Matching Map Edges
Concept Procedure Quick Reference
 
 
 

Maps that are digitized at different times or that use different coordinate systems can appear distorted at their edges. Edge matching creates a seamless join across two or more maps.

Use the edge-matching process on one layer at a time. You might edge match the roads on the two maps first.

You can avoid using edge matching by digitizing a complete map in one session, rather than breaking the map into smaller sections. If you must digitize a map in sections, allow a 3-5% overlap along the edges of a map tile and digitize both linear and point features on each tile that are common to both tiles of the map.

See Also