IfcPositiveLengthMeasure

Semantic definitions at the type

Type definition

Definition from ISO/CD 10303-41:1992: A positive length measure is a length measure that is greater than zero.

NOTE Corresponding STEP name: positive_length_measure, please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.

HISTORY New type in IFC Release 1.5.1.

Rule	Description
WR1	A positive measure shall be greater than zero.

Formal representations

XSD Specification

 <xs:simpleType name="IfcPositiveLengthMeasure">

  <xs:restriction base="ifc:IfcLengthMeasure"/>

 </xs:simpleType>

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

  <xs:complexType>

   <xs:simpleContent>

    <xs:extension base="ifc:IfcPositiveLengthMeasure">

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

    </xs:extension>

   </xs:simpleContent>

  </xs:complexType>

 </xs:element>

EXPRESS Specification


TYPE IfcPositiveLengthMeasure = IfcLengthMeasure;
 WHERE

  WR1 : SELF > 0.
END_TYPE;


 EXPRESS-G diagram