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Don't crash when loading model before a printer is loaded

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The model won't load successfully and you get a message that it failed to load, but Cura won't crash at least.

Contributes to issue CURA-4736.
This commit is contained in:
Ghostkeeper 2017-12-29 14:47:55 +01:00
parent 1bcdc0357e
commit 4a3109c885
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2 changed files with 4 additions and 5 deletions
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2
cura/CuraApplication.py
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@ -1387,7 +1387,7 @@ class CuraApplication(QtApplication):
if node.callDecoration("isSliceable"):
# Only check position if it's not already blatantly obvious that it won't fit.
if node.getBoundingBox().width < self._volume.getBoundingBox().width or node.getBoundingBox().depth < self._volume.getBoundingBox().depth:
if node.getBoundingBox() is None or self._volume.getBoundingBox() is None or node.getBoundingBox().width < self._volume.getBoundingBox().width or node.getBoundingBox().depth < self._volume.getBoundingBox().depth:
# Find node location
offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(node, min_offset = min_offset)

7
cura/ShapeArray.py
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@ -43,13 +43,12 @@ class ShapeArray:
transform_x = transform._data[0][3]
transform_y = transform._data[2][3]
hull_verts = node.callDecoration("getConvexHull")
# If a model is too small then it will not contain any points
if hull_verts is None or not hull_verts.getPoints().any():
return None, None
# For one_at_a_time printing you need the convex hull head.
hull_head_verts = node.callDecoration("getConvexHullHead") or hull_verts
# If a model is to small then it will not contain any points
if not hull_verts.getPoints().any():
return None, None
offset_verts = hull_head_verts.getMinkowskiHull(Polygon.approximatedCircle(min_offset))
offset_points = copy.deepcopy(offset_verts._points) # x, y
offset_points[:, 0] = numpy.add(offset_points[:, 0], -transform_x)