Hi Dorian, nice work!

Regarding the assertion on reopening the rviz_qt plugin:

Ogre has lots of "Singleton" (i.e. weakly-disguised global) objects.  I haven't looked into the details yet, but your error message indicates that the singleton for the Ogre::LogManager is being initialized every time the rviz_qt plugin is opened, rather than just the first time it is opened.  There may be lots of similar problems.  You are doing the first test of the rviz_qt library outside of the rviz_qt binary. :)

Dave

On Fri, Dec 2, 2011 at 8:45 AM, Dorian Scholz <scholz@sim.tu-darmstadt.de> wrote:
Hi Dave,

these are great news!
I tested it today and it seems to work fine.
So I went on and made a first simple integration as a rosgui plugin.
The plugin just loads the rviz_qt lib, instantiates the VisualizationFrame and puts it into a dockwidget for rosgui.
The code is in the rosgui git and a screenshot of it running next to some other plugins can be seen here:
http://img18.imageshack.us/img18/8414/rosguirviz.png

I came across one problem though. When I closed the plugin and reopened it, an assertion is failing:
python: /tmp/buildd/ros-electric-visualization-common-1.6.2/debian/ros-electric-visualization-common/opt/ros/electric/stacks/visualization_common/ogre/build/ogre_src_v1-7-3/OgreMain/include/OgreSingleton.h:80: Ogre::Singleton<T>::Singleton() [with T = Ogre::LogManager]: Assertion `!ms_Singleton' failed.
Aborted
I have not yet investigated this any further. I'll file a bug report when I know more...

Cheers,
Dorian



On 12/01/2011 06:29 PM, Dave Hershberger wrote:
Rviz is moving from the wxWidgets library to the Qt library as of the ROS Fuerte release.  This transition to Qt will improve RViz compatibility on more platforms and better integrate with future GUI tools.  For more information on the motivation for these changes, please refer to the RViz and ROS GUI SIGs:

http://ros.org/wiki/fuerte/Planning/rviz
http://ros.org/wiki/fuerte/Planning/ROS%20GUI

This is a fairly big change to the code.  The internal plugin API is changed and the Python API will be different (when I get it implemented).  The GUI appears and behaves mostly the same as the wx version, most of the differences coming from the differences in style between wx and Qt and not from intentional changes.  For a list of major changes, see visualization_experimental/ChangeList.

An early but fairly complete, version of the new code is available in the temporary "visualization_experimental" stack, which works with ROS Electric.  It is available in the ros-electric-visualization-experimental debian package.  This version does not have python support implemented yet, but all the built-in display types, tools, and view controllers work.   I encourage rviz users to try the new version (called rviz_qt for now) before Fuerte so I can fix bugs and make the transition as smooth as possible.

Please report bugs and feature requests to the same place as usual for rviz, but with "qt" in the keywords field, like so: report a bug, request a feature, list existing tickets.

Thanks,
Dave


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-- 
Dipl.-Inform. Dorian Scholz         E-Mail:scholz(at)sim.tu-darmstadt.de
Simulation, Systems Optimization    Phone:  +49 (0) 6151 16-4811
and Robotics Group                  Fax:    +49 (0) 6151 16-6648
Technische Universität Darmstadt    http://www.sim.tu-darmstadt.de
Hochschulstr. 10                    D-64289 Darmstadt, Germany

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