标签：material surface MaterialOptical Pset IfcPositiveRatioMeasure fraction SINGLEVAL

Pset_MaterialOptical

材料光学：材料的一组光学性质。

Name	Type	Description
VisibleTransmittance	P_SINGLEVALUE / IfcPositiveRatioMeasure	Visible Transmittance Transmittance at normal incidence (visible). Defines the fraction of the visible spectrum of solar radiation that passes through per unit area, perpendicular to the surface.
SolarTransmittance	P_SINGLEVALUE / IfcPositiveRatioMeasure	Solar Transmittance Transmittance at normal incidence (solar). Defines the fraction of solar radiation that passes through per unit area, perpendicular to the surface.
ThermalIrTransmittance	P_SINGLEVALUE / IfcPositiveRatioMeasure	Thermal Ir Transmittance Thermal IR transmittance at normal incidence. Defines the fraction of thermal energy that passes through per unit area, perpendicular to the surface.
ThermalIrEmissivityBack	P_SINGLEVALUE / IfcPositiveRatioMeasure	Thermal Ir Emissivity Back Thermal IR emissivity: back side. Defines the fraction of thermal energy emitted per unit area to "blackbody" at the same temperature, through the "back" side of the material.
ThermalIrEmissivityFront	P_SINGLEVALUE / IfcPositiveRatioMeasure	Thermal Ir Emissivity Front Thermal IR emissivity: front side. Defines the fraction of thermal energy emitted per unit area to "blackbody" at the same temperature, through the "front" side of the material.
VisibleReflectanceBack	P_SINGLEVALUE / IfcPositiveRatioMeasure	Visible Reflectance Back Reflectance at normal incidence (visible): back side. Defines the fraction of the solar ray in the visible spectrum that is reflected and not transmitted when the ray passes from one medium into another, at the "back" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.
VisibleReflectanceFront	P_SINGLEVALUE / IfcPositiveRatioMeasure	Visible Reflectance Front Reflectance at normal incidence (visible): front side. Defines the fraction of the solar ray in the visible spectrum that is reflected and not transmitted when the ray passes from one medium into another, at the "front" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.
SolarReflectanceBack	P_SINGLEVALUE / IfcPositiveRatioMeasure	Solar Reflectance Back Reflectance at normal incidence (solar): back side. Defines the fraction of the solar ray that is reflected and not transmitted when the ray passes from one medium into another, at the "back" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.
SolarReflectanceFront	P_SINGLEVALUE / IfcPositiveRatioMeasure	Solar Reflectance Front Reflectance at normal incidence (solar): front side. Defines the fraction of the solar ray that is reflected and not transmitted when the ray passes from one medium into another, at the "front" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.

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标签：material,surface,MaterialOptical,Pset,IfcPositiveRatioMeasure,fraction,SINGLEVAL
来源： https://www.cnblogs.com/herd/p/15034964.html

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