Use alternate mapservers and EPSG codes

[mathuin]

One approach to supporting areas not currently served by the USGS is to run my own mapserver. From that mapserver, I can serve files which cover the whole world -- elevation at fifteen and three arcseconds from http://viewfinderpanoramas.org/ and landcover at http://glcf.umd.edu/data/landcover/ to start.

However, once we make non-US-centric maps, we need to start from a non-US-centric projection. I should choose one projection for each continent, and allow the user to select their projection from the command line. It's also possible, but not probable, that a projection could be sent from the mapserver.

Anyway, here's what I think I need to do:

1. download all the files (I think this is done)
2. learn how to set up a mapserver (not yet)
3. change TopoMC to poll this mapserver for current data
4. support other regions.

From here, I can bundle up the minimum for mapping other areas (want to map Europe, here's how -- download these files, set up this server, point your TopoMC at it, shazam) for other people. More research is needed!