/// \param theShapes the list of result shapes
void addPlane(double theX, double theY, double theZ,
std::list<boost::shared_ptr<GeomAPI_Shape> >& theShapes) const;
/// \param theShapes the list of result shapes
void addPlane(double theX, double theY, double theZ,
std::list<boost::shared_ptr<GeomAPI_Shape> >& theShapes) const;