About this 3D model

Here are small models, actually relief maps, of Mound Fuji and Mount Etna. The models were constructed using NASA's SRTM3 data set. http://dds.cr.usgs.gov/srtm/version2_1/ Height data for most of the earth is available at 3 arc-second intervals. The data comes as "tiles" one degree latitute and longitude on a side. Each tile contains 1201 rows and 1201 columns of two byte signed integers. Fortran code very similar to that described in thing:118327 was used to write the openSCAD polyhedron commands that constructed the models. Stl files are Fuji.stl and Etna.stl. The fortran code that makes the polyhedron commands is included.