gvSIG

gvSIG was initially developped for the Generalitat Valenciana (gv), an institution of the self-governed autonomous community of Valencia. This explains the abbreviation gvSIG for which the last three letters stands for Sistema d'informació geogràfica (SIG), or GIS in English.

Typical tools in a full-fledged desktop GIS client can also be found in gvSIG, among other things:

• Access to vector formats: SHP, DXF, GML, DWG, DGN, KML.
• Access to raster formats: BMP, GIF, TIFF, JPEG, JP2, PNG, VRT, DAT of ENVI, ERDAS (LAN, GIS, IMG), PCI Geomatics (PIX, AUX), ADF of ESRI, ILWIS (MPR, MPL), MAP of PC Raster, ASC, PGM, PPM, RST of IDRISI, RMF, NOS, KAP, HDR, RAW.
• Access to remote services: OGC (WMS, WFS, WCS, WFS-T, WPS), ArcIMS, Ecwp.
• Access to databases and tables: PostGIS, ArcSDE, JDBC, CSV.
• Display:zooms, panning, frames, locator.
• Query: information, area and distance measurement, hyperlink.
• Selection: by point, by rectangle, by polygon, by layer, by polyline, by circle, by buffer zone, alphanumeric search, invert selection, delete selection.
• Searching: by attribute, by coordinates.
• Geoprocessing: buffer, intersection, clip, dissolve, union, convex hull, difference, merge, spatial join, XY shift, reprojection, Sextante geoprocessing.
• Graphical editing: add event layers, snapping, grid, flatness, command stack, undo/redo, copy, move, symmetry, rotate, scale, edit vertex, internal polygon, matrix, explode, split, join, autocomplete polygon, insert point, multipoint, line, arc, polyline, polygon, rectangle, square, circle, ellipse.
• Alphanumeric editing: manage fields, edit registers, field calculator.
• Catalogue and gazetteer services
• Vector representation: unique symbol, quantities (dot density, intervals, graduated symbols, proportional symbols), categories (expressions, unique values), multiple attributes, save/load legend, symbology constructor, symbology levels, symbology libraries.
• Raster representation: brightness, contrast, enhance, transparency by pixel, opacity, colour tables, gradients.
• Labeling: Static labeling, advanced labeling, individual labeling.
• Tables: statistics, filter, ascending/descending order, link, join, move selection, export, import fields, coding, normalization.
• Layout constructor: page layout, cartographic elements (view, legend, north, scale, frames, image, text, graphic), grid, templates.
• Printing: to PDF, to Postscript, export to several image formats.
• Network analysis: network topology, stops manager, minimum path, connectivity, minimum spanning tree, origin - destination matrix, emergency / nearest facilities provider, service areas.
• Raster and remote sensing: statistics, filters, histogram, scale range, enhance, save to raster file, vectorization, Region of Interest (ROI) definition, general components, georeferencing, geolocation, supervised classification, band algebra, image profiles, decision tree, main components, tasseled cap, image fusion, scatter diagram, mosaics.
• Publishing: MapServer's WCS, WMS and WFS, Geoserver's WFS.
• 3D and animation: 3D Views, XYZ-projected as well as spherical (planetary), 3D layers, 3D symbology, 3D editing, 3D framing, 2D and 3D animation, stereo viewing (horizontal split).
• Topology: topological building, topological editing, generalization, reverse line direction, polygons from/to lines, lines from/to points, Delaunay triangulation, Thiessen polygons, build, clean, topological error fixing (in Batch mode).
• Other: Coordinates Reference Systems manager, import from/export to WMC, scripting, translations manager.

Sextante[6] GIS has been ported to a plugin for gvSIG adding a host of raster and vector analysis functions in addition to gvSIG's impressive built-in vector analysis tools. Within Sextante, GRASS GIS can be used as extension to make its algorithms available to gvSIG users.[7]

gvSIG Mobile aims at broadening gvSIG execution platforms to a range of mobile devices, in order to give an answer to the needs of a growing number of mobile solutions users, who wish to use a GIS on different types of devices. So far, gvSIG Mobile is a Geographic Information System, as well as a Spatial Data Infrastructures client for mobile devices. Such a client is also the first one licensed under open source. gvSIG Mobile is known for:

• integrating in the same view both local and remote data through OGC standards.
• being open source software, under the GNU GPL v2, what allows its free use, distribution, study and improvement.
• being available in several languages (Spanish, English, German, French, ...) .
• being developed using Java, and it's available for platforms supporting Java Micro Edition CDC 1.1. So far, it runs on the following platforms: Windows Mobile 5.0, Windows Mobile 6.0 and Nokia Maemo[8]

Wikimedia Commons has media related to GvSIG.

• Official website
• GvSIG Association