CalcHesseRepresentation (FB)

FUNCTION_BLOCK CalcHesseRepresentation

This function block will retrieve the normal form (due to Hesse) of a plane in the three dimensional space: , where is the normed normal on the plane and a point on the plane. The plane is originally specified by three of its points.

InOut:

Scope Name Type Comment Input vP1 POINTER TO Vector3D point on plane vP2 POINTER TO Vector3D point on plane vP3 POINTER TO Vector3D point on plane Output plane PLANE_H normal form of plane xError BOOL Error flag TRUE: If input points are collinear