diff options
Diffstat (limited to 'gerber')
| -rw-r--r-- | gerber/am_statements.py | 18 | ||||
| -rw-r--r-- | gerber/render/cairo_backend.py | 3 |
2 files changed, 15 insertions, 6 deletions
diff --git a/gerber/am_statements.py b/gerber/am_statements.py index c3229ba..f5330a5 100644 --- a/gerber/am_statements.py +++ b/gerber/am_statements.py @@ -76,6 +76,12 @@ class AMPrimitive(object): Convert to a primitive, as defines the primitives module (for drawing) """ raise NotImplementedError('Subclass must implement `to-primitive`') + + @property + def _level_polarity(self): + if self.exposure == 'off': + return 'clear' + return 'dark' def __eq__(self, other): return self.__dict__ == other.__dict__ @@ -209,7 +215,7 @@ class AMCirclePrimitive(AMPrimitive): return '{code},{exposure},{diameter},{x},{y}*'.format(**data) def to_primitive(self, units): - return Circle((self.position), self.diameter, units=units) + return Circle((self.position), self.diameter, units=units, level_polarity=self._level_polarity) class AMVectorLinePrimitive(AMPrimitive): @@ -302,7 +308,7 @@ class AMVectorLinePrimitive(AMPrimitive): return fmtstr.format(**data) def to_primitive(self, units): - return Line(self.start, self.end, Rectangle(None, self.width, self.width), units=units) + return Line(self.start, self.end, Rectangle(None, self.width, self.width), units=units, level_polarity=self._level_polarity) class AMOutlinePrimitive(AMPrimitive): @@ -419,7 +425,7 @@ class AMOutlinePrimitive(AMPrimitive): if lines[0].start != lines[-1].end: raise ValueError('Outline must be closed') - return Outline(lines, units=units) + return Outline(lines, units=units, level_polarity=self._level_polarity) class AMPolygonPrimitive(AMPrimitive): @@ -517,7 +523,7 @@ class AMPolygonPrimitive(AMPrimitive): return fmt.format(**data) def to_primitive(self, units): - return Polygon(self.position, self.vertices, self.diameter / 2.0, rotation=math.radians(self.rotation), units=units) + return Polygon(self.position, self.vertices, self.diameter / 2.0, rotation=math.radians(self.rotation), units=units, level_polarity=self._level_polarity) class AMMoirePrimitive(AMPrimitive): @@ -795,7 +801,7 @@ class AMThermalPrimitive(AMPrimitive): prev_point = cur_point - outlines.append(Outline(lines, units=units)) + outlines.append(Outline(lines, units=units, level_polarity=self._level_polarity)) return outlines @@ -891,7 +897,7 @@ class AMCenterLinePrimitive(AMPrimitive): return fmt.format(**data) def to_primitive(self, units): - return Rectangle(self.center, self.width, self.height, rotation=math.radians(self.rotation), units=units) + return Rectangle(self.center, self.width, self.height, rotation=math.radians(self.rotation), units=units, level_polarity=self._level_polarity) class AMLowerLeftLinePrimitive(AMPrimitive): 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)
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