For example, you might receive a design for a new subdivision already drawn as raw geometry with lines or polylines. In this case, you need to edit the parcel data, delete the old, undivided parcel feature, and replace it with the subdivided parcel geometry. In this process, you convert the raw geometry into features in the database.
In November 2000, the Government of India created the new state of Chhattisgarh out of the eastern part of the state of Madhya Pradesh. Countless maps became out-of-date overnight. The map on the left shows the pre-2000 conditions, while the map on the right shows the state boundaries as they were redrawn in the year 2000.
In this example, the state boundaries are stored in a database (thick black lines on the map). The boundaries for the new states have been drafted as closed polylines on separate layers (thick blue and green lines). They are not visible when the animation starts. The procedure goes like this: