ISO 10303-214:2010(E)

Figure — Arrowleft Figure — Clause 4 Figure — Arrowright

4.2.289 Item_shape

An Item_shape is the definition of the shape of a Design_discipline_item_definition, an Item_instance, a Physical_instance, or of a Product_component.

NOTE 1 An Item_shape is used to define the shape of an Item_instance when the shape of the item varies according to the usage context of this item, e.g. shape of a flexible pipe when placed in a car.

NOTE 2 An Item_shape will also be used to identify the shape of an Item_instance, regardless whether the item is flexible, fluid or solid, when a particular constraint, e.g. a location dimension, applies to an element of the shape of the item, in the context of a particular usage of this item.

Each Item_shape may be a Featured_shape.

The data associated with an Item_shape are the following:

4.2.289.1 described_object

The described_object specifies the object whose shape the Item_shape defines.

See item_shape to design_discipline_item_definition, item_shape to item_instance, item_shape to physical_instance, and item_shape to product_component for the application assertions.

There shall be exactly one object that defines the described_object for an Item_shape.

4.2.289.2 description

The description specifies additional information about the Item_shape.

See item_shape to multi_language_string for the application assertion.

The description need not be specified for a particular Item_shape.

If present, there shall be exactly one object that defines the description for an Item_shape.

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