Hi! When I try to run the test_shapes example in pcl_visualization the application crashes with a seg fault. gdb backtrace is the following: Program received signal SIGSEGV, Segmentation fault. pcl_visualization::PCLVisualizer::createActorFromVTKDataSet (this=0xbfffeeac, data=..., actor=...) at /opt/ros/cturtle/stacks/point_cloud_perception/pcl_visualization/src/libpcl_visualization/pcl_visualizer.cpp:661 661 scalars->GetRange (minmax); (gdb) bt #0 pcl_visualization::PCLVisualizer::createActorFromVTKDataSet ( this=0xbfffeeac, data=..., actor=...) at /opt/ros/cturtle/stacks/point_cloud_perception/pcl_visualization/src/libpcl_visualization/pcl_visualizer.cpp:661 #1 0x0804bd9f in pcl_visualization::PCLVisualizer::addPolygon ( argc=1, argv=0xbffff104) at /opt/ros/cturtle/stacks/point_cloud_perception/pcl_visualization/src/libpcl_visualization/pcl_visualizer.hpp:549 #2 pcl_visualization::PCLVisualizer::addPolygon (argc=1, argv=0xbffff104) at /opt/ros/cturtle/stacks/point_cloud_perception/pcl_visualization/src/libpcl_visualization/pcl_visualizer.hpp:571 #3 main (argc=1, argv=0xbffff104) at /opt/ros/cturtle/stacks/point_cloud_perception/pcl_visualization/src/test_shapes.cpp:28 The same happens when i try to use the addLine or addSphere function. Can you tell me how to fix this? Best regards, Georg -- Dipl.-Ing. Georg Arbeiter, Fraunhofer IPA Robotersysteme Nobelstrasse 12, 70569 Stuttgart Telefon 0711-970-1299, Fax 0711-970-1008 mailto:georg.arbeiter@ipa.fraunhofer.de http://ipa.fraunhofer.de