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The minimum number of points required to measure each feature is:
ARC........................3   CYLRADSEGMNT....6   LINE.......................2   SPHERE................. 4
CIRCLE...................3   EDGEPT....1 (exactly)   PARPLN................. 4   SPHRADSEGMNT.. 4
CONE......................6   ELLIPS....................5   PLANE....................3   SYMPLN................. 6
CONRADSEGMNT...6   ELONGCYL.............9   POINT.......1 (exactly)   TORUS................... 9
CPARLN..................5   GCURVE.................2   RCTNGL................. 9   TORRADSEGMNT.. 9
CYLNDR..................6   GSURF....................3   REVSURF............... 6
A minimum number of nine points are required to measure a right rectangular prism, RCTNGL: three points for
the first plane (primary), two for the second (secondary) and one point for each plane thereafter.   Refer to
(Figure B.8 ! Constructed rectangle).

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