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Code Issues Projects Releases Packages Wiki Activity Actions 8

Groups now also have a convexHull

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This commit is contained in:
Jaime van Kessel 2015-07-14 16:41:59 +02:00
parent 9475c8e0c1
commit 8e6dd2486f
4 changed files with 83 additions and 23 deletions
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47
cura/ConvexHullJob.py
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@ -16,20 +16,47 @@ class ConvexHullJob(Job):
self._node = node
def run(self):
if not self._node or not self._node.getMeshData():
if not self._node:
return
## If the scene node is a group, use the hull of the children to calculate its hull.
if self._node.callDecoration("isGroup"):
hull = Polygon(numpy.zeros((0, 2), dtype=numpy.int32))
for child in self._node.getChildren():
child_hull = child.callDecoration("getConvexHull")
if child_hull:
hull.setPoints(numpy.append(hull.getPoints(), child_hull.getPoints(), axis = 0))
if hull.getPoints().size < 3:
self._node.callDecoration("setConvexHull", None)
self._node.callDecoration("setConvexHullJob", None)
return
else:
if not self._node.getMeshData():
return
mesh = self._node.getMeshData()
vertex_data = mesh.getTransformed(self._node.getWorldTransformation()).getVertices()
mesh = self._node.getMeshData()
vertex_data = mesh.getTransformed(self._node.getWorldTransformation()).getVertices()
hull = Polygon(numpy.rint(vertex_data[:, [0, 2]]).astype(int))
hull = Polygon(numpy.rint(vertex_data[:, [0, 2]]).astype(int))
# First, calculate the normal convex hull around the points
hull = hull.getConvexHull()
#print("hull: " , self._node.callDecoration("isGroup"), " " , hull.getPoints())
# Then, do a Minkowski hull with a simple 1x1 quad to outset and round the normal convex hull.
hull = hull.getMinkowskiHull(Polygon(numpy.array([[-1, -1], [-1, 1], [1, 1], [1, -1]], numpy.float32)))
hull_node = ConvexHullNode.ConvexHullNode(self._node, hull, Application.getInstance().getController().getScene().getRoot())
self._node._convex_hull = hull
delattr(self._node, "_convex_hull_job")
self._node.callDecoration("setConvexHullNode", hull_node)
self._node.callDecoration("setConvexHull", hull)
self._node.callDecoration("setConvexHullJob", None)
#if self._node.getParent().callDecoration("isGroup"):
# if self._node.getParent().callDecoration("getConvexHull"):
# self._node.getParent().callDecoration("getConvexHullNode").setParent(None)
# self._node.getParent().callDecoration("setConvexHull", None)
# self._node.getParent().callDecoration("setConvexHullJob", None)
#if hasattr(self._node.getParent(), "_convex_hull"):
# convex_hull = getattr(self._node.getParent(), "_convex_hull")
#delattr(self._node.getParent(), "_convex_hull")