ISO 10303-214:2010(E)
A Constructive_geometric_element is an element of a Constructive_geometry.
The data associated with a Constructive_geometric_element are the following:
The description specifies the meaning of the Constructive_geometric_element.
EXAMPLE The description may be, e.g., 'rotation axis' or 'mirroring plane'.
See constructive_geometric_element to multi_language_string for the application assertion.
The description need not be specified for a particular Constructive_geometric_element.
If present, there shall be exactly one object that defines the description for a Constructive_geometric_element.
The element specifies the geometric element that serves as a Constructive_geometric_element.
See constructive_geometric_element to axis_placement, constructive_geometric_element to curve, constructive_geometric_element to face, constructive_geometric_element to oriented_edge_curve, constructive_geometric_element to point, constructive_geometric_element to surface, and constructive_geometric_element to vertex_point for the application assertions.
There shall be exactly one object that defines the element for a Constructive_geometric_element.
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