C.27.2.1 Points Macro Attribute Descriptions

All Attributes within this module containing points or vectors are in x-y-z order. If multiple elements are encoded, the ordering is x 1 ,y 1 ,z 1 ,…,x n ,y n ,z n .

The points are in the coordinate system identified by the Frame of Reference UID (0020,0052). To map these points into the coordinate system of another SOP Instance a Spatial Registration Instance can be used.

C.27.2.1.1 Point Coordinates Data

When referencing individual points the index of the first point shall be 1.