Area6: Group Projects

PyOde uses faces and vertices of meshes to detect collisions. Not sure how compatible that is with our code though

myspace = ode.Space() #space to put collision objects

meshdata = ode.TriMeshData()  #create the data buffer

meshdata.build(verts,faces)  #Put vertex and face data into the buffer

mesh = ode.GeomTriMesh(meshdata,myspace) #create collide mesh

from elementtree import ElementTree

def get_verts_faces_from_xml(path):

  """Returns vert,face data from the xml model file"""

  #print dir(ElementTree)

  tree = ElementTree.parse(path)

  root = tree.getroot()

  submeshes = root.find("submeshes").getchildren()

  facedata = []

  vertdata = []

  for submesh in submeshes:

    faces = submesh.find("faces").getchildren()

    vertexbuffers = submesh.find("geometry").getchildren()

    for face in faces:

      indices = [int(face.get(x)) for x in ["v1","v2","v3"]]

      facedata.append(tuple(indices))

    for vb in vertexbuffers:

      if "positions" in vb.keys():

        verts = vb.getchildren()

        for v in verts:

          pos = v.find("position")

          xyz = [eval(pos.get(x)) for x in "xyz"]

          vertdata.append(tuple(xyz))

  return vertdata,facedata