\pstGeonode[PosAngle={-135,-90,180}]%
            {O}(1,0.5){I}(0.5,2){J}
\pstLineAB[nodesep=10]{O}{I}
\pstLineAB[nodesep=10]{O}{J}
\multips(-5,-2.5)(1,0.5){11}{\psline(0,-.15)(0,.15)}
\multips(-2,-8)(0.5,2){9}{\psline(-.15,0)(.15,0)}
\psset{linestyle=dotted}%
\multips(-5,-2.5)(1,0.5){11}{\psline(-10,-40)(10,40)}
\multips(-2,-8)(0.5,2){9}{\psline(-10,-5)(10,5)}
\psset{PointSymbol=x, linestyle=solid}
\pstOIJGeonode[PosAngle={-90,0}, CurveType=curve,
               linecolor=red]
  (3,1){A}{O}{I}{J}(-2,1){B}(-1,-1.5){C}(2,-1){D}
