Comprehensive collection of GIS software program applications and resources that is updated
frequently. Most are either freeware or open-source. They are organized in
alphabetical order.
TNTmips Free is a free version of TNTmips Pro for small-scale projects. TNTmips Free is not a demo, but a large, full-featured geospatial analysis software package. TNTmips Free is the same program as TNTmips Pro except that the license to use it free-of-charge limits the size, number, and complexity of the geodata layers you can use in your project.
uDig - The User-friendly Desktop Internet GIS (uDig) is both a GeoSpatial application and a platform through which developers can create new, derived applications. uDig is a core element in an internet aware Geographic Information System. It is a spatial data viewer/editor, with special emphasis on the OGC standards for internet GIS, the Web Map Server and Web Feature Server standards. uDig provides a common Java/Eclipse platform for building spatial applications with open source components.
UMN MapServer - The heart of UMN MapServer is a CGI-based application for delivering dynamic GIS and image processing content via the World-Wide Web (WWW). The package also contains a number of stand alone applications for building maps, scalebars and legends offline. Access to the development environment of MapServer is possible with a number of different programming languages.
USGS Formal metadata: information and software
USGS GeoData software - USGS and non-USGS public domain software that can be used to display or manipulate USGS digital data.
VGMap is a new library created by Eyebeam R&D that allows designers, developers, and mapping geeks to overlay data on top of Google Maps in a richer way than is possible using their standard system. It is called VGMap because it adds vector-drawing capability to the already-awesome GMap API.
Virtual Terrain Project (VTP). The goal of VTP is to foster the creation of tools for easily constructing any part of the real world in interactive, 3D digital form. This goal will require a synergetic convergence of the fields of CAD, GIS, visual simulation, surveying and remote sensing. VTP gathers information and tracks progress in areas such as procedural scene construction, feature extraction, and rendering algorithms. VTP writes and supports a set of software tools (VTP Toolbox) and an interactive runtime environment (VTP Enviro).
Vis5D is a system for interactive visualization of large 5-D gridded data sets such as those produced by numerical weather models. One can make isosurfaces, contour line slices, colored slices, volume renderings, etc of data in a 3-D grid, then rotate and animate the images in real time. There is also a feature for wind trajectory tracing, a way to make text anotations for publications, support for interactive data analysis, etc. GRASS can import and export Vis5D raster data.
Vis5D+ is intended as a central repository for enhanced versions and development work on Vis5d.
Water Resources Applications software - A collection of programs and utilities that are used in research and hydrologic studies to determine the quantity, quality, and location of water resources in the United States.
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