IfcStateEnum

类型定义

IfcStateEnum枚举标识对象的状态或可访问性（例如，读/写、锁定）。

有效的枚举包括：

IFC2.0中的新枚举。

IFC2x3 这个概念最初在IFC2.0中作为BINARY（3）FIXED类型的IfcModifiedFlag引入，并在2x3中修改为枚举。它最初是作为为部分模型交换提供设施的第一步引入的，主要用于模型服务器，以便应用程序能够识别对象的状态。

Enumeration definition

Constant	Description
READWRITE	Object is in a Read-Write state. It may be modified by an application.
READONLY	Object is in a Read-Only state. It may be viewed but not modified by an application.
LOCKED	Object is in a Locked state. It may not be accessed by an application.
READWRITELOCKED	Object is in a Read-Write-Locked state. It may not be accessed by an application.
READONLYLOCKED	Object is in a Read-Only-Locked state. It may not be accessed by an application.

EXPRESS Specification

TYPE IfcStateEnum = ENUMERATION OF (
 READWRITE,
 READONLY,
 LOCKED,
 READWRITELOCKED,
 READONLYLOCKED);
END_TYPE;

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标签：may,IfcStateEnum,Object,application,state,Read
From： https://www.cnblogs.com/herd/p/16990676.html