IfcGridPlacementDirectionSelect
类型定义
IfcGridPlacementDirectionSelect允许选择将网格放置定义为显式方向，或通过引用第二个网格交点来提供方向。
IFC4中的新选择类型。
Enumeration definition
| Constant | Description |
|---|---|
| IfcVirtualGridIntersection | |
| IfcDirection |
EXPRESS Specification
TYPE IfcGridPlacementDirectionSelect = SELECT ( IfcVirtualGridIntersection, IfcDirection); END_TYPE;
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标签：IfcDirection,IfcGridPlacementDirectionSelect,网格,IfcVirtualGridIntersection,EXPRE From： https://www.cnblogs.com/herd/p/16623169.html