changePointsSize  422 modules/viz/src/vtk/vtkVizInteractorStyle.cpp             changePointsSize(+1.f);
changePointsSize  432 modules/viz/src/vtk/vtkVizInteractorStyle.cpp            changePointsSize(-1.f);
changePointsSize   96 modules/viz/src/vtk/vtkVizInteractorStyle.hpp             void changePointsSize(float delta);