: GM_OrientableSurfacehttp://def.isotc211.org/iso19107/2003/GeometricPrimitive# Create a prefix for http://def.isotc211.org/iso19107/2003/GeometricPrimitive# Hit Enter to save Double click to create a prefix | skos:definition | GM_OrientableSurface consists ...... (p) .eq. - self.upNormal(p))}; | graph:default |