From 8d325c24ff12fce0cb4e80942f974ddc8a1cea3b Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 8 Jul 2004 22:28:15 +0000
Subject: [PATCH] Added new coputeActiveCooridnateSystemNodePath method

---
 include/osgProducer/Viewer |  2 ++
 src/osgProducer/Viewer.cpp | 18 +++++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/include/osgProducer/Viewer b/include/osgProducer/Viewer
index 7b9a7980c..efbbc057a 100644
--- a/include/osgProducer/Viewer
+++ b/include/osgProducer/Viewer
@@ -104,6 +104,8 @@ class OSGPRODUCER_EXPORT Viewer : public OsgCameraGroup, public osgGA::GUIAction
 
         typedef std::vector< osg::ref_ptr<osg::Node> > RefNodePath;
         
+        void computeActiveCoordindateSystemNodePath();
+
         void setCoordindateSystemNodePath(const RefNodePath& nodePath) { _coordinateSystemNodePath = nodePath; }
         
         void setCoordindateSystemNodePath(const osg::NodePath& nodePath);
diff --git a/src/osgProducer/Viewer.cpp b/src/osgProducer/Viewer.cpp
index 07edc5259..5d4d679cb 100644
--- a/src/osgProducer/Viewer.cpp
+++ b/src/osgProducer/Viewer.cpp
@@ -142,7 +142,7 @@ class CollectedCoordinateSystemNodesVisitor : public osg::NodeVisitor
 public:
 
     CollectedCoordinateSystemNodesVisitor():
-        NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
+        NodeVisitor(osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN) {}
         
         
     virtual void apply(osg::Node& node)
@@ -309,10 +309,8 @@ void Viewer::setCoordindateSystemNodePath(const osg::NodePath& nodePath)
               std::back_inserter(_coordinateSystemNodePath));
 }
 
-void Viewer::updatedSceneData()
+void Viewer::computeActiveCoordindateSystemNodePath()
 {
-    OsgCameraGroup::updatedSceneData();
-    
     // now search for CoordinateSystemNode's for which we want to track.
     osg::Node* subgraph = getTopMostSceneData();
     
@@ -324,8 +322,18 @@ void Viewer::updatedSceneData()
         if (!ccsnv._pathToCoordinateSystemNode.empty())
         {
            setCoordindateSystemNodePath(ccsnv._pathToCoordinateSystemNode);
+           return;
         }
-    }    
+    }  
+    // otherwise no node path found so reset to empty.
+    setCoordindateSystemNodePath(osg::NodePath());
+}
+
+void Viewer::updatedSceneData()
+{
+    OsgCameraGroup::updatedSceneData();
+    
+    computeActiveCoordindateSystemNodePath();
 }
 
 void Viewer::setKeyboardMouse(Producer::KeyboardMouse* kbm)