Changeset 4880 for OpenSceneGraph/trunk/examples/osgkeyboardmouse/osgkeyboardmouse.cpp

Timestamp:

12/05/05 11:08:52 (7 years ago)

Author:

robert

Message:

From Geoff Michel, Fix to prevent Producer::Trackball being set up with a negative
radius.

Files:

• OpenSceneGraph/trunk/examples/osgkeyboardmouse/osgkeyboardmouse.cpp (modified) (1 diff)

OpenSceneGraph/trunk/examples/osgkeyboardmouse/osgkeyboardmouse.cpp

@@ -98 +98 @@
         {
             const osg::BoundingSphere& bs = scene->getBound();
-            _trackBall->reset();
-            _trackBall->setOrientation( Producer::Trackball::Z_UP );
-            _trackBall->setDistance(bs.radius()*2.0f);
-            _trackBall->translate(-bs.center().x(),-bs.center().y(),-bs.center().z());
+            if (bs.valid())
+            {
+                _trackBall->reset();
+                _trackBall->setOrientation( Producer::Trackball::Z_UP );
+                _trackBall->setDistance(bs.radius()*2.0f);
+                _trackBall->translate(-bs.center().x(),-bs.center().y(),-bs.center().z());
+            }
         }
     }