此枚举定义了建筑内部或建筑外部的不同类型的空间边界。

IFC2.0中的增加的新枚举

IFC4更改枚举不再适用于IfcSpace。添加以下枚举数：外部土、外部水、外部火。


Constant

Description

INTERNAL

The space boundary faces a physical or virtual element where there is an internal space on the other side.

EXTERNAL

The space boundary faces a physical or virtual element where there is an external space on the other side.

EXTERNAL_EARTH

The space boundary faces a physical or virtual element where there is earth (or terrain) on the other side.

EXTERNAL_WATER

The space boundary faces a physical or virtual element where there is water (water component of terrain) on the other side.

EXTERNAL_FIRE

The space boundary faces a physical or virtual element where there is another building on the other side.

NOTDEFINED

No information available.