Application module: Characterized representation | ISO/TS 10303-1805:2014-02(E) © ISO |
This clause specifies the information requirements for the Characterized representation 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 Characterized_representation_arm schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA Characterized_representation_arm;
(*
The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.
EXPRESS specification:
*)
USE FROM
Characterizable_object_arm;
--
ISO/TS 10303-1765
USE FROM
Elemental_geometric_shape_arm;
--
ISO/TS 10303-1004
USE FROM
Foundation_representation_arm;
--
ISO/TS 10303-1006
USE FROM
Property_assignment_arm;
--
ISO/TS 10303-1030
REFERENCE FROM
Foundation_representation_arm
--
ISO/TS 10303-1006
(using_representations);
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
Characterizable_object_arm ISO/TS 10303-1765 Elemental_geometric_shape_arm ISO/TS 10303-1004 Foundation_representation_arm ISO/TS 10303-1006 Property_assignment_arm ISO/TS 10303-1030 Foundation_representation_arm ISO/TS 10303-1006
NOTE 2 See Annex C, Figures C.1and C.2 for a graphical representation of this schema.
This subclause specifies the ARM types for this application module. The ARM types and definitions are specified below.
The chained_representation_link type is an extensible list of alternate data types that allows for the designation of the data types Geometric_placement_operation, Representation_context and Representation_relationship.
NOTE The list of entity data types may be extended in application modules that use the constructs of this module.
EXPRESS specification:
*)
TYPE
chained_representation_link =
EXTENSIBLE
GENERIC_ENTITY
SELECT
(Geometric_placement_operation,
Representation_context,
Representation_relationship);
END_TYPE;
(*
The cr_property_assignment_select type is an extension of the property_assignment_select type. It adds the data types Characterized_representation and Characterized_item_within_representation to the list of alternate data types.
EXPRESS specification:
*)
TYPE
cr_property_assignment_select =
SELECT
BASED_ON
property_assignment_select
WITH
(Characterized_representation,
Characterized_item_within_representation);
END_TYPE;
(*
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.
EXPRESS specification:
*)
ENTITY Characterized_chain_based_item_within_representation
SUBTYPE OF (Characterized_item_within_representation);
nodes : LIST[2:?] OF
UNIQUE
Representation;
undirected_link : LIST[1:?] OF
UNIQUE
chained_representation_link;
END_ENTITY;
(*
Attribute definitions:
nodes: the ordered list of Representation, in the chain.
undirected_link: the list of items that relate nodes in the chain.
EXPRESS specification:
*)
ENTITY Characterized_item_within_representation
SUBTYPE OF (Characterizable_object);
item : Representation_item;
rep : Representation;
UNIQUE
UR1: item, rep;
WHERE
WR1: rep IN using_representations(item);
END_ENTITY;
(*
Attribute definitions:
item: specifies the role of the Representation_item for the Characterized_item_within_representation.
rep: specifies the role of the Representation for the Characterized_item_within_representation.
Formal propositions:
UR1: The combination of item and rep shall be unique within a population of the Characterized_item_within_representation.
WR1: the item shall be used within the Representation indicated by rep.
EXPRESS specification:
*)
ENTITY Characterized_representation
SUBTYPE OF (Representation, Characterizable_object);
END_ENTITY;
(*
*)
END_SCHEMA; -- Characterized_representation_arm
(*
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