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-rw-r--r--gerber/primitives.py17
1 files changed, 13 insertions, 4 deletions
diff --git a/gerber/primitives.py b/gerber/primitives.py
index 1e26f19..3f68496 100644
--- a/gerber/primitives.py
+++ b/gerber/primitives.py
@@ -256,10 +256,19 @@ class Arc(Primitive):
if theta1 <= math.pi * 1.5 and (theta0 >= math.pi * 1.5 or theta0 < theta1):
points.append((self.center[0], self.center[1] - self.radius ))
x, y = zip(*points)
- min_x = min(x) - self.aperture.radius
- max_x = max(x) + self.aperture.radius
- min_y = min(y) - self.aperture.radius
- max_y = max(y) + self.aperture.radius
+
+ if isinstance(self.aperture, Circle):
+ radius = self.aperture.radius
+ else:
+ # TODO this is actually not valid, but files contain it
+ width = self.aperture.width
+ height = self.aperture.height
+ radius = max(width, height)
+
+ min_x = min(x) - radius
+ max_x = max(x) + radius
+ min_y = min(y) - radius
+ max_y = max(y) + radius
return ((min_x, max_x), (min_y, max_y))
def offset(self, x_offset=0, y_offset=0):