Computerized system for joining individual maps into a single ma

Details Computerized system for joining individual maps into a single ma Computerized system for joining individual maps into a single ma

1990-05-22

1992-09-22

Hayes, Gail

Boots, shoes, and leggings

G06F 1562

Patent

active

051502950

ABSTRACT:
An improved method of making a larger map from individual 7.5 minute digital line graph (DLG) data is described herein. The process is fully automated and performed by a computer with minimal human interaction required. This eliminates errors and produces a more accurate final map product. The method includes conversion of the raw DLG data files into ARC/INFO format, locating the border arcs of each individual data set, edgematching the individual map data sets, and joining the data sets into a single, large map coverage. Any node along the border arc which cannot be automatically edgematched is noted in a special error file. A geographer then matches the unmatched edges which contain an error in the input data. A large map product is available as the product of the process.

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