5.2 MIM EXPRESS short listing

This clause specifies the EXPRESS schema derived from the mapping table. It uses elements from the common resources or from other application modules and defines the EXPRESS constructs that are specific to this part of ISO 10303.

This clause constitutes the Module Interpreted Module (MIM) of the application module.

This clause also specifies the modifications that apply to the constructs imported from the common resources.

The following restrictions apply to the use, in this schema, of constructs defined in common resources or in application modules:

• use of a supertype entity does not make applicable any of its specializations, unless the specialization is also imported in the MIM schema;
• use of a SELECT type does not make applicable any of its listed types unless the listed type is also imported in the MIM schema.

Short names of entities defined in this schema are described in Annex A. Unambiguous identification of this schema is defined in Annex B.

USE FROM Contextual_shape_positioning_mim;    --  ISO/TS 10303-1027



USE FROM Geometric_model_relationship_mim;    --  ISO/TS 10303-1403



REFERENCE FROM support_resource_schema    --  ISO 10303-41
  (bag_to_set);



REFERENCE FROM representation_schema    --  ISO 10303-43
  (acyclic_representation_relationship);
(*



NOTE 1   The schemas referenced above are specified in the following part of ISO 10303:

Contextual_shape_positioning_mim	ISO/TS 10303-1027
Geometric_model_relationship_mim	ISO/TS 10303-1403
support_resource_schema	ISO 10303-41
representation_schema	ISO 10303-43

NOTE 2   See Annex D, Figures D.1and D.2 for a graphical representation of this schema.

5.2.1 MIM entity definitions

This subclause specifies the MIM entities for this module. The MIM entities and definitions are specified below.

5.2.1.1 axis_placement_2d_3d_mapping   

EXPRESS specification:

*)
ENTITY axis_placement_2d_3d_mapping
  SUBTYPE OF (item_defined_transformation);
  SELF\item_defined_transformation.transform_item_1 : axis2_placement_2d;
  SELF\item_defined_transformation.transform_item_2 : axis2_placement_3d;
END_ENTITY;
(*

Attribute definitions:

transform_item_1: an attribute inherited from the item_defined_transformation shall be redeclared as the axis2_placement_2d for the axis_placement_2d_3d_mapping.

transform_item_2: an attribute inherited from the item_defined_transformation shall be redeclared as the axis2_placement_3d for the axis_placement_2d_3d_mapping.

5.2.1.2 coordinated_geometric_relationship_with_2d_3d_placement_transformation   

EXPRESS specification:

*)
ENTITY coordinated_geometric_relationship_with_2d_3d_placement_transformation
  SUBTYPE OF (shape_representation_relationship, representation_relationship_with_transformation);
  SELF\representation_relationship_with_transformation.transformation_operator : axis_placement_2d_3d_mapping;
WHERE
  WR1: acyclic_representation_relationship(SELF, [SELF\representation_relationship.rep_2], 'REPRESENTATION_SCHEMA.'+'REPRESENTATION');
  WR2: NOT('REPRESENTATION_SCHEMA.DEFINITIONAL_REPRESENTATION_RELATIONSHIP' IN TYPEOF(SELF));
END_ENTITY;
(*

Attribute definitions:

transformation_operator: an attribute inherited from the representation_relationship_with_transformation shall be redeclared as the axis_placement_2d_3d_mapping for the coordinated_geometric_relationship_with_2d_3d_placement_transformation.

Formal propositions:

WR1: The coordinated_geometric_relationship_with_2d_3d_placement_transformation shall not participate in cycles.

WR2: A coordinated_geometric_relationship_with_2d_3d_placement_transformation shall not be a definitional_representation_relationship.

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