IfcRepresentationMap
Definition from ISO/CD 10303-43:1992: A representation map is the
identification of a representation and a representation item in that
representation for the purpose of mapping. The representation item defines the
origin of the mapping. The representation map is used as the source of a
mapping by a mapped item.
NOTE: The definition of a mapping which is used to
specify a new representation item comprises a representation map and a mapped
item entity. Without both entities, the mapping is not fully defined. Two
entities are specified to allow the same source representation
(representation.map.mapped_representation) to be mapped into multiple new
representations (mapped_item)
Definition from IAI: An IfcRepresentationMap defines the
base definition (also referred to as block, cell or macro) within the mapping
origin, defined as the placement coordinate system. The representation map is
restricted to Cartesian mapping.
NOTE: Corresponding STEP entity:
representation_map. Please refer to ISO/IS 10303-43:1994, for the final
definition of the formal standard. The following changes have been made: The
mapping_origin (MappingOrigin) is constrained to be of type
axis2_placement (IfcAxis2Placement).
HISTORY: New entity in IFC Release
2x.
EXPRESS specification:
Attribute definitions:
| MappingOrigin
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:
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An axis2 placement that defines the position about which the mapped
representation is mapped.
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| MappedRepresentation
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:
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A representation that is mapped to at least one mapped item.
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Inheritance graph
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| ENTITY IfcRepresentationMap;
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