API Reference > OdIfc4x1 Namespace > Classes > IfcPhysicalQuantity Class > IfcPhysicalQuantity Methods > unsetAttr Method > IfcPhysicalQuantity::unsetAttr Method (char *)
IfcPhysicalQuantity::unsetAttr Method (char *)
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Syntax
C++
virtual void unsetAttr(const char * explicitAttrName);
Parameters
Parameters 
Description 
const char * explicitAttrName 
[in] An ANSI string that contains the attribute name. 
Description

Clears the attribute value.

Group
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