Usage: an implementation of this interface is supplied and you must use it as is. You should not reimplement it.
interface CATITPSStraightness
Interface to straightness tolerance.
Role: Objects that implement this typing interface are straightness
tolerances. This type belongs to the form super type.
It defines the capability of a line supposed straight, either extracted from a planar surface or corresponding to the axis of a cylindrical surface, to entirely be within the tolerance zone. This tolerance zone is a space limited with two t-apart parallel lines in the annotation plane or a volume limited with one t-diameter cylinder. A form tolerance is specified without any reference frame.
Normative reference: ISO 1101 section 14.1 and ASME Y14.5M section 6.4.1.
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