Editing nodes and edges

After you create a map topology, you have access to all of the topology editing tools in ArcMap. With these tools, you can create and maintain coincidence between parts of features within a single feature class or among multiple feature classes.

Your starting point is the Topology Edit tool . After you select an edge or node with this tool, all other topology editing functionality becomes available. Using the Topology Edit tool, you can modify coincident geometry for two or more features simultaneously as described below:

· Move an edge or node

The Topology Edit tool is used to select and drag a node to a new location. The connected edges rubberband to maintain coincidence.

• Reshape an edge

With the Reshape Edge task selected, the Topology Edit tool is used to select the edge and the Sketch tool is used to reshape it.

• Modify an edge

With the Modify Edge task selected, the Topology Edit tool is used to select the edge, add a vertex using a context menu, and move the vertex.

You can also use the Topology Edit tool and the Show Shared Features tool to find out which features share a selected edge or node and to temporarily remove an element from the topology if you don't want your edits to affect it.

Editing a multiuser geodatabase

If you're working with data in a multiuser geodatabase, particularly when you're editing topologically related features (including network features), it's a good idea to build a map cache.

The map cache places features in the current display extent into memory on your local machine.

The caching of data reduces the number of queries that the client (your computer) needs to execute on the server during editing. Using the map cache makes feature editing faster because ArcMap doesn't have to retrieve the data from the server.

The Map Cache toolbar contains tools to build and manage a map cache.

For more information about the map cache, see the ArcGIS Desktop Help (Contents tab -> ArcMap -> Getting started with ArcMap -> Working with the map cache).