10.1.2 Mesh reduction from the command line.9 Creating STL from XZY point clouds with Meshlab.8 Creating STL from geoTIFF elevation maps with gdal and phstl.py.5.2 Dealing with ArcInfo ASCII grid (*.asc) files.4.2 Using hills to create printable STL terrain models.4 Produce STL from ASC SRTM data with the hills command line tool.