From fae2416584610c1d78c20a9ab0af9e8ce2ae3a7c Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 2 Nov 2004 17:04:06 +0000
Subject: [PATCH] Added debugging messages to setTrackerNode

---
 src/osgGA/NodeTrackerManipulator.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/osgGA/NodeTrackerManipulator.cpp b/src/osgGA/NodeTrackerManipulator.cpp
index 70257b42d..da340d406 100644
--- a/src/osgGA/NodeTrackerManipulator.cpp
+++ b/src/osgGA/NodeTrackerManipulator.cpp
@@ -74,13 +74,24 @@ void NodeTrackerManipulator::setNode(osg::Node* node)
 
 void NodeTrackerManipulator::setTrackNode(osg::Node* node)
 {
+    if (!node)
+    {
+        osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*):  Unable to set tracked node due to null Node*"<<std::endl;
+        return;
+    }
+
     CollectParentPaths cpp;
     node->accept(cpp);
 
     if (!cpp._nodePaths.empty())
     {
+        osg::notify(osg::INFO)<<"NodeTrackerManipulator::setTrackNode(Node*): Path set"<<std::endl;
         _trackNodePath = cpp._nodePaths[0];
     }
+    else
+    {
+        osg::notify(osg::NOTICE)<<"NodeTrackerManipulator::setTrackNode(Node*): Unable to set tracked node due to empty parental path."<<std::endl;
+    }
 }
 
 const osg::Node* NodeTrackerManipulator::getNode() const