Geographic Information Systems (GIS)

Information on methods pretaining to Geographic Information Systems (GIS).

Digital Terrain Modelling and Mapping

Generate 3D Digital Terrain Maps using free digital elevation model (DEM) data from the USGS, NIMA, EOS-EDC, GLCF, World Wind, JPL and other sources. Learn to render them using POV-Ray, MicroDem, Terragen, 3DEM, Global Mapper, Arc Explorer, Multispec and other free or low cost applications. Convert data using GEOTIFF, BANDPASS, DEM2TGA7, DEM2POV2, MDEM2DEM, SDTS2DEM, BLACKART and other applications offered for free download.