IfcSoundPressureLevelMeasure

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcSoundPressureLevelMeasure			ADDED

Semantic definitions at the type

Type definition

A sound pressure level measure is a measure of the pressure fluctuations superimposed over the ambient pressure level with units of decibels with a reference value of micropascals.

Type: REAL

HISTORY Renamed in IFC4 (was IfcSoundPressureMeasure).

Formal representations

XSD Specification

 <xs:simpleType name="IfcSoundPressureLevelMeasure">

  <xs:restriction base="xs:double"/>

 </xs:simpleType>

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

  <xs:complexType>

   <xs:simpleContent>

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

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

    </xs:extension>

   </xs:simpleContent>

  </xs:complexType>

 </xs:element>

EXPRESS Specification


TYPE IfcSoundPressureLevelMeasure = REAL;
END_TYPE;


 EXPRESS-G diagram

	Sound Pressure Level Measure
	Mesure de niveau de pression sonore