Method SetSliceOrientation

Interaction/Image/vtkImageViewer2.cxx:260–295

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//------------------------------------------------------------------------------
void vtkImageViewer2::SetSliceOrientation(int orientation)
{
  if (orientation < vtkImageViewer2::SLICE_ORIENTATION_YZ ||
    orientation > vtkImageViewer2::SLICE_ORIENTATION_XY)
  {
    vtkErrorMacro("Error - invalid slice orientation " << orientation);
    return;
  }

  if (this->SliceOrientation == orientation)
  {
    return;
  }

  this->SliceOrientation = orientation;

  // Update the viewer

  int* range = this->GetSliceRange();
  if (range)
  {
    this->Slice = static_cast<int>((range[0] + range[1]) * 0.5);
  }

  this->UpdateOrientation();
  this->UpdateDisplayExtent();

  if (this->Renderer && this->GetInput())
  {
    double scale = this->Renderer->GetActiveCamera()->GetParallelScale();
    this->Renderer->ResetCamera();
    this->Renderer->GetActiveCamera()->SetParallelScale(scale);
  }

  this->Render();
}

//------------------------------------------------------------------------------
void vtkImageViewer2::UpdateOrientation()