Collection<vtkProp> selectedActors = AdaptationUtils.adaptToCollection(s, vtkProp.class);
if (selectedActors.size() > 0) {
for (vtkProp a : selectedActors) {
Collection<vtkProp> selectedActors = AdaptationUtils.adaptToCollection(s, vtkProp.class);
if (selectedActors.size() > 0) {
for (vtkProp a : selectedActors) {