Hi, Everyone:
I am a total begginer user of OSG for 3 days.
How can i enable the auto-rotate effect on a TrackballManipulator?
I have attached a osgViewer::viewer to a window on Win32.( windiow+MFC
) by following code.
*
viewer = new osgViewer::Viewer;
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new
osg::GraphicsContext::Traits;
traits->x = 0;
traits->y = 0;
traits->width = rc.Width();
traits->height = rc.Height();
.........
/////////////////////////////////////////////////////////////////////////////////
osg::ref_ptr<osgViewer::GraphicsWindowWin32::WindowData> wdata = new
osgViewer::GraphicsWindowWin32::WindowData( GetSafeHwnd() );
traits->inheritedWindowData = wdata.get();
osg::ref_ptr<osg::GraphicsContext> gc =
osg::GraphicsContext::createGraphicsContext(traits.get());
if ( gc.valid() ) {
viewer->getCamera()->setGraphicsContext(gc.get());
viewer->getCamera()->setViewport(new osg::Viewport(0,0, traits->width,
traits->height));
}
............................................................
///////////////////////////////////////////////////////////////////////////////////////////////
viewer->setSceneData( createGeode().get() );
viewer->setCameraManipulator(new osgGA::TrackballManipulator);
viewer->addEventHandler(new osgViewer::StatsHandler);
viewer->realize();
//========
*
but I cannot enable the Node "viewer" to auto-rotate just as the
demos in the tutorial on site of "www.openscenegraph.org"on the events of
mouseButtonPress(x,y,1) or mouseButtonPress(x,y,3) and
mouseButtonRelease(x,y,1) or mouseButtonRelease(x,y,3).
what's the problem in the code? Thanks!
xiaodong
--
xiaodong Wu.
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