IfcSurfaceSide

IfcSurfaceSide是一个表面的负、正或两面都被引用的表示。

 

注释类型根据ISO10303-46中定义的表面_侧改编。

IFC2.0中的新枚举类型

 

Enumeration definition

Constant	Description
POSITIVE	The side of a surface which is in the same direction as the surface normal derived from the mathematical definition.
NEGATIVE	The side of a surface which is in the opposite direction than the surface normal derived from the mathematical definition.
BOTH	Both, positive and negative side.

 

 

 

 

 

 

EXPRESS Specification

TYPE IfcSurfaceSide = ENUMERATION OF (
 POSITIVE,
 NEGATIVE,
 BOTH);
END_TYPE;