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Improved robustness of Platform physics by checking if the hulls are calculated before trying to intersect them.

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fixes CURA-1827
This commit is contained in:
Jaime van Kessel 2016-07-08 15:17:28 +02:00
parent 1ced206c5d
commit 19933cb4e7
2 changed files with 11 additions and 13 deletions
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22
cura/PlatformPhysics.py
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@ -63,9 +63,6 @@ class PlatformPhysics:
elif bbox.bottom < z_offset:
move_vector = move_vector.set(y=(-bbox.bottom) - z_offset)
#if not Float.fuzzyCompare(bbox.bottom, 0.0):
# pass#move_vector.setY(-bbox.bottom)
# If there is no convex hull for the node, start calculating it and continue.
if not node.getDecorator(ConvexHullDecorator):
node.addDecorator(ConvexHullDecorator())
@ -78,24 +75,18 @@ class PlatformPhysics:
if other_node is root or type(other_node) is not SceneNode or other_node is node:
continue
# Ignore colissions of a group with it's own children
# Ignore collisions of a group with it's own children
if other_node in node.getAllChildren() or node in other_node.getAllChildren():
continue
# Ignore colissions within a group
# Ignore collisions within a group
if other_node.getParent().callDecoration("isGroup") is not None or node.getParent().callDecoration("isGroup") is not None:
continue
#if node.getParent().callDecoration("isGroup") is other_node.getParent().callDecoration("isGroup"):
# continue
# Ignore nodes that do not have the right properties set.
if not other_node.callDecoration("getConvexHull") or not other_node.getBoundingBox():
continue
# Check to see if the bounding boxes intersect. If not, we can ignore the node as there is no way the hull intersects.
#if node.getBoundingBox().intersectsBox(other_node.getBoundingBox()) == AxisAlignedBox.IntersectionResult.NoIntersection:
# continue
# Get the overlap distance for both convex hulls. If this returns None, there is no intersection.
head_hull = node.callDecoration("getConvexHullHead")
if head_hull:
@ -105,7 +96,14 @@ class PlatformPhysics:
if other_head_hull:
overlap = node.callDecoration("getConvexHull").intersectsPolygon(other_head_hull)
else:
overlap = node.callDecoration("getConvexHull").intersectsPolygon(other_node.callDecoration("getConvexHull"))
own_convex_hull = node.callDecoration("getConvexHull")
other_convex_hull = other_node.callDecoration("getConvexHull")
if own_convex_hull and other_convex_hull:
overlap = own_convex_hull.intersectsPolygon(other_convex_hull)
else:
# This can happen in some cases if the object is not yet done with being loaded.
# Simply waiting for the next tick seems to resolve this correctly.
overlap = None
if overlap is None:
continue