add obb functions

Author: tomvanmele

src/compas/datastructures/mesh/mesh.py

@@ -6,6 +6,8 @@
 import sys
 from math import pi
 
+import compas
+
 from compas.files import OBJ
 from compas.files import OFF
 from compas.files import PLY
@@ -123,6 +125,13 @@ class Mesh(HalfEdge):
     unify_cycles = mesh_unify_cycles
     quads_to_triangles = mesh_quads_to_triangles
 
+    if not compas.IPY:
+        from .bbox_numpy import mesh_oriented_bounding_box_numpy
+        from .bbox_numpy import mesh_oriented_bounding_box_xy_numpy
+
+        obb_numpy = mesh_oriented_bounding_box_numpy
+        obb_xy_numpy = mesh_oriented_bounding_box_xy_numpy
+
     def __init__(self, name=None, default_vertex_attributes=None, default_edge_attributes=None, default_face_attributes=None):
         name = name or 'Mesh'
         _default_vertex_attributes = {'x': 0.0, 'y': 0.0, 'z': 0.0}