Defined in File Ifc4x3_rc1.h
IfcGeographicElementType: public Ifc4x3_rc1::IfcElementType¶
Definition from IAI: An IfcGeographicElementType is used to define an element specification of a geographic element (i.e. the specific product information, that is common to all occurrences of that product type).Geographic element types include for different types of element that may be used to represent information within a geographical landscape external to a building. Within the world of geographic information they are referred to generally as ‘features’. Geographic element types includes for many possibilities:
linear elements such as sections of a roadway (including carriageway/pavement, verge, median, marker line, kerb etc.), path, river, stream
connections and junctions including traffic roundabouts, T junctions, 4 way junctions
point features such as street lighting, seating, bus shelters, signage, trees
linear features such as layby’s
area features such as ponds, lakes, woods and forests
NOTE This is due to the range of choices of element type thyat are available and their expression in different languages. It is not considered possible to create a reasonably full list of types within an enumeration. It is suggested that selection of the relevant type be drawn from an available ‘feature catalog’.
HISTORY New entity in Release IFC2x Edition 4.
Feature Catalog Use Definition
Geographic element types are frequently identified in feature catalogs that are produced for particular purposes.The IfcGeographicElementType entity enables the continued use of existing feature catalogs through capture of their identity and attributes.
Information from feature catalogs might be captured in various ways:
via property sets, some of which will be specifically defined within the IFC property set catalog whilst others will be created for local use; this is the form of capture that is expected to be most widely used
through use of the IFC classification model whereby features might be identified through a classification notation and additional description; in which case, any further attributes required would still need to be captured in property sets.
Predefined types to define the particular type of the geographic element. There may be property set definitions available for each predefined type.
IfcGeographicElementType(std::string v1_GlobalId, ::Ifc4x3_rc1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ApplicableOccurrence, boost::optional<IfcTemplatedEntityList<::Ifc4x3_rc1::IfcPropertySetDefinition>::ptr> v6_HasPropertySets, boost::optional<IfcTemplatedEntityList<::Ifc4x3_rc1::IfcRepresentationMap>::ptr> v7_RepresentationMaps, boost::optional<std::string> v8_Tag, boost::optional<std::string> v9_ElementType, ::Ifc4x3_rc1::IfcGeographicElementTypeEnum::Value v10_PredefinedType)¶