= coverage =

Generates global coverage of what has been tiled and processed (as per landmark files)

=== Input ===
 * stdin:  
 0,.1 (start and ending resolution)
 * files: view_maps.in (you get this from using ["iupdate_infiles.e"])

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