MacDEM is an application to view and edit digital elevation model (DEM) files.Merge DEM files togetherResample and crop DEMsDisplay DEMs in shaded relief, with user-definable color mapsExport shaded relief images to PICT, TARGA, and TIFF formatsExport elevation data to USGS ASCII, binary, PGM (e.g. for Bryce), 16-bit Photoshop, and POV-RayWrite World Files (.tfw)Make contour maps
Import elevation data in these formats:USGS ASCII DEMSDTS DEMNational Elevation Dataset GridFloat and BILDTED (Level 0, 1, and 2)GTOPO30GLOBETerrainBaseArc-ASCII-GRIDPGMSRTM - Shuttle Radar Topography MissionRaw ASCIIRaw Binary files
What's new in this version:
Improved USGS DEM exporter to conform to specification. The old version of the exporter is still available under the File menu as "USGS ASCII chop" in case it is needed for compatability with old software. Fixed error reading and writing datum information. Updated Arc importers to allow DOS, Unix, and Mac line endings in text files. Also allow GridFloat file names to end in .bin in addition to .flt
