FAQ:  Are there limitations to using z-values in a geometric network that participates in the Local Government Information Model?

【解决方案】
No, there are no limitations to using z-values in a geometric network that participates in the Local Government Information Model (LGIM). On the contrary, the addition of z-values allows for three-dimensional modeling of the connectivity of point and line features.

However, the z-values must be enabled when creating a geometric network, and all feature classes participating in the geometric network must support z-values. Any existing geometric network must be re-created in the LGIM. To do this in ArcMap, refer to the following documentation,
ArcGIS Help: Building a geometric network from existing simple feature classes.

【其它相关参考】

1. ArcGIS Help: Creating a feature class in a feature dataset
2. ArcGIS Help: Building a geometric network using a geoprocessing tool
3. ArcGIS Help: Modeling elevation
4. ArcGIS Resources Blog: What is the Local Government Information Model
5. ArcGIS Help: The Local Government Information Model
6. ArcGIS Help: Creating a feature class in a feature dataset

【创建及修改时间】
Created: 6/17/2015 Last Modified: 7/6/2015
【原文链接】
http://support.esri.com/en/kno ... 44938