[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [2155] branches/ivygen/truman_ivy/ add_curve_ivygen.py: - Added a check to make sure the point was not on the surface as this can cause infinite loop

[Andrew Hale]

Revision: 2155
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-extensions&revision=2155
Author:   trumanblending
Date:     2011-07-21 05:51:02 +0000 (Thu, 21 Jul 2011)
Log Message:
-----------
- Added a check to make sure the point was not on the surface as this can cause infinite loop

Modified Paths:
--------------
    branches/ivygen/truman_ivy/add_curve_ivygen.py

Modified: branches/ivygen/truman_ivy/add_curve_ivygen.py
===================================================================
--- branches/ivygen/truman_ivy/add_curve_ivygen.py	2011-07-21 05:48:36 UTC (rev 2154)
+++ branches/ivygen/truman_ivy/add_curve_ivygen.py	2011-07-21 05:51:02 UTC (rev 2155)
@@ -516,12 +516,20 @@
 
         # Get the seeding point
         seedPoint = context.scene.cursor_location
-        
-        if (ob.closest_point_on_mesh(seedPoint)[0] -
-                                     seedPoint).length > self.maxFloatLength/2:
+
+        # Find the distance to the closest point
+        dist = (ob.closest_point_on_mesh(seedPoint)[0] - seedPoint).length
+
+        # If the distance is too far, cancel the operator
+        if dist > (radius * self.maxFloatLength / 2):
             print("Invalid Root Location")
             return {'CANCELLED'}
 
+        # If the point is on the surface move it outward slightly
+        if dist == 0.0:
+            seedPoint += (radius * self.maxFloatLength/10 *
+                                        ob.closest_point_on_mesh(seedPoint)[1])
+
         # Fix the random seed
         rand_seed(self.randomSeed)