根据CIM模型，分别对设备图元的几何属性、电气属性和拓扑属性进行设计。

According to CIM, the paper has designed the geometric property, electric property and topological property of equipment elements.

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这里使用空间填充曲线来保存空间和拓扑属性（请参阅 参考资料 一节，找到 H. Sagan 撰写的书籍）。

The generation employs space filling curves to preserve the spatial and topological properties (see the Resources section for the H. Sagan book).

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因此，拓扑编辑器中的默认确认器会自动确保属性有一个字符串类型的值。

Thus, the default validators in the topology editor automatically ensure that the attribute has a string value.

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