ISO 10303-214:2010(E)

Figure — Arrowleft Figure — Clause 4 Figure — Arrowright

4.2.29 Assembly_component_relationship

An Assembly_component_relationship is the relation between an Assembly_definition and an Item_instance representing a constituent of the assembly. The Assembly_definition and the Design_discipline_item_definition that serves as 'definition' of the Item_instance shall share at least one Application_context.

NOTE The constituent may also be an assembly.

An Assembly_component_relationship is a type of Item_definition_instance_relationship.

Each Assembly_component_relationship may be a Next_higher_assembly or a Promissory_usage.

The data associated with an Assembly_component_relationship are the following:

4.2.29.1 placement

The placement specifies the Geometric_model_relationship_with_transformation or the Template_instance that specify the transformation information which is used to locate and orient the constituent in the coordinate space of the Assembly_definition. In the case of a Template_instance, the scale factor shall be omitted or set to 1.0.

See Assembly_component_relationship to geometric_model_relationship_with_transformation and Assembly_component_relationship to template_instance for the application assertions.

The placement need not be specified for a particular Assembly_component_relationship.

If present, there shall be exactly one object that defines the placement for an Assembly_component_relationship.

4.2.29.2 relating

The relating specifies the Assembly_definition that has subordinate constituents.

See Assembly_component_relationship to assembly_definition for the application assertion.



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