Application module: Geometric model 2d 3D relationship ISO/TS 10303-1404:2018-11(E)
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Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
    3.1 Terms and definitions
    3.2 Abbreviated terms

4 Information requirements
   4.1 Required AM ARMs
   4.2 ARM entity definitions
5 Module interpreted model
   5.1 Mapping specification
   5.2 MIM EXPRESS short listing
     5.2.1 MIM entity definitions

A MIM short names
B Information object registration
C ARM EXPRESS-G   EXPRESS-G
D MIM EXPRESS-G   EXPRESS-G
E Computer interpretable listings
F Change history
Bibliography
Index

4 Information requirements

This clause specifies the information requirements for the Geometric model 2d 3D relationship application module. The information requirements are specified as the Application Reference Model (ARM) of this application module.

NOTE 1  A graphical representation of the information requirements is given in Annex C.

NOTE 2  The mapping specification is specified in 5.1. It shows how the information requirements are met by using common resources and constructs defined or imported in the MIM schema of this application module.

This clause defines the information requirements to which implementations shall conform using the EXPRESS language as defined in ISO 10303-11. The following begins the Geometric_model_2d_3d_relationship_arm schema and identifies the necessary external references.

EXPRESS specification:

*)
SCHEMA Geometric_model_2d_3d_relationship_arm;
(*

4.1 Required AM ARMs

The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.

EXPRESS specification:

*)
USE FROM Contextual_shape_positioning_arm;    --  ISO/TS 10303-1027

USE FROM Geometric_model_relationship_arm;    --  ISO/TS 10303-1403
(*

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

Contextual_shape_positioning_arm ISO/TS 10303-1027
Geometric_model_relationship_arm ISO/TS 10303-1403

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

4.2 ARM entity definitions

This subclause specifies the ARM entities for this module. Each ARM application entity is an atomic element that embodies a unique application concept and contains attributes specifying the data elements of the entity. The ARM entities and definitions are specified below.

4.2.1 Axis_placement_2d_3d_mapping   EXPRESS-GMapping table

An Axis_placement_2d_3d_mapping is a geometric transformation defined by a source Axis_placement_2d and a target Axis_placement_3d.

The transformation shall be computed as the following mapping:

EXPRESS specification:

*)
ENTITY Axis_placement_2d_3d_mapping;
  transform_item_1 : Axis_placement_2d;
  transform_item_2 : Axis_placement_3d;
END_ENTITY;
(*

Attribute definitions:

transform_item_1: the Axis_placement_2d that plays the role of source in the transformation.

transform_item_2: the Axis_placement_3d that plays the role of target in the transformation.

4.2.2 Coordinated_geometric_relationship_with_2d_3d_placement_transformation   EXPRESS-GMapping table

A Coordinated_geometric_relationship_with_2d_3d_placement_transformation is a type of Geometric_model_relationship_with_transformation. There are no definitional or derived semantics assigned to the relationship.

EXPRESS specification:

*)
ENTITY Coordinated_geometric_relationship_with_2d_3d_placement_transformation
  SUBTYPE OF (Geometric_model_relationship_with_transformation);
  transformation : Axis_placement_2d_3d_mapping;
WHERE
  WR1: NOT('GEOMETRIC_MODEL_RELATIONSHIP_ARM.DEFINITIONAL_REPRESENTATION_RELATIONSHIP' IN TYPEOF(SELF));
END_ENTITY;
(*

Attribute definitions:

transformation: the Axis_placement_2d_3d_mapping that identifies the transformation for the Coordinated_geometric_relationship_with_2d_3d_placement_transformation.

Formal propositions:

WR1: A Coordinated_geometric_relationship_with_2d_3d_placement_transformation shall not be a Definitional_representation_relationship.



*)
END_SCHEMA;  -- Geometric_model_2d_3d_relationship_arm
(*


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