+ /// \brief Convert absolute coordinates to relative coordinates
+ virtual void getRelative(double theAbsX, double theAbsY, double& theRelX, double& theRelY);
+ /// \brief Convert relative coordinates to absolute coordinates
+ virtual void getAbsolute(double theRelX, double theRelY, double& theAbsX, double& theAbsY);
+ /// \brief Apply transformation for relative coordinates
+ virtual void transformRelative(double& theX, double& theY);
+