SMC_InvCoordinateTransformation3D (FB)

FUNCTION_BLOCK SMC_InvCoordinateTransformation3D

This function block will calculate the coordinates of a point given in respect of the old coordinate system and transformed to the new coordinate system. For this purpose, the inverse coordinate transformation is defined by the translation of the origin and the new unit vectors (given in respect of the old coordinate system).

(note: That this FB only works correct, if the vectors vX, vY and vZ are perpendicular to each other)

For detailed information of transformation modules see the survey on Coordinate Transformations.

InOut:

Scope	Name	Type	Comment
Input	piIn	SMC_PosInfo	Point in old coordinates
	vX	SMC_Vector3D	Unit vector of new coordinate system
	vY	SMC_Vector3D	Unit vector of new coordinate system
	vZ	SMC_Vector3D	Unit vector of new coordinate system
	vTranslation	SMC_Vector3D	Translation vector for origin = origin of new coordinate system in old coordinates
Output	piOut	SMC_PosInfo	Point in new coordinates.