[Bf-extensions-cvs] [96ac71a] master: Update for changes to ray_cast

[Campbell Barton]

Commit: 96ac71a2f0ac696eb863541792793044abd53d17
Author: Campbell Barton
Date:   Wed Dec 2 21:17:13 2015 +1100
Branches: master
https://developer.blender.org/rBA96ac71a2f0ac696eb863541792793044abd53d17

Update for changes to ray_cast

===================================================================

M	object_print3d_utils/mesh_helpers.py

===================================================================

diff --git a/object_print3d_utils/mesh_helpers.py b/object_print3d_utils/mesh_helpers.py
index bc1869d..5c72f4e 100644
--- a/object_print3d_utils/mesh_helpers.py
+++ b/object_print3d_utils/mesh_helpers.py
@@ -180,10 +180,11 @@ def bmesh_check_thick_object(obj, thickness):
             # Cast the ray backwards
             p_a = p - no_sta
             p_b = p - no_end
+            p_dir = p_b - p_a
 
-            co, no, index = ray_cast(p_a, p_b)
+            ok, co, no, index = ray_cast(p_a, p_dir, p_dir.length)
 
-            if index != -1:
+            if ok:
                 # Add the face we hit
                 for f_iter in (f, bm_faces_new[index]):
                     # if the face wasn't triangulated, just use existing