ISO 10303-214:2010(E)
A Tolerance_zone_definition is the specification of the boundaries of a Tolerance_zone.
Each Tolerance_zone_definition may be a Projection.
The data associated with a Tolerance_zone_definition are the following:
The first_element specifies the Shape_element that represents the first or, in the case of a cylindrical tolerance zone, the only boundary of the Tolerance_zone_definition.
See tolerance_zone_definition to shape_element for the application assertion.
The is_defining specifies the Tolerance_zone that is specified by the Tolerance_zone_definition.
See tolerance_zone_definition to tolerance_zone for the application assertion.
The second_element specifies the Shape_element that represents the second bounding element.
See tolerance_zone_definition to shape_element for the application assertion.
The second_element need not be specified for a particular Tolerance_zone_definition.
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