get the current orientaion of an actor

[Bill Lorensen]

<x-flowed>Look in vtk/examplesTcl/savecamera.tcl to see how to save the camera settings.

Bill

At 09:41 AM 7/20/99 -0700, Li Gao wrote:
>Hello,
>
>I have some difficulties on getting the current orientation of an actor. My
>purpose was to rotate an actor to a specific angle of interest and record
>the orientaion so that I can simply display the subsequent actors at that
>angle later without rotating each of them. What I did is the following:
>
>// First, after rotating the first actor, the orientation is saved in this
>way. Am I right?
>void CVtkView::RecordOrientaion()
>{
>         if (ren)
>         {
>                 double* angles = ren->GetActiveCamera()->GetOrientation();
>                 myElevation = angles[0];
>                 myRoll = angles[2];
>                 myAzimuth = -angles[1];
>         }
>}
>
>// Then, I used the following section to force actor to a saved orientation.
>Am I right?
>void CVtkView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint)
>{
>         // initialization stuff and adding actors here
>         // ...
>         //
>
>         // set up the view angle
>         this->ren->ResetCamera();
>         this->ren->GetActiveCamera()->SetViewUp(0, 1, 0);
>         this->ren->GetActiveCamera()->SetViewPlaneNormal(0, 0, 1);
>         this->ren->GetActiveCamera()->Azimuth( myAzimuth );
>         this->ren->GetActiveCamera()->Roll( myRoll );
>         this->ren->GetActiveCamera()->Elevation( myElevation );
>         this->ren->GetActiveCamera()->OrthogonalizeViewUp();
>         this->ren->ResetCamera();
>
>         CView::OnUpdate(pSender, lHint, pHint);
>}
>
>The above code only works under certain orientation (it worked under
>vtk1.3). Could you help me find
>out what was wrong? Thank you very much.
>
>Li




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</x-flowed>