Hi Danny;

You mean it is not working or working but not as expected? I saw a problem
you multiply matrices wrong order. You always obey the TRS rule. First Scale
then Rotate and lastly Translate. But as I see you have done wrong order for

myCameraMatrix = cameraRotation * cameraTrans;

HTH.
Regards.

Ümit Uzun


2009/7/21 Danny Lesnik <danny...@walla.co.il>

> Hi Jean-Sébastien,
>
> Thank you for your reply i'm trying to do it by first method I implemented
> some code but it looks like this code does nothing:
>
> bool CameraMover::handle(const osgGA::GUIEventAdapter&
> ea,osgGA::GUIActionAdapter& us)
> {
> osg::Matrixd myCameraMatrix;
> osg::Matrixd cameraRotation;
> osg::Matrixd cameraTrans;
> cameraRotation.makeRotate(
> osg::DegreesToRadians(0.0), osg::Vec3(0,1,0), // roll
> osg::DegreesToRadians(60.0), osg::Vec3(1,0,0) , // pitch
> osg::DegreesToRadians( 45.0), osg::Vec3(0,0,1) ); // heading
> cameraTrans.makeTranslate( 1,5,1 );
> myCameraMatrix = cameraRotation * cameraTrans;
> osg::Matrixd i = myCameraMatrix.inverse(myCameraMatrix);
> osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>( &us );
>
> ...........
>
> switch(ea.getKey())
>  {
> case osgGA::GUIEventAdapter::KEY_Down:
>
>  
> viewer->getCamera()->setViewMatrix(i*osg::Matrix::rotate(-(osg::PI_2),1,0,0));
>  return false;
>  break;
>
> ......
>  }
>
> }
>
> int main()
> {
> ......
>
> viewer.addEventHandler(new CameraMover);
> viewer.realize();
> while( !viewer.done() )
> {
>      viewer.frame();
> }
>
>
> Could you tell me please why my event is not working?
>
> Thank you!
>
> Cheers,
> Danny
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=15152#15152
>
>
>
>
>
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