= map_coverage =

Generates coverage for a limited area (bigmap) of what has been tiled and processed (as per landmark files)

=== Input - files ===
 * view_maps.in (you get this from using ["update_infiles.e"])

=== Input - stdin ===

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

 * Start and ending resolution (in km?)
{{{
 0,.1 
}}}

=== Output ===
 * coverage_g.pgm - a global map showing what has been tiled to the specified resolution