Breakline Source Layers

The breakline source layers are those layers within the map that can be used as breakline sources. You can toggle whether or not a layer is used as a breakline source and control specific types of features within a single layer.
In addition to selecting a layer as a breakline source, the elevation field must be selected for each layer and/or feature type. Typically, the elevation field will be the "Shape" field which uses the Z coordinate of each vertex within the feature geometry. You may also use other fields to define the elevation for the entire feature such as for ponds or lakes.

How to toggle the use of a layer/source
Selecting an Elevation Field
Selecting a Type Field
How to toggle the use of types
How to toggle the out area state