Added check against the NodePath being empty.

2011-02-11 09:18:36 +00:00
parent a55c3be960
commit e3225a2c4b
1 changed files with 1 additions and 1 deletions
--- a/src/osgGA/NodeTrackerManipulator.cpp
+++ b/src/osgGA/NodeTrackerManipulator.cpp
@@ -167,7 +167,7 @@ void NodeTrackerManipulator::computeNodeCenterAndRotation(osg::Vec3d& nodeCenter
    computeNodeWorldToLocal(worldToLocal);

    osg::NodePath nodePath;
-    if (_trackNodePath.getNodePath(nodePath))
+    if (_trackNodePath.getNodePath(nodePath) && !nodePath.empty())
        nodeCenter = osg::Vec3d(nodePath.back()->getBound().center())*localToWorld;
    else
        nodeCenter = osg::Vec3d(0.0f,0.0f,0.0f)*localToWorld;