summaryrefslogtreecommitdiff
path: root/gerber/render
diff options
context:
space:
mode:
Diffstat (limited to 'gerber/render')
-rw-r--r--gerber/render/cairo_backend.py124
-rw-r--r--gerber/render/render.py15
-rw-r--r--gerber/render/theme.py45
3 files changed, 113 insertions, 71 deletions
diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 8283ae0..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:
@@ -39,16 +40,25 @@ 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
+ self._xform_matrix = None
- def set_bounds(self, bounds):
+ @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])
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:
+ 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:
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)
@@ -60,6 +70,58 @@ 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, 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)
+
+ 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)
+
+ 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, 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 prim in layer.primitives:
+ self.render(prim)
+ if self.invert:
+ self._render_mask()
def _render_line(self, line, color):
start = map(mul, line.start, self.scale)
@@ -178,12 +240,14 @@ 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)
- self.ctx.set_source_rgb(*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_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 + 0.01) 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)
@@ -196,38 +260,12 @@ 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()
- 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):
- 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 737061e..6af8bf1 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:
@@ -184,16 +183,10 @@ class GerberContext(object):
pass
-class Renderable(object):
- def __init__(self, color=None, alpha=None, invert=False):
+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
- 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
index eae3735..e538df8 100644
--- a/gerber/render/theme.py
+++ b/gerber/render/theme.py
@@ -16,9 +16,14 @@
# limitations under the License.
+from .render import RenderSettings
+
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),
@@ -30,30 +35,36 @@ COLORS = {
}
-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))
+ 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)
+
+ def get(self, key, noneval=None):
+ val = getattr(self, key)
+ return val if val is not None else noneval
THEMES = {
- 'Default': Theme(),
- 'Osh Park': Theme(top=COLORS['enig copper'],
- bottom=COLORS['enig copper'],
- topmask=COLORS['purple soldermask'],
- bottommask=COLORS['purple soldermask']),
+ 'default': Theme(),
+ '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)),
}
generated by cgit (git 2.34.1) at 2024-07-28 05:09:02 +0000