GRASS
Category Geographical information systems
Publisher  Baylor University 
Platform Win95/98, WinNT, UNIX, Linux, Sun Solaris, SG Irix, HP-UX, DEC-Alpha
Status Public domain
Description GRASS (Geographic Resources Analysis Support System) is a GIS used for data management, image processing, graphics production, spatial modelling, and visualisation of many types of data. It allows users to analyse, store, update, model, and display data. Originally written by the U.S. Army Construction Engineering Research Laboratories for use in land planning, its capabilities have been expanded and used in the fields of engineering, hydrology, geology, physics, statistics, remote sensing, business etc. It is run through the use of either a standardised command line input, or a Windows interface based on Tcl and Tk. There is an internal language that allows users and programmers to create new applications and link it to other software packages. Data formats supported: Raster, Image (satellite and air-photo), Vector, Sites. Import / export formats: DXF, Image, ASCII etc. Data Management capabilities: Spatial analysis, Data generation through modelling, Map generation, Link to DBMS, Data visualisation, Data storage. New features of version 5.0 include: support for floating-point numbers and the separation of 0 and null. Two new visualisation interfaces in the form of Tcl/Tk and Nviz. Nviz (available for SGI platforms) allows users to realistically render multiple surfaces in 3D space, drape vector files over surfaces, and display site files either on surfaces or as 3D points. Tcl/Tk provides a platform-independent windowing system.
Cost UNIX version free on WWW. Windows versions US Dollars 150 to 250
Data formats supported Drawings  :  DXF 
Mapping and GIS  :  GRASS 
Supplier in United States of America  Baylor University 

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