Change coordinate system from right to left-handed (change direction of Z axis)

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This example may help AnatomicalOrientation. The top-left cube is left-handed.

If you are changing the handedness of the data then you need to a apply a transform that either reverses the direction of one of the axes, say Z, or swaps two axes e.g swap X and Y.
For example, look at TransformSphere and change aTransform->Scale(1, 1.5, 2); to aTransform->Scale(1, 1.5, -2); thereby changing the data from RH to LH. Now the image is black since the normals are pointing the wrong way because the surface shading uses the right-hand rule. So you need to apply a reverse sense filter:

  transFilter->SetTransform(aTransform);

  vtkNew<vtkReverseSense> reverse;
  reverse->SetInputConnection(transFilter->GetOutputPort());
  reverse->ReverseNormalsOn();

  vtkNew<vtkElevationFilter> colorIt;
  //colorIt->SetInputConnection(transFilter->GetOutputPort());
  colorIt->SetInputConnection(reverse->GetOutputPort());