About advanced polygon and polyline editing

A polygon or polyline is made up of a series of vertices and edges. Vertices can be moved, deleted, or added. Vertices can also be snapped to vertices of other polygon or polyline objects. These shared vertices can then be moved together. See the following topics for further details:

• Digitising network objects for more information on how to create polygon and polyline objects.
• Editing network object geometry for details on how to edit polygon and polyline objects.

More advanced operations can be carried out on polygon and polyline geometry:

• Geometry data of polygon and polyline objects can be cleaned to reduce the number of vertices and to correct self intersection by use of the simplify geometry tool.
• Selected pairs of polygons of the same type can be combined to form a single merged polygon by use of the merge polygons tool.