/**
  * Get the dash phase. Use associated <code>ContourLineAttribute</code> if it exists and has
  * dashPhaseOverrideen set to <code>false</code>.
  */
 public float getDashPhase() {
   if (attr_ != null && attr_.isDashPhaseOverridden()) {
     return attr_.getDashPhase();
   } else {
     return super.getDashPhase();
   }
 }