+ def get_boundingbox(self):\r
+ vertices_size=len(self.vertices)\r
+ if(vertices_size==0):\r
+ return ([0, 0, 0], [0, 0, 0])\r
+ def vertex_gen_factory():\r
+ for i in range(0, vertices_size, 3):\r
+ yield [\r
+ self.vertices[i],\r
+ self.vertices[i+1],\r
+ self.vertices[i+2]\r
+ ]\r
+ vertex_gen=vertex_gen_factory()\r
+ v=next(vertex_gen)\r
+ max_v=v[:]\r
+ min_v=v[:]\r
+ for v in vertex_gen:\r
+ min_v[0]=min(min_v[0], v[0]) \r
+ min_v[1]=min(min_v[1], v[1]) \r
+ min_v[2]=min(min_v[2], v[2]) \r
+ max_v[0]=max(max_v[0], v[0]) \r
+ max_v[1]=max(max_v[1], v[1]) \r
+ max_v[2]=max(max_v[2], v[2]) \r
+ return (min_v, max_v)\r