<div dir="ltr"><div>Hi Becky,</div><div><br></div><div>I managed to change the camera position using a manipulator called controller.<br></div><div><br></div><div>    viewer.setCameraManipulator(controller);<br>    viewer.realize();<br>    // osg::Matrix matrix;<br>    // matrix.makeLookAt( osg::Vec3(), osg::Vec3(), osg::Vec3() );<br>    osg::Quat quad;<br>    // matrix.get(quad);<br>    controller->setTransformation(osg::Vec3(-54.4f,-14.3f,80.0f), quad );<br>    while ( !viewer.done() )<br>    {<br>        viewer.frame();<br>    }<br>    return 0;<br></div><div><br></div><div>The commented lines were not necessary for me, but may be in other situations.</div><div><br></div><div>Best,</div><div>Rodrigo.<br></div><div><br></div><br>On Tuesday, April 1, 2014 at 6:37:24 AM UTC-3, ying song wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Hi,
<br>
<br>I draw a box using addDrawable. Then I want to change the position and rotation angle of the camera  by:
<br>
<br>viewer->getCamera()-><wbr>setViewMatrix(<wbr>cameraTranslationMatrix);
<br>
<br>But actually it makes no change to the camera. The cube is still in the center of the screen after run the scene.
<br>
<br>I also tried to update the frame by using the following code, but also failed:
<br>
<br>while(!viewer->done()) 
<br>{ 
<br>        viewer->getCamera()-><wbr>setViewMatrixAsLookAt(eye,<wbr>center,up);
<br>        viewer->frame(); 
<br>} 
<br>
<br>
<br>Would anyone tell me what could I do to move the camera?
<br>
<br>Thank you!
<br>
<br>Cheers,
<br>Becky
<br>
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