70    virtual uint 
locality() const QWT_OVERRIDE;
 
   72    virtual QPainterPath painterPath( const QPolygonF& ) const QWT_OVERRIDE;
 
   73    virtual 
QVector< QLineF > bezierControlLines( const QPolygonF& ) const QWT_OVERRIDE;
 
   77    virtual 
QVector< 
double > slopes( const QPolygonF& ) const QWT_OVERRIDE;