Hi Bruno, On 11 April 2016 at 16:21, Bruno Oliveira <[email protected]> wrote:
> How do I allow my mouse manipulator (actually an > osg::TrackballManipulator) to allow moving in 2D plane only? > > This is for vieweing an image and I want something similar to google maps > or so > The TrackballManipulator is a 3D manipulator and has no support for constraining to a 3D plane. If you want 2D movement then you will need to write your own "MapManipulator" or just set the the Viewer's master Camera's ViewMatrix directly with the frame loop. Robert.
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