Method FlyTo

Rendering/Core/vtkRenderWindowInteractor.cxx:436–465

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//------------------------------------------------------------------------------
void vtkRenderWindowInteractor::FlyTo(vtkRenderer* ren, double x, double y, double z)
{
  double flyFrom[3], flyTo[3];
  double d[3], focalPt[3];
  int i, j;

  flyTo[0] = x;
  flyTo[1] = y;
  flyTo[2] = z;
  ren->GetActiveCamera()->GetFocalPoint(flyFrom);
  for (i = 0; i < 3; i++)
  {
    d[i] = flyTo[i] - flyFrom[i];
  }
  double distance = vtkMath::Normalize(d);
  double delta = distance / this->NumberOfFlyFrames;

  for (i = 1; i <= NumberOfFlyFrames; i++)
  {
    for (j = 0; j < 3; j++)
    {
      focalPt[j] = flyFrom[j] + d[j] * i * delta;
    }
    ren->GetActiveCamera()->SetFocalPoint(focalPt);
    ren->GetActiveCamera()->Dolly(this->Dolly / this->NumberOfFlyFrames + 1.0);
    ren->GetActiveCamera()->OrthogonalizeViewUp();
    ren->ResetCameraClippingRange();
    this->Render();
  }
}

//------------------------------------------------------------------------------
void vtkRenderWindowInteractor::FlyToImage(vtkRenderer* ren, double x, double y)