Example: Plane Data Format
The plane entity consists of two perpendicular unit vectors (e1 and e2), the normal to the plane (e3), and the origin of the plane. The following illustration shows a plane entity.
Data format:
e1[3] | (dbl) | Unit vector in u direction |
e2[3] | (dbl) | Unit vector in v direction |
e3[3] | (dbl) | Normal to the plane |
origin[3] | (dbl) | Origin of the local coordinate system |
Parameterization:
(x, y, z) = u * e1 + v * e2 + origin