From 879a753ee2434f0f5c0724bf631756e0a8a5bd80 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Sat, 10 Nov 2001 15:46:05 +0000
Subject: [PATCH] Fixed osgUtil::Optimizer::FlatternStaticTransformsVisitor so
 that the apply(osg::LOD) scaled the ranges in addition to transform the
 center point and children.

---
 src/osgUtil/Optimizer.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/osgUtil/Optimizer.cpp b/src/osgUtil/Optimizer.cpp
index db6ff5d8a..b21c1eb51 100644
--- a/src/osgUtil/Optimizer.cpp
+++ b/src/osgUtil/Optimizer.cpp
@@ -329,7 +329,23 @@ void Optimizer::FlattenStaticTransformsVisitor::apply(osg::LOD& lod)
 {
     if (!_matrixStack.empty())
     {
-        lod.setCenter(lod.getCenter()*_matrixStack.back());
+        osg::Matrix& matrix = _matrixStack.back();
+        osg::Matrix matrix_no_trans = matrix;
+        matrix_no_trans.setTrans(0.0f,0.0f,0.0f);
+        
+        osg::Vec3 v111(1.0f,1.0f,1.0f);
+        osg::Vec3 new_v111 = v111*matrix_no_trans;
+        float ratio = new_v111.length()/v111.length();
+
+        // move center point.
+        lod.setCenter(lod.getCenter()*matrix);
+        
+        // adjust ranges to new scale.
+        for(int i=0;i<lod.getNumRanges();++i)
+        {
+            lod.setRange(i,lod.getRange(i)*ratio);
+        }
+        
         lod.dirtyBound();
     }
     traverse(lod);