2015 00:28:17 -0200 Subject: Remove unused file --- gerber/render/apertures.py | 76 ---------------------------------------------- 1 file changed, 76 deletions(-) delete mode 100644 gerber/render/apertures.py (limited to 'gerber/render') diff --git a/gerber/render/apertures.py b/gerber/render/apertures.py deleted file mode 100644 index 52ae50c..0000000 --- a/gerber/render/apertures.py +++ /dev/null @@ -1,76 +0,0 @@ -#! /usr/bin/env python -# -*- coding: utf-8 -*- - -# Copyright 2014 Hamilton Kibbe - -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at - -# http://www.apache.org/licenses/LICENSE-2.0 - -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -""" -gerber.render.apertures -============ -**Gerber Aperture base classes** - -This module provides base classes for gerber apertures. These are used by -the rendering engine to draw the gerber file. -""" -import math - -class Aperture(object): - """ Gerber Aperture base class - """ - def draw(self, ctx, x, y): - raise NotImplementedError('The draw method must be implemented \ - in an Aperture subclass.') - - def flash(self, ctx, x, y): - raise NotImplementedError('The flash method must be implemented \ - in an Aperture subclass.') - - def _arc_params(self, startx, starty, x, y, i, j): - center = (startx + i, starty + j) - radius = math.sqrt(math.pow(center[0] - x, 2) + - math.pow(center[1] - y, 2)) - delta_x0 = startx - center[0] - delta_y0 = center[1] - starty - delta_x1 = x - center[0] - delta_y1 = center[1] - y - start_angle = math.atan2(delta_y0, delta_x0) - end_angle = math.atan2(delta_y1, delta_x1) - return {'center': center, 'radius': radius, - 'start_angle': start_angle, 'end_angle': end_angle} - - -class Circle(Aperture): - """ Circular Aperture base class - """ - def __init__(self, diameter=0.0): - self.diameter = diameter - - -class Rect(Aperture): - """ Rectangular Aperture base class - """ - def __init__(self, size=(0, 0)): - self.size = size - - -class Obround(Aperture): - """ Obround Aperture base class - """ - def __init__(self, size=(0, 0)): - self.size = size - - -class Polygon(Aperture): - """ Polygon Aperture base class - """ - pass -- cgit From 8f69c1dfa281b6486c8fce16c1d58acef70c7ae7 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Thu, 12 Feb 2015 11:28:50 -0500 Subject: Update line primitive to take aperture parameter This fixes the exception referenced in #12. Still need to add rendering code for rectangle aperture lines and arcs. Rectangle strokes will be drawn as polygons by the rendering backends. --- gerber/render/cairo_backend.py | 20 +++++++++++++------- gerber/render/svgwrite_backend.py | 20 +++++++++++++------- 2 files changed, 26 insertions(+), 14 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 125a125..c1df87a 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -20,6 +20,8 @@ from operator import mul import cairocffi as cairo import math +from ..primitives import * + SCALE = 400. @@ -48,13 +50,17 @@ class GerberCairoContext(GerberContext): def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) - width = line.width if line.width != 0 else 0.001 - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_line_width(width * SCALE) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.ctx.move_to(*start) - self.ctx.line_to(*end) - self.ctx.stroke() + if isinstance(line.aperture, Circle): + width = line.aperture.diameter if line.aperture.diameter != 0 else 0.001 + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_line_width(width * SCALE) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) + self.ctx.line_to(*end) + self.ctx.stroke() + elif isinstance(line.aperture, rectangle): + # TODO: Render rectangle strokes as a polygon... + pass def _render_arc(self, arc, color): center = map(mul, arc.center, self.scale) diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index 27783d6..279d90f 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -21,6 +21,8 @@ from operator import mul import math import svgwrite +from ..primitives import * + SCALE = 400. @@ -57,13 +59,17 @@ class GerberSvgContext(GerberContext): def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) - width = line.width if line.width != 0 else 0.001 - aline = self.dwg.line(start=start, end=end, - stroke=svg_color(color), - stroke_width=SCALE * width, - stroke_linecap='round') - aline.stroke(opacity=self.alpha) - self.dwg.add(aline) + if isinstance(line.aperture, Circle): + width = line.aperture.diameter if line.aperture.diameter != 0 else 0.001 + aline = self.dwg.line(start=start, end=end, + stroke=svg_color(color), + stroke_width=SCALE * width, + stroke_linecap='round') + aline.stroke(opacity=self.alpha) + self.dwg.add(aline) + elif isinstance(line.aperture, Rectangle): + # TODO: Render rectangle strokes as a polygon... + pass def _render_arc(self, arc, color): start = tuple(map(mul, arc.start, self.scale)) -- cgit From 5e23d07bcb5103b4607c6ad591a2a547c97ee1f6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Fri, 13 Feb 2015 09:37:27 -0500 Subject: Fix rendering for line with rectangular aperture per #12. Still need to do the same for arcs. --- gerber/render/cairo_backend.py | 13 +++++++++---- gerber/render/svgwrite_backend.py | 10 ++++++++-- 2 files changed, 17 insertions(+), 6 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index c1df87a..999269b 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -26,7 +26,7 @@ SCALE = 400. class GerberCairoContext(GerberContext): - def __init__(self, surface=None, size=(1000, 1000)): + def __init__(self, surface=None, size=(10000, 10000)): GerberContext.__init__(self) if surface is None: self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, @@ -58,9 +58,14 @@ class GerberCairoContext(GerberContext): self.ctx.move_to(*start) self.ctx.line_to(*end) self.ctx.stroke() - elif isinstance(line.aperture, rectangle): - # TODO: Render rectangle strokes as a polygon... - pass + elif isinstance(line.aperture, Rectangle): + points = [tuple(map(mul, x, self.scale)) for x in line.vertices] + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_line_width(0) + self.ctx.move_to(*points[0]) + for point in points[1:]: + self.ctx.line_to(*point) + self.ctx.fill() def _render_arc(self, arc, color): center = map(mul, arc.center, self.scale) diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index 279d90f..9e6a5e4 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -68,8 +68,14 @@ class GerberSvgContext(GerberContext): aline.stroke(opacity=self.alpha) self.dwg.add(aline) elif isinstance(line.aperture, Rectangle): - # TODO: Render rectangle strokes as a polygon... - pass + points = [tuple(map(mul, point, self.scale)) for point in line.vertices] + path = self.dwg.path(d='M %f, %f' % points[0], + fill=svg_color(color), + stroke='none') + path.fill(opacity=self.alpha) + for point in points[1:]: + path.push('L %f, %f' % point) + self.dwg.add(path) def _render_arc(self, arc, color): start = tuple(map(mul, arc.start, self.scale)) -- cgit From 5cf1fa74b42eb8feaab23078bef6f31f6d647c33 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 15 Feb 2015 02:20:02 -0500 Subject: Tests and bugfixes --- gerber/render/svgwrite_backend.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index 9e6a5e4..ae7c377 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -89,7 +89,7 @@ class GerberSvgContext(GerberContext): direction = '-' if arc.direction == 'clockwise' else '+' arc_path.push_arc(end, 0, radius, large_arc, direction, True) self.dwg.add(arc_path) - + def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] region_path = self.dwg.path(d='M %f, %f' % points[0], -- cgit From bfe14841604b6be403e7123e8b6667b1f0aff6f6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 15 Feb 2015 03:29:47 -0500 Subject: Add cairo example code, and use example-generated image in readme --- gerber/render/cairo_backend.py | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 999269b..18d1ceb 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -22,7 +22,7 @@ import math from ..primitives import * -SCALE = 400. +SCALE = 4000. class GerberCairoContext(GerberContext): @@ -42,10 +42,12 @@ class GerberCairoContext(GerberContext): self.background = False def set_bounds(self, bounds): - xbounds, ybounds = bounds - self.ctx.rectangle(SCALE * xbounds[0], SCALE * ybounds[0], SCALE * (xbounds[1]- xbounds[0]), SCALE * (ybounds[1] - ybounds[0])) - self.ctx.set_source_rgb(0,0,0) - self.ctx.fill() + if not self.background: + xbounds, ybounds = bounds + self.ctx.rectangle(SCALE * xbounds[0], SCALE * ybounds[0], SCALE * (xbounds[1]- xbounds[0]), SCALE * (ybounds[1] - ybounds[0])) + self.ctx.set_source_rgb(0,0,0) + self.ctx.fill() + self.background = True def _render_line(self, line, color): start = map(mul, line.start, self.scale) -- cgit From d63bf0d68ae100c0413c7619f96d5d1c65da6c4e Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 15 Feb 2015 13:29:50 -0500 Subject: Fix cairo image size --- gerber/render/cairo_backend.py | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 18d1ceb..f79dfbe 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -44,7 +44,14 @@ class GerberCairoContext(GerberContext): def set_bounds(self, bounds): if not self.background: xbounds, ybounds = bounds - self.ctx.rectangle(SCALE * xbounds[0], SCALE * ybounds[0], SCALE * (xbounds[1]- xbounds[0]), SCALE * (ybounds[1] - ybounds[0])) + width = SCALE * (xbounds[1] - xbounds[0]) + height = SCALE * (ybounds[1] - ybounds[0]) + self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(width), int(height)) + self.ctx = cairo.Context(self.surface) + self.ctx.translate(0, height) + self.scale = (SCALE,SCALE) + self.ctx.scale(1, -1) + self.ctx.rectangle(SCALE * xbounds[0], SCALE * ybounds[0], width, height) self.ctx.set_source_rgb(0,0,0) self.ctx.fill() self.background = True -- cgit From e6fa61c82b41473e5d6b37846b2ee372a5dc417f Mon Sep 17 00:00:00 2001 From: Philipp Klaus Date: Wed, 18 Feb 2015 15:54:36 +0100 Subject: Fixing more relative import statements --- gerber/render/__init__.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/__init__.py b/gerber/render/__init__.py index b4af4ad..1e60792 100644 --- a/gerber/render/__init__.py +++ b/gerber/render/__init__.py @@ -24,5 +24,5 @@ SVG is the only supported format. """ -from svgwrite_backend import GerberSvgContext -from cairo_backend import GerberCairoContext +from .svgwrite_backend import GerberSvgContext +from .cairo_backend import GerberCairoContext -- cgit From d830375c4c33e6a863e02c9f767c127841a070f7 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Fri, 20 Feb 2015 10:07:26 -0500 Subject: Fix arc width per comment in #12 --- gerber/render/cairo_backend.py | 2 +- gerber/render/svgwrite_backend.py | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index f79dfbe..326f44e 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -83,7 +83,7 @@ class GerberCairoContext(GerberContext): radius = SCALE * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle - width = arc.width if arc.width != 0 else 0.001 + width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(width * SCALE) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index ae7c377..a88abfe 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -81,7 +81,7 @@ class GerberSvgContext(GerberContext): start = tuple(map(mul, arc.start, self.scale)) end = tuple(map(mul, arc.end, self.scale)) radius = SCALE * arc.radius - width = arc.width if arc.width != 0 else 0.001 + width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 arc_path = self.dwg.path(d='M %f, %f' % start, stroke=svg_color(color), stroke_width=SCALE * width) -- cgit From feb5b3d57117c1e47f1292d825d5675e88baa8c9 Mon Sep 17 00:00:00 2001 From: hbc Date: Wed, 25 Feb 2015 09:39:53 +0800 Subject: Convert py3k's map object to tuple explicitly. --- gerber/render/svgwrite_backend.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py index a88abfe..f8136e0 100644 --- a/gerber/render/svgwrite_backend.py +++ b/gerber/render/svgwrite_backend.py @@ -109,7 +109,7 @@ class GerberSvgContext(GerberContext): self.dwg.add(acircle) def _render_rectangle(self, rectangle, color): - center = map(mul, rectangle.position, self.scale) + center = tuple(map(mul, rectangle.position, self.scale)) size = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) insert = center[0] - size[0] / 2., center[1] - size[1] / 2. arect = self.dwg.rect(insert=insert, size=size, -- cgit From 68619d4d5a7beb38dc81d953b43bf4196ca1d3a6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Thu, 5 Mar 2015 22:42:42 -0500 Subject: Fix parsing for multiline ipc-d-356 records --- gerber/render/cairo_backend.py | 12 +++++++++++- gerber/render/render.py | 6 +++++- 2 files changed, 16 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 326f44e..fa1aecc 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -104,7 +104,7 @@ class GerberCairoContext(GerberContext): self.ctx.fill() def _render_circle(self, circle, color): - center = map(mul, circle.position, self.scale) + center = tuple(map(mul, circle.position, self.scale)) self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_line_width(0) self.ctx.arc(*center, radius=circle.radius * SCALE, angle1=0, angle2=2 * math.pi) @@ -126,5 +126,15 @@ class GerberCairoContext(GerberContext): def _render_drill(self, circle, color): self._render_circle(circle, color) + def _render_test_record(self, primitive, color): + self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL) + self.ctx.set_font_size(200) + self._render_circle(Circle(primitive.position, 0.01), color) + self.ctx.set_source_rgb(*color) + self.ctx.move_to(*[SCALE * (coord + 0.01) for coord in primitive.position]) + self.ctx.scale(1, -1) + self.ctx.show_text(primitive.net_name) + self.ctx.scale(1, -1) + def dump(self, filename): self.surface.write_to_png(filename) diff --git a/gerber/render/render.py b/gerber/render/render.py index 2e4abfa..68c2115 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -138,9 +138,11 @@ class GerberContext(object): elif isinstance(primitive, Obround): self._render_obround(primitive, color) elif isinstance(primitive, Polygon): - self._render_polygon(Polygon, color) + self._render_polygon(primitive, color) elif isinstance(primitive, Drill): self._render_drill(primitive, self.drill_color) + elif isinstance(primitive, TestRecord): + self._render_test_record(primitive, color) else: return @@ -168,3 +170,5 @@ class GerberContext(object): def _render_drill(self, primitive, color): pass + def _render_test_record(self, primitive, color): + pass -- cgit From 5aaf18889c3cdc31ae61b9593bf5848bc57ec09a Mon Sep 17 00:00:00 2001 From: Paulo Henrique Silva Date: Thu, 9 Jul 2015 03:54:47 -0300 Subject: Initial patch to unify our render towards cairo This branch allows a pure cairo based render for both PNG and SVG. Cairo backend is mostly the same but with improved support for configurable scale, orientation and inverted color drawing. API is not yet final. --- gerber/render/cairo_backend.py | 87 ++++++++++++++++++++++++------------------ gerber/render/render.py | 9 +++++ 2 files changed, 59 insertions(+), 37 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index fa1aecc..939863b 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -16,53 +16,44 @@ # limitations under the License. from .render import GerberContext -from operator import mul + import cairocffi as cairo + +from operator import mul import math +import tempfile from ..primitives import * -SCALE = 4000. - - class GerberCairoContext(GerberContext): - def __init__(self, surface=None, size=(10000, 10000)): + def __init__(self, scale=300): GerberContext.__init__(self) - if surface is None: - self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, - size[0], size[1]) - else: - self.surface = surface + self.scale = (scale, scale) + self.surface = None + self.ctx = None + + def set_bounds(self, bounds): + origin_in_inch = (bounds[0][0], bounds[1][0]) + size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) + size_in_pixels = map(mul, size_in_inch, self.scale) + + self.surface_buffer = tempfile.NamedTemporaryFile() + + self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) self.ctx = cairo.Context(self.surface) - self.size = size - self.ctx.translate(0, self.size[1]) - self.scale = (SCALE,SCALE) + self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) self.ctx.scale(1, -1) - self.apertures = {} - self.background = False - - def set_bounds(self, bounds): - if not self.background: - xbounds, ybounds = bounds - width = SCALE * (xbounds[1] - xbounds[0]) - height = SCALE * (ybounds[1] - ybounds[0]) - self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(width), int(height)) - self.ctx = cairo.Context(self.surface) - self.ctx.translate(0, height) - self.scale = (SCALE,SCALE) - self.ctx.scale(1, -1) - self.ctx.rectangle(SCALE * xbounds[0], SCALE * ybounds[0], width, height) - self.ctx.set_source_rgb(0,0,0) - self.ctx.fill() - self.background = True + self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) + # self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), -origin_in_inch[1]*self.scale[1]) def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) if isinstance(line.aperture, Circle): - width = line.aperture.diameter if line.aperture.diameter != 0 else 0.001 + width = line.aperture.diameter self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_line_width(width * SCALE) + self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) self.ctx.line_to(*end) @@ -70,6 +61,7 @@ class GerberCairoContext(GerberContext): elif isinstance(line.aperture, Rectangle): points = [tuple(map(mul, x, self.scale)) for x in line.vertices] self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) for point in points[1:]: @@ -80,12 +72,13 @@ class GerberCairoContext(GerberContext): center = map(mul, arc.center, self.scale) start = map(mul, arc.start, self.scale) end = map(mul, arc.end, self.scale) - radius = SCALE * arc.radius + radius = self.scale * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_line_width(width * SCALE) + self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert)else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) # You actually have to do this... if arc.direction == 'counterclockwise': @@ -97,6 +90,7 @@ class GerberCairoContext(GerberContext): def _render_region(self, region, color): points = [tuple(map(mul, point, self.scale)) for point in region.points] self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) for point in points[1:]: @@ -106,14 +100,16 @@ class GerberCairoContext(GerberContext): def _render_circle(self, circle, color): center = tuple(map(mul, circle.position, self.scale)) self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) - self.ctx.arc(*center, radius=circle.radius * SCALE, angle1=0, angle2=2 * math.pi) + self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) self.ctx.fill() def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.rectangle(*ll,width=width, height=height) self.ctx.fill() @@ -131,10 +127,27 @@ class GerberCairoContext(GerberContext): self.ctx.set_font_size(200) self._render_circle(Circle(primitive.position, 0.01), color) self.ctx.set_source_rgb(*color) - self.ctx.move_to(*[SCALE * (coord + 0.01) for coord in primitive.position]) + self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position]) self.ctx.scale(1, -1) self.ctx.show_text(primitive.net_name) self.ctx.scale(1, -1) + def _paint_inverted_layer(self): + self.ctx.set_source_rgba(*self.background_color) + self.ctx.set_operator(cairo.OPERATOR_OVER) + self.ctx.paint() + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + def dump(self, filename): - self.surface.write_to_png(filename) + is_svg = filename.lower().endswith(".svg") + + if is_svg: + self.surface.finish() + self.surface_buffer.flush() + + with open(filename, "w") as f: + f.write(open(self.surface_buffer.name, "r").read()) + f.flush() + else: + self.surface.write_to_png(filename) diff --git a/gerber/render/render.py b/gerber/render/render.py index 68c2115..124e743 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -62,6 +62,7 @@ class GerberContext(object): self._drill_color = (0.25, 0.25, 0.25) self._background_color = (0.0, 0.0, 0.0) self._alpha = 1.0 + self._invert = False @property def units(self): @@ -122,6 +123,14 @@ class GerberContext(object): raise ValueError('Alpha must be between 0.0 and 1.0') self._alpha = alpha + @property + def invert(self): + return self._invert + + @invert.setter + def invert(self, invert): + self._invert = invert + def render(self, primitive): color = (self.color if primitive.level_polarity == 'dark' else self.background_color) -- cgit From b3f6ec558ca35a19bd60440f2a114eb98c0a4263 Mon Sep 17 00:00:00 2001 From: Paulo Henrique Silva Date: Thu, 9 Jul 2015 04:05:15 -0300 Subject: Fix arcs and ackground painting --- gerber/render/cairo_backend.py | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 939863b..16638f5 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -72,7 +72,7 @@ class GerberCairoContext(GerberContext): center = map(mul, arc.center, self.scale) start = map(mul, arc.start, self.scale) end = map(mul, arc.end, self.scale) - radius = self.scale * arc.radius + radius = self.scale[0] * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 @@ -139,6 +139,10 @@ class GerberCairoContext(GerberContext): self.ctx.paint() self.ctx.set_operator(cairo.OPERATOR_CLEAR) + def _paint_background(self): + self.ctx.set_source_rgba(*self.background_color) + self.ctx.paint() + def dump(self, filename): is_svg = filename.lower().endswith(".svg") -- cgit From 39726e3936c5fa5c50158727e8eb7f5d01cb1b49 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Wed, 22 Jul 2015 22:13:09 -0400 Subject: Fix multiple layer issue in cairo-unification branch (see #33) --- gerber/render/cairo_backend.py | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 16638f5..2791d76 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -31,20 +31,21 @@ class GerberCairoContext(GerberContext): self.scale = (scale, scale) self.surface = None self.ctx = None + self.bg = False def set_bounds(self, bounds): origin_in_inch = (bounds[0][0], bounds[1][0]) size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) size_in_pixels = map(mul, size_in_inch, self.scale) - self.surface_buffer = tempfile.NamedTemporaryFile() - - self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) - self.ctx = cairo.Context(self.surface) - self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) - self.ctx.scale(1, -1) - self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) - # self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), -origin_in_inch[1]*self.scale[1]) + if self.surface is None: + self.surface_buffer = tempfile.NamedTemporaryFile() + self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) + self.ctx = cairo.Context(self.surface) + self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) + self.ctx.scale(1, -1) + self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) + # self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), -origin_in_inch[1]*self.scale[1]) def _render_line(self, line, color): start = map(mul, line.start, self.scale) @@ -140,8 +141,10 @@ class GerberCairoContext(GerberContext): self.ctx.set_operator(cairo.OPERATOR_CLEAR) def _paint_background(self): - self.ctx.set_source_rgba(*self.background_color) - self.ctx.paint() + if not self.bg: + self.bg = True + self.ctx.set_source_rgba(*self.background_color) + self.ctx.paint() def dump(self, filename): is_svg = filename.lower().endswith(".svg") -- cgit From d4a870570855265b9b37f1609dd2bc9f49699bb6 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sat, 25 Jul 2015 09:48:58 -0400 Subject: Fix windows permission error per #33 the issue was trying to re-open the temporary file. it works on everything but windows. I've changed it to seek to the beginning and read from the file without re-opening, which should fix the issue. --- gerber/render/cairo_backend.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 2791d76..0ae5d40 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -154,7 +154,9 @@ class GerberCairoContext(GerberContext): self.surface_buffer.flush() with open(filename, "w") as f: - f.write(open(self.surface_buffer.name, "r").read()) + self.surface_buffer.seek(0) + f.write(self.surface_buffer.read()) f.flush() + else: self.surface.write_to_png(filename) -- cgit From cb2fa34e881a389cf8a4bc98fd12be662ff687f8 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 9 Aug 2015 15:11:13 -0400 Subject: Add support for arcs in regions. This fixes the circular cutout issue described in #32. Regions were previously stored as a collection of points, now they are stored as a collection of line and arc primitives. --- gerber/render/cairo_backend.py | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 0ae5d40..a97e552 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -89,13 +89,25 @@ class GerberCairoContext(GerberContext): self.ctx.move_to(*end) # ...lame def _render_region(self, region, color): - points = [tuple(map(mul, point, self.scale)) for point in region.points] self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) - self.ctx.move_to(*points[0]) - for point in points[1:]: - self.ctx.line_to(*point) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale))) + for p in region.primitives: + if isinstance(p, Line): + self.ctx.line_to(*tuple(map(mul, p.end, self.scale))) + else: + center = map(mul, p.center, self.scale) + start = map(mul, p.start, self.scale) + end = map(mul, p.end, self.scale) + radius = self.scale[0] * p.radius + angle1 = p.start_angle + angle2 = p.end_angle + if p.direction == 'counterclockwise': + self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + else: + self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) self.ctx.fill() def _render_circle(self, circle, color): -- cgit From dd63b169f177389602e17bc6ced53bd0f1ba0de3 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sat, 10 Oct 2015 16:51:21 -0400 Subject: Allow files to be read from strings per #37 Adds a loads() method to the top level module which generates a GerberFile or ExcellonFile from a string --- gerber/render/cairo_backend.py | 6 ++++++ gerber/render/render.py | 1 + 2 files changed, 7 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index a97e552..345f331 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -172,3 +172,9 @@ class GerberCairoContext(GerberContext): else: self.surface.write_to_png(filename) + + def dump_svg_str(self): + self.surface.finish() + self.surface_buffer.flush() + return self.surface_buffer.read() + \ No newline at end of file diff --git a/gerber/render/render.py b/gerber/render/render.py index 124e743..8f49796 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -181,3 +181,4 @@ class GerberContext(object): def _render_test_record(self, primitive, color): pass + -- cgit From 7e2e469f5e705bcede137f15555da19898bf1f44 Mon Sep 17 00:00:00 2001 From: Paulo Henrique Silva Date: Sun, 15 Nov 2015 22:31:36 -0200 Subject: Remove svgwrite backend We moved the functionality to cairo backend, it can write png and svg and maybe more (pdfs?) --- gerber/render/__init__.py | 1 - gerber/render/svgwrite_backend.py | 130 -------------------------------------- 2 files changed, 131 deletions(-) delete mode 100644 gerber/render/svgwrite_backend.py (limited to 'gerber/render') diff --git a/gerber/render/__init__.py b/gerber/render/__init__.py index 1e60792..f76d28f 100644 --- a/gerber/render/__init__.py +++ b/gerber/render/__init__.py @@ -24,5 +24,4 @@ SVG is the only supported format. """ -from .svgwrite_backend import GerberSvgContext from .cairo_backend import GerberCairoContext diff --git a/gerber/render/svgwrite_backend.py b/gerber/render/svgwrite_backend.py deleted file mode 100644 index f8136e0..0000000 --- a/gerber/render/svgwrite_backend.py +++ /dev/null @@ -1,130 +0,0 @@ -#! /usr/bin/env python -# -*- coding: utf-8 -*- - -# Copyright 2014 Hamilton Kibbe -# Based on render_svg.py by Paulo Henrique Silva - -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at - -# http://www.apache.org/licenses/LICENSE-2.0 - -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -from .render import GerberContext -from operator import mul -import math -import svgwrite - -from ..primitives import * - -SCALE = 400. - - -def svg_color(color): - color = tuple([int(ch * 255) for ch in color]) - return 'rgb(%d, %d, %d)' % color - - -class GerberSvgContext(GerberContext): - def __init__(self): - GerberContext.__init__(self) - self.scale = (SCALE, -SCALE) - self.dwg = svgwrite.Drawing() - self.background = False - - def dump(self, filename): - self.dwg.saveas(filename) - - def set_bounds(self, bounds): - xbounds, ybounds = bounds - size = (SCALE * (xbounds[1] - xbounds[0]), - SCALE * (ybounds[1] - ybounds[0])) - if not self.background: - vbox = '%f, %f, %f, %f' % (SCALE * xbounds[0], -SCALE * ybounds[1], - size[0], size[1]) - self.dwg = svgwrite.Drawing(viewBox=vbox) - rect = self.dwg.rect(insert=(SCALE * xbounds[0], - -SCALE * ybounds[1]), - size=size, - fill=svg_color(self.background_color)) - self.dwg.add(rect) - self.background = True - - def _render_line(self, line, color): - start = map(mul, line.start, self.scale) - end = map(mul, line.end, self.scale) - if isinstance(line.aperture, Circle): - width = line.aperture.diameter if line.aperture.diameter != 0 else 0.001 - aline = self.dwg.line(start=start, end=end, - stroke=svg_color(color), - stroke_width=SCALE * width, - stroke_linecap='round') - aline.stroke(opacity=self.alpha) - self.dwg.add(aline) - elif isinstance(line.aperture, Rectangle): - points = [tuple(map(mul, point, self.scale)) for point in line.vertices] - path = self.dwg.path(d='M %f, %f' % points[0], - fill=svg_color(color), - stroke='none') - path.fill(opacity=self.alpha) - for point in points[1:]: - path.push('L %f, %f' % point) - self.dwg.add(path) - - def _render_arc(self, arc, color): - start = tuple(map(mul, arc.start, self.scale)) - end = tuple(map(mul, arc.end, self.scale)) - radius = SCALE * arc.radius - width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 - arc_path = self.dwg.path(d='M %f, %f' % start, - stroke=svg_color(color), - stroke_width=SCALE * width) - large_arc = arc.sweep_angle >= 2 * math.pi - direction = '-' if arc.direction == 'clockwise' else '+' - arc_path.push_arc(end, 0, radius, large_arc, direction, True) - self.dwg.add(arc_path) - - def _render_region(self, region, color): - points = [tuple(map(mul, point, self.scale)) for point in region.points] - region_path = self.dwg.path(d='M %f, %f' % points[0], - fill=svg_color(color), - stroke='none') - region_path.fill(opacity=self.alpha) - for point in points[1:]: - region_path.push('L %f, %f' % point) - self.dwg.add(region_path) - - def _render_circle(self, circle, color): - center = map(mul, circle.position, self.scale) - acircle = self.dwg.circle(center=center, - r = SCALE * circle.radius, - fill=svg_color(color)) - acircle.fill(opacity=self.alpha) - self.dwg.add(acircle) - - def _render_rectangle(self, rectangle, color): - center = tuple(map(mul, rectangle.position, self.scale)) - size = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) - insert = center[0] - size[0] / 2., center[1] - size[1] / 2. - arect = self.dwg.rect(insert=insert, size=size, - fill=svg_color(color)) - arect.fill(opacity=self.alpha) - self.dwg.add(arect) - - def _render_obround(self, obround, color): - self._render_circle(obround.subshapes['circle1'], color) - self._render_circle(obround.subshapes['circle2'], color) - self._render_rectangle(obround.subshapes['rectangle'], color) - - - def _render_drill(self, circle, color): - center = map(mul, circle.position, self.scale) - hit = self.dwg.circle(center=center, r=SCALE * circle.radius, - fill=svg_color(color)) - self.dwg.add(hit) -- cgit From d5f382f4b413d73a96613dd86aa207bb9e665b0d Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Mon, 23 Nov 2015 16:17:31 +0800 Subject: Render with cairo instead of cairocffi - I would like to make it use either, but for now, using the one that works with wxpython --- gerber/render/cairo_backend.py | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 345f331..e4a5eff 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -17,7 +17,7 @@ from .render import GerberContext -import cairocffi as cairo +import cairo from operator import mul import math @@ -52,7 +52,7 @@ class GerberCairoContext(GerberContext): end = map(mul, line.end, self.scale) if isinstance(line.aperture, Circle): width = line.aperture.diameter - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) @@ -61,7 +61,7 @@ class GerberCairoContext(GerberContext): self.ctx.stroke() elif isinstance(line.aperture, Rectangle): points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) @@ -77,7 +77,7 @@ class GerberCairoContext(GerberContext): angle1 = arc.start_angle angle2 = arc.end_angle width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert)else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) @@ -89,7 +89,8 @@ class GerberCairoContext(GerberContext): self.ctx.move_to(*end) # ...lame def _render_region(self, region, color): - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + #self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) @@ -112,7 +113,7 @@ class GerberCairoContext(GerberContext): def _render_circle(self, circle, color): center = tuple(map(mul, circle.position, self.scale)) - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) @@ -121,7 +122,7 @@ class GerberCairoContext(GerberContext): def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) - self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.rectangle(*ll,width=width, height=height) -- cgit From 8eede187f3f644c4f8a0de0dc5825dc4c00c7b8f Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Mon, 23 Nov 2015 22:22:30 +0800 Subject: More fixes to work with cairo --- gerber/render/cairo_backend.py | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index e4a5eff..81c5ce4 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -61,7 +61,7 @@ class GerberCairoContext(GerberContext): self.ctx.stroke() elif isinstance(line.aperture, Rectangle): points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.move_to(*points[0]) @@ -83,14 +83,13 @@ class GerberCairoContext(GerberContext): self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) # You actually have to do this... if arc.direction == 'counterclockwise': - self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + self.ctx.arc(center[0], center[1], radius, angle1, angle2) else: - self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) + self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) self.ctx.move_to(*end) # ...lame def _render_region(self, region, color): self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - #self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) @@ -106,9 +105,9 @@ class GerberCairoContext(GerberContext): angle1 = p.start_angle angle2 = p.end_angle if p.direction == 'counterclockwise': - self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + self.ctx.arc(center[0], center[1], radius, angle1, angle2) else: - self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) + self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) self.ctx.fill() def _render_circle(self, circle, color): @@ -116,7 +115,7 @@ class GerberCairoContext(GerberContext): self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) - self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.arc(center[0], center[1], circle.radius * self.scale[0], 0, 2 * math.pi) self.ctx.fill() def _render_rectangle(self, rectangle, color): @@ -148,7 +147,7 @@ class GerberCairoContext(GerberContext): self.ctx.scale(1, -1) def _paint_inverted_layer(self): - self.ctx.set_source_rgba(*self.background_color) + self.ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2]) self.ctx.set_operator(cairo.OPERATOR_OVER) self.ctx.paint() self.ctx.set_operator(cairo.OPERATOR_CLEAR) @@ -156,7 +155,7 @@ class GerberCairoContext(GerberContext): def _paint_background(self): if not self.bg: self.bg = True - self.ctx.set_source_rgba(*self.background_color) + self.ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2]) self.ctx.paint() def dump(self, filename): -- cgit From d69f50e0f62570a4c327cb8fe4f886f439196010 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Wed, 2 Dec 2015 12:44:30 +0800 Subject: Make the hit accessible from the drawable Hit, fix crash with cario drawing rect --- gerber/render/cairo_backend.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 81c5ce4..4a0724f 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -124,7 +124,7 @@ class GerberCairoContext(GerberContext): self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) - self.ctx.rectangle(*ll,width=width, height=height) + self.ctx.rectangle(ll[0], ll[1], width, height) self.ctx.fill() def _render_obround(self, obround, color): -- cgit From 206f4c57ab66f8a6753015340315991b40178c9b Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Wed, 16 Dec 2015 18:59:25 +0800 Subject: Fix drawing arcs. Dont crash for arcs with rectangular apertures. Fix crash with board size of zero for only one drill --- gerber/render/cairo_backend.py | 1 + 1 file changed, 1 insertion(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 4a0724f..4d71199 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -87,6 +87,7 @@ class GerberCairoContext(GerberContext): else: self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) self.ctx.move_to(*end) # ...lame + self.ctx.stroke() def _render_region(self, region, color): self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) -- cgit From 1cb269131bc52f0b1a1e69cef0466f2d994d52a8 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sat, 19 Dec 2015 21:54:29 -0500 Subject: Allow negative render of soldermask per #50 Update example code and rendering to show change --- gerber/render/cairo_backend.py | 121 ++++++++++++++++++++++++++++------------- gerber/render/render.py | 21 ++++++- gerber/render/theme.py | 50 +++++++++++++++++ 3 files changed, 152 insertions(+), 40 deletions(-) create mode 100644 gerber/render/theme.py (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 345f331..6aaffd4 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -25,6 +25,7 @@ import tempfile from ..primitives import * + class GerberCairoContext(GerberContext): def __init__(self, scale=300): GerberContext.__init__(self) @@ -32,42 +33,72 @@ class GerberCairoContext(GerberContext): self.surface = None self.ctx = None self.bg = False - + self.mask = None + self.mask_ctx = None + self.origin_in_pixels = None + self.size_in_pixels = None + def set_bounds(self, bounds): origin_in_inch = (bounds[0][0], bounds[1][0]) size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) size_in_pixels = map(mul, size_in_inch, self.scale) + self.origin_in_pixels = tuple(map(mul, origin_in_inch, self.scale)) if self.origin_in_pixels is None else self.origin_in_pixels + self.size_in_pixels = size_in_pixels if self.size_in_pixels is None else self.size_in_pixels if self.surface is None: + self.surface_buffer = tempfile.NamedTemporaryFile() self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) self.ctx = cairo.Context(self.surface) self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) self.ctx.scale(1, -1) self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) - # self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), -origin_in_inch[1]*self.scale[1]) + + self.mask_buffer = tempfile.NamedTemporaryFile() + self.mask = cairo.SVGSurface(self.mask_buffer, size_in_pixels[0], size_in_pixels[1]) + self.mask_ctx = cairo.Context(self.mask) + self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) + self.mask_ctx.scale(1, -1) + self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) - if isinstance(line.aperture, Circle): - width = line.aperture.diameter + if not self.invert: self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(width * self.scale[0]) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.ctx.move_to(*start) - self.ctx.line_to(*end) - self.ctx.stroke() - elif isinstance(line.aperture, Rectangle): - points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.move_to(*points[0]) - for point in points[1:]: - self.ctx.line_to(*point) - self.ctx.fill() + if isinstance(line.aperture, Circle): + width = line.aperture.diameter + self.ctx.set_line_width(width * self.scale[0]) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) + self.ctx.line_to(*end) + self.ctx.stroke() + elif isinstance(line.aperture, Rectangle): + points = [tuple(map(mul, x, self.scale)) for x in line.vertices] + self.ctx.set_line_width(0) + self.ctx.move_to(*points[0]) + for point in points[1:]: + self.ctx.line_to(*point) + self.ctx.fill() + else: + self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) + if isinstance(line.aperture, Circle): + width = line.aperture.diameter + self.mask_ctx.set_line_width(0) + self.mask_ctx.set_line_width(width * self.scale[0]) + self.mask_ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.mask_ctx.move_to(*start) + self.mask_ctx.line_to(*end) + self.mask_ctx.stroke() + elif isinstance(line.aperture, Rectangle): + points = [tuple(map(mul, x, self.scale)) for x in line.vertices] + self.mask_ctx.set_line_width(0) + self.mask_ctx.move_to(*points[0]) + for point in points[1:]: + self.mask_ctx.line_to(*point) + self.mask_ctx.fill() def _render_arc(self, arc, color): center = map(mul, arc.center, self.scale) @@ -78,7 +109,7 @@ class GerberCairoContext(GerberContext): angle2 = arc.end_angle width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert)else cairo.OPERATOR_CLEAR) + self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) # You actually have to do this... @@ -112,20 +143,34 @@ class GerberCairoContext(GerberContext): def _render_circle(self, circle, color): center = tuple(map(mul, circle.position, self.scale)) - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) - self.ctx.fill() + if not self.invert: + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() + else: + self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) + self.mask_ctx.set_line_width(0) + self.mask_ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.mask_ctx.fill() def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.rectangle(*ll,width=width, height=height) - self.ctx.fill() + if not self.invert: + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.rectangle(*ll, width=width, height=height) + self.ctx.fill() + else: + self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) + self.mask_ctx.set_line_width(0) + self.mask_ctx.rectangle(*ll, width=width, height=height) + self.mask_ctx.fill() def _render_obround(self, obround, color): self._render_circle(obround.subshapes['circle1'], color) @@ -140,17 +185,23 @@ class GerberCairoContext(GerberContext): self.ctx.set_font_size(200) self._render_circle(Circle(primitive.position, 0.01), color) self.ctx.set_source_rgb(*color) - self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position]) self.ctx.scale(1, -1) self.ctx.show_text(primitive.net_name) self.ctx.scale(1, -1) def _paint_inverted_layer(self): - self.ctx.set_source_rgba(*self.background_color) + self.mask_ctx.set_operator(cairo.OPERATOR_OVER) + self.mask_ctx.set_source_rgba(*self.color, alpha=self.alpha) + self.mask_ctx.paint() + + def _render_mask(self): self.ctx.set_operator(cairo.OPERATOR_OVER) + ptn = cairo.SurfacePattern(self.mask) + ptn.set_matrix(cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1])) + self.ctx.set_source(ptn) self.ctx.paint() - self.ctx.set_operator(cairo.OPERATOR_CLEAR) def _paint_background(self): if not self.bg: @@ -160,21 +211,17 @@ class GerberCairoContext(GerberContext): def dump(self, filename): is_svg = filename.lower().endswith(".svg") - if is_svg: self.surface.finish() self.surface_buffer.flush() - with open(filename, "w") as f: self.surface_buffer.seek(0) f.write(self.surface_buffer.read()) f.flush() - else: self.surface.write_to_png(filename) - + def dump_svg_str(self): self.surface.finish() self.surface_buffer.flush() return self.surface_buffer.read() - \ No newline at end of file diff --git a/gerber/render/render.py b/gerber/render/render.py index 8f49796..737061e 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -23,12 +23,13 @@ Rendering Render Gerber and Excellon files to a variety of formats. The render module currently supports SVG rendering using the `svgwrite` library. """ + + +from ..primitives import * from ..gerber_statements import (CommentStmt, UnknownStmt, EofStmt, ParamStmt, CoordStmt, ApertureStmt, RegionModeStmt, - QuadrantModeStmt, -) + QuadrantModeStmt,) -from ..primitives import * class GerberContext(object): """ Gerber rendering context base class @@ -182,3 +183,17 @@ class GerberContext(object): def _render_test_record(self, primitive, color): pass + +class Renderable(object): + def __init__(self, color=None, alpha=None, invert=False): + self.color = color + self.alpha = alpha + self.invert = invert + + def to_render(self): + """ Override this in subclass. Should return a list of Primitives or Renderables + """ + raise NotImplementedError('to_render() must be implemented in subclass') + + def apply_theme(self, theme): + raise NotImplementedError('apply_theme() must be implemented in subclass') diff --git a/gerber/render/theme.py b/gerber/render/theme.py new file mode 100644 index 0000000..5d39bb6 --- /dev/null +++ b/gerber/render/theme.py @@ -0,0 +1,50 @@ +#! /usr/bin/env python +# -*- coding: utf-8 -*- + +# Copyright 2013-2014 Paulo Henrique Silva + +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at + +# http://www.apache.org/licenses/LICENSE-2.0 + +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +COLORS = { + 'black': (0.0, 0.0, 0.0), + 'white': (1.0, 1.0, 1.0), + 'fr-4': (0.702, 0.655, 0.192), + 'green soldermask': (0.0, 0.612, 0.396), + 'blue soldermask': (0.059, 0.478, 0.651), + 'red soldermask': (0.968, 0.169, 0.165), + 'black soldermask': (0.298, 0.275, 0.282), + 'enig copper': (0.780, 0.588, 0.286), + 'hasl copper': (0.871, 0.851, 0.839) +} + + +class RenderSettings(object): + def __init__(self, color, alpha=1.0, invert=False): + self.color = color + self.alpha = alpha + self.invert = False + + +class Theme(object): + def __init__(self, **kwargs): + self.background = kwargs.get('background', RenderSettings(COLORS['black'], 0.0)) + self.topsilk = kwargs.get('topsilk', RenderSettings(COLORS['white'])) + self.topsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white'])) + self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True)) + self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True)) + self.top = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) + self.bottom = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) + self.drill = kwargs.get('drill', self.background) + + -- cgit From 60c5906b29b6427a5190d31c7bb5511e0bf78fd4 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 20 Dec 2015 15:24:20 -0500 Subject: Clean up negative render code --- gerber/render/cairo_backend.py | 145 ++++++++++++++++++++--------------------- 1 file changed, 69 insertions(+), 76 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 6aaffd4..c8f94ff 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -44,18 +44,14 @@ class GerberCairoContext(GerberContext): size_in_pixels = map(mul, size_in_inch, self.scale) self.origin_in_pixels = tuple(map(mul, origin_in_inch, self.scale)) if self.origin_in_pixels is None else self.origin_in_pixels self.size_in_pixels = size_in_pixels if self.size_in_pixels is None else self.size_in_pixels - if self.surface is None: - self.surface_buffer = tempfile.NamedTemporaryFile() self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) self.ctx = cairo.Context(self.surface) self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) self.ctx.scale(1, -1) self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) - - self.mask_buffer = tempfile.NamedTemporaryFile() - self.mask = cairo.SVGSurface(self.mask_buffer, size_in_pixels[0], size_in_pixels[1]) + self.mask = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1]) self.mask_ctx = cairo.Context(self.mask) self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) self.mask_ctx.scale(1, -1) @@ -65,40 +61,27 @@ class GerberCairoContext(GerberContext): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) if not self.invert: - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - if isinstance(line.aperture, Circle): - width = line.aperture.diameter - self.ctx.set_line_width(width * self.scale[0]) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.ctx.move_to(*start) - self.ctx.line_to(*end) - self.ctx.stroke() - elif isinstance(line.aperture, Rectangle): - points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - self.ctx.set_line_width(0) - self.ctx.move_to(*points[0]) - for point in points[1:]: - self.ctx.line_to(*point) - self.ctx.fill() + ctx = self.ctx + ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) - if isinstance(line.aperture, Circle): - width = line.aperture.diameter - self.mask_ctx.set_line_width(0) - self.mask_ctx.set_line_width(width * self.scale[0]) - self.mask_ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.mask_ctx.move_to(*start) - self.mask_ctx.line_to(*end) - self.mask_ctx.stroke() - elif isinstance(line.aperture, Rectangle): - points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - self.mask_ctx.set_line_width(0) - self.mask_ctx.move_to(*points[0]) - for point in points[1:]: - self.mask_ctx.line_to(*point) - self.mask_ctx.fill() + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + if isinstance(line.aperture, Circle): + width = line.aperture.diameter + ctx.set_line_width(width * self.scale[0]) + ctx.set_line_cap(cairo.LINE_CAP_ROUND) + ctx.move_to(*start) + ctx.line_to(*end) + ctx.stroke() + elif isinstance(line.aperture, Rectangle): + points = [tuple(map(mul, x, self.scale)) for x in line.vertices] + ctx.set_line_width(0) + ctx.move_to(*points[0]) + for point in points[1:]: + ctx.line_to(*point) + ctx.fill() def _render_arc(self, arc, color): center = map(mul, arc.center, self.scale) @@ -108,26 +91,38 @@ class GerberCairoContext(GerberContext): angle1 = arc.start_angle angle2 = arc.end_angle width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(width * self.scale[0]) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.ctx.move_to(*start) # You actually have to do this... + if not self.invert: + ctx = self.ctx + ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + else: + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.set_line_width(width * self.scale[0]) + ctx.set_line_cap(cairo.LINE_CAP_ROUND) + ctx.move_to(*start) # You actually have to do this... if arc.direction == 'counterclockwise': - self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) else: - self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) - self.ctx.move_to(*end) # ...lame + ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) + ctx.move_to(*end) # ...lame def _render_region(self, region, color): - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) - self.ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale))) + if not self.invert: + ctx = self.ctx + ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + else: + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.set_line_width(0) + ctx.set_line_cap(cairo.LINE_CAP_ROUND) + ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale))) for p in region.primitives: if isinstance(p, Line): - self.ctx.line_to(*tuple(map(mul, p.end, self.scale))) + ctx.line_to(*tuple(map(mul, p.end, self.scale))) else: center = map(mul, p.center, self.scale) start = map(mul, p.start, self.scale) @@ -136,41 +131,39 @@ class GerberCairoContext(GerberContext): angle1 = p.start_angle angle2 = p.end_angle if p.direction == 'counterclockwise': - self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) else: - self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) - self.ctx.fill() + ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) + ctx.fill() def _render_circle(self, circle, color): center = tuple(map(mul, circle.position, self.scale)) if not self.invert: - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) - self.ctx.fill() + ctx = self.ctx + ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) - self.mask_ctx.set_line_width(0) - self.mask_ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) - self.mask_ctx.fill() + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.set_line_width(0) + ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) + ctx.fill() def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) if not self.invert: - self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.rectangle(*ll, width=width, height=height) - self.ctx.fill() + ctx = self.ctx + ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if rectangle.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR) - self.mask_ctx.set_line_width(0) - self.mask_ctx.rectangle(*ll, width=width, height=height) - self.mask_ctx.fill() + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.set_line_width(0) + ctx.rectangle(*ll, width=width, height=height) + ctx.fill() def _render_obround(self, obround, color): self._render_circle(obround.subshapes['circle1'], color) @@ -185,7 +178,7 @@ class GerberCairoContext(GerberContext): self.ctx.set_font_size(200) self._render_circle(Circle(primitive.position, 0.01), color) self.ctx.set_source_rgb(*color) - self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR) self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position]) self.ctx.scale(1, -1) self.ctx.show_text(primitive.net_name) -- cgit From af5541ac93b222c05229ee05c9def8dbae5f6e25 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Sun, 20 Dec 2015 23:54:20 -0500 Subject: Allow renderer to write to memory per #38 Some updates to rendering colors/themes --- gerber/render/cairo_backend.py | 19 ++++++++++++++++--- gerber/render/theme.py | 17 +++++++++++++---- 2 files changed, 29 insertions(+), 7 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index c8f94ff..8283ae0 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -15,16 +15,20 @@ # See the License for the specific language governing permissions and # limitations under the License. -from .render import GerberContext import cairocffi as cairo - from operator import mul import math import tempfile +from .render import GerberContext from ..primitives import * +try: + from cStringIO import StringIO +except(ImportError): + from io import StringIO + class GerberCairoContext(GerberContext): def __init__(self, scale=300): @@ -184,7 +188,7 @@ class GerberCairoContext(GerberContext): self.ctx.show_text(primitive.net_name) self.ctx.scale(1, -1) - def _paint_inverted_layer(self): + def _clear_mask(self): self.mask_ctx.set_operator(cairo.OPERATOR_OVER) self.mask_ctx.set_source_rgba(*self.color, alpha=self.alpha) self.mask_ctx.paint() @@ -214,7 +218,16 @@ class GerberCairoContext(GerberContext): else: self.surface.write_to_png(filename) + def dump_str(self): + """ Return a string containing the rendered image. + """ + fobj = StringIO() + self.surface.write_to_png(fobj) + return fobj.getvalue() + def dump_svg_str(self): + """ Return a string containg the rendered SVG. + """ self.surface.finish() self.surface_buffer.flush() return self.surface_buffer.read() diff --git a/gerber/render/theme.py b/gerber/render/theme.py index 5d39bb6..eae3735 100644 --- a/gerber/render/theme.py +++ b/gerber/render/theme.py @@ -19,12 +19,13 @@ COLORS = { 'black': (0.0, 0.0, 0.0), 'white': (1.0, 1.0, 1.0), - 'fr-4': (0.702, 0.655, 0.192), + 'fr-4': (0.290, 0.345, 0.0), 'green soldermask': (0.0, 0.612, 0.396), 'blue soldermask': (0.059, 0.478, 0.651), 'red soldermask': (0.968, 0.169, 0.165), 'black soldermask': (0.298, 0.275, 0.282), - 'enig copper': (0.780, 0.588, 0.286), + 'purple soldermask': (0.2, 0.0, 0.334), + 'enig copper': (0.686, 0.525, 0.510), 'hasl copper': (0.871, 0.851, 0.839) } @@ -40,11 +41,19 @@ class Theme(object): def __init__(self, **kwargs): self.background = kwargs.get('background', RenderSettings(COLORS['black'], 0.0)) self.topsilk = kwargs.get('topsilk', RenderSettings(COLORS['white'])) - self.topsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white'])) - self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True)) + self.bottomsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white'])) self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True)) + self.bottommask = kwargs.get('bottommask', RenderSettings(COLORS['green soldermask'], 0.8, True)) self.top = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) self.bottom = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) self.drill = kwargs.get('drill', self.background) +THEMES = { + 'Default': Theme(), + 'Osh Park': Theme(top=COLORS['enig copper'], + bottom=COLORS['enig copper'], + topmask=COLORS['purple soldermask'], + bottommask=COLORS['purple soldermask']), +} + -- cgit From 6f876edd09d9b81649691e529f85653f14b8fd1c Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Tue, 22 Dec 2015 02:45:48 -0500 Subject: Add PCB interface this incorporates some of @chintal's layers.py changes PCB.from_directory() simplifies loading of multiple gerbers the PCB() class should be pretty helpful going forward... the context classes could use some cleaning up, although I'd like to wait until the freecad stuff gets merged, that way we can try to refactor the context base to support more use cases --- gerber/render/cairo_backend.py | 62 ++++++++++++++++++++++++++++++++---------- gerber/render/render.py | 19 ++++--------- gerber/render/theme.py | 34 +++++++++++++++-------- 3 files changed, 75 insertions(+), 40 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 8283ae0..7acf29a 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -17,7 +17,7 @@ import cairocffi as cairo -from operator import mul +from operator import mul, div import math import tempfile @@ -39,16 +39,16 @@ class GerberCairoContext(GerberContext): self.bg = False self.mask = None self.mask_ctx = None - self.origin_in_pixels = None - self.size_in_pixels = None + self.origin_in_inch = None + self.size_in_inch = None - def set_bounds(self, bounds): + def set_bounds(self, bounds, new_surface=False): origin_in_inch = (bounds[0][0], bounds[1][0]) size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) size_in_pixels = map(mul, size_in_inch, self.scale) - self.origin_in_pixels = tuple(map(mul, origin_in_inch, self.scale)) if self.origin_in_pixels is None else self.origin_in_pixels - self.size_in_pixels = size_in_pixels if self.size_in_pixels is None else self.size_in_pixels - if self.surface is None: + self.origin_in_inch = origin_in_inch if self.origin_in_inch is None else self.origin_in_inch + self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch + if (self.surface is None) or new_surface: self.surface_buffer = tempfile.NamedTemporaryFile() self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) self.ctx = cairo.Context(self.surface) @@ -61,6 +61,36 @@ class GerberCairoContext(GerberContext): self.mask_ctx.scale(1, -1) self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) + def render_layers(self, layers, filename): + """ Render a set of layers + """ + self.set_bounds(layers[0].bounds, True) + self._paint_background(True) + for layer in layers: + self._render_layer(layer) + self.dump(filename) + + @property + def origin_in_pixels(self): + return tuple(map(mul, self.origin_in_inch, self.scale)) if self.origin_in_inch is not None else (0.0, 0.0) + + @property + def size_in_pixels(self): + return tuple(map(mul, self.size_in_inch, self.scale)) if self.size_in_inch is not None else (0.0, 0.0) + + def _render_layer(self, layer): + self.color = layer.settings.color + self.alpha = layer.settings.alpha + self.invert = layer.settings.invert + if layer.settings.mirror: + raise Warning('mirrored layers aren\'t supported yet...') + if self.invert: + self._clear_mask() + for p in layer.primitives: + self.render(p) + if self.invert: + self._render_mask() + def _render_line(self, line, color): start = map(mul, line.start, self.scale) end = map(mul, line.end, self.scale) @@ -178,12 +208,13 @@ class GerberCairoContext(GerberContext): self._render_circle(circle, color) def _render_test_record(self, primitive, color): - self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL) - self.ctx.set_font_size(200) - self._render_circle(Circle(primitive.position, 0.01), color) + position = tuple(map(add, primitive.position, self.origin_in_inch)) + self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD) + self.ctx.set_font_size(13) + self._render_circle(Circle(position, 0.015), color) self.ctx.set_source_rgb(*color) self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR) - self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position]) + self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position]) self.ctx.scale(1, -1) self.ctx.show_text(primitive.net_name) self.ctx.scale(1, -1) @@ -196,14 +227,15 @@ class GerberCairoContext(GerberContext): def _render_mask(self): self.ctx.set_operator(cairo.OPERATOR_OVER) ptn = cairo.SurfacePattern(self.mask) - ptn.set_matrix(cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1])) + ptn.set_matrix(cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], + y0=self.size_in_pixels[1] + self.origin_in_pixels[1])) self.ctx.set_source(ptn) self.ctx.paint() - def _paint_background(self): - if not self.bg: + def _paint_background(self, force=False): + if (not self.bg) or force: self.bg = True - self.ctx.set_source_rgba(*self.background_color) + self.ctx.set_source_rgba(*self.background_color, alpha=1.0) self.ctx.paint() def dump(self, filename): diff --git a/gerber/render/render.py b/gerber/render/render.py index 737061e..c76ead5 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -60,7 +60,6 @@ class GerberContext(object): def __init__(self, units='inch'): self._units = units self._color = (0.7215, 0.451, 0.200) - self._drill_color = (0.25, 0.25, 0.25) self._background_color = (0.0, 0.0, 0.0) self._alpha = 1.0 self._invert = False @@ -150,7 +149,7 @@ class GerberContext(object): elif isinstance(primitive, Polygon): self._render_polygon(primitive, color) elif isinstance(primitive, Drill): - self._render_drill(primitive, self.drill_color) + self._render_drill(primitive, color) elif isinstance(primitive, TestRecord): self._render_test_record(primitive, color) else: @@ -185,15 +184,7 @@ class GerberContext(object): class Renderable(object): - def __init__(self, color=None, alpha=None, invert=False): - self.color = color - self.alpha = alpha - self.invert = invert - - def to_render(self): - """ Override this in subclass. Should return a list of Primitives or Renderables - """ - raise NotImplementedError('to_render() must be implemented in subclass') - - def apply_theme(self, theme): - raise NotImplementedError('apply_theme() must be implemented in subclass') + def __init__(self, settings=None): + self.settings = settings + self.primitives = [] + diff --git a/gerber/render/theme.py b/gerber/render/theme.py index eae3735..5978831 100644 --- a/gerber/render/theme.py +++ b/gerber/render/theme.py @@ -19,6 +19,9 @@ COLORS = { 'black': (0.0, 0.0, 0.0), 'white': (1.0, 1.0, 1.0), + 'red': (1.0, 0.0, 0.0), + 'green': (0.0, 1.0, 0.0), + 'blue' : (0.0, 0.0, 1.0), 'fr-4': (0.290, 0.345, 0.0), 'green soldermask': (0.0, 0.612, 0.396), 'blue soldermask': (0.059, 0.478, 0.651), @@ -31,29 +34,38 @@ COLORS = { class RenderSettings(object): - def __init__(self, color, alpha=1.0, invert=False): + def __init__(self, color, alpha=1.0, invert=False, mirror=False): self.color = color self.alpha = alpha - self.invert = False + self.invert = invert + self.mirror = mirror class Theme(object): - def __init__(self, **kwargs): - self.background = kwargs.get('background', RenderSettings(COLORS['black'], 0.0)) + def __init__(self, name=None, **kwargs): + self.name = 'Default' if name is None else name + self.background = kwargs.get('background', RenderSettings(COLORS['black'], alpha=0.0)) self.topsilk = kwargs.get('topsilk', RenderSettings(COLORS['white'])) self.bottomsilk = kwargs.get('bottomsilk', RenderSettings(COLORS['white'])) - self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], 0.8, True)) - self.bottommask = kwargs.get('bottommask', RenderSettings(COLORS['green soldermask'], 0.8, True)) + self.topmask = kwargs.get('topmask', RenderSettings(COLORS['green soldermask'], alpha=0.8, invert=True)) + self.bottommask = kwargs.get('bottommask', RenderSettings(COLORS['green soldermask'], alpha=0.8, invert=True)) self.top = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) self.bottom = kwargs.get('top', RenderSettings(COLORS['hasl copper'])) - self.drill = kwargs.get('drill', self.background) + self.drill = kwargs.get('drill', RenderSettings(COLORS['black'])) + self.ipc_netlist = kwargs.get('ipc_netlist', RenderSettings(COLORS['red'])) + def __getitem__(self, key): + return getattr(self, key) THEMES = { 'Default': Theme(), - 'Osh Park': Theme(top=COLORS['enig copper'], - bottom=COLORS['enig copper'], - topmask=COLORS['purple soldermask'], - bottommask=COLORS['purple soldermask']), + 'OSH Park': Theme(name='OSH Park', + top=RenderSettings(COLORS['enig copper']), + bottom=RenderSettings(COLORS['enig copper']), + topmask=RenderSettings(COLORS['purple soldermask'], alpha=0.8, invert=True), + bottommask=RenderSettings(COLORS['purple soldermask'], alpha=0.8, invert=True)), + 'Blue': Theme(name='Blue', + topmask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True), + bottommask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True)), } -- cgit From 5430fa6738b74f324c47c947477dd5b779db5d1c Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Tue, 22 Dec 2015 10:18:51 -0500 Subject: Python3 fix --- gerber/render/cairo_backend.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 7acf29a..c3e9ac2 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -17,7 +17,7 @@ import cairocffi as cairo -from operator import mul, div +from operator import mul import math import tempfile @@ -45,7 +45,7 @@ class GerberCairoContext(GerberContext): def set_bounds(self, bounds, new_surface=False): origin_in_inch = (bounds[0][0], bounds[1][0]) size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) - size_in_pixels = map(mul, size_in_inch, self.scale) + size_in_pixels = tuple(map(mul, size_in_inch, self.scale)) self.origin_in_inch = origin_in_inch if self.origin_in_inch is None else self.origin_in_inch self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch if (self.surface is None) or new_surface: -- cgit From 4a815bf25ddd1d378ec6ad5af008e5bbcd362b51 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Wed, 30 Dec 2015 14:05:00 +0800 Subject: First time any macro renders --- gerber/render/cairo_backend.py | 20 ++++++++++++++++++++ gerber/render/render.py | 5 +++++ 2 files changed, 25 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 4d71199..3ee38ae 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -122,11 +122,27 @@ class GerberCairoContext(GerberContext): def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) + + if rectangle.rotation != 0: + self.ctx.save() + + center = map(mul, rectangle.position, self.scale) + matrix = cairo.Matrix() + matrix.translate(center[0], center[1]) + # For drawing, we already handles the translation + ll[0] = ll[0] - center[0] + ll[1] = ll[1] - center[1] + matrix.rotate(rectangle.rotation) + self.ctx.transform(matrix) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(0) self.ctx.rectangle(ll[0], ll[1], width, height) self.ctx.fill() + + if rectangle.rotation != 0: + self.ctx.restore() def _render_obround(self, obround, color): self._render_circle(obround.subshapes['circle1'], color) @@ -135,6 +151,10 @@ class GerberCairoContext(GerberContext): def _render_drill(self, circle, color): self._render_circle(circle, color) + + def _render_amgroup(self, amgroup, color): + for primitive in amgroup.primitives: + self.render(primitive) def _render_test_record(self, primitive, color): self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL) diff --git a/gerber/render/render.py b/gerber/render/render.py index 8f49796..ac01e52 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -150,6 +150,8 @@ class GerberContext(object): self._render_polygon(primitive, color) elif isinstance(primitive, Drill): self._render_drill(primitive, self.drill_color) + elif isinstance(primitive, AMGroup): + self._render_amgroup(primitive, color) elif isinstance(primitive, TestRecord): self._render_test_record(primitive, color) else: @@ -178,6 +180,9 @@ class GerberContext(object): def _render_drill(self, primitive, color): pass + + def _render_amgroup(self, primitive, color): + pass def _render_test_record(self, primitive, color): pass -- cgit From 96692b22216fdfe11f2ded104ac0bdba3b7866a5 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Wed, 30 Dec 2015 15:32:44 +0800 Subject: Render primitives for some aperture macros --- gerber/render/render.py | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/render.py b/gerber/render/render.py index ac01e52..b518385 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -152,6 +152,8 @@ class GerberContext(object): self._render_drill(primitive, self.drill_color) elif isinstance(primitive, AMGroup): self._render_amgroup(primitive, color) + elif isinstance(primitive, Outline): + self._render_region(primitive, color) elif isinstance(primitive, TestRecord): self._render_test_record(primitive, color) else: -- cgit From f61eee807f87c329f6f88645ecdb48f01b887c52 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Wed, 30 Dec 2015 18:44:07 +0800 Subject: Render polygon flashes --- gerber/render/cairo_backend.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 3ee38ae..68e9e98 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -148,6 +148,22 @@ class GerberCairoContext(GerberContext): self._render_circle(obround.subshapes['circle1'], color) self._render_circle(obround.subshapes['circle2'], color) self._render_rectangle(obround.subshapes['rectangle'], color) + + def _render_polygon(self, polygon, color): + vertices = polygon.vertices + + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (polygon.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + + # Start from before the end so it is easy to iterate and make sure it is closed + self.ctx.move_to(*map(mul, vertices[-1], self.scale)) + for v in vertices: + self.ctx.line_to(*map(mul, v, self.scale)) + + self.ctx.fill() + def _render_drill(self, circle, color): self._render_circle(circle, color) -- cgit From 6a005436b475e3517fd6a583473b60e601bcc661 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Fri, 1 Jan 2016 12:25:38 -0500 Subject: Refactor a little pulled all rendering stuff out of the pcb/layer objects --- gerber/render/cairo_backend.py | 96 ++++++++++++++++++++++-------------------- gerber/render/render.py | 10 +++-- gerber/render/theme.py | 17 ++++---- 3 files changed, 65 insertions(+), 58 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index c3e9ac2..4e71e75 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -21,7 +21,8 @@ from operator import mul import math import tempfile -from .render import GerberContext +from .render import GerberContext, RenderSettings +from .theme import THEMES from ..primitives import * try: @@ -41,6 +42,15 @@ class GerberCairoContext(GerberContext): self.mask_ctx = None self.origin_in_inch = None self.size_in_inch = None + self._xform_matrix = None + + @property + def origin_in_pixels(self): + return tuple(map(mul, self.origin_in_inch, self.scale)) if self.origin_in_inch is not None else (0.0, 0.0) + + @property + def size_in_pixels(self): + return tuple(map(mul, self.size_in_inch, self.scale)) if self.size_in_inch is not None else (0.0, 0.0) def set_bounds(self, bounds, new_surface=False): origin_in_inch = (bounds[0][0], bounds[1][0]) @@ -60,34 +70,56 @@ class GerberCairoContext(GerberContext): self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) self.mask_ctx.scale(1, -1) self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) + self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1]) - def render_layers(self, layers, filename): + def render_layers(self, layers, filename, theme=THEMES['default']): """ Render a set of layers """ self.set_bounds(layers[0].bounds, True) self._paint_background(True) for layer in layers: - self._render_layer(layer) + self._render_layer(layer, theme) self.dump(filename) - @property - def origin_in_pixels(self): - return tuple(map(mul, self.origin_in_inch, self.scale)) if self.origin_in_inch is not None else (0.0, 0.0) + def dump(self, filename): + """ Save image as `filename` + """ + is_svg = filename.lower().endswith(".svg") + if is_svg: + self.surface.finish() + self.surface_buffer.flush() + with open(filename, "w") as f: + self.surface_buffer.seek(0) + f.write(self.surface_buffer.read()) + f.flush() + else: + self.surface.write_to_png(filename) - @property - def size_in_pixels(self): - return tuple(map(mul, self.size_in_inch, self.scale)) if self.size_in_inch is not None else (0.0, 0.0) + def dump_str(self): + """ Return a string containing the rendered image. + """ + fobj = StringIO() + self.surface.write_to_png(fobj) + return fobj.getvalue() + + def dump_svg_str(self): + """ Return a string containg the rendered SVG. + """ + self.surface.finish() + self.surface_buffer.flush() + return self.surface_buffer.read() - def _render_layer(self, layer): - self.color = layer.settings.color - self.alpha = layer.settings.alpha - self.invert = layer.settings.invert - if layer.settings.mirror: + def _render_layer(self, layer, theme=THEMES['default']): + settings = theme.get(layer.layer_class, RenderSettings()) + self.color = settings.color + self.alpha = settings.alpha + self.invert = settings.invert + if settings.mirror: raise Warning('mirrored layers aren\'t supported yet...') if self.invert: self._clear_mask() - for p in layer.primitives: - self.render(p) + for prim in layer.primitives: + self.render(prim) if self.invert: self._render_mask() @@ -209,10 +241,11 @@ class GerberCairoContext(GerberContext): def _render_test_record(self, primitive, color): position = tuple(map(add, primitive.position, self.origin_in_inch)) + self.ctx.set_operator(cairo.OPERATOR_OVER) self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD) self.ctx.set_font_size(13) self._render_circle(Circle(position, 0.015), color) - self.ctx.set_source_rgb(*color) + self.ctx.set_source_rgba(*color, alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR) self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position]) self.ctx.scale(1, -1) @@ -227,8 +260,7 @@ class GerberCairoContext(GerberContext): def _render_mask(self): self.ctx.set_operator(cairo.OPERATOR_OVER) ptn = cairo.SurfacePattern(self.mask) - ptn.set_matrix(cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], - y0=self.size_in_pixels[1] + self.origin_in_pixels[1])) + ptn.set_matrix(self._xform_matrix) self.ctx.set_source(ptn) self.ctx.paint() @@ -237,29 +269,3 @@ class GerberCairoContext(GerberContext): self.bg = True self.ctx.set_source_rgba(*self.background_color, alpha=1.0) self.ctx.paint() - - def dump(self, filename): - is_svg = filename.lower().endswith(".svg") - if is_svg: - self.surface.finish() - self.surface_buffer.flush() - with open(filename, "w") as f: - self.surface_buffer.seek(0) - f.write(self.surface_buffer.read()) - f.flush() - else: - self.surface.write_to_png(filename) - - def dump_str(self): - """ Return a string containing the rendered image. - """ - fobj = StringIO() - self.surface.write_to_png(fobj) - return fobj.getvalue() - - def dump_svg_str(self): - """ Return a string containg the rendered SVG. - """ - self.surface.finish() - self.surface_buffer.flush() - return self.surface_buffer.read() diff --git a/gerber/render/render.py b/gerber/render/render.py index c76ead5..6af8bf1 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -183,8 +183,10 @@ class GerberContext(object): pass -class Renderable(object): - def __init__(self, settings=None): - self.settings = settings - self.primitives = [] +class RenderSettings(object): + def __init__(self, color=(0.0, 0.0, 0.0), alpha=1.0, invert=False, mirror=False): + self.color = color + self.alpha = alpha + self.invert = invert + self.mirror = mirror diff --git a/gerber/render/theme.py b/gerber/render/theme.py index 5978831..e538df8 100644 --- a/gerber/render/theme.py +++ b/gerber/render/theme.py @@ -16,6 +16,8 @@ # limitations under the License. +from .render import RenderSettings + COLORS = { 'black': (0.0, 0.0, 0.0), 'white': (1.0, 1.0, 1.0), @@ -33,14 +35,6 @@ COLORS = { } -class RenderSettings(object): - def __init__(self, color, alpha=1.0, invert=False, mirror=False): - self.color = color - self.alpha = alpha - self.invert = invert - self.mirror = mirror - - class Theme(object): def __init__(self, name=None, **kwargs): self.name = 'Default' if name is None else name @@ -57,8 +51,13 @@ class Theme(object): def __getitem__(self, key): return getattr(self, key) + def get(self, key, noneval=None): + val = getattr(self, key) + return val if val is not None else noneval + + THEMES = { - 'Default': Theme(), + 'default': Theme(), 'OSH Park': Theme(name='OSH Park', top=RenderSettings(COLORS['enig copper']), bottom=RenderSettings(COLORS['enig copper']), -- cgit From 83ae0670d11b5f5ef8ba3a6c362b7129a9e31ab3 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Fri, 8 Jan 2016 00:19:47 +0800 Subject: More stability fixes for poorly constructed files --- gerber/render/cairo_backend.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 68e9e98..fbc4271 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -76,7 +76,10 @@ class GerberCairoContext(GerberContext): radius = self.scale[0] * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle - width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 + if isinstance(arc.aperture, Circle): + width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 + else: + width = max(arc.aperture.width, arc.aperture.height, 0.001) self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert)else cairo.OPERATOR_CLEAR) self.ctx.set_line_width(width * self.scale[0]) @@ -163,7 +166,6 @@ class GerberCairoContext(GerberContext): self.ctx.line_to(*map(mul, v, self.scale)) self.ctx.fill() - def _render_drill(self, circle, color): self._render_circle(circle, color) -- cgit From 96bdd0f59dbda9b755b0eb28eb44cb9a6eae1410 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 31 Jan 2016 15:24:57 +0800 Subject: Keep track of quadrant mode so we can draw full circles --- gerber/render/cairo_backend.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index fbc4271..7be7e6a 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -76,6 +76,9 @@ class GerberCairoContext(GerberContext): radius = self.scale[0] * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle + if angle1 == angle2 and arc.quadrant_mode != 'single-quadrant': + # Make the angles slightly different otherwise Cario will draw nothing + angle2 -= 0.000000001 if isinstance(arc.aperture, Circle): width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001 else: -- cgit From 29c0d82bf53907030d11df9eb09471b716a0be2e Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 27 Feb 2016 15:24:36 +0800 Subject: RS274X backend for rendering. Incompelte still --- gerber/render/rs274x_backend.py | 290 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 290 insertions(+) create mode 100644 gerber/render/rs274x_backend.py (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py new file mode 100644 index 0000000..0094192 --- /dev/null +++ b/gerber/render/rs274x_backend.py @@ -0,0 +1,290 @@ + +from .render import GerberContext +from ..gerber_statements import * +from ..primitives import AMGroup, Arc, Circle, Line, Rectangle + +class Rs274xContext(GerberContext): + + def __init__(self, settings): + GerberContext.__init__(self) + self.header = [] + self.body = [] + self.end = [EofStmt()] + + # Current values so we know if we have to execute + # moves, levey changes before anything else + self._level_polarity = None + self._pos = (None, None) + self._func = None + self._quadrant_mode = None + self._dcode = None + + self._next_dcode = 10 + self._rects = {} + self._circles = {} + self._macros = {} + + self._i_none = 0 + self._j_none = 0 + + self._define_dcodes() + + + def _define_dcodes(self): + + self._get_circle(.1575, 10) + self._get_circle(.035, 17) + self._get_rectangle(0.1575, 0.1181, 15) + self._get_rectangle(0.0492, 0.0118, 16) + self._get_circle(.0197, 11) + self._get_rectangle(0.0236, 0.0591, 12) + self._get_circle(.005, 18) + self._get_circle(.008, 19) + self._get_circle(.009, 20) + self._get_circle(.01, 21) + self._get_circle(.02, 22) + self._get_circle(.006, 23) + self._get_circle(.015, 24) + self._get_rectangle(0.1678, 0.1284, 26) + self._get_rectangle(0.0338, 0.0694, 25) + + def _simplify_point(self, point): + return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None) + + def _simplify_offset(self, point, offset): + + if point[0] != offset[0]: + xoffset = point[0] - offset[0] + else: + xoffset = self._i_none + + if point[1] != offset[1]: + yoffset = point[1] - offset[1] + else: + yoffset = self._j_none + + return (xoffset, yoffset) + + @property + def statements(self): + return self.header + self.body + self.end + + def set_bounds(self, bounds): + pass + + def _paint_background(self): + pass + + def _select_aperture(self, aperture): + + # Select the right aperture if not already selected + if aperture: + if isinstance(aperture, Circle): + aper = self._get_circle(aperture.diameter) + elif isinstance(aperture, Rectangle): + aper = self._get_rectangle(aperture.width, aperture.height) + else: + raise NotImplementedError('Line with invalid aperture type') + + if aper.d != self._dcode: + self.body.append(ApertureStmt(aper.d)) + self._dcode = aper.d + + def _render_line(self, line, color): + + self._select_aperture(line.aperture) + + # Get the right function + if self._func != CoordStmt.FUNC_LINEAR: + func = CoordStmt.FUNC_LINEAR + else: + func = None + self._func = CoordStmt.FUNC_LINEAR + + if self._pos != line.start: + self.body.append(CoordStmt.move(func, self._simplify_point(line.start))) + self._pos = line.start + # We already set the function, so the next command doesn't require that + func = None + + self.body.append(CoordStmt.line(func, self._simplify_point(line.end))) + self._pos = line.end + + def _render_arc(self, arc, color): + + # Optionally set the quadrant mode if it has changed: + if arc.quadrant_mode != self._quadrant_mode: + + if arc.quadrant_mode != 'multi-quadrant': + self.body.append(QuadrantModeStmt.single()) + else: + self.body.append(QuadrantModeStmt.multi()) + + self._quadrant_mode = arc.quadrant_mode + + # Select the right aperture if not already selected + self._select_aperture(arc.aperture) + + # Find the right movement mode. Always set to be sure it is really right + dir = arc.direction + if dir == 'clockwise': + func = CoordStmt.FUNC_ARC_CW + self._func = CoordStmt.FUNC_ARC_CW + elif dir == 'counterclockwise': + func = CoordStmt.FUNC_ARC_CCW + self._func = CoordStmt.FUNC_ARC_CCW + else: + raise ValueError('Invalid circular interpolation mode') + + if self._pos != arc.start: + # TODO I'm not sure if this is right + self.body.append(CoordStmt.move(CoordStmt.FUNC_LINEAR, self._simplify_point(arc.start))) + self._pos = arc.start + + center = self._simplify_offset(arc.center, arc.start) + end = self._simplify_point(arc.end) + self.body.append(CoordStmt.arc(func, end, center)) + self._pos = arc.end + + def _render_region(self, region, color): + + self._render_level_polarity(region) + + self.body.append(RegionModeStmt.on()) + + for p in region.primitives: + + if isinstance(p, Line): + self._render_line(p, color) + else: + self._render_arc(p, color) + + + self.body.append(RegionModeStmt.off()) + + def _render_level_polarity(self, region): + if region.level_polarity != self._level_polarity: + self._level_polarity = region.level_polarity + self.body.append(LPParamStmt.from_region(region)) + + def _render_flash(self, primitive, aperture): + + if aperture.d != self._dcode: + self.body.append(ApertureStmt(aperture.d)) + self._dcode = aperture.d + + self.body.append(CoordStmt.flash( self._simplify_point(primitive.position))) + self._pos = primitive.position + + def _get_circle(self, diameter, dcode = None): + '''Define a circlar aperture''' + + aper = self._circles.get(diameter, None) + + if not aper: + if not dcode: + dcode = self._next_dcode + self._next_dcode += 1 + else: + self._next_dcode = max(dcode + 1, self._next_dcode) + + aper = ADParamStmt.circle(dcode, diameter) + self._circles[diameter] = aper + self.header.append(aper) + + return aper + + def _render_circle(self, circle, color): + + aper = self._get_circle(circle.diameter) + self._render_flash(circle, aper) + + def _get_rectangle(self, width, height, dcode = None): + '''Get a rectanglar aperture. If it isn't defined, create it''' + + key = (width, height) + aper = self._rects.get(key, None) + + if not aper: + if not dcode: + dcode = self._next_dcode + self._next_dcode += 1 + else: + self._next_dcode = max(dcode + 1, self._next_dcode) + + aper = ADParamStmt.rect(dcode, width, height) + self._rects[(width, height)] = aper + self.header.append(aper) + + return aper + + def _render_rectangle(self, rectangle, color): + + aper = self._get_rectangle(rectangle.width, rectangle.height) + self._render_flash(rectangle, aper) + + def _render_obround(self, obround, color): + pass + + def _render_polygon(self, polygon, color): + pass + + def _render_drill(self, circle, color): + pass + + def _hash_amacro(self, amgroup): + '''Calculate a very quick hash code for deciding if we should even check AM groups for comparision''' + + hash = '' + for primitive in amgroup.primitives: + + hash += primitive.__class__.__name__[0] + if hasattr(primitive, 'primitives'): + hash += str(len(primitive.primitives)) + + return hash + + def _get_amacro(self, amgroup, dcode = None): + # Macros are a little special since we don't have a good way to compare them quickly + # but in most cases, this should work + + hash = self._hash_amacro(amgroup) + macro = self._macros.get(hash, None) + + if not macro: + # This is a new macro, so define it + if not dcode: + dcode = self._next_dcode + self._next_dcode += 1 + else: + self._next_dcode = max(dcode + 1, self._next_dcode) + + # Create the statements + # TODO + statements = [] + aperdef = ADParamStmt.macro(dcode, hash) + + # Store the dcode and the original so we can check if it really is the same + macro = (aperdef, amgroup) + self._macros[hash] = macro + + else: + # We hae a definition, but check that the groups actually are the same + offset = (amgroup.position[0] - macro[1].position[0], amgroup.position[1] - macro[1].position[1]) + if not amgroup.equivalent(macro[1], offset): + raise ValueError('Two AMGroup have the same hash but are not equivalent') + + return macro[0] + + def _render_amgroup(self, amgroup, color): + + aper = self._get_amacro(amgroup) + self._render_flash(amgroup, aper) + + def _render_inverted_layer(self): + pass + + def post_render_primitives(self): + '''No more primitives, so set the end marker''' + + self.body.append() \ No newline at end of file -- cgit From 223a010831f0d9dae4bd6d2e626a603a78eb0b1d Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 27 Feb 2016 18:18:04 +0800 Subject: Fix critical issue with rotatin points (when the angle is zero the y would be flipped). Render AM with outline to gerber --- gerber/render/rs274x_backend.py | 61 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 57 insertions(+), 4 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 0094192..bdb77f4 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -1,12 +1,49 @@ from .render import GerberContext +from ..am_statements import * from ..gerber_statements import * -from ..primitives import AMGroup, Arc, Circle, Line, Rectangle +from ..primitives import AMGroup, Arc, Circle, Line, Outline, Rectangle +from copy import deepcopy + +class AMGroupContext(object): + '''A special renderer to generate aperature macros from an AMGroup''' + + def __init__(self): + self.statements = [] + + def render(self, amgroup, name): + + # Clone ourselves, then offset by the psotion so that + # our render doesn't have to consider offset. Just makes things simplder + nooffset_group = deepcopy(amgroup) + nooffset_group.position = (0, 0) + + # Now draw the shapes + for primitive in nooffset_group.primitives: + if isinstance(primitive, Outline): + self._render_outline(primitive) + + statement = AMParamStmt('AM', name, self._statements_to_string()) + return statement + + def _statements_to_string(self): + macro = '' + + for statement in self.statements: + macro += statement.to_gerber() + + return macro + + def _render_outline(self, outline): + self.statements.append(AMOutlinePrimitive.from_primitive(outline)) + + class Rs274xContext(GerberContext): def __init__(self, settings): GerberContext.__init__(self) + self.comments = [] self.header = [] self.body = [] self.end = [EofStmt()] @@ -27,8 +64,13 @@ class Rs274xContext(GerberContext): self._i_none = 0 self._j_none = 0 + self.settings = settings + + self._start_header(settings) self._define_dcodes() + def _start_header(self, settings): + self.header.append(MOParamStmt.from_units(settings.units)) def _define_dcodes(self): @@ -67,7 +109,7 @@ class Rs274xContext(GerberContext): @property def statements(self): - return self.header + self.body + self.end + return self.comments + self.header + self.body + self.end def set_bounds(self, bounds): pass @@ -93,6 +135,8 @@ class Rs274xContext(GerberContext): def _render_line(self, line, color): self._select_aperture(line.aperture) + + self._render_level_polarity(line) # Get the right function if self._func != CoordStmt.FUNC_LINEAR: @@ -125,6 +169,8 @@ class Rs274xContext(GerberContext): # Select the right aperture if not already selected self._select_aperture(arc.aperture) + self._render_level_polarity(arc) + # Find the right movement mode. Always set to be sure it is really right dir = arc.direction if dir == 'clockwise': @@ -243,7 +289,7 @@ class Rs274xContext(GerberContext): hash += str(len(primitive.primitives)) return hash - + def _get_amacro(self, amgroup, dcode = None): # Macros are a little special since we don't have a good way to compare them quickly # but in most cases, this should work @@ -261,8 +307,13 @@ class Rs274xContext(GerberContext): # Create the statements # TODO - statements = [] + amrenderer = AMGroupContext() + statement = amrenderer.render(amgroup, hash) + + self.header.append(statement) + aperdef = ADParamStmt.macro(dcode, hash) + self.header.append(aperdef) # Store the dcode and the original so we can check if it really is the same macro = (aperdef, amgroup) @@ -281,6 +332,8 @@ class Rs274xContext(GerberContext): aper = self._get_amacro(amgroup) self._render_flash(amgroup, aper) + + def _render_inverted_layer(self): pass -- cgit From 20a9af279ac2217a39b73903ff94b916a3025be2 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Tue, 1 Mar 2016 00:06:14 +0800 Subject: More rendering of AMGroup to statements --- gerber/render/rs274x_backend.py | 72 +++++++++++++++++++++++++++++++++++++---- 1 file changed, 65 insertions(+), 7 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index bdb77f4..2a0420e 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -22,6 +22,14 @@ class AMGroupContext(object): for primitive in nooffset_group.primitives: if isinstance(primitive, Outline): self._render_outline(primitive) + elif isinstance(primitive, Circle): + self._render_circle(primitive) + elif isinstance(primitive, Rectangle): + self._render_rectangle(primitive) + elif isinstance(primitive, Line): + self._render_line(primitive) + else: + raise ValueError('amgroup') statement = AMParamStmt('AM', name, self._statements_to_string()) return statement @@ -33,10 +41,21 @@ class AMGroupContext(object): macro += statement.to_gerber() return macro + + def _render_circle(self, circle): + self.statements.append(AMCirclePrimitive.from_primitive(circle)) + + def _render_rectangle(self, rectangle): + self.statements.append(AMCenterLinePrimitive.from_primitive(rectangle)) + + def _render_line(self, line): + self.statements.append(AMVectorLinePrimitive.from_primitive(line)) def _render_outline(self, outline): self.statements.append(AMOutlinePrimitive.from_primitive(outline)) - + + def _render_thermal(self, thermal): + pass class Rs274xContext(GerberContext): @@ -59,6 +78,8 @@ class Rs274xContext(GerberContext): self._next_dcode = 10 self._rects = {} self._circles = {} + self._obrounds = {} + self._polygons = {} self._macros = {} self._i_none = 0 @@ -67,9 +88,10 @@ class Rs274xContext(GerberContext): self.settings = settings self._start_header(settings) - self._define_dcodes() + #self._define_dcodes() def _start_header(self, settings): + self.header.append(FSParamStmt.from_settings(settings)) self.header.append(MOParamStmt.from_units(settings.units)) def _define_dcodes(self): @@ -151,8 +173,12 @@ class Rs274xContext(GerberContext): # We already set the function, so the next command doesn't require that func = None - self.body.append(CoordStmt.line(func, self._simplify_point(line.end))) - self._pos = line.end + point = self._simplify_point(line.end) + + # In some files, we see a lot of duplicated ponts, so omit those + if point[0] != None or point[1] != None: + self.body.append(CoordStmt.line(func, self._simplify_point(line.end))) + self._pos = line.end def _render_arc(self, arc, color): @@ -269,10 +295,33 @@ class Rs274xContext(GerberContext): aper = self._get_rectangle(rectangle.width, rectangle.height) self._render_flash(rectangle, aper) + def _get_obround(self, width, height, dcode = None): + + key = (width, height) + aper = self._obrounds.get(key, None) + + if not aper: + if not dcode: + dcode = self._next_dcode + self._next_dcode += 1 + else: + self._next_dcode = max(dcode + 1, self._next_dcode) + + aper = ADParamStmt.obround(dcode, width, height) + self._obrounds[(width, height)] = aper + self.header.append(aper) + + return aper + def _render_obround(self, obround, color): + + aper = self._get_obround(obround.width, obround.height) + self._render_flash(obround, aper) + pass def _render_polygon(self, polygon, color): + raise NotImplementedError('Not implemented yet') pass def _render_drill(self, circle, color): @@ -285,8 +334,19 @@ class Rs274xContext(GerberContext): for primitive in amgroup.primitives: hash += primitive.__class__.__name__[0] + + bbox = primitive.bounding_box + hash += str((bbox[0][1] - bbox[0][0]) * 100000)[0:2] + hash += str((bbox[1][1] - bbox[1][0]) * 100000)[0:2] + if hasattr(primitive, 'primitives'): hash += str(len(primitive.primitives)) + + if isinstance(primitive, Rectangle): + hash += str(primitive.width * 1000000)[0:2] + hash += str(primitive.height * 1000000)[0:2] + elif isinstance(primitive, Circle): + hash += str(primitive.diameter * 1000000)[0:2] return hash @@ -331,9 +391,7 @@ class Rs274xContext(GerberContext): aper = self._get_amacro(amgroup) self._render_flash(amgroup, aper) - - - + def _render_inverted_layer(self): pass -- cgit From 7b88509c4acb4edbbe1a39762758bf28efecfc7f Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 5 Mar 2016 09:24:54 +0800 Subject: Make writer resilient to similar macro defs --- gerber/render/rs274x_backend.py | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 2a0420e..d4456e2 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -355,8 +355,19 @@ class Rs274xContext(GerberContext): # but in most cases, this should work hash = self._hash_amacro(amgroup) - macro = self._macros.get(hash, None) + macro = None + macroinfo = self._macros.get(hash, None) + if macroinfo: + + # We hae a definition, but check that the groups actually are the same + for macro in macroinfo: + offset = (amgroup.position[0] - macro[1].position[0], amgroup.position[1] - macro[1].position[1]) + if amgroup.equivalent(macro[1], offset): + break + macro = None + + # Did we find one in the group0 if not macro: # This is a new macro, so define it if not dcode: @@ -377,13 +388,11 @@ class Rs274xContext(GerberContext): # Store the dcode and the original so we can check if it really is the same macro = (aperdef, amgroup) - self._macros[hash] = macro - - else: - # We hae a definition, but check that the groups actually are the same - offset = (amgroup.position[0] - macro[1].position[0], amgroup.position[1] - macro[1].position[1]) - if not amgroup.equivalent(macro[1], offset): - raise ValueError('Two AMGroup have the same hash but are not equivalent') + + if macroinfo: + macroinfo.append(macro) + else: + self._macros[hash] = [macro] return macro[0] -- cgit From 7f47aea332ee1df45c87baa304d95ed03cc59865 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 5 Mar 2016 10:04:58 +0800 Subject: Write polygons to macros --- gerber/render/rs274x_backend.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index d4456e2..04ecbe6 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -2,7 +2,7 @@ from .render import GerberContext from ..am_statements import * from ..gerber_statements import * -from ..primitives import AMGroup, Arc, Circle, Line, Outline, Rectangle +from ..primitives import AMGroup, Arc, Circle, Line, Outline, Polygon, Rectangle from copy import deepcopy class AMGroupContext(object): @@ -28,6 +28,8 @@ class AMGroupContext(object): self._render_rectangle(primitive) elif isinstance(primitive, Line): self._render_line(primitive) + elif isinstance(primitive, Polygon): + self._render_polygon(primitive) else: raise ValueError('amgroup') @@ -53,6 +55,9 @@ class AMGroupContext(object): def _render_outline(self, outline): self.statements.append(AMOutlinePrimitive.from_primitive(outline)) + + def _render_polygon(self, polygon): + self.statements.append(AMPolygonPrimitive.from_primitive(polygon)) def _render_thermal(self, thermal): pass -- cgit From 97355475686dd4bdad1b0bd9a307843ea3c234f2 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 5 Mar 2016 10:28:38 +0800 Subject: Make rendering more robust for bad gerber files --- gerber/render/rs274x_backend.py | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 04ecbe6..5a15fe5 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -2,7 +2,7 @@ from .render import GerberContext from ..am_statements import * from ..gerber_statements import * -from ..primitives import AMGroup, Arc, Circle, Line, Outline, Polygon, Rectangle +from ..primitives import AMGroup, Arc, Circle, Line, Obround, Outline, Polygon, Rectangle from copy import deepcopy class AMGroupContext(object): @@ -152,6 +152,10 @@ class Rs274xContext(GerberContext): aper = self._get_circle(aperture.diameter) elif isinstance(aperture, Rectangle): aper = self._get_rectangle(aperture.width, aperture.height) + elif isinstance(aperture, Obround): + aper = self._get_obround(aperture.width, aperture.height) + elif isinstance(aperture, AMGroup): + aper = self._get_amacro(aperture) else: raise NotImplementedError('Line with invalid aperture type') @@ -367,7 +371,15 @@ class Rs274xContext(GerberContext): # We hae a definition, but check that the groups actually are the same for macro in macroinfo: - offset = (amgroup.position[0] - macro[1].position[0], amgroup.position[1] - macro[1].position[1]) + + # Macros should have positions, right? But if the macro is selected for non-flashes + # then it won't have a position. This is of course a bad gerber, but they do exist + if amgroup.position: + position = amgroup.position + else: + position = (0, 0) + + offset = (position[0] - macro[1].position[0], position[1] - macro[1].position[1]) if amgroup.equivalent(macro[1], offset): break macro = None -- cgit From 0f1d1c3a29017ea82e1f0f7795798405ef346706 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 5 Mar 2016 14:56:08 +0800 Subject: Remove some testing code from gerber writer. More implementation for excellon writer - not working yet --- gerber/render/excellon_backend.py | 76 +++++++++++++++++++++++++++++++++++++++ gerber/render/rs274x_backend.py | 32 +++-------------- 2 files changed, 80 insertions(+), 28 deletions(-) create mode 100644 gerber/render/excellon_backend.py (limited to 'gerber/render') diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py new file mode 100644 index 0000000..bec8367 --- /dev/null +++ b/gerber/render/excellon_backend.py @@ -0,0 +1,76 @@ + +from .render import GerberContext +from ..excellon_statements import * + +class ExcellonContext(GerberContext): + + def __init__(self, settings): + GerberContext.__init__(self) + self.comments = [] + self.header = [] + self.tool_def = [] + self.body = [] + self.end = [EndOfProgramStmt()] + + self.handled_tools = set() + self.cur_tool = None + self.pos = (None, None) + + self.settings = settings + + self._start_header(settings) + + def _start_header(self, settings): + pass + + @property + def statements(self): + return self.comments + self.header + self.body + self.end + + def set_bounds(self, bounds): + pass + + def _paint_background(self): + pass + + def _render_line(self, line, color): + raise ValueError('Invalid Excellon object') + def _render_arc(self, arc, color): + raise ValueError('Invalid Excellon object') + + def _render_region(self, region, color): + raise ValueError('Invalid Excellon object') + + def _render_level_polarity(self, region): + raise ValueError('Invalid Excellon object') + + def _render_circle(self, circle, color): + raise ValueError('Invalid Excellon object') + + def _render_rectangle(self, rectangle, color): + raise ValueError('Invalid Excellon object') + + def _render_obround(self, obround, color): + raise ValueError('Invalid Excellon object') + + def _render_polygon(self, polygon, color): + raise ValueError('Invalid Excellon object') + + def _simplify_point(self, point): + return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None) + + def _render_drill(self, drill, color): + + if not drill in self.handled_tools: + self.tool_def.append(drill.tool) + + if drill.tool != self.cur_tool: + self.body.append(ToolSelectionStmt(drill.tool.number)) + + point = self._simplify_point(drill.position) + self._pos = drill.position + self.body.append(CoordinateStmt.from_point()) + + def _render_inverted_layer(self): + pass + \ No newline at end of file diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 5a15fe5..81e86f2 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -93,30 +93,11 @@ class Rs274xContext(GerberContext): self.settings = settings self._start_header(settings) - #self._define_dcodes() def _start_header(self, settings): self.header.append(FSParamStmt.from_settings(settings)) self.header.append(MOParamStmt.from_units(settings.units)) - def _define_dcodes(self): - - self._get_circle(.1575, 10) - self._get_circle(.035, 17) - self._get_rectangle(0.1575, 0.1181, 15) - self._get_rectangle(0.0492, 0.0118, 16) - self._get_circle(.0197, 11) - self._get_rectangle(0.0236, 0.0591, 12) - self._get_circle(.005, 18) - self._get_circle(.008, 19) - self._get_circle(.009, 20) - self._get_circle(.01, 21) - self._get_circle(.02, 22) - self._get_circle(.006, 23) - self._get_circle(.015, 24) - self._get_rectangle(0.1678, 0.1284, 26) - self._get_rectangle(0.0338, 0.0694, 25) - def _simplify_point(self, point): return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None) @@ -330,11 +311,10 @@ class Rs274xContext(GerberContext): pass def _render_polygon(self, polygon, color): - raise NotImplementedError('Not implemented yet') - pass + raise ValueError('Polygons can only exist in the context of aperture macro') - def _render_drill(self, circle, color): - pass + def _render_drill(self, drill, color): + raise ValueError('Drills are not valid in RS274X files') def _hash_amacro(self, amgroup): '''Calculate a very quick hash code for deciding if we should even check AM groups for comparision''' @@ -420,8 +400,4 @@ class Rs274xContext(GerberContext): def _render_inverted_layer(self): pass - - def post_render_primitives(self): - '''No more primitives, so set the end marker''' - - self.body.append() \ No newline at end of file + \ No newline at end of file -- cgit From 97924d188bf8fcc7d7537007464e65cbdc8c7bbb Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 5 Mar 2016 16:26:30 +0800 Subject: More robust writing, even for bad files. Remove accidentally added imports --- gerber/render/rs274x_backend.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 81e86f2..48a55e7 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -384,6 +384,9 @@ class Rs274xContext(GerberContext): self.header.append(aperdef) # Store the dcode and the original so we can check if it really is the same + # If it didn't have a postition, set it to 0, 0 + if amgroup.position == None: + amgroup.position = (0, 0) macro = (aperdef, amgroup) if macroinfo: -- cgit From d12f6385a434c02677bfbb7b075dd9d8e49627fe Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Thu, 24 Mar 2016 00:10:34 +0800 Subject: Basic rendering of excellon works, but still has issues --- gerber/render/excellon_backend.py | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py index bec8367..f5cec1a 100644 --- a/gerber/render/excellon_backend.py +++ b/gerber/render/excellon_backend.py @@ -10,11 +10,12 @@ class ExcellonContext(GerberContext): self.header = [] self.tool_def = [] self.body = [] + self.start = [HeaderBeginStmt()] self.end = [EndOfProgramStmt()] self.handled_tools = set() self.cur_tool = None - self.pos = (None, None) + self._pos = (None, None) self.settings = settings @@ -25,7 +26,7 @@ class ExcellonContext(GerberContext): @property def statements(self): - return self.comments + self.header + self.body + self.end + return self.start + self.comments + self.header + self.body + self.end def set_bounds(self, bounds): pass @@ -61,15 +62,17 @@ class ExcellonContext(GerberContext): def _render_drill(self, drill, color): - if not drill in self.handled_tools: - self.tool_def.append(drill.tool) + tool = drill.hit.tool + if not tool in self.handled_tools: + self.handled_tools.add(tool) + self.header.append(ExcellonTool.from_tool(tool)) - if drill.tool != self.cur_tool: - self.body.append(ToolSelectionStmt(drill.tool.number)) + if tool != self.cur_tool: + self.body.append(ToolSelectionStmt(tool.number)) point = self._simplify_point(drill.position) self._pos = drill.position - self.body.append(CoordinateStmt.from_point()) + self.body.append(CoordinateStmt.from_point(point)) def _render_inverted_layer(self): pass -- cgit From acde19f205898188c03a46e5d8a7a6a4d4637a2d Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 26 Mar 2016 15:59:42 +0800 Subject: Support for the G85 slot statement --- gerber/render/cairo_backend.py | 14 ++++++++++++++ gerber/render/excellon_backend.py | 33 +++++++++++++++++++++++++++++---- gerber/render/render.py | 5 +++++ 3 files changed, 48 insertions(+), 4 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 7be7e6a..d895e5c 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -173,6 +173,20 @@ class GerberCairoContext(GerberContext): def _render_drill(self, circle, color): self._render_circle(circle, color) + def _render_slot(self, slot, color): + start = map(mul, slot.start, self.scale) + end = map(mul, slot.end, self.scale) + + width = slot.diameter + + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if (slot.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(width * self.scale[0]) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) + self.ctx.line_to(*end) + self.ctx.stroke() + def _render_amgroup(self, amgroup, color): for primitive in amgroup.primitives: self.render(primitive) diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py index f5cec1a..eb79f1b 100644 --- a/gerber/render/excellon_backend.py +++ b/gerber/render/excellon_backend.py @@ -9,6 +9,7 @@ class ExcellonContext(GerberContext): self.comments = [] self.header = [] self.tool_def = [] + self.body_start = [RewindStopStmt()] self.body = [] self.start = [HeaderBeginStmt()] self.end = [EndOfProgramStmt()] @@ -19,14 +20,22 @@ class ExcellonContext(GerberContext): self.settings = settings - self._start_header(settings) + self._start_header() + self._start_comments() - def _start_header(self, settings): - pass + def _start_header(self): + """Create the header from the settings""" + + self.header.append(UnitStmt.from_settings(self.settings)) + + def _start_comments(self): + + # Write the digits used - this isn't valid Excellon statement, so we write as a comment + self.comments.append(CommentStmt('FILE_FORMAT=%d:%d' % (self.settings.format[0], self.settings.format[1]))) @property def statements(self): - return self.start + self.comments + self.header + self.body + self.end + return self.start + self.comments + self.header + self.body_start + self.body + self.end def set_bounds(self, bounds): pass @@ -69,10 +78,26 @@ class ExcellonContext(GerberContext): if tool != self.cur_tool: self.body.append(ToolSelectionStmt(tool.number)) + self.cur_tool = tool point = self._simplify_point(drill.position) self._pos = drill.position self.body.append(CoordinateStmt.from_point(point)) + + def _render_slot(self, slot, color): + + tool = slot.hit.tool + if not tool in self.handled_tools: + self.handled_tools.add(tool) + self.header.append(ExcellonTool.from_tool(tool)) + + if tool != self.cur_tool: + self.body.append(ToolSelectionStmt(tool.number)) + self.cur_tool = tool + + # Slots don't use simplified points + self._pos = slot.end + self.body.append(SlotStmt.from_points(slot.start, slot.end)) def _render_inverted_layer(self): pass diff --git a/gerber/render/render.py b/gerber/render/render.py index b518385..a5ae38e 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -150,6 +150,8 @@ class GerberContext(object): self._render_polygon(primitive, color) elif isinstance(primitive, Drill): self._render_drill(primitive, self.drill_color) + elif isinstance(primitive, Slot): + self._render_slot(primitive, self.drill_color) elif isinstance(primitive, AMGroup): self._render_amgroup(primitive, color) elif isinstance(primitive, Outline): @@ -183,6 +185,9 @@ class GerberContext(object): def _render_drill(self, primitive, color): pass + def _render_slot(self, primitive, color): + pass + def _render_amgroup(self, primitive, color): pass -- cgit From 288f49955ecc1a811752aa4b1e713f9954e3033b Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 27 Mar 2016 14:24:11 +0800 Subject: Actually fix the rout rendering to be correct --- gerber/render/excellon_backend.py | 98 +++++++++++++++++++++++++++++++++++---- 1 file changed, 89 insertions(+), 9 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py index eb79f1b..b2c213f 100644 --- a/gerber/render/excellon_backend.py +++ b/gerber/render/excellon_backend.py @@ -1,21 +1,29 @@ from .render import GerberContext +from ..excellon import DrillSlot from ..excellon_statements import * class ExcellonContext(GerberContext): + MODE_DRILL = 1 + MODE_SLOT =2 + def __init__(self, settings): GerberContext.__init__(self) + + # Statements that we write self.comments = [] self.header = [] self.tool_def = [] self.body_start = [RewindStopStmt()] self.body = [] self.start = [HeaderBeginStmt()] - self.end = [EndOfProgramStmt()] + # Current tool and position self.handled_tools = set() self.cur_tool = None + self.drill_mode = ExcellonContext.MODE_DRILL + self.drill_down = False self._pos = (None, None) self.settings = settings @@ -33,9 +41,22 @@ class ExcellonContext(GerberContext): # Write the digits used - this isn't valid Excellon statement, so we write as a comment self.comments.append(CommentStmt('FILE_FORMAT=%d:%d' % (self.settings.format[0], self.settings.format[1]))) + def _get_end(self): + """How we end depends on our mode""" + + end = [] + + if self.drill_down: + end.append(RetractWithClampingStmt()) + end.append(RetractWithoutClampingStmt()) + + end.append(EndOfProgramStmt()) + + return end + @property def statements(self): - return self.start + self.comments + self.header + self.body_start + self.body + self.end + return self.start + self.comments + self.header + self.body_start + self.body + self._get_end() def set_bounds(self, bounds): pass @@ -71,6 +92,9 @@ class ExcellonContext(GerberContext): def _render_drill(self, drill, color): + if self.drill_mode != ExcellonContext.MODE_DRILL: + self._start_drill_mode() + tool = drill.hit.tool if not tool in self.handled_tools: self.handled_tools.add(tool) @@ -84,20 +108,76 @@ class ExcellonContext(GerberContext): self._pos = drill.position self.body.append(CoordinateStmt.from_point(point)) + def _start_drill_mode(self): + """ + If we are not in drill mode, then end the ROUT so we can do basic drilling + """ + + if self.drill_mode == ExcellonContext.MODE_SLOT: + + # Make sure we are retracted before changing modes + last_cmd = self.body[-1] + if self.drill_down: + self.body.append(RetractWithClampingStmt()) + self.body.append(RetractWithoutClampingStmt()) + self.drill_down = False + + # Switch to drill mode + self.body.append(DrillModeStmt()) + self.drill_mode = ExcellonContext.MODE_DRILL + + else: + raise ValueError('Should be in slot mode') + def _render_slot(self, slot, color): + # Set the tool first, before we might go into drill mode tool = slot.hit.tool if not tool in self.handled_tools: self.handled_tools.add(tool) self.header.append(ExcellonTool.from_tool(tool)) - - if tool != self.cur_tool: - self.body.append(ToolSelectionStmt(tool.number)) - self.cur_tool = tool - # Slots don't use simplified points - self._pos = slot.end - self.body.append(SlotStmt.from_points(slot.start, slot.end)) + if tool != self.cur_tool: + self.body.append(ToolSelectionStmt(tool.number)) + self.cur_tool = tool + + # Two types of drilling - normal drill and slots + if slot.hit.slot_type == DrillSlot.TYPE_ROUT: + + # For ROUT, setting the mode is part of the actual command. + + # Are we in the right position? + if slot.start != self._pos: + if self.drill_down: + # We need to move into the right position, so retract + self.body.append(RetractWithClampingStmt()) + self.drill_down = False + + # Move to the right spot + point = self._simplify_point(slot.start) + self._pos = slot.start + self.body.append(CoordinateStmt.from_point(point, mode="ROUT")) + + # Now we are in the right spot, so drill down + if not self.drill_down: + self.body.append(ZAxisRoutPositionStmt()) + self.drill_down = True + + # Do a linear move from our current position to the end position + point = self._simplify_point(slot.end) + self._pos = slot.end + self.body.append(CoordinateStmt.from_point(point, mode="LINEAR")) + + self.drill_down = ExcellonContext.MODE_SLOT + + else: + # This is a G85 slot, so do this in normally drilling mode + if self.drill_mode != ExcellonContext.MODE_DRILL: + self._start_drill_mode() + + # Slots don't use simplified points + self._pos = slot.end + self.body.append(SlotStmt.from_points(slot.start, slot.end)) def _render_inverted_layer(self): pass -- cgit From 2eac1e427ca3264cb6dc36e0712020c1ca73fa9c Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Tue, 5 Apr 2016 22:40:12 +0800 Subject: Fix converting values for excellon files. Give error for incremental mode --- gerber/render/excellon_backend.py | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py index b2c213f..c477036 100644 --- a/gerber/render/excellon_backend.py +++ b/gerber/render/excellon_backend.py @@ -36,6 +36,11 @@ class ExcellonContext(GerberContext): self.header.append(UnitStmt.from_settings(self.settings)) + if self.settings.notation == 'incremental': + raise NotImplementedError('Incremental mode is not implemented') + else: + self.body.append(AbsoluteModeStmt()) + def _start_comments(self): # Write the digits used - this isn't valid Excellon statement, so we write as a comment -- cgit From 199a0f3d3c5d4dbbc4ac6e8d1b4548523e44f00f Mon Sep 17 00:00:00 2001 From: Qau Lau Date: Fri, 8 Apr 2016 20:02:04 +0800 Subject: Update cairo_backend.py If cairo module import error use cairocffi --- gerber/render/cairo_backend.py | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index d895e5c..1d168ca 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -17,7 +17,10 @@ from .render import GerberContext -import cairo +try: + import cairo +except ImportError: + import cairocffi as cairo from operator import mul import math @@ -233,4 +236,4 @@ class GerberCairoContext(GerberContext): self.surface.finish() self.surface_buffer.flush() return self.surface_buffer.read() - \ No newline at end of file + -- cgit From 7fda8eb9f52b7be9cdf95807c036e3e1cfce3e7c Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 8 May 2016 22:13:08 +0800 Subject: Don't render null items --- gerber/render/render.py | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/render.py b/gerber/render/render.py index a5ae38e..41b632c 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -132,6 +132,8 @@ class GerberContext(object): self._invert = invert def render(self, primitive): + if not primitive: + return color = (self.color if primitive.level_polarity == 'dark' else self.background_color) if isinstance(primitive, Line): -- cgit From 74c638c7181e7a8ca4d0f791545bbf5db8b86c2a Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Thu, 19 May 2016 23:19:28 +0800 Subject: Fix issue where did not always switch into the G01 mode after G03 when the point was unchanged --- gerber/render/rs274x_backend.py | 2 ++ 1 file changed, 2 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 48a55e7..3dc8c1a 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -169,6 +169,8 @@ class Rs274xContext(GerberContext): if point[0] != None or point[1] != None: self.body.append(CoordStmt.line(func, self._simplify_point(line.end))) self._pos = line.end + elif func: + self.body.append(CoordStmt.mode(func)) def _render_arc(self, arc, color): -- cgit From c9c1313d598d5afa8cb387a2cfcd4a4281086e01 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 28 May 2016 12:36:31 +0800 Subject: Fix units statement. Keep track of original macro statement in the AMGroup --- gerber/render/rs274x_backend.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 3dc8c1a..43695c3 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -14,7 +14,7 @@ class AMGroupContext(object): def render(self, amgroup, name): # Clone ourselves, then offset by the psotion so that - # our render doesn't have to consider offset. Just makes things simplder + # our render doesn't have to consider offset. Just makes things simpler nooffset_group = deepcopy(amgroup) nooffset_group.position = (0, 0) -- cgit From 3fc296918e7d0d343840c5daa08eb6d564660a29 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 28 May 2016 13:06:08 +0800 Subject: Use the known macro statement to render. Fix thermal not setting rotation --- gerber/render/rs274x_backend.py | 54 ++++++++++++++++++++++++----------------- 1 file changed, 32 insertions(+), 22 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 43695c3..2ca7014 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -13,28 +13,38 @@ class AMGroupContext(object): def render(self, amgroup, name): - # Clone ourselves, then offset by the psotion so that - # our render doesn't have to consider offset. Just makes things simpler - nooffset_group = deepcopy(amgroup) - nooffset_group.position = (0, 0) - - # Now draw the shapes - for primitive in nooffset_group.primitives: - if isinstance(primitive, Outline): - self._render_outline(primitive) - elif isinstance(primitive, Circle): - self._render_circle(primitive) - elif isinstance(primitive, Rectangle): - self._render_rectangle(primitive) - elif isinstance(primitive, Line): - self._render_line(primitive) - elif isinstance(primitive, Polygon): - self._render_polygon(primitive) - else: - raise ValueError('amgroup') - - statement = AMParamStmt('AM', name, self._statements_to_string()) - return statement + if amgroup.stmt: + # We know the statement it was generated from, so use that to create the AMParamStmt + # It will give a much better result + + stmt = deepcopy(amgroup.stmt) + stmt.name = name + + return stmt + + else: + # Clone ourselves, then offset by the psotion so that + # our render doesn't have to consider offset. Just makes things simpler + nooffset_group = deepcopy(amgroup) + nooffset_group.position = (0, 0) + + # Now draw the shapes + for primitive in nooffset_group.primitives: + if isinstance(primitive, Outline): + self._render_outline(primitive) + elif isinstance(primitive, Circle): + self._render_circle(primitive) + elif isinstance(primitive, Rectangle): + self._render_rectangle(primitive) + elif isinstance(primitive, Line): + self._render_line(primitive) + elif isinstance(primitive, Polygon): + self._render_polygon(primitive) + else: + raise ValueError('amgroup') + + statement = AMParamStmt('AM', name, self._statements_to_string()) + return statement def _statements_to_string(self): macro = '' -- cgit From ea97d9d0376db6ff7afcc7669eec84a228f8d201 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 28 May 2016 17:03:40 +0800 Subject: Fix issue with switching between ROUT and normal drill modes --- gerber/render/excellon_backend.py | 10 +++++----- gerber/render/rs274x_backend.py | 13 +++++++++++-- 2 files changed, 16 insertions(+), 7 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/excellon_backend.py b/gerber/render/excellon_backend.py index c477036..da5b22b 100644 --- a/gerber/render/excellon_backend.py +++ b/gerber/render/excellon_backend.py @@ -142,9 +142,9 @@ class ExcellonContext(GerberContext): self.handled_tools.add(tool) self.header.append(ExcellonTool.from_tool(tool)) - if tool != self.cur_tool: - self.body.append(ToolSelectionStmt(tool.number)) - self.cur_tool = tool + if tool != self.cur_tool: + self.body.append(ToolSelectionStmt(tool.number)) + self.cur_tool = tool # Two types of drilling - normal drill and slots if slot.hit.slot_type == DrillSlot.TYPE_ROUT: @@ -172,8 +172,8 @@ class ExcellonContext(GerberContext): point = self._simplify_point(slot.end) self._pos = slot.end self.body.append(CoordinateStmt.from_point(point, mode="LINEAR")) - - self.drill_down = ExcellonContext.MODE_SLOT + + self.drill_mode = ExcellonContext.MODE_SLOT else: # This is a G85 slot, so do this in normally drilling mode diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 2ca7014..bb784b1 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -331,7 +331,11 @@ class Rs274xContext(GerberContext): def _hash_amacro(self, amgroup): '''Calculate a very quick hash code for deciding if we should even check AM groups for comparision''' - hash = '' + # We always start with an X because this forms part of the name + # Basically, in some cases, the name might start with a C, R, etc. That can appear + # to conflict with normal aperture definitions. Technically, it shouldn't because normal + # aperture definitions should have a comma, but in some cases the commit is omitted + hash = 'X' for primitive in amgroup.primitives: hash += primitive.__class__.__name__[0] @@ -348,6 +352,11 @@ class Rs274xContext(GerberContext): hash += str(primitive.height * 1000000)[0:2] elif isinstance(primitive, Circle): hash += str(primitive.diameter * 1000000)[0:2] + + if len(hash) > 20: + # The hash might actually get quite complex, so stop before + # it gets too long + break return hash @@ -361,7 +370,7 @@ class Rs274xContext(GerberContext): if macroinfo: - # We hae a definition, but check that the groups actually are the same + # We have a definition, but check that the groups actually are the same for macro in macroinfo: # Macros should have positions, right? But if the macro is selected for non-flashes -- cgit From b01c4822b6da6b7be37becb73c58f60621f6366f Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 25 Jun 2016 12:27:28 +0800 Subject: Render aperture macros with clear regions --- gerber/render/cairo_backend.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 1d168ca..c1bd60c 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -191,8 +191,11 @@ class GerberCairoContext(GerberContext): self.ctx.stroke() def _render_amgroup(self, amgroup, color): + self.ctx.push_group() for primitive in amgroup.primitives: self.render(primitive) + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) def _render_test_record(self, primitive, color): self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL) -- cgit From ccb6eb7a766bd6edf314978f3ec4fc0dcd61652d Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 25 Jun 2016 16:46:44 +0800 Subject: Add support for polygon apertures --- gerber/render/cairo_backend.py | 15 +++++++++++++++ gerber/render/rs274x_backend.py | 26 ++++++++++++++++++++++---- 2 files changed, 37 insertions(+), 4 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index c1bd60c..2b7c2ff 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -159,6 +159,9 @@ class GerberCairoContext(GerberContext): self._render_rectangle(obround.subshapes['rectangle'], color) def _render_polygon(self, polygon, color): + if polygon.hole_radius > 0: + self.ctx.push_group() + vertices = polygon.vertices self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) @@ -172,6 +175,18 @@ class GerberCairoContext(GerberContext): self.ctx.line_to(*map(mul, v, self.scale)) self.ctx.fill() + + if polygon.hole_radius > 0: + # Render the center clear + center = tuple(map(mul, polygon.position, self.scale)) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi) + self.ctx.fill() + + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) def _render_drill(self, circle, color): self._render_circle(circle, color) diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index bb784b1..c37529e 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -310,7 +310,7 @@ class Rs274xContext(GerberContext): self._next_dcode = max(dcode + 1, self._next_dcode) aper = ADParamStmt.obround(dcode, width, height) - self._obrounds[(width, height)] = aper + self._obrounds[key] = aper self.header.append(aper) return aper @@ -320,10 +320,28 @@ class Rs274xContext(GerberContext): aper = self._get_obround(obround.width, obround.height) self._render_flash(obround, aper) - pass - def _render_polygon(self, polygon, color): - raise ValueError('Polygons can only exist in the context of aperture macro') + + aper = self._get_polygon(polygon.radius, polygon.sides, polygon.rotation, polygon.hole_radius) + self._render_flash(polygon, aper) + + def _get_polygon(self, radius, num_vertices, rotation, hole_radius, dcode = None): + + key = (radius, num_vertices, rotation, hole_radius) + aper = self._polygons.get(key, None) + + if not aper: + if not dcode: + dcode = self._next_dcode + self._next_dcode += 1 + else: + self._next_dcode = max(dcode + 1, self._next_dcode) + + aper = ADParamStmt.polygon(dcode, radius * 2, num_vertices, rotation, hole_radius * 2) + self._polygons[key] = aper + self.header.append(aper) + + return aper def _render_drill(self, drill, color): raise ValueError('Drills are not valid in RS274X files') -- cgit From 9b0d3b1122ffc3b7c2211b0cdc2cb6de6be9b242 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 10 Jul 2016 15:07:17 +0800 Subject: Fix issue with chaning region mode via flash. Add options for controlling output from rendered gerber --- gerber/render/render.py | 21 +++++++++++++++++++-- gerber/render/rs274x_backend.py | 27 ++++++++++++++++++++++++++- 2 files changed, 45 insertions(+), 3 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/render.py b/gerber/render/render.py index 41b632c..128496f 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -136,6 +136,9 @@ class GerberContext(object): return color = (self.color if primitive.level_polarity == 'dark' else self.background_color) + + self._pre_render_primitive(primitive) + if isinstance(primitive, Line): self._render_line(primitive, color) elif isinstance(primitive, Arc): @@ -160,8 +163,22 @@ class GerberContext(object): self._render_region(primitive, color) elif isinstance(primitive, TestRecord): self._render_test_record(primitive, color) - else: - return + + self._post_render_primitive(primitive) + + def _pre_render_primitive(self, primitive): + """ + Called before rendering a primitive. Use the callback to perform some action before rendering + a primitive, for example adding a comment. + """ + return + + def _post_render_primitive(self, primitive): + """ + Called after rendering a primitive. Use the callback to perform some action after rendering + a primitive + """ + return def _render_line(self, primitive, color): pass diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index c37529e..972edcb 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -90,6 +90,17 @@ class Rs274xContext(GerberContext): self._quadrant_mode = None self._dcode = None + # Primarily for testing and comarison to files, should we write + # flashes as a single statement or a move plus flash? Set to true + # to do in a single statement. Normally this can be false + self.condensed_flash = True + + # When closing a region, force a D02 staement to close a region. + # This is normally not necessary because regions are closed with a G37 + # staement, but this will add an extra statement for doubly close + # the region + self.explicit_region_move_end = False + self._next_dcode = 10 self._rects = {} self._circles = {} @@ -153,6 +164,11 @@ class Rs274xContext(GerberContext): if aper.d != self._dcode: self.body.append(ApertureStmt(aper.d)) self._dcode = aper.d + + def _pre_render_primitive(self, primitive): + + if hasattr(primitive, 'comment'): + self.body.append(CommentStmt(primitive.comment)) def _render_line(self, line, color): @@ -233,6 +249,8 @@ class Rs274xContext(GerberContext): else: self._render_arc(p, color) + if self.explicit_region_move_end: + self.body.append(CoordStmt.move(None, None)) self.body.append(RegionModeStmt.off()) @@ -243,11 +261,18 @@ class Rs274xContext(GerberContext): def _render_flash(self, primitive, aperture): + self._render_level_polarity(primitive) + if aperture.d != self._dcode: self.body.append(ApertureStmt(aperture.d)) self._dcode = aperture.d - self.body.append(CoordStmt.flash( self._simplify_point(primitive.position))) + if self.condensed_flash: + self.body.append(CoordStmt.flash(self._simplify_point(primitive.position))) + else: + self.body.append(CoordStmt.move(None, self._simplify_point(primitive.position))) + self.body.append(CoordStmt.flash(None)) + self._pos = primitive.position def _get_circle(self, diameter, dcode = None): -- cgit From f0585baefa54c5cd891ba04c81053956b1a59977 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 17 Jul 2016 13:14:54 +0800 Subject: Create first test that renders and validates the the rendered PNG is correct. --- gerber/render/cairo_backend.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 5a3c7a1..3c4a395 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -292,8 +292,7 @@ class GerberCairoContext(GerberContext): self.ctx.paint() def dump(self, filename): - is_svg = filename.lower().endswith(".svg") - if is_svg: + if filename and filename.lower().endswith(".svg"): self.surface.finish() self.surface_buffer.flush() with open(filename, "w") as f: @@ -301,7 +300,7 @@ class GerberCairoContext(GerberContext): f.write(self.surface_buffer.read()) f.flush() else: - self.surface.write_to_png(filename) + return self.surface.write_to_png(filename) def dump_svg_str(self): self.surface.finish() -- cgit From 7cd6acf12670f3773113f67ed2acb35cb21c32a0 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 24 Jul 2016 17:08:47 +0800 Subject: Add many render tests based on the Umaco gerger specification. Fix multiple rendering bugs, especially related to holes in flashed apertures --- gerber/render/cairo_backend.py | 105 ++++++++++++++++++++++++++++++++-------- gerber/render/rs274x_backend.py | 12 ++--- 2 files changed, 90 insertions(+), 27 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 0cb230b..78ccf34 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -20,13 +20,14 @@ try: except ImportError: import cairocffi as cairo -from operator import mul, div import math +from operator import mul, div import tempfile +from ..primitives import * from .render import GerberContext, RenderSettings from .theme import THEMES -from ..primitives import * + try: from cStringIO import StringIO @@ -219,15 +220,30 @@ class GerberCairoContext(GerberContext): center = tuple(map(mul, circle.position, self.scale)) if not self.invert: ctx = self.ctx - ctx.set_source_rgba(*color, alpha=self.alpha) + ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: ctx = self.mask_ctx ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) ctx.set_operator(cairo.OPERATOR_CLEAR) + + if circle.hole_diameter > 0: + ctx.push_group() + ctx.set_line_width(0) ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) - ctx.fill() + ctx.fill() + + if circle.hole_diameter > 0: + # Render the center clear + + ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + ctx.fill() + + ctx.pop_group_to_source() + ctx.paint_with_alpha(1) def _render_rectangle(self, rectangle, color): ll = map(mul, rectangle.lower_left, self.scale) @@ -253,48 +269,95 @@ class GerberCairoContext(GerberContext): ll[1] = ll[1] - center[1] matrix.rotate(rectangle.rotation) ctx.transform(matrix) - + + if rectangle.hole_diameter > 0: + ctx.push_group() + ctx.set_line_width(0) ctx.rectangle(ll[0], ll[1], width, height) ctx.fill() + if rectangle.hole_diameter > 0: + # Render the center clear + ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + ctx.set_operator(cairo.OPERATOR_CLEAR) + center = map(mul, rectangle.position, self.scale) + ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + ctx.fill() + + ctx.pop_group_to_source() + ctx.paint_with_alpha(1) + if rectangle.rotation != 0: ctx.restore() def _render_obround(self, obround, color): + + if not self.invert: + ctx = self.ctx + ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + else: + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + + if obround.hole_diameter > 0: + ctx.push_group() + self._render_circle(obround.subshapes['circle1'], color) self._render_circle(obround.subshapes['circle2'], color) self._render_rectangle(obround.subshapes['rectangle'], color) + if obround.hole_diameter > 0: + # Render the center clear + ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + ctx.set_operator(cairo.OPERATOR_CLEAR) + center = map(mul, obround.position, self.scale) + ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + ctx.fill() + + ctx.pop_group_to_source() + ctx.paint_with_alpha(1) + def _render_polygon(self, polygon, color): + + # TODO Ths does not handle rotation of a polygon + if not self.invert: + ctx = self.ctx + ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + else: + ctx = self.mask_ctx + ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + ctx.set_operator(cairo.OPERATOR_CLEAR) + if polygon.hole_radius > 0: - self.ctx.push_group() + ctx.push_group() vertices = polygon.vertices - - self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if (polygon.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + + ctx.set_line_width(0) + ctx.set_line_cap(cairo.LINE_CAP_ROUND) # Start from before the end so it is easy to iterate and make sure it is closed - self.ctx.move_to(*map(mul, vertices[-1], self.scale)) + ctx.move_to(*map(mul, vertices[-1], self.scale)) for v in vertices: - self.ctx.line_to(*map(mul, v, self.scale)) + ctx.line_to(*map(mul, v, self.scale)) - self.ctx.fill() + ctx.fill() if polygon.hole_radius > 0: # Render the center clear center = tuple(map(mul, polygon.position, self.scale)) - self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - self.ctx.set_operator(cairo.OPERATOR_CLEAR) - self.ctx.set_line_width(0) - self.ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi) - self.ctx.fill() + ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + ctx.set_operator(cairo.OPERATOR_CLEAR) + ctx.set_line_width(0) + ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi) + ctx.fill() - self.ctx.pop_group_to_source() - self.ctx.paint_with_alpha(1) + ctx.pop_group_to_source() + ctx.paint_with_alpha(1) def _render_drill(self, circle, color): self._render_circle(circle, color) diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 972edcb..15e9154 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -151,7 +151,7 @@ class Rs274xContext(GerberContext): # Select the right aperture if not already selected if aperture: if isinstance(aperture, Circle): - aper = self._get_circle(aperture.diameter) + aper = self._get_circle(aperture.diameter, aperture.hole_diameter) elif isinstance(aperture, Rectangle): aper = self._get_rectangle(aperture.width, aperture.height) elif isinstance(aperture, Obround): @@ -275,10 +275,10 @@ class Rs274xContext(GerberContext): self._pos = primitive.position - def _get_circle(self, diameter, dcode = None): + def _get_circle(self, diameter, hole_diameter, dcode = None): '''Define a circlar aperture''' - aper = self._circles.get(diameter, None) + aper = self._circles.get((diameter, hole_diameter), None) if not aper: if not dcode: @@ -287,15 +287,15 @@ class Rs274xContext(GerberContext): else: self._next_dcode = max(dcode + 1, self._next_dcode) - aper = ADParamStmt.circle(dcode, diameter) - self._circles[diameter] = aper + aper = ADParamStmt.circle(dcode, diameter, hole_diameter) + self._circles[(diameter, hole_diameter)] = aper self.header.append(aper) return aper def _render_circle(self, circle, color): - aper = self._get_circle(circle.diameter) + aper = self._get_circle(circle.diameter, circle.hole_diameter) self._render_flash(circle, aper) def _get_rectangle(self, width, height, dcode = None): -- cgit From 965d3ce23b92f8aff1063debd6d3364de15791fe Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sun, 24 Jul 2016 22:08:31 +0800 Subject: Add more tests for rendering to PNG. Start adding tests for rendering to Gerber format. Changed definition of no hole to use None instead of 0 so we can differentiate when writing to Gerber format. Makde polygon use hole diameter instead of hole radius to match other primitives --- gerber/render/rs274x_backend.py | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 15e9154..5ab74f0 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -1,9 +1,17 @@ +"""Renders an in-memory Gerber file to statements which can be written to a string +""" +from copy import deepcopy +try: + from cStringIO import StringIO +except(ImportError): + from io import StringIO + from .render import GerberContext from ..am_statements import * from ..gerber_statements import * from ..primitives import AMGroup, Arc, Circle, Line, Obround, Outline, Polygon, Rectangle -from copy import deepcopy + class AMGroupContext(object): '''A special renderer to generate aperature macros from an AMGroup''' @@ -467,4 +475,13 @@ class Rs274xContext(GerberContext): def _render_inverted_layer(self): pass + + def dump(self): + """Write the rendered file to a StringIO steam""" + statements = map(lambda stmt: stmt.to_gerber(self.settings), self.statements) + stream = StringIO() + for statement in statements: + stream.write(statement + '\n') + + return stream \ No newline at end of file -- cgit From 8cd842a41a55ab3d8f558a2e3e198beba7da58a1 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Thu, 21 Jan 2016 03:57:44 -0500 Subject: Manually mere rendering changes --- gerber/render/cairo_backend.py | 395 +++++++++++++++++++++-------------------- gerber/render/render.py | 8 +- gerber/render/theme.py | 4 +- 3 files changed, 214 insertions(+), 193 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 78ccf34..349640a 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -12,7 +12,7 @@ # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and +# See the License for the specific language governing permissions and # limitations under the License. try: @@ -21,7 +21,8 @@ except ImportError: import cairocffi as cairo import math -from operator import mul, div +from operator import mul, di + import tempfile from ..primitives import * @@ -36,11 +37,14 @@ except(ImportError): class GerberCairoContext(GerberContext): + def __init__(self, scale=300): - GerberContext.__init__(self) + super(GerberCairoContext, self).__init__() self.scale = (scale, scale) self.surface = None self.ctx = None + self.active_layer = None + self.output_ctx = None self.bg = False self.mask = None self.mask_ctx = None @@ -50,37 +54,40 @@ class GerberCairoContext(GerberContext): @property def origin_in_pixels(self): - return tuple(map(mul, self.origin_in_inch, self.scale)) if self.origin_in_inch is not None else (0.0, 0.0) + return (self.scale_point(self.origin_in_inch) + if self.origin_in_inch is not None else (0.0, 0.0)) @property def size_in_pixels(self): - return tuple(map(mul, self.size_in_inch, self.scale)) if self.size_in_inch is not None else (0.0, 0.0) + return (self.scale_point(self.size_in_inch) + if self.size_in_inch is not None else (0.0, 0.0)) def set_bounds(self, bounds, new_surface=False): origin_in_inch = (bounds[0][0], bounds[1][0]) - size_in_inch = (abs(bounds[0][1] - bounds[0][0]), abs(bounds[1][1] - bounds[1][0])) - size_in_pixels = tuple(map(mul, size_in_inch, self.scale)) + size_in_inch = (abs(bounds[0][1] - bounds[0][0]), + abs(bounds[1][1] - bounds[1][0])) + size_in_pixels = self.scale_point(size_in_inch) self.origin_in_inch = origin_in_inch if self.origin_in_inch is None else self.origin_in_inch self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch if (self.surface is None) or new_surface: self.surface_buffer = tempfile.NamedTemporaryFile() - self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) - self.ctx = cairo.Context(self.surface) - self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) - self.ctx.scale(1, -1) - self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) - self.mask = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1]) - self.mask_ctx = cairo.Context(self.mask) - self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) - self.mask_ctx.scale(1, -1) - self.mask_ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1]) - self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0, x0=-self.origin_in_pixels[0], y0=self.size_in_pixels[1] + self.origin_in_pixels[1]) + self.surface = cairo.SVGSurface( + self.surface_buffer, size_in_pixels[0], size_in_pixels[1]) + self.output_ctx = cairo.Context(self.surface) + self.output_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) + self.output_ctx.scale(1, -1) + self.output_ctx.translate(-(origin_in_inch[0] * self.scale[0]), + (-origin_in_inch[1] * self.scale[0]) - size_in_pixels[1]) + self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0, + x0=-self.origin_in_pixels[0], + y0=self.size_in_pixels[1] + self.origin_in_pixels[1]) def render_layers(self, layers, filename, theme=THEMES['default']): """ Render a set of layers """ self.set_bounds(layers[0].bounds, True) self._paint_background(True) + for layer in layers: self._render_layer(layer, theme) self.dump(filename) @@ -117,46 +124,46 @@ class GerberCairoContext(GerberContext): self.color = settings.color self.alpha = settings.alpha self.invert = settings.invert + + # Get a new clean layer to render on + self._new_render_layer() if settings.mirror: raise Warning('mirrored layers aren\'t supported yet...') - if self.invert: - self._clear_mask() for prim in layer.primitives: self.render(prim) - if self.invert: - self._render_mask() + # Add layer to image + self._flatten() def _render_line(self, line, color): - start = map(mul, line.start, self.scale) - end = map(mul, line.end, self.scale) + start = [pos * scale for pos, scale in zip(line.start, self.scale)] + end = [pos * scale for pos, scale in zip(line.end, self.scale)] if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if line.level_polarity == "dark" + else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) if isinstance(line.aperture, Circle): - width = line.aperture.diameter - ctx.set_line_width(width * self.scale[0]) - ctx.set_line_cap(cairo.LINE_CAP_ROUND) - - ctx.move_to(*start) - ctx.line_to(*end) - ctx.stroke() + width = line.aperture.diameter + self.ctx.set_line_width(width * self.scale[0]) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) + self.ctx.line_to(*end) + self.ctx.stroke() elif isinstance(line.aperture, Rectangle): - points = [tuple(map(mul, x, self.scale)) for x in line.vertices] - ctx.set_line_width(0) - ctx.move_to(*points[0]) + points = [self.scale_point(x) for x in line.vertices] + self.ctx.set_line_width(0) + self.ctx.move_to(*points[0]) for point in points[1:]: - ctx.line_to(*point) - ctx.fill() + self.ctx.line_to(*point) + self.ctx.fill() def _render_arc(self, arc, color): - center = map(mul, arc.center, self.scale) - start = map(mul, arc.start, self.scale) - end = map(mul, arc.end, self.scale) + center = self.scale_point(arc.center) + start = self.scale_point(arc.start) + end = self.scale_point(arc.end) radius = self.scale[0] * arc.radius angle1 = arc.start_angle angle2 = arc.end_angle @@ -169,141 +176,137 @@ class GerberCairoContext(GerberContext): width = max(arc.aperture.width, arc.aperture.height, 0.001) if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if arc.level_polarity == "dark"\ + else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) - ctx.set_line_width(width * self.scale[0]) - ctx.set_line_cap(cairo.LINE_CAP_ROUND) - ctx.move_to(*start) # You actually have to do this... + self.ctx.set_line_width(width * self.scale[0]) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) # You actually have to do this... if arc.direction == 'counterclockwise': - ctx.arc(center[0], center[1], radius, angle1, angle2) + self.ctx.arc(center[0], center[1], radius, angle1, angle2) else: - ctx.arc_negative(center[0], center[1], radius, angle1, angle2) - ctx.move_to(*end) # ...lame - ctx.stroke() + self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) + self.ctx.move_to(*end) # ...lame def _render_region(self, region, color): if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if region.level_polarity == "dark" + else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) - - ctx.set_line_width(0) - ctx.set_line_cap(cairo.LINE_CAP_ROUND) - ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale))) - for p in region.primitives: - if isinstance(p, Line): - ctx.line_to(*tuple(map(mul, p.end, self.scale))) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + + self.ctx.set_line_width(0) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*self.scale_point(region.primitives[0].start)) + for prim in region.primitives: + if isinstance(prim, Line): + self.ctx.line_to(*self.scale_point(prim.end)) else: - center = map(mul, p.center, self.scale) - start = map(mul, p.start, self.scale) - end = map(mul, p.end, self.scale) - radius = self.scale[0] * p.radius - angle1 = p.start_angle - angle2 = p.end_angle - if p.direction == 'counterclockwise': - ctx.arc(center[0], center[1], radius, angle1, angle2) + center = self.scale_point(prim.center) + radius = self.scale[0] * prim.radius + angle1 = prim.start_angle + angle2 = prim.end_angle + if prim.direction == 'counterclockwise': + self.ctx.arc(*center, radius=radius, + angle1=angle1, angle2=angle2) else: - ctx.arc_negative(center[0], center[1], radius, angle1, angle2) - ctx.fill() - + self.ctx.arc_negative(*center, radius=radius, + angle1=angle1, angle2=angle2) + self.ctx.fill() def _render_circle(self, circle, color): - center = tuple(map(mul, circle.position, self.scale)) + center = self.scale_point(circle.position) if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if circle.level_polarity == "dark" + else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) if circle.hole_diameter > 0: - ctx.push_group() + self.ctx.push_group() - ctx.set_line_width(0) - ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) - ctx.fill() + self.ctx.set_line_width(0) + self.ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() if circle.hole_diameter > 0: # Render the center clear - ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - ctx.set_operator(cairo.OPERATOR_CLEAR) - ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) - ctx.fill() + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() - ctx.pop_group_to_source() - ctx.paint_with_alpha(1) + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) def _render_rectangle(self, rectangle, color): - ll = map(mul, rectangle.lower_left, self.scale) - width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale))) + lower_left = self.scale_point(rectangle.lower_left) + width, height = tuple([abs(coord) for coord in self.scale_point((rectangle.width, rectangle.height))]) if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if rectangle.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if rectangle.level_polarity == "dark" + else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) if rectangle.rotation != 0: - ctx.save() + self.ctx.save() center = map(mul, rectangle.position, self.scale) matrix = cairo.Matrix() matrix.translate(center[0], center[1]) # For drawing, we already handles the translation - ll[0] = ll[0] - center[0] - ll[1] = ll[1] - center[1] + lower_left[0] = lower_left[0] - center[0] + lower_left[1] = lower_left[1] - center[1] matrix.rotate(rectangle.rotation) - ctx.transform(matrix) + self.ctx.transform(matrix) if rectangle.hole_diameter > 0: - ctx.push_group() + self.ctx.push_group() - ctx.set_line_width(0) - ctx.rectangle(ll[0], ll[1], width, height) - ctx.fill() + self.ctx.set_line_width(0) + self.ctx.rectangle(lower_left[0], lower_left[1], width, height) + self.ctx.fill() if rectangle.hole_diameter > 0: # Render the center clear - ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) center = map(mul, rectangle.position, self.scale) - ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) - ctx.fill() + self.ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() - ctx.pop_group_to_source() - ctx.paint_with_alpha(1) + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) if rectangle.rotation != 0: - ctx.restore() + self.ctx.restore() def _render_obround(self, obround, color): if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) if obround.hole_diameter > 0: - ctx.push_group() + self.ctx.push_group() self._render_circle(obround.subshapes['circle1'], color) self._render_circle(obround.subshapes['circle2'], color) @@ -311,55 +314,54 @@ class GerberCairoContext(GerberContext): if obround.hole_diameter > 0: # Render the center clear - ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) center = map(mul, obround.position, self.scale) - ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) - ctx.fill() + self.ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() - ctx.pop_group_to_source() - ctx.paint_with_alpha(1) + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) def _render_polygon(self, polygon, color): # TODO Ths does not handle rotation of a polygon if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) if polygon.hole_radius > 0: - ctx.push_group() + self.ctx.push_group() vertices = polygon.vertices - ctx.set_line_width(0) - ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.set_line_width(0) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) # Start from before the end so it is easy to iterate and make sure it is closed - ctx.move_to(*map(mul, vertices[-1], self.scale)) + self.ctx.move_to(*map(mul, vertices[-1], self.scale)) for v in vertices: - ctx.line_to(*map(mul, v, self.scale)) + self.ctx.line_to(*map(mul, v, self.scale)) - ctx.fill() + self.ctx.fill() if polygon.hole_radius > 0: # Render the center clear center = tuple(map(mul, polygon.position, self.scale)) - ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) - ctx.set_operator(cairo.OPERATOR_CLEAR) - ctx.set_line_width(0) - ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi) - ctx.fill() + self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi) + self.ctx.fill() - ctx.pop_group_to_source() - ctx.paint_with_alpha(1) + self.ctx.pop_group_to_source() + self.ctx.paint_with_alpha(1) - def _render_drill(self, circle, color): + def _render_drill(self, circle, color=None): + color = color if color is not None else self.drill_color self._render_circle(circle, color) def _render_slot(self, slot, color): @@ -369,19 +371,17 @@ class GerberCairoContext(GerberContext): width = slot.diameter if not self.invert: - ctx = self.ctx - ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) - ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR) + self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR) else: - ctx = self.mask_ctx - ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) - ctx.set_operator(cairo.OPERATOR_CLEAR) - - ctx.set_line_width(width * self.scale[0]) - ctx.set_line_cap(cairo.LINE_CAP_ROUND) - ctx.move_to(*start) - ctx.line_to(*end) - ctx.stroke() + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + + self.ctx.set_line_width(width * self.scale[0]) + self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) + self.ctx.move_to(*start) + self.ctx.line_to(*end) + self.ctx.stroke() def _render_amgroup(self, amgroup, color): self.ctx.push_group() @@ -391,33 +391,52 @@ class GerberCairoContext(GerberContext): self.ctx.paint_with_alpha(1) def _render_test_record(self, primitive, color): - position = tuple(map(add, primitive.position, self.origin_in_inch)) + position = [pos + origin for pos, origin in zip(primitive.position, self.origin_in_inch)] self.ctx.set_operator(cairo.OPERATOR_OVER) - self.ctx.select_font_face('monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD) + self.ctx.select_font_face( + 'monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD) self.ctx.set_font_size(13) self._render_circle(Circle(position, 0.015), color) self.ctx.set_source_rgba(*color, alpha=self.alpha) - self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR) - self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position]) + self.ctx.set_operator( + cairo.OPERATOR_OVER if primitive.level_polarity == 'dark' else cairo.OPERATOR_CLEAR) + self.ctx.move_to(*[self.scale[0] * (coord + 0.015) + for coord in position]) self.ctx.scale(1, -1) self.ctx.show_text(primitive.net_name) - self.ctx.scale(1, -1) - - def _clear_mask(self): - self.mask_ctx.set_operator(cairo.OPERATOR_OVER) - self.mask_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=self.alpha) - self.mask_ctx.paint() - - def _render_mask(self): - self.ctx.set_operator(cairo.OPERATOR_OVER) - ptn = cairo.SurfacePattern(self.mask) + self.ctx.scale(1, -1) + + def _new_render_layer(self, color=None): + size_in_pixels = self.scale_point(self.size_in_inch) + layer = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1]) + ctx = cairo.Context(layer) + ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD) + ctx.scale(1, -1) + ctx.translate(-(self.origin_in_inch[0] * self.scale[0]), + (-self.origin_in_inch[1] * self.scale[0]) + - size_in_pixels[1]) + if self.invert: + ctx.set_operator(cairo.OPERATOR_OVER) + ctx.set_source_rgba(*self.color, alpha=self.alpha) + ctx.paint() + self.ctx = ctx + self.active_layer = layer + + def _flatten(self): + self.output_ctx.set_operator(cairo.OPERATOR_OVER) + ptn = cairo.SurfacePattern(self.active_layer) ptn.set_matrix(self._xform_matrix) - self.ctx.set_source(ptn) - self.ctx.paint() + self.output_ctx.set_source(ptn) + self.output_ctx.paint() + self.ctx = None + self.active_layer = None def _paint_background(self, force=False): - if (not self.bg) or force: - self.bg = True - self.ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0) - self.ctx.paint() - + if (not self.bg) or force: + self.bg = True + self.output_ctx.set_operator(cairo.OPERATOR_OVER) + self.output_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0) + self.output_ctx.paint() + + def scale_point(self, point): + return tuple([coord * scale for coord, scale in zip(point, self.scale)]) \ No newline at end of file diff --git a/gerber/render/render.py b/gerber/render/render.py index f521c44..7bd4c00 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -57,12 +57,14 @@ class GerberContext(object): alpha : float Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.) """ + def __init__(self, units='inch'): self._units = units self._color = (0.7215, 0.451, 0.200) self._background_color = (0.0, 0.0, 0.0) self._alpha = 1.0 self._invert = False + self.ctx = None @property def units(self): @@ -134,11 +136,10 @@ class GerberContext(object): def render(self, primitive): if not primitive: return - color = (self.color if primitive.level_polarity == 'dark' - else self.background_color) self._pre_render_primitive(primitive) + color = self.color if isinstance(primitive, Line): self._render_line(primitive, color) elif isinstance(primitive, Arc): @@ -180,6 +181,7 @@ class GerberContext(object): """ return + def _render_line(self, primitive, color): pass @@ -215,9 +217,9 @@ class GerberContext(object): class RenderSettings(object): + def __init__(self, color=(0.0, 0.0, 0.0), alpha=1.0, invert=False, mirror=False): self.color = color self.alpha = alpha self.invert = invert self.mirror = mirror - diff --git a/gerber/render/theme.py b/gerber/render/theme.py index e538df8..6135ccb 100644 --- a/gerber/render/theme.py +++ b/gerber/render/theme.py @@ -23,7 +23,7 @@ COLORS = { 'white': (1.0, 1.0, 1.0), 'red': (1.0, 0.0, 0.0), 'green': (0.0, 1.0, 0.0), - 'blue' : (0.0, 0.0, 1.0), + 'blue': (0.0, 0.0, 1.0), 'fr-4': (0.290, 0.345, 0.0), 'green soldermask': (0.0, 0.612, 0.396), 'blue soldermask': (0.059, 0.478, 0.651), @@ -36,6 +36,7 @@ COLORS = { class Theme(object): + def __init__(self, name=None, **kwargs): self.name = 'Default' if name is None else name self.background = kwargs.get('background', RenderSettings(COLORS['black'], alpha=0.0)) @@ -67,4 +68,3 @@ THEMES = { topmask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True), bottommask=RenderSettings(COLORS['blue soldermask'], alpha=0.8, invert=True)), } - -- cgit From 8d5e782ccf220d77f0aad5a4e5605dc5cbe0f410 Mon Sep 17 00:00:00 2001 From: Garret Fick Date: Sat, 6 Aug 2016 09:51:58 +0800 Subject: Fix multiple problems with the merge. There are still errors, but I will intentionally leave them because future merges might resolve them --- gerber/render/cairo_backend.py | 2 +- gerber/render/rs274x_backend.py | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index 349640a..dc39607 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -21,7 +21,7 @@ except ImportError: import cairocffi as cairo import math -from operator import mul, di +from operator import mul, div import tempfile diff --git a/gerber/render/rs274x_backend.py b/gerber/render/rs274x_backend.py index 5ab74f0..b4b4612 100644 --- a/gerber/render/rs274x_backend.py +++ b/gerber/render/rs274x_backend.py @@ -476,6 +476,14 @@ class Rs274xContext(GerberContext): def _render_inverted_layer(self): pass + def _new_render_layer(self): + # TODO Might need to implement this + pass + + def _flatten(self): + # TODO Might need to implement this + pass + def dump(self): """Write the rendered file to a StringIO steam""" statements = map(lambda stmt: stmt.to_gerber(self.settings), self.statements) -- cgit From 5af19af190c1fb0f0c5be029d46d63e657dde4d9 Mon Sep 17 00:00:00 2001 From: Hamilton Kibbe Date: Thu, 21 Jan 2016 03:57:44 -0500 Subject: Commit partial merge so I can work on the plane --- gerber/render/cairo_backend.py | 92 ++++++++++++++++++++++++++++++++++++++++-- gerber/render/render.py | 1 + 2 files changed, 90 insertions(+), 3 deletions(-) (limited to 'gerber/render') diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py index dc39607..8c7232f 100644 --- a/gerber/render/cairo_backend.py +++ b/gerber/render/cairo_backend.py @@ -12,6 +12,7 @@ # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + # See the License for the specific language governing permissions and # limitations under the License. @@ -22,14 +23,14 @@ except ImportError: import math from operator import mul, div - import tempfile +import cairocffi as cairo + from ..primitives import * from .render import GerberContext, RenderSettings from .theme import THEMES - try: from cStringIO import StringIO except(ImportError): @@ -138,20 +139,35 @@ class GerberCairoContext(GerberContext): start = [pos * scale for pos, scale in zip(line.start, self.scale)] end = [pos * scale for pos, scale in zip(line.end, self.scale)] if not self.invert: +<<<<<<< HEAD self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR) +======= + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if line.level_polarity == 'dark' + else cairo.OPERATOR_CLEAR) +>>>>>>> 5476da8... Fix a bunch of rendering bugs. else: self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) self.ctx.set_operator(cairo.OPERATOR_CLEAR) if isinstance(line.aperture, Circle): +<<<<<<< HEAD width = line.aperture.diameter +======= + width = line.aperture.diameter +>>>>>>> 5476da8... Fix a bunch of rendering bugs. self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) self.ctx.line_to(*end) +<<<<<<< HEAD self.ctx.stroke() +======= + self.ctx.stroke() +>>>>>>> 5476da8... Fix a bunch of rendering bugs. elif isinstance(line.aperture, Rectangle): points = [self.scale_point(x) for x in line.vertices] self.ctx.set_line_width(0) @@ -176,6 +192,7 @@ class GerberCairoContext(GerberContext): width = max(arc.aperture.width, arc.aperture.height, 0.001) if not self.invert: +<<<<<<< HEAD self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark"\ @@ -184,25 +201,50 @@ class GerberCairoContext(GerberContext): self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) self.ctx.set_operator(cairo.OPERATOR_CLEAR) +======= + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if arc.level_polarity == 'dark' + else cairo.OPERATOR_CLEAR) + else: + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) +>>>>>>> 5476da8... Fix a bunch of rendering bugs. self.ctx.set_line_width(width * self.scale[0]) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*start) # You actually have to do this... if arc.direction == 'counterclockwise': +<<<<<<< HEAD self.ctx.arc(center[0], center[1], radius, angle1, angle2) else: self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2) +======= + self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2) + else: + self.ctx.arc_negative(*center, radius=radius, + angle1=angle1, angle2=angle2) +>>>>>>> 5476da8... Fix a bunch of rendering bugs. self.ctx.move_to(*end) # ...lame def _render_region(self, region, color): if not self.invert: +<<<<<<< HEAD self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) self.ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" +======= + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator(cairo.OPERATOR_OVER + if region.level_polarity == 'dark' +>>>>>>> 5476da8... Fix a bunch of rendering bugs. else cairo.OPERATOR_CLEAR) else: self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) self.ctx.set_operator(cairo.OPERATOR_CLEAR) +<<<<<<< HEAD +======= +>>>>>>> 5476da8... Fix a bunch of rendering bugs. self.ctx.set_line_width(0) self.ctx.set_line_cap(cairo.LINE_CAP_ROUND) self.ctx.move_to(*self.scale_point(region.primitives[0].start)) @@ -220,6 +262,7 @@ class GerberCairoContext(GerberContext): else: self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2) +<<<<<<< HEAD self.ctx.fill() def _render_circle(self, circle, color): center = self.scale_point(circle.position) @@ -249,10 +292,28 @@ class GerberCairoContext(GerberContext): self.ctx.pop_group_to_source() self.ctx.paint_with_alpha(1) +======= + self.ctx.fill() + + def _render_circle(self, circle, color): + center = self.scale_point(circle.position) + if not self.invert: + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator( + cairo.OPERATOR_OVER if circle.level_polarity == 'dark' else cairo.OPERATOR_CLEAR) + else: + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.arc(*center, radius=circle.radius * + self.scale[0], angle1=0, angle2=2 * math.pi) + self.ctx.fill() +>>>>>>> 5476da8... Fix a bunch of rendering bugs. def _render_rectangle(self, rectangle, color): lower_left = self.scale_point(rectangle.lower_left) width, height = tuple([abs(coord) for coord in self.scale_point((rectangle.width, rectangle.height))]) +<<<<<<< HEAD if not self.invert: self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha) @@ -295,6 +356,19 @@ class GerberCairoContext(GerberContext): if rectangle.rotation != 0: self.ctx.restore() +======= + + if not self.invert: + self.ctx.set_source_rgba(*color, alpha=self.alpha) + self.ctx.set_operator( + cairo.OPERATOR_OVER if rectangle.level_polarity == 'dark' else cairo.OPERATOR_CLEAR) + else: + self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0) + self.ctx.set_operator(cairo.OPERATOR_CLEAR) + self.ctx.set_line_width(0) + self.ctx.rectangle(*lower_left, width=width, height=height) + self.ctx.fill() +>>>>>>> 5476da8... Fix a bunch of rendering bugs. def _render_obround(self, obround, color): @@ -424,7 +498,11 @@ class GerberCairoContext(GerberContext): def _flatten(self): self.output_ctx.set_operator(cairo.OPERATOR_OVER) +<<<<<<< HEAD ptn = cairo.SurfacePattern(self.active_layer) +======= + ptn = cairo.SurfacePattern(self.active_layer) +>>>>>>> 5476da8... Fix a bunch of rendering bugs. ptn.set_matrix(self._xform_matrix) self.output_ctx.set_source(ptn) self.output_ctx.paint() @@ -435,8 +513,16 @@ class GerberCairoContext(GerberContext): if (not self.bg) or force: self.bg = True self.output_ctx.set_operator(cairo.OPERATOR_OVER) +<<<<<<< HEAD self.output_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0) self.output_ctx.paint() def scale_point(self, point): - return tuple([coord * scale for coord, scale in zip(point, self.scale)]) \ No newline at end of file + return tuple([coord * scale for coord, scale in zip(point, self.scale)]) +======= + self.output_ctx.set_source_rgba(*self.background_color, alpha=1.0) + self.output_ctx.paint() + + def scale_point(self, point): + return tuple([coord * scale for coord, scale in zip(point, self.scale)]) +>>>>>>> 5476da8... Fix a bunch of rendering bugs. diff --git a/gerber/render/render.py b/gerber/render/render.py index 7bd4c00..b319648 100644 --- a/gerber/render/render.py +++ b/gerber/render/render.py @@ -182,6 +182,7 @@ class GerberContext(object): return + def _render_line(self, primitive, color): pass -- cgit