## page was renamed from map_coverage.e
= map_coverage =

Compiled by KD

== Description ==

This executable generates coverage for a limited area (bigmap) of what has been tiled and processed (as per landmark files). In other words, map_coverage produces a coverage_m.pgm file that shows areas on a bigmap that have been tiled at user specified resolutions. black means not covered while covered areas are bright. The brighter the area the more overlaps that are present.

Near the end of processing, there may be thousands of maplets. To speed up things up, the routine will read in [[LMRKLISTO.TXT]] if it exists. This file speeds up map_coverage because it directly tells the program which maplets to show rather than searching.


== Input - files ==
 * big map, name provided in stdin

== Input - stdin ==

 * filename (of a bigmap)  
{{{ 
 ZN0204
}}}

 * min and max resolution of tiles (maplets) to show
{{{
 0,.001 
}}}

== Output ==
 * coverage_m.pgm - a regional map showing what has been tiled to the specified resolution
{{attachment:map_coverage.jpg}}
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CategoryPrograms