Point4D

This class represents the concept Point4D.

Class

class GeometricItem
   relation material
      range Material, cardinality [0, 1]
class Point
class Point4D
   relation normal
      range Vector3, cardinality [0, 1]
   relation point
      range Point3D, cardinality [1, 1]
   relation tangent
      range Vector3, cardinality [0, 1]