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-rw-r--r--gerber/render/cairo_backend.py488
1 files changed, 305 insertions, 183 deletions
diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 31a1e77..a2baa47 100644
--- a/gerber/render/cairo_backend.py
+++ b/gerber/render/cairo_backend.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
@@ -29,6 +29,7 @@ import os
from .render import GerberContext, RenderSettings
from .theme import THEMES
from ..primitives import *
+from ..utils import rotate_point
from io import BytesIO
@@ -67,16 +68,13 @@ class GerberCairoContext(GerberContext):
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
+ self._xform_matrix = cairo.Matrix(xx=1.0, yy=-1.0,
+ x0=-self.origin_in_pixels[0],
+ y0=self.size_in_pixels[1])
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.output_ctx = cairo.Context(self.surface)
- 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_layer(self, layer, filename=None, settings=None, bgsettings=None,
verbose=False):
@@ -155,6 +153,23 @@ class GerberCairoContext(GerberContext):
self.surface_buffer.close()
self.surface_buffer = None
+ def _new_mask(self):
+ class Mask:
+ def __enter__(msk):
+ size_in_pixels = self.size_in_pixels
+ msk.surface = cairo.SVGSurface(None, size_in_pixels[0],
+ size_in_pixels[1])
+ msk.ctx = cairo.Context(msk.surface)
+ msk.ctx.translate(-self.origin_in_pixels[0], -self.origin_in_pixels[1])
+ return msk
+
+
+ def __exit__(msk, exc_type, exc_val, traceback):
+ if hasattr(msk.surface, 'finish'):
+ msk.surface.finish()
+
+ return Mask()
+
def _render_layer(self, layer, settings):
self.invert = settings.invert
# Get a new clean layer to render on
@@ -167,31 +182,36 @@ class GerberCairoContext(GerberContext):
def _render_line(self, line, color):
start = [pos * scale for pos, scale in zip(line.start, self.scale)]
end = [pos * scale for pos, scale in zip(line.end, self.scale)]
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- 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 = [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:]:
- self.ctx.line_to(*point)
- self.ctx.fill()
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and line.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._new_mask() as mask:
+ if isinstance(line.aperture, Circle):
+ width = line.aperture.diameter
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*start)
+ mask.ctx.line_to(*end)
+ mask.ctx.stroke()
+
+ elif hasattr(line, 'vertices') and line.vertices is not None:
+ points = [self.scale_point(x) for x in line.vertices]
+ mask.ctx.set_line_width(0)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_arc(self, arc, color):
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
+ two_pi = 2 * math.pi
+ angle1 = (arc.start_angle + two_pi) % two_pi
+ angle2 = (arc.end_angle + two_pi) % two_pi
if angle1 == angle2 and arc.quadrant_mode != 'single-quadrant':
# Make the angles slightly different otherwise Cario will draw nothing
angle2 -= 0.000000001
@@ -200,61 +220,111 @@ class GerberCairoContext(GerberContext):
else:
width = max(arc.aperture.width, arc.aperture.height, 0.001)
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- 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':
- 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
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and arc.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND if isinstance(arc.aperture, Circle) else cairo.LINE_CAP_SQUARE)
+ mask.ctx.move_to(*start) # You actually have to do this...
+ if arc.direction == 'counterclockwise':
+ mask.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)
+ else:
+ mask.ctx.arc_negative(*center, radius=radius,
+ angle1=angle1, angle2=angle2)
+ mask.ctx.move_to(*end) # ...lame
+ mask.ctx.stroke()
+
+ #if isinstance(arc.aperture, Rectangle):
+ # print("Flash Rectangle Ends")
+ # print(arc.aperture.rotation * 180/math.pi)
+ # rect = arc.aperture
+ # width = self.scale[0] * rect.width
+ # height = self.scale[1] * rect.height
+ # for point, angle in zip((start, end), (angle1, angle2)):
+ # print("{} w {} h{}".format(point, rect.width, rect.height))
+ # mask.ctx.rectangle(point[0] - width/2.0,
+ # point[1] - height/2.0, width, height)
+ # mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
+
def _render_region(self, region, color):
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- 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(*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 = 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)
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert) and region.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*self.scale_point(region.primitives[0].start))
+ for prim in region.primitives:
+ if isinstance(prim, Line):
+ mask.ctx.line_to(*self.scale_point(prim.end))
else:
- self.ctx.arc_negative(*center, radius=radius,
- angle1=angle1, angle2=angle2)
- self.ctx.fill()
+ center = self.scale_point(prim.center)
+ radius = self.scale[0] * prim.radius
+ angle1 = prim.start_angle
+ angle2 = prim.end_angle
+ if prim.direction == 'counterclockwise':
+ mask.ctx.arc(*center, radius=radius,
+ angle1=angle1, angle2=angle2)
+ else:
+ mask.ctx.arc_negative(*center, radius=radius,
+ angle1=angle1, angle2=angle2)
+ mask.ctx.fill()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_circle(self, circle, color):
center = self.scale_point(circle.position)
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- 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 circle.hole_diameter > 0:
- # Render the center clear
-
- 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()
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and circle.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+ mask.ctx.arc(center[0],
+ center[1],
+ radius=(circle.radius * self.scale[0]),
+ angle1=0,
+ angle2=(2 * math.pi))
+ mask.ctx.fill()
+
+ if hasattr(circle, 'hole_diameter') and circle.hole_diameter > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ mask.ctx.arc(center[0],
+ center[1],
+ radius=circle.hole_radius * self.scale[0],
+ angle1=0,
+ angle2=2 * math.pi)
+ mask.ctx.fill()
+
+ if (hasattr(circle, 'hole_width') and hasattr(circle, 'hole_height')
+ and circle.hole_width > 0 and circle.hole_height > 0):
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if circle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((circle.hole_width, circle.hole_height))
+ lower_left = rotate_point(
+ (center[0] - width / 2.0, center[1] - height / 2.0),
+ circle.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ circle.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ circle.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ circle.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_rectangle(self, rectangle, color):
@@ -262,101 +332,156 @@ class GerberCairoContext(GerberContext):
width, height = tuple([abs(coord) for coord in
self.scale_point((rectangle.width,
rectangle.height))])
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- if rectangle.level_polarity == 'dark' and
- (not self.invert) else cairo.OPERATOR_CLEAR)
-
- 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
- lower_left[0] = lower_left[0] - center[0]
- lower_left[1] = lower_left[1] - center[1]
- matrix.rotate(rectangle.rotation)
- self.ctx.transform(matrix)
-
- if rectangle.hole_diameter > 0:
- self.ctx.push_group()
-
- self.ctx.set_line_width(0)
- self.ctx.rectangle(*lower_left, width=width, height=height)
- self.ctx.fill()
-
- if rectangle.hole_diameter > 0:
- # Render the center clear
- self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)
- self.ctx.set_operator(cairo.OPERATOR_CLEAR
- if rectangle.level_polarity == 'dark'
- and (not self.invert)
- else cairo.OPERATOR_SOURCE)
- center = map(mul, rectangle.position, self.scale)
- self.ctx.arc(center[0], center[1],
- radius=rectangle.hole_radius * self.scale[0], angle1=0,
- angle2=2 * math.pi)
- self.ctx.fill()
-
- if rectangle.rotation != 0:
- self.ctx.restore()
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and rectangle.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._new_mask() as mask:
+
+ mask.ctx.set_line_width(0)
+ mask.ctx.rectangle(*lower_left, width=width, height=height)
+ mask.ctx.fill()
+
+ center = self.scale_point(rectangle.position)
+ if rectangle.hole_diameter > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+
+ mask.ctx.arc(center[0], center[1],
+ radius=rectangle.hole_radius * self.scale[0], angle1=0,
+ angle2=2 * math.pi)
+ mask.ctx.fill()
+
+ if rectangle.hole_width > 0 and rectangle.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((rectangle.hole_width, rectangle.hole_height))
+ lower_left = rotate_point((center[0] - width/2.0, center[1] - height/2.0), rectangle.rotation, center)
+ lower_right = rotate_point((center[0] + width/2.0, center[1] - height/2.0), rectangle.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0), rectangle.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0), rectangle.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_obround(self, obround, color):
- if obround.hole_diameter > 0:
- self.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
- 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)
- self.ctx.arc(center[0], center[1],
- radius=obround.hole_radius * self.scale[0], angle1=0,
- angle2=2 * math.pi)
- self.ctx.fill()
-
- self.ctx.pop_group_to_source()
- self.ctx.paint_with_alpha(1)
-
+ self.ctx.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and obround.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(0)
+
+ # Render circles
+ for circle in (obround.subshapes['circle1'], obround.subshapes['circle2']):
+ center = self.scale_point(circle.position)
+ mask.ctx.arc(center[0],
+ center[1],
+ radius=(circle.radius * self.scale[0]),
+ angle1=0,
+ angle2=(2 * math.pi))
+ mask.ctx.fill()
+
+ # Render Rectangle
+ rectangle = obround.subshapes['rectangle']
+ lower_left = self.scale_point(rectangle.lower_left)
+ width, height = tuple([abs(coord) for coord in
+ self.scale_point((rectangle.width,
+ rectangle.height))])
+ mask.ctx.rectangle(*lower_left, width=width, height=height)
+ mask.ctx.fill()
+
+ center = self.scale_point(obround.position)
+ if obround.hole_diameter > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR)
+ mask.ctx.arc(center[0], center[1],
+ radius=obround.hole_radius * self.scale[0], angle1=0,
+ angle2=2 * math.pi)
+ mask.ctx.fill()
+
+ if obround.hole_width > 0 and obround.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if rectangle.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height =self.scale_point((obround.hole_width, obround.hole_height))
+ lower_left = rotate_point((center[0] - width / 2.0, center[1] - height / 2.0),
+ obround.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ obround.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ obround.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ obround.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_polygon(self, polygon, color):
-
- # TODO Ths does not handle rotation of a polygon
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
- if polygon.level_polarity == 'dark' and
- (not self.invert) else cairo.OPERATOR_CLEAR)
- if polygon.hole_radius > 0:
- self.ctx.push_group()
-
- vertices = polygon.vertices
-
- 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()
-
- 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
- if polygon.level_polarity == 'dark'
- and (not self.invert)
- else cairo.OPERATOR_SOURCE)
- 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.set_operator(cairo.OPERATOR_OVER
+ if (not self.invert)
+ and polygon.level_polarity == 'dark'
+ else cairo.OPERATOR_CLEAR)
+ with self._new_mask() as mask:
+
+ vertices = polygon.vertices
+ mask.ctx.set_line_width(0)
+ mask.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
+ mask.ctx.move_to(*self.scale_point(vertices[-1]))
+ for v in vertices:
+ mask.ctx.line_to(*self.scale_point(v))
+ mask.ctx.fill()
+
+ center = self.scale_point(polygon.position)
+ if polygon.hole_radius > 0:
+ # Render the center clear
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if polygon.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ mask.ctx.set_line_width(0)
+ mask.ctx.arc(center[0],
+ center[1],
+ polygon.hole_radius * self.scale[0], 0, 2 * math.pi)
+ mask.ctx.fill()
+
+ if polygon.hole_width > 0 and polygon.hole_height > 0:
+ mask.ctx.set_operator(cairo.OPERATOR_CLEAR
+ if polygon.level_polarity == 'dark'
+ and (not self.invert)
+ else cairo.OPERATOR_OVER)
+ width, height = self.scale_point((polygon.hole_width, polygon.hole_height))
+ lower_left = rotate_point((center[0] - width / 2.0, center[1] - height / 2.0),
+ polygon.rotation, center)
+ lower_right = rotate_point((center[0] + width / 2.0, center[1] - height / 2.0),
+ polygon.rotation, center)
+ upper_left = rotate_point((center[0] - width / 2.0, center[1] + height / 2.0),
+ polygon.rotation, center)
+ upper_right = rotate_point((center[0] + width / 2.0, center[1] + height / 2.0),
+ polygon.rotation, center)
+ points = (lower_left, lower_right, upper_right, upper_left)
+ mask.ctx.move_to(*points[-1])
+ for point in points:
+ mask.ctx.line_to(*point)
+ mask.ctx.fill()
+
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
def _render_drill(self, circle, color=None):
color = color if color is not None else self.drill_color
@@ -368,22 +493,20 @@ class GerberCairoContext(GerberContext):
width = slot.diameter
- self.ctx.set_operator(cairo.OPERATOR_SOURCE
+ 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()
+ with self._new_mask() as mask:
+ mask.ctx.set_line_width(width * self.scale[0])
+ mask.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
+ mask.ctx.move_to(*start)
+ mask.ctx.line_to(*end)
+ mask.ctx.stroke()
+ self.ctx.mask_surface(mask.surface, self.origin_in_pixels[0])
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):
position = [pos + origin for pos, origin in
@@ -392,7 +515,7 @@ class GerberCairoContext(GerberContext):
'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_operator(cairo.OPERATOR_SOURCE
+ 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 + 0.015) for coord in position])
@@ -405,26 +528,25 @@ class GerberCairoContext(GerberContext):
matrix = copy.copy(self._xform_matrix)
layer = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
ctx = cairo.Context(layer)
- 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_source_rgba(0.0, 0.0, 0.0, 1.0)
ctx.set_operator(cairo.OPERATOR_OVER)
ctx.paint()
if mirror:
matrix.xx = -1.0
matrix.x0 = self.origin_in_pixels[0] + self.size_in_pixels[0]
self.ctx = ctx
+ self.ctx.set_matrix(matrix)
self.active_layer = layer
self.active_matrix = matrix
+
def _flatten(self, color=None, alpha=None):
color = color if color is not None else self.color
alpha = alpha if alpha is not None else self.alpha
- ptn = cairo.SurfacePattern(self.active_layer)
- ptn.set_matrix(self.active_matrix)
self.output_ctx.set_source_rgba(*color, alpha=alpha)
- self.output_ctx.mask(ptn)
+ self.output_ctx.mask_surface(self.active_layer)
self.ctx = None
self.active_layer = None
self.active_matrix = None
generated by cgit (git 2.34.1) at 2024-12-16 04:33:40 +0000