IfcReal

Natural language names

	Real
	Réel

Semantic definitions at the type

Type definition

IfcReal is a defined type of simple data type REAL. It is required since a select type (IfcSimpleValue), cannot directly include simple types in its select list.

In principle, the domain of IfcReal (being a Real) is all rational, irrational and scientific real numbers. Here the precision is unconstrained, but in practice it is implementation specific.

Type: REAL

HISTORY New type in IFC1.5.1.

Formal representations

XSD Specification

 <xs:simpleType name="IfcReal">

  <xs:restriction base="xs:double"/>

 </xs:simpleType>

 <xs:element name="IfcReal-wrapper" nillable="true">

  <xs:complexType>

   <xs:simpleContent>

    <xs:extension base="ifc:IfcReal">

     <xs:attributeGroup ref="ifc:instanceAttributes"/>

    </xs:extension>

   </xs:simpleContent>

  </xs:complexType>

 </xs:element>

EXPRESS Specification


TYPE IfcReal = REAL;
END_TYPE;


 EXPRESS-G diagram

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