- inline wxDouble GetDistance( const wxPoint2DDouble &pt );
- inline wxDouble GetDistanceSquare( const wxPoint2DDouble &pt );
- inline wxDouble GetDotProduct( const wxPoint2DDouble &vec );
- inline wxDouble GetCrossProduct( const wxPoint2DDouble &vec );
+ inline wxDouble GetDistance( const wxPoint2DDouble &pt ) const;
+ inline wxDouble GetDistanceSquare( const wxPoint2DDouble &pt ) const;
+ inline wxDouble GetDotProduct( const wxPoint2DDouble &vec ) const;
+ inline wxDouble GetCrossProduct( const wxPoint2DDouble &vec ) const;