diff --git a/EGkUserObj.h b/EGkUserObj.h
index 79daf65..36fe249 100644
--- a/EGkUserObj.h
+++ b/EGkUserObj.h
@@ -33,8 +33,10 @@ class __declspec( novtable) IUserObj
       virtual bool ToSave( void) const { return false ; }
       virtual bool Save( int nBaseId, STRVECTOR& vString) const { return false ; }
       virtual bool Load( const STRVECTOR& vString, int nBaseGdbId) { return false ; }
-   public :                 // show & transform geometry (only if with a GeoObj)
+   public :                 // show & texture (only if with a GeoObj)
       virtual bool GetDrawPolyLines( POLYLINELIST& lstPL) const { return false ; }
+      virtual bool GetDimensions( double& dDimX, double& dDimY) const { return false ; }
+   public :                 // transform geometry (only if with a GeoObj)
       virtual bool Translate( const Vector3d& vtMove) { return true ; }
       virtual bool Rotate( const Point3d& ptAx, const Vector3d& vtAx, double dAngDeg) { return true ; }
       virtual bool Rotate( const Point3d& ptAx, const Vector3d& vtAx, double dCosAng, double dSinAng) { return true ; }