private void calculateCenter()
{
MeshData mesh;
MinMax min_max = MinMax.init;
int mesh_index, vertex;
for (mesh_index = meshes.Count - 1; mesh_index >= 0; --mesh_index)
{
for (mesh = meshes[mesh_index],
vertex = null == (object)mesh ? -1 : (mesh.vertices.Length - 1);
vertex >= 0; --vertex)
{
min_max.Integrate(ref mesh.vertices[vertex]);
}
}
min_max.Fallback();
center = min_max.center;
upper = min_max.max;
lower = min_max.min;
}