I have solve this problem myself。 this is because I did not deal the VTP event response and OSG event response Appropriately. thank you all the same。
在 2010年6月25日 上午11:14，tang qingyuan <[email protected]>写道： > > > Hello, > > I want to use osg Camera Manipulators in VTP. now ，when I add models > like cow.osg to wxEnviro-OSG with osgGA::TrackballManipulator() ,It looks > OK. But when I Import VTP data, I find that I can not zoom in/out the scene > with right mouse button,while rotate the scene is ok with Left mouse button. > can somebody give some advise? > Thank you ! > > Tang , China > > >
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