Function TestRenderString

Rendering/Matplotlib/Testing/Cxx/TestRenderString.cxx:16–46

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//------------------------------------------------------------------------------
int TestRenderString(int vtkNotUsed(argc), char* vtkNotUsed(argv)[])
{
  const char* str = "$\\hat{H}\\psi = \\left(-\\frac{\\hbar}{2m}\\nabla^2"
                    " + V(r)\\right) \\psi = \\psi\\cdot E $";

  vtkNew<vtkImageData> image;
  vtkNew<vtkMathTextUtilities> utils;
  utils->SetScaleToPowerOfTwo(false);
  vtkNew<vtkTextProperty> tprop;
  tprop->SetColor(1, 1, 1);
  tprop->SetFontSize(50);

  vtkNew<vtkImageViewer2> viewer;
  utils->RenderString(str, image, tprop, viewer->GetRenderWindow()->GetDPI());

  viewer->SetInputData(image);

  vtkNew<vtkRenderWindowInteractor> iren;
  viewer->SetupInteractor(iren);

  viewer->Render();
  viewer->GetRenderer()->ResetCamera();
  viewer->GetRenderer()->GetActiveCamera()->Zoom(6.0);
  viewer->Render();

  viewer->GetRenderWindow()->SetMultiSamples(0);
  viewer->GetRenderWindow()->GetInteractor()->Initialize();
  viewer->GetRenderWindow()->GetInteractor()->Start();

  return EXIT_SUCCESS;
}