Commit e58fb5d6 authored by Jan Möbius's avatar Jan Möbius

Python Examples



git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1169 fdac6126-5c0c-442c-9429-916003d36597
parent 48760aac
##################################################
# Getting Started
##################################################
from openmesh import *
mesh = TriMesh()
##################################################
# Adding Items to a Mesh
##################################################
# add a a couple of vertices to the mesh
vh0 = mesh.add_vertex(TriMesh.Point(0, 1, 0))
vh1 = mesh.add_vertex(TriMesh.Point(1, 0, 0))
vh2 = mesh.add_vertex(TriMesh.Point(2, 1, 0))
vh3 = mesh.add_vertex(TriMesh.Point(0,-1, 0))
vh4 = mesh.add_vertex(TriMesh.Point(2,-1, 0))
# add a couple of faces to the mesh
fh0 = mesh.add_face(vh0, vh1, vh2)
fh1 = mesh.add_face(vh1, vh3, vh4)
fh2 = mesh.add_face(vh0, vh3, vh1)
# add another face to the mesh, this time using a list
vh_list = [vh2, vh1, vh4]
fh3 = mesh.add_face(vh_list)
# 0 ==== 2
# |\ 0 /|
# | \ / |
# |2 1 3|
# | / \ |
# |/ 1 \|
# 3 ==== 4
##################################################
# Iterators
##################################################
# iterate over all vertices
for vh in mesh.vertices():
print vh.idx()
# iterate over all halfedges
for heh in mesh.halfedges():
print heh.idx()
# iterate over all edges
for eh in mesh.edges():
print eh.idx()
# iterate over all faces
for fh in mesh.faces():
print fh.idx()
##################################################
# Circulators
##################################################
# iterate over all neighboring vertices
for vh in mesh.vv(vh1):
print vh.idx()
# iterate over all incoming halfedges
for heh in mesh.vih(vh1):
print heh.idx()
# iterate over all outgoing halfedges
for heh in mesh.voh(vh1):
print heh.idx()
# iterate over all adjacent edges
for eh in mesh.ve(vh1):
print eh.idx()
# iterate over all adjacent faces
for fh in mesh.vf(vh1):
print fh.idx()
# iterate over the face's vertices
for vh in mesh.fv(fh0):
print vh.idx()
# iterate over the face's halfedges
for heh in mesh.fh(fh0):
print heh.idx()
# iterate over the face's edges
for eh in mesh.fe(fh0):
print eh.idx()
# iterate over all edge-neighboring faces
for fh in mesh.ff(fh0):
print fh.idx()
##################################################
# Properties
##################################################
prop_handle = VPropHandle()
mesh.add_property(prop_handle, "cogs")
for vh in mesh.vertices():
cog = TriMesh.Point(0,0,0)
valence = 0
for neighbor in mesh.vv(vh):
cog += mesh.point(neighbor)
valence += 1
mesh.set_property(prop_handle, vh, cog / valence)
mesh.remove_property(prop_handle)
##################################################
# Property Managers
##################################################
prop_man = VPropertyManager(mesh, "cogs")
prop_man.set_range(mesh.vertices(), TriMesh.Point(0,0,0))
for vh in mesh.vertices():
valence = 0
for neighbor in mesh.vv(vh):
prop_man[vh] += mesh.point(neighbor)
valence += 1
prop_man[vh] /= valence
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