Hi, I am trying to implement a KyeboardManipulator for translating, scaling and rotating 3D models via keyboard, similar to the TrackballManipulator. I am surprised that osg does not have this already.
I wrote a keyboard manipulator class to at least zoom in and zoom out and translate the model. However I am having a hard time getting it to work with the Trackball Manipulator. Once I update the view matrix via keyboard, the TrackballManipulator does not resume from there. Obviously, unless told, it has no way of figuring this out by itself. So I tried to find some function which will cause the TrackballManipulator to update its state based upon the current view matrix. But I couldn't find any function which does this. setByMatrix does not seem to work the way I expected. The TrackballManipulator goes bonkers once I update model via keyboard and use setByMatrix. It does not allow the model to be rotated properly afterwards. Somehow the rotation axis changes and a small mouse movement causes it to pan the model rather than rotate it. Once I manipulate model via keyboard, what steps are needed for me to update the TrackballManipulator to continue from there instead of resetting the model position.? ... Thank you! Cheers, Aviral Goel ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62892#62892 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
