def constructOrientedSurface(skelcontext, faces, direction):
# orientFaces() returns an OrientedSurface object, but its
# orientation may not be correct.
ofaces = cskeletonface.orientFaces(skelcontext.getObject(), faces, None)
if not ofaces:
raise ooferror.ErrUserError(
"Failed to construct an orientable surface")
if ofaces.closed():
if direction.string() not in director.closedSurfaceDirections:
raise ooferror.ErrUserError("Direction must be one of " +
` director.closedSurfaceDirections `)
vol = ofaces.volume()
if (vol > 0 and direction == "Inward"
or vol < 0 and direction == "Outward"):
ofaces.reverse()
else: # not a closed surface
if direction.string() not in director.unclosedDirections:
raise ooferror.ErrUserError("Direction must be one of " +
` director.unclosedDirections `)
normal = ofaces.normal()
if ((direction == '-X to +X' and normal[0] < 0)
or (direction == '+X to -X' and normal[0] > 0)
or (direction == '-Y to +Y' and normal[1] < 0)
or (direction == '+Y to -Y' and normal[1] > 0)
or (direction == '-Z to +Z' and normal[2] < 0)
or (direction == '+Z to -Z' and normal[2] > 0)):
ofaces.reverse()
return ofaces
def closedCheck(self):
getfaces = skeletongroupwidgets.faceExtractor[self.aggwidget.__class__]
faces = getfaces(self.skelcontext, self.aggwidget.get_value())
ofaces = cskeletonface.orientFaces(self.skelcontext.getObject(), faces,
None)
if not ofaces:
return None
if ofaces.closed():
return "closed"
return "open"
def _loadFaceBoundary(menuitem, skeleton, name, faces, exterior):
# "faces" is a list of triples of integer indices into skeleton.nodes
skelcontext = skeletoncontext.skeletonContexts[skeleton]
skeleton = skelcontext.getObject()
facelist = [
skeleton.findExistingFace(*[skeleton.getNode(i) for i in f])
for f in faces
]
# The first face determines the orientation of the whole surface.
face0 = skeleton.createOrientedFace(
*[skeleton.getNode(i) for i in faces[0]])
ofaces = cskeletonface.orientFaces(skeleton, facelist, face0)
# autoselect=0 prevents the boundary from being selected in the
# skelcontext. Selection shouldn't happen except by explicit user
# action.
skelcontext.createFaceBoundary(name, ofaces, exterior, autoselect=0)