About Toggling a Layer/Source

You must choose which layer(s) within a map to use as breakline sources. If a layer is selected, then features from the layer will be used as a breakline source in the triangulation process. If a layer is not selected then the features are ignored during the triangulation process.

How to Toggle the Use of a Layer/Source

1. Click the check box in the left most column for the row of the layer you wish to toggle.
   
   
2. If the checkbox is checked, the layer will be used as a breakline source, if not the layer will be ignored as a breakline source.