Clean up negative render code
This commit is contained in:
Hamilton Kibbe
parent
1cb269131b
commit
60c5906b29
1 changed files with 70 additions and 77 deletions
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@ -44,18 +44,14 @@ class GerberCairoContext(GerberContext):
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size_in_pixels = map(mul, size_in_inch, self.scale)
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self.origin_in_pixels = tuple(map(mul, origin_in_inch, self.scale)) if self.origin_in_pixels is None else self.origin_in_pixels
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self.size_in_pixels = size_in_pixels if self.size_in_pixels is None else self.size_in_pixels
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if self.surface is None:
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self.surface_buffer = tempfile.NamedTemporaryFile()
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self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1])
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self.ctx = cairo.Context(self.surface)
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self.ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
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self.ctx.scale(1, -1)
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self.ctx.translate(-(origin_in_inch[0] * self.scale[0]), (-origin_in_inch[1]*self.scale[0]) - size_in_pixels[1])
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self.mask_buffer = tempfile.NamedTemporaryFile()
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self.mask = cairo.SVGSurface(self.mask_buffer, size_in_pixels[0], size_in_pixels[1])
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self.mask = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])
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self.mask_ctx = cairo.Context(self.mask)
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self.mask_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)
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self.mask_ctx.scale(1, -1)
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@ -65,40 +61,27 @@ class GerberCairoContext(GerberContext):
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start = map(mul, line.start, self.scale)
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end = map(mul, line.end, self.scale)
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if not self.invert:
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self.ctx.set_source_rgba(*color, alpha=self.alpha)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (line.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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if isinstance(line.aperture, Circle):
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width = line.aperture.diameter
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self.ctx.set_line_width(width * self.scale[0])
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self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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self.ctx.move_to(*start)
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self.ctx.line_to(*end)
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self.ctx.stroke()
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elif isinstance(line.aperture, Rectangle):
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points = [tuple(map(mul, x, self.scale)) for x in line.vertices]
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self.ctx.set_line_width(0)
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self.ctx.move_to(*points[0])
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for point in points[1:]:
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self.ctx.line_to(*point)
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self.ctx.fill()
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ctx = self.ctx
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ctx.set_source_rgba(*color, alpha=self.alpha)
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ctx.set_operator(cairo.OPERATOR_OVER if line.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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else:
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self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR)
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if isinstance(line.aperture, Circle):
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width = line.aperture.diameter
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self.mask_ctx.set_line_width(0)
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self.mask_ctx.set_line_width(width * self.scale[0])
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self.mask_ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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self.mask_ctx.move_to(*start)
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self.mask_ctx.line_to(*end)
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self.mask_ctx.stroke()
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elif isinstance(line.aperture, Rectangle):
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points = [tuple(map(mul, x, self.scale)) for x in line.vertices]
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self.mask_ctx.set_line_width(0)
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self.mask_ctx.move_to(*points[0])
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for point in points[1:]:
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self.mask_ctx.line_to(*point)
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self.mask_ctx.fill()
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ctx = self.mask_ctx
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ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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ctx.set_operator(cairo.OPERATOR_CLEAR)
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if isinstance(line.aperture, Circle):
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width = line.aperture.diameter
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ctx.set_line_width(width * self.scale[0])
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ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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ctx.move_to(*start)
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ctx.line_to(*end)
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ctx.stroke()
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elif isinstance(line.aperture, Rectangle):
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points = [tuple(map(mul, x, self.scale)) for x in line.vertices]
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ctx.set_line_width(0)
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ctx.move_to(*points[0])
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for point in points[1:]:
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ctx.line_to(*point)
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ctx.fill()
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def _render_arc(self, arc, color):
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center = map(mul, arc.center, self.scale)
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@ -108,26 +91,38 @@ class GerberCairoContext(GerberContext):
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angle1 = arc.start_angle
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angle2 = arc.end_angle
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width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001
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self.ctx.set_source_rgba(*color, alpha=self.alpha)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (arc.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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self.ctx.set_line_width(width * self.scale[0])
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self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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self.ctx.move_to(*start) # You actually have to do this...
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if arc.direction == 'counterclockwise':
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self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)
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if not self.invert:
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ctx = self.ctx
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ctx.set_source_rgba(*color, alpha=self.alpha)
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ctx.set_operator(cairo.OPERATOR_OVER if arc.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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else:
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self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2)
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self.ctx.move_to(*end) # ...lame
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ctx = self.mask_ctx
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ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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ctx.set_operator(cairo.OPERATOR_CLEAR)
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ctx.set_line_width(width * self.scale[0])
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ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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ctx.move_to(*start) # You actually have to do this...
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if arc.direction == 'counterclockwise':
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ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)
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else:
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ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2)
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ctx.move_to(*end) # ...lame
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def _render_region(self, region, color):
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self.ctx.set_source_rgba(*color, alpha=self.alpha)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (region.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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self.ctx.set_line_width(0)
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self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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self.ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale)))
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if not self.invert:
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ctx = self.ctx
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ctx.set_source_rgba(*color, alpha=self.alpha)
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ctx.set_operator(cairo.OPERATOR_OVER if region.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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else:
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ctx = self.mask_ctx
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ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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ctx.set_operator(cairo.OPERATOR_CLEAR)
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ctx.set_line_width(0)
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ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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ctx.move_to(*tuple(map(mul, region.primitives[0].start, self.scale)))
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for p in region.primitives:
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if isinstance(p, Line):
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self.ctx.line_to(*tuple(map(mul, p.end, self.scale)))
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ctx.line_to(*tuple(map(mul, p.end, self.scale)))
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else:
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center = map(mul, p.center, self.scale)
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start = map(mul, p.start, self.scale)
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@ -136,41 +131,39 @@ class GerberCairoContext(GerberContext):
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angle1 = p.start_angle
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angle2 = p.end_angle
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if p.direction == 'counterclockwise':
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self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)
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ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)
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else:
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self.ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2)
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self.ctx.fill()
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ctx.arc_negative(*center, radius=radius, angle1=angle1, angle2=angle2)
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ctx.fill()
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def _render_circle(self, circle, color):
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center = tuple(map(mul, circle.position, self.scale))
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if not self.invert:
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self.ctx.set_source_rgba(*color, alpha=self.alpha)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (circle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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self.ctx.set_line_width(0)
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self.ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
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self.ctx.fill()
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ctx = self.ctx
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ctx.set_source_rgba(*color, alpha=self.alpha)
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ctx.set_operator(cairo.OPERATOR_OVER if circle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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else:
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self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR)
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self.mask_ctx.set_line_width(0)
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self.mask_ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
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self.mask_ctx.fill()
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ctx = self.mask_ctx
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ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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ctx.set_operator(cairo.OPERATOR_CLEAR)
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ctx.set_line_width(0)
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ctx.arc(*center, radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)
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ctx.fill()
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def _render_rectangle(self, rectangle, color):
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ll = map(mul, rectangle.lower_left, self.scale)
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width, height = tuple(map(mul, (rectangle.width, rectangle.height), map(abs, self.scale)))
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if not self.invert:
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self.ctx.set_source_rgba(*color, alpha=self.alpha)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (rectangle.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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self.ctx.set_line_width(0)
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self.ctx.rectangle(*ll, width=width, height=height)
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self.ctx.fill()
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ctx = self.ctx
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ctx.set_source_rgba(*color, alpha=self.alpha)
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ctx.set_operator(cairo.OPERATOR_OVER if rectangle.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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else:
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self.mask_ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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self.mask_ctx.set_operator(cairo.OPERATOR_CLEAR)
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self.mask_ctx.set_line_width(0)
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self.mask_ctx.rectangle(*ll, width=width, height=height)
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self.mask_ctx.fill()
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ctx = self.mask_ctx
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ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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ctx.set_operator(cairo.OPERATOR_CLEAR)
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ctx.set_line_width(0)
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ctx.rectangle(*ll, width=width, height=height)
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ctx.fill()
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def _render_obround(self, obround, color):
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self._render_circle(obround.subshapes['circle1'], color)
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@ -185,7 +178,7 @@ class GerberCairoContext(GerberContext):
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self.ctx.set_font_size(200)
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self._render_circle(Circle(primitive.position, 0.01), color)
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self.ctx.set_source_rgb(*color)
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self.ctx.set_operator(cairo.OPERATOR_OVER if (primitive.level_polarity == "dark" and not self.invert) else cairo.OPERATOR_CLEAR)
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self.ctx.set_operator(cairo.OPERATOR_OVER if primitive.level_polarity == "dark" else cairo.OPERATOR_CLEAR)
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self.ctx.move_to(*[self.scale[0] * (coord + 0.01) for coord in primitive.position])
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self.ctx.scale(1, -1)
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self.ctx.show_text(primitive.net_name)
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