Enabling edit sketch snapping is particularly useful when you are splitting polygons or cutting donut holes in them, since it ensures the cut operation will be completed successfully. It is also useful when you are creating a feature that intersects or connects to itself, such as a boundary line that forms a closed loop. To enable Snap To Sketch, you must be in an edit session.
- Make sure you are in an edit session.
- Ensure snapping is enabled. On the Snapping toolbar, click the Snapping menu and make sure Use Snapping is checked.
- Click the Snapping menu on the Snapping toolbar and click Snap To Sketch.
- Turn on at least one snap type, such as edge or vertex snapping. For example, when vertex and edge snapping are enabled, you can snap to vertices and edges within the sketch in addition to other features in the map.