Natural language names
Positive Integer
Change log
IFC4 Addendum 1
Semantic definitions at the type
Type definition

IfcPositiveInteger is a defined type based on simple data type Integer with the additional restriction to positive integers (excluding zero).

In principle, the domain of IfcInteger is all integer numbers larger than zero. Here the number of bits used for the IfcInteger representation is unconstrained, but in practice it is implementation specific.


HISTORY  New type in IFC4 ADD1
Formal Propositions
WR1A positive integer shall be greater than zero.
Formal representations
XML Specification
 <xs:simpleType name="IfcPositiveInteger">
  <xs:restriction base="ifc:IfcInteger"/>
EXPRESS Specification
TYPE IfcPositiveInteger = IfcInteger;
  WR1 : SELF > 0

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcIndexedPolygonalFace IfcIndexedPolygonalFaceWithVoids IfcPolygonalFaceSet IfcTriangulatedFaceSet IfcSimpleValue IfcIndexedColourMap IfcIndexedTriangleTextureMap

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