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Geographic Resources Analysis Support System
Description: Commonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.
Added on: 13-Jun-2006 Hits: 13
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Google Earth
Description: Want to know more about a specific location? Dive right in -- Google Earth combines satellite imagery, maps and the power of Google Search to put the world's geographic information at your fingertips. Google Earth puts a planet's worth of imagery and other geographic information right on your desktop. View exotic locales like Maui and Paris as well as points of interest such as local restaurants, hospitals, schools, and more.
Added on: 13-Jun-2006 Hits: 18
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gvSIG
Description: gvSIG is a tool oriented to manage geographic information. gvSIG project is characterized by a user-friendly interface, with a quick access to the most usual raster and vector formats. In the same view it includes local as well as remote data through a WMS or WFS source. It is aimed at users of geographic information, whether professionals or civil servants (city councils, councils, regional councils or ministries) from any part of the world ( at the moment its interface is in Spanish, Valencian, English, Basque, Czech , French, German, Italian and Portuguese), in addition to being freeware. Given its freeware nature (open source) it is highly interesting for the international community of developers and, in particular, for university settings due to its R&D&I component. In fact, special emphasis has been placed on the expansion of the project so that potential developers can easily expand the functions of the application, as well as develop completely new applications from the libraries used in gvSIG (as long as they comply with the GPL license).
Added on: 13-Jun-2006 Hits: 21
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mesh2hmap
Description: mesh2hmap is a simple command line tool for converting 3D meshes to raster heightmaps. This tool allows you to create terrains in your favourite 3D modeller and then easily convert to a heightmap. Currently mesh2hmap reads only VRML meshes (1 and 2) and outputs a portable grey map (PGM) or portable pixel map (PPM). A PPM is output only when a colour gradient heightmap has been specified.
Added on: 13-Jun-2006 Hits: 17
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mezoGIS
Description: mezoGIS is a GIS application, a graphical interface to query and analyse spatial data. mezoGIS does not store or compute data directly, but operates external PostGIS databases. The goal of mezoGIS is to provide a tool for geo-spatial analysis with PostGIS, through on-the-fly SQL queries as well as through larger, external plugin scripts. There are other, excellent open source applications that can display PostGIS data sets (like QGis or GRASS). Those projects, however, expect properly indexed tables as an input, and don't provide a built-in functionality to launch SQL queries. The focus of mezoGIS is to stay close to the SQL workflow: Spatial queries are launched through manually entered SQL commands, and result sets containing geometry are displayed as map layers. The first public release of mezoGIS was in march 2006. mezoGIS is entirely written in the python programming language, for gtk+. While optimized for the GNOME Desktop, it runs well on other desktops and window managers, as well as on windows.
Added on: 13-Jun-2006 Hits: 26
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MMap
Description: MMap is a GTK2 map viewer. MMap project supports Blue Marble, Land Sat 7, Watchizu, SRTM. You can show a part of World Wind data with OpenGL 3D graphics. It supports (a part of) these maps: · Watchizu · Blue Marble · Land Sat 7 · SRTM
Added on: 13-Jun-2006 Hits: 21
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Roadnav
Description: Roadnav is an in-car navigation system capable of running on a variety of operating systems, including Linux, Windows, and Mac OS X. Roadnav can obtain a car's present location from a GPS unit, plot street maps of the area, and provide verbal turn by turn directions to any location in the USA. Roadnav uses the free TIGER/Line files from the US Census Bureau to build the maps, along with the GNIS state and topical gazetteer data from the USGS to identify locations.
Added on: 13-Jun-2006 Hits: 15
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Seismic Toolkit
Description: Plot SAC ASCII and SAC_BIN data format, with zoom,unzoom, plot channel by channel, or plot all channel (until 2000, tested with 125). Filtering the data: all filters are causal recursive IFR (Infinite Impulse Response) written using the bilinear Z-transform in the time domain. Their conception using a few number of coefficents gives them very fast with a low memory cost. The adaptation factor of frequency warants no deformation in the frequency domain of the transfert function. The main filters used are the following: Butterworth High-Pass and Low-Pass (n order), Farrer 10s-6s Low-Pass (a combination of rejector and Low-Pass specially designed for removing oceanic noise), Integrator, Derivator, Integrator with cut-off frequency, Derivator with cut-off frequency, Trend removing, Rejector (n-order), Envelop with Hilbert (not recursive at all), compensator of (n-order), Polynomial filter (n-order, not recursive at all ). Data plotting : channel by channel, all channels, zoom, unzoom, unfilter, instantaneous time and amplitude informations with mouse pointer. Fourier domain: Power Spectral Density (PSD) in linear-linear, log-log axes; independant windows for each channel, instantaneous frequency and amplitude informations with mouse pointer, zoom, unzoom of spectra. Dirac, Hilbert transform, Time-Frequency representation (tested until 1 million of points per channel on 3 channels. Polarization : easy and fast particule motion representation in both horizontal plane and incidence plane, with automatic computation of best direction with eigen vectors of the covariance matrix. Display of linearity and planearity coefficient.
Added on: 13-Jun-2006 Hits: 14
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Trip Tracker
Description: Trip Tracker is a position tracking client-server system. It's designed to assist people in setting up a realtime tracking environment with either a private or public tracking server. The Trip Tracker GPS client sends coordinates to the tracking server to update its position. In the event that the GPS client loses its Internet connection it can send all collected coordinates to the tracking server as soon as it's back online. The tracking server saves all the coordinates and can forward them to listening map clients.
Added on: 13-Jun-2006 Hits: 21
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Viking
Description: Viking is a free/open source program to manage GPS data. You can import and plot tracks and waypoints, show Terraserver maps under it, add coordinate lines, make new tracks and waypoints, hide different things, etc. It is written in C with the GTK+ 2 toolkit, available for Linux, other POSIX operating systems, and Windows, and is licensed under the GNU GPL
Added on: 13-Jun-2006 Hits: 28
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