Class Ifc4::IfcSpecularRoughness

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcSpecularRoughness : public IfcUtil::IfcBaseType

The IfcSpecularRoughness defines the datatype for the reflection resulting from the roughness of a surface through the height of surface impurities where the specular highlight is made sharper with small values for the roughness, such as 0.1.

Applies to “glass”, “metal”, “mirror” and “plastic” reflection models. Larger values, close to 1.0 decrease the specular fall-off.

IfcSpecularRoughness is of type REAL. It is constraint to values between (and including) 0 and 1.

NOTE: The datatype relates to the definition of “shiness” in VRML97, which is the reciprocate value to the specular roughness.

HISTORY: New type in Release IFC2x2.

Public Functions

const IfcParse::type_declaration &declaration() const
IfcSpecularRoughness(IfcEntityInstanceData *e)
IfcSpecularRoughness(double v)
operator double() const

Public Static Functions

const IfcParse::type_declaration &Class()