IfcComplexNumber

Semantic definitions at the type

Type definition

IfcComplexNumber is a representation of a complex number expressed as an array with two elements. The first element (index 1) denotes the real component which is the numerical component of a complex number whose square roots can be calculated explicitly. The second element (index 2) denotes the imaginary component which is the numerical component of a complex number whose square roots cannot be determined other than through the provision of the square of the imaginary number j where j^2 = -1. Note that the imaginary component may be referred to as i in certain references.

Type: ARRAY [1:2] OF REAL

HISTORY New type in IFC2x2.

Formal representations

XSD Specification

 <xs:complexType name="IfcComplexNumber">

  <xs:simpleContent>

   <xs:extension base="ifc:List-IfcComplexNumber">

    <xs:attribute ref="ifc:itemType" fixed="xs:double"/>

    <xs:attribute ref="ifc:cType" fixed="array"/>

    <xs:attribute ref="ifc:arraySize" use="optional"/>

   </xs:extension>

  </xs:simpleContent>

 </xs:complexType>

 <xs:simpleType name="List-IfcComplexNumber">

  <xs:restriction>

   <xs:simpleType>

    <xs:list itemType="xs:double"/>

   </xs:simpleType>

   <xs:minLength value="2"/>

   <xs:maxLength value="2"/>

  </xs:restriction>

 </xs:simpleType>

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

  <xs:complexType>

   <xs:simpleContent>

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

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

    </xs:extension>

   </xs:simpleContent>

  </xs:complexType>

 </xs:element>

EXPRESS Specification


TYPE IfcComplexNumber = ARRAY [1:2] OF REAL;
END_TYPE;


 EXPRESS-G diagram

	Komplexe Zahl
	Complex Number
	Nombre complexe