void setTriedron(VTKViewer_Trihedron* theTrihedron);
void setPreselectionProp(const double& theRed = 0,
const double& theGreen = 1,
void setTriedron(VTKViewer_Trihedron* theTrihedron);
void setPreselectionProp(const double& theRed = 0,
const double& theGreen = 1,