ISO 10303-214:2010(E)
An External_model is the identification of a model that is described in a Digital_file and by the Cartesian_coordinate_space that is needed to further process the externally described information.
Each External_model is an External_picture or an External_geometric_model.
The data associated with an External_model are the following:
The description specifies additional information about the External_model.
See external_model to multi_language_string for the application assertion.
The description need not be specified for a particular External_model.
If present, there shall be exactly one object that defines the description for an External_model.
The is_defined_as specifies the Digital_file that contains the externally defined geometry information.
See external_model to digital_file for the application assertion.
The is_defined_in specifies the Cartesian_coordinate_space that defines the context for the externally described geometry.
See external_model to cartesian_coordinate_space for the application assertion.
The model_id specifies the identifier of the External_model.
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