Each 7.5 minute unit of DEM coverage(based on the 7.5 minute quadrangle) consists of a regular array of elevations referenced horizontally in the UTM projection co-ordinate system.
Partial feature list:
Creates color shaded relief maps
Imports USGS DEMs, SDTS, GTOPO 30, and grayscale DEMs
Exports landscapes as USGS DEMs, DXF, 3DMF and grayscale files
Creates QuickTime VR 360 degree panoramas
Lets you import, position, and render QuickDraw 3D (3DMF) objects
Saves animations as QuickTime movies
Lets you combine adjacent terrain models
Saves pictures as BMP or TIFF in 8 or 24-bit color
Adjustable resolution and color
Cost ~ 200$
Outputs 3dStudio(.3ds), autocad (.DXF) , .PGM,.DEM, .WRL among others..includes 2D outputs and animation outputs
LandSerf- DEM to ArcInfo TIN format and the other way around
TIN generation/interpolation (TIN-Triangulated Irregular Networks)
Fractal surface generation
http://www.geog.le.ac.uk/jwo/research/LandSerf/landserf17/doc/index.html
Converting DEMs to various projections
Foot to Meter
NAD to NAD
Change Projection
Convert from STDS, cdo. or CorpsCom to an ZYX format.
Merge multiple DEM files into one continuos DEM.
Input formats- TARGA,TIFF, PCX, SPOT, LANDSAT, ARC/Info, DXF, MOSS,DLG,DGN,DEM,GRASS, TIGER etc..
Site maintained by Erik Rubin errubin@vt.edu