Generating a set of web tiles from SRTM data involves a careful dance of loading ''just enough'' data into RAM to generate the world one "slice" at a time. This is a theoretical discussion of how it might be done. It's similar to what was used to write the python script [PythonScripts#gen_terrain_tiles_script.py gen_terrain_tiles_script.py], but isn't the same. Truthfully that python script would be much improved if this document was written first. . .

= Zoom Levels 

||=Zoom Level=||=Degrees Lon.=||
|| 0 || 360 ||
|| 1 || 180 ||
|| 2 || 90 ||
|| 3 || 45 ||
|| 4 || 22.5 ||
|| 5 || 11.25 ||
|| 6 || 5.625 ||
|| 7 || 2.813 ||
|| 8 || 1.406 ||
|| 9 || .703 ||
|| 10 || .352 ||

More info can be found on the [https://wiki.openstreetmap.org/wiki/Zoom_levels OSM Wiki]