[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [3585] trunk/py/scripts/addons/ object_fracture_cell: non uniform cell shape, currently only xyz scale.

[Campbell Barton]

Revision: 3585
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-extensions&revision=3585
Author:   campbellbarton
Date:     2012-07-05 10:25:16 +0000 (Thu, 05 Jul 2012)
Log Message:
-----------
non uniform cell shape, currently only xyz scale.

Modified Paths:
--------------
    trunk/py/scripts/addons/object_fracture_cell/__init__.py
    trunk/py/scripts/addons/object_fracture_cell/fracture_cell_calc.py
    trunk/py/scripts/addons/object_fracture_cell/fracture_cell_setup.py

Modified: trunk/py/scripts/addons/object_fracture_cell/__init__.py
===================================================================
--- trunk/py/scripts/addons/object_fracture_cell/__init__.py	2012-07-05 09:05:22 UTC (rev 3584)
+++ trunk/py/scripts/addons/object_fracture_cell/__init__.py	2012-07-05 10:25:16 UTC (rev 3585)
@@ -40,6 +40,7 @@
                        BoolProperty,
                        IntProperty,
                        FloatProperty,
+                       FloatVectorProperty,
                        EnumProperty)
 
 from bpy.types import Operator
@@ -192,6 +193,14 @@
             default=0.0,
             )
 
+    cell_scale = FloatVectorProperty(
+            name="Scale",
+            description="Scale Cell Shape",
+            size=3,
+            min=0.0, max=1.0,
+            default=(1.0, 1.0, 1.0),
+            )
+
     # -------------------------------------------------------------------------
     # Recursion
 
@@ -330,6 +339,7 @@
         rowsub.prop(self, "source_limit")
         rowsub.prop(self, "source_noise")
         rowsub = col.row()
+        rowsub.prop(self, "cell_scale")
 
         box = layout.box()
         col = box.column()

Modified: trunk/py/scripts/addons/object_fracture_cell/fracture_cell_calc.py
===================================================================
--- trunk/py/scripts/addons/object_fracture_cell/fracture_cell_calc.py	2012-07-05 09:05:22 UTC (rev 3584)
+++ trunk/py/scripts/addons/object_fracture_cell/fracture_cell_calc.py	2012-07-05 10:25:16 UTC (rev 3585)
@@ -21,7 +21,9 @@
 # Script copyright (C) Blender Foundation 2012
 
 
-def points_as_bmesh_cells(verts, points,
+def points_as_bmesh_cells(verts,
+                          points,
+                          points_scale=None,
                           margin_bounds=0.05,
                           margin_cell=0.0):
     from math import sqrt
@@ -29,6 +31,14 @@
     from mathutils import Vector
 
     cells = []
+    
+    '''
+    if points_scale:
+        points_scale = (1.0 / points_scale[0],
+                        1.0 / points_scale[1],
+                        1.0 / points_scale[2],
+                        )
+    '''
 
     points_sorted_current = [p for p in points]
     plane_indices = []
@@ -65,6 +75,20 @@
         for j in range(1, len(points)):
             normal = points_sorted_current[j] - point_cell_current
             nlength = normal.length
+
+            if points_scale is not None:                
+                normal_alt = normal.copy()
+                normal_alt.x *= points_scale[0]
+                normal_alt.y *= points_scale[1]
+                normal_alt.z *= points_scale[2]
+
+                # rotate plane to new distance
+                # should always be positive!! - but abs incase
+                scalar = normal_alt.normalized().dot(normal.normalized())
+                # assert(scalar >= 0.0)
+                nlength *= scalar
+                normal = normal_alt
+
             if nlength > distance_max:
                 break
 

Modified: trunk/py/scripts/addons/object_fracture_cell/fracture_cell_setup.py
===================================================================
--- trunk/py/scripts/addons/object_fracture_cell/fracture_cell_setup.py	2012-07-05 09:05:22 UTC (rev 3584)
+++ trunk/py/scripts/addons/object_fracture_cell/fracture_cell_setup.py	2012-07-05 10:25:16 UTC (rev 3585)
@@ -125,6 +125,7 @@
                           margin=0.0,
                           material_index=0,
                           use_debug_redraw=False,
+                          cell_scale=(1.0, 1.0, 1.0),
                           ):
     
     from . import fracture_cell_calc
@@ -136,7 +137,7 @@
 
     if not points:
         # print using fallback
-        points = _points_from_object(obj, source | {'VERT_OWN'})
+        points = _points_from_object(obj, {'VERT_OWN'})
 
     if not points:
         print("no points found")
@@ -187,7 +188,9 @@
     matrix = obj.matrix_world.copy()
     verts = [matrix * v.co for v in mesh.vertices]
 
-    cells = fracture_cell_calc.points_as_bmesh_cells(verts, points,
+    cells = fracture_cell_calc.points_as_bmesh_cells(verts,
+                                                     points,
+                                                     cell_scale,
                                                      margin_cell=margin)
 
     # some hacks here :S