#### 6.1.2.1 IfcConnectionTypeEnum

This enumeration defines the different ways how path based elements (such as IfcWallStandardCase) can connect, as shown in Figure 102.

> HISTORY New type in IFC2.0

Enumerated Item Definitions:

The enumerated items shall be used in the following combinations:

Connection type | Illustration
--- | ---
L-Shape Connection RelatingConnectionType: AtStart RelatedConnectionType: AtStart |
L-Shape Connection RelatingConnectionType: AtEnd RelatedConnectionType: AtStart |
T-Shape Connection RelatingConnectionType: AtPath RelatedConnectionType: AtStart |
Figure 102 — Connection types

XSD Specification:

<xs:simpleType name="IfcConnectionTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="atpath"/>
<xs:enumeration value="atstart"/>
<xs:enumeration value="atend"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcConnectionTypeEnum = ENUMERATION OF (
| ATPATH, ATSTART, ATEND, NOTDEFINED);
END_TYPE;

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