anchor.diff:   agg_conv_stroke ,
    agg_conv_transform ,
    agg_conv_curve ,
  + agg_conv_dash ,
    agg_rendering_buffer ,
    agg_renderer_base ,
    agg_renderer_scanline ,
  
positive.code: 
     m_convCurve  : conv_curve;
     m_convStroke : conv_stroke;
  
     m_pathTransform ,m_strokeTransform : conv_transform;
  
  
negative.code: 
   m_convCurve.Destruct;
   m_convStroke.Destruct;
   m_convDash.Destruct;
  
   {$IFNDEF AGG2D_NO_FONT}
   m_fontEngine.Destruct;
  