Render polygon flashes

1 files changed, 16 insertions, 0 deletions

diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 3ee38ae..68e9e98 100644
--- a/gerber/render/cairo_backend.py
+++ b/gerber/render/cairo_backend.py
@@ -148,6 +148,22 @@ class GerberCairoContext(GerberContext):
         self._render_circle(obround.subshapes['circle1'], color)

         self._render_circle(obround.subshapes['circle2'], color)

         self._render_rectangle(obround.subshapes['rectangle'], color)

+        

+    def _render_polygon(self, polygon, color):

+        vertices = polygon.vertices 

+        

+        self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)

+        self.ctx.set_operator(cairo.OPERATOR_OVER if (polygon.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)

+        

+        # 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()

+        

 

     def _render_drill(self, circle, color):

         self._render_circle(circle, color)