| 接口 | 说明 |
|---|---|
| IfcBooleanOperand |
This select type identifies all those types of entities which may participate in a Boolean operation to form a CSG
solid.
|
| IfcCsgSelect |
This type identifies the types of entity which may be selected as the root of a CSG tree including a single CSG
primitive as a special case (currently not in IFC).
|
| IfcGeometricSetSelect |
This select type identifies the types of entities which can occur in a geometric set.
|
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