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Don't create disallowed areas for areas without any points

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It seems people edit definitions to remove all vertices. This causes Cura to crash because of the calculation of disallowed areas.

Fixes Sentry issue CURA-2FY.
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Ghostkeeper 2021-06-17 14:56:49 +02:00
parent fcd585963f
commit cf7e1af99d
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1 changed files with 3 additions and 1 deletions
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4
cura/BuildVolume.py
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@ -1,4 +1,4 @@
# Copyright (c) 2020 Ultimaker B.V.
# Copyright (c) 2021 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import numpy
@ -916,6 +916,8 @@ class BuildVolume(SceneNode):
return {}
for area in self._global_container_stack.getProperty("machine_disallowed_areas", "value"):
if len(area) == 0:
continue # Numpy doesn't deal well with 0-length arrays, since it can't determine the dimensionality of them.
polygon = Polygon(numpy.array(area, numpy.float32))
polygon = polygon.getMinkowskiHull(Polygon.approximatedCircle(border_size))
machine_disallowed_polygons.append(polygon)