From 1b0bdd0444bcdb5726304e5edfdfbd36f9c150f4 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Thu, 5 Jul 2012 07:54:56 +0000
Subject: [PATCH] minor improvement to cell fracture algo.
---
object_fracture_cell/__init__.py | 8 ++++----
object_fracture_cell/fracture_cell_calc.py | 10 +++++++---
2 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/object_fracture_cell/__init__.py b/object_fracture_cell/__init__.py
index d284e205b..0fcf79409 100644
--- a/object_fracture_cell/__init__.py
+++ b/object_fracture_cell/__init__.py
@@ -24,10 +24,10 @@ bl_info = {
"location": "Search > Fracture Object & Add -> Fracture Helper Objects",
"description": "Fractured Object, Bomb, Projectile, Recorder",
"warning": "",
- "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"\
- "Scripts/Object/Fracture",
- "tracker_url": "https://projects.blender.org/tracker/index.php?"\
- "func=detail&aid=21793",
+ "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"
+ "Scripts/Object/Fracture",
+ "tracker_url": "https://projects.blender.org/tracker/index.php?"
+ "func=detail&aid=21793",
"category": "Object"}
diff --git a/object_fracture_cell/fracture_cell_calc.py b/object_fracture_cell/fracture_cell_calc.py
index 3b9e5a16d..d75f6994c 100644
--- a/object_fracture_cell/fracture_cell_calc.py
+++ b/object_fracture_cell/fracture_cell_calc.py
@@ -24,6 +24,7 @@
def points_as_bmesh_cells(verts, points,
margin_bounds=0.05,
margin_cell=0.0):
+ from math import sqrt
import mathutils
from mathutils import Vector
@@ -79,11 +80,14 @@ def points_as_bmesh_cells(verts, points,
if len(plane_indices) != len(planes):
planes[:] = [planes[k] for k in plane_indices]
- distance_max = vertices[0].length
- for k in range(1, len(vertices)):
- distance = vertices[k].length
+ # for comparisons use length_squared and delay
+ # converting to a real length until the end.
+ distance_max = 10000000000.0 # a big value!
+ for v in vertices:
+ distance = v.length_squared
if distance_max < distance:
distance_max = distance
+ distance_max = sqrt(distance_max) # make real length
distance_max *= 2.0
if len(vertices) == 0:
--
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