/*
* This class can be used to prevent drawing of mappers' content (due to an
* empty definition of GEOM_PainterPolyDataMapper::RenderPiece(...) method).
* It is used as poly data mapper in GEOM_Actor class.
*/
/*
* This class can be used to prevent drawing of mappers' content (due to an
* empty definition of GEOM_PainterPolyDataMapper::RenderPiece(...) method).
* It is used as poly data mapper in GEOM_Actor class.
*/