Method FlyToImage

Rendering/Core/vtkRenderWindowInteractor.cxx:468–500

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

  flyTo[0] = x;
  flyTo[1] = y;
  ren->GetActiveCamera()->GetFocalPoint(flyFrom);
  flyTo[2] = flyFrom[2];
  ren->GetActiveCamera()->GetPosition(positionFrom);
  for (i = 0; i < 2; i++)
  {
    d[i] = flyTo[i] - flyFrom[i];
  }
  d[2] = 0.0;
  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;
      position[j] = positionFrom[j] + d[j] * i * delta;
    }
    ren->GetActiveCamera()->SetFocalPoint(focalPt);
    ren->GetActiveCamera()->SetPosition(position);
    ren->GetActiveCamera()->Dolly(this->Dolly / this->NumberOfFlyFrames + 1.0);
    ren->ResetCameraClippingRange();
    this->Render();
  }
}

//------------------------------------------------------------------------------
vtkRenderer* vtkRenderWindowInteractor::FindPokedRenderer(int x, int y)