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Render aperture macros with clear regions

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This commit is contained in:
Garret Fick 2016-06-25 12:27:28 +08:00
parent 265aec83f6
commit b01c4822b6
2 changed files with 15 additions and 6 deletions
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18
gerber/am_statements.py
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@ -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):

3
gerber/render/cairo_backend.py
View file

@ -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)