[vtkusers] Camera movement from button click

[Dženan Zukić]

vis is QVTK control. You need to do something maybe similar, but the main
thing you have to calculate differently is eye position (move eye position
with button clicks).
void MainWindow::defaultCameraPos()
{
    VisualizingImageType::PointType p;
    unsigned
xsize=logic->visualizing->GetLargestPossibleRegion().GetSize(0),

 ysize=logic->visualizing->GetLargestPossibleRegion().GetSize(1),

 zsize=logic->visualizing->GetLargestPossibleRegion().GetSize(2);
    VisualizingImageType::IndexType ind;

    ind[0]=xsize/2; ind[2]=zsize/2;
    ind[1]=0;
    logic->visualizing->TransformIndexToPhysicalPoint(ind, p);
    vec3 top(p[0], p[1], p[2]);

    ind[0]=xsize-1; ind[1]=ysize/2; ind[2]=zsize/2;
    logic->visualizing->TransformIndexToPhysicalPoint(ind, p);
    vec3 right(p[0], p[1], p[2]);

    ind[0]=xsize/2; ind[1]=ysize/2; ind[2]=zsize/2;
    logic->visualizing->TransformIndexToPhysicalPoint(ind, p);
    vec3 center(p[0], p[1], p[2]);

    vec3 up(top-center), eye((right-center)^up); //view from left
    vtkCamera
*cam=vis->GetRenderWindow()->GetRenderers()->GetFirstRenderer()->GetActiveCamera();
    cam->SetPosition(eye[0], eye[1], eye[2]);
    cam->SetViewUp(up[0], up[1], up[2]);

vis->GetRenderWindow()->GetRenderers()->GetFirstRenderer()->ResetCamera();
}

On Sat, Nov 5, 2011 at 21:46, Claire.Fanny <Claire.Fanny1995 at gmail.com>wrote:

> Hi iam Claire well from subject of this email i know you all better
> understand what i need to do,
> what i want when i click on button so camera automatically move in clock
> wise direction and another button for anti clock wise so please guide me
> how
> can i achieve that bit.
>
>
> Regards
>
> Claire Francis
>
> --
> View this message in context:
> http://vtk.1045678.n5.nabble.com/Camera-movement-from-button-click-tp4967441p4967441.html
> Sent from the VTK - Users mailing list archive at Nabble.com.
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