Topological modeling
A geographic data framework (GIS) can perceive and break down the spatial connections that exist inside digitally put away spatial information. These topological connections permit complex spatial demonstrating and examination to be performed. Topological connections between geometric elements customarily incorporate nearness (what appends what), control (what encases what), and closeness (how close something is to something else).
reconstitute a sight in blended pictures of the ground,
decide a direction of overflight of the ground,
compute surfaces or volumes,
follow topographic profiles,
