docs: protected void enlarge( Quadrilateral_F64 corners, double scale ) {
  
  		UtilPolygons2D_F64.center(corners, center);
  
  		extend(center,corners.a,scale);
  		extend(center,corners.b,scale);
  		extend(center,corners.c,scale);
  		extend(center,corners.d,scale);
  	}