Free gis software for windows

DOLGIS 2D is a useful application with the help of which you can create and exploit 2D maps with databases.
Rapid development of powerful personal computers has broadened the user base of GIS software, and widened the scope of GIS applications. However, the gigantic size of existing GIS software programs makes their structure heavy, and their query response time slow. Digitizing objects on paper maps can take days instead of minutes. Additionally, unwanted errors during the digitizing process have been an ever-present danger with existing software programs, a negative factor which DolGIS eliminates.
These obstacles have prevented GIS software from developing into a popular product that can be used to its full applications potential. Dolsoft has created GIS software that provides the industry with significant improvements in performance, while, at the same time, eliminating the traditional product failures.
DolSoft?s upgraded software, DOLGIS , helps mapmakers, surveyors, city administrators, urban planners, architects, construction companies, transportation departments and other organizations to efficiently make, manage, analyze, report, and store their maps and plan portfolios.
DolGISs foundation is its powerful algorithm, operating in its creative and advanced proprietary architecture. It enables fully automatic vectorization and virtual links with other data. Thanks to this innovative design, GIS services can be provided either entirely with desktop DolGIS , or partially through any modular combination. DolGIS provides access to any data set in real time. Its powerful features allow operators to quickly access, search, analyze and even edit a variety of objects. DolGIS also has a built-in database program, created to meet any database needs. These many features are the big difference between DOLGIS and the equivalent products from other vendors.
DolGIS special version for management Topology features (DolGIS Topo) allows users to handle all specific problem of management system network like: water supply, telephone, electric network, traffic set,? Powerful algorithm allows users to find solution for problem in few seconds. This version finds huge application in reality for enhancement of management network system.
DolGIS is the most compact GIS software available, and works perfectly in the PC environment. This feature eliminates the cost of purchasing expensive hardware to run a massive GIS software program.

The TatukGIS Viewer opens most GIS/CAD and raster image file types and most ArcView, ArcExplorer, and MapInfo projects. Besides just opening and viewing files, the Viewer supports an extensive list of features including layer properties control, legend control, thematic mapping, spatial and attribute querying, custom labeling, on map measurements, PDF export and much more. The user interface is available in 15 different languages.
Because the GIS Viewer is compiled from the TatukGIS Developer Kernel toolkit, it provides an easy way to evaluate the TatukGIS technology and support for various data formats and common GIS functionality. The free Viewer can be used to generate TatukGIS project files that are compatible with any other TatukGIS product or custom applications created from the TatukGIS DK toolkit. The Viewer can generate simple ASP.NET projects for web publishing with the TatukGIS Internet Server.
The TatukGIS Editor product extends the free Viewer by adding an extensive set of features for editing, digitizing, merging, exporting, converting between formats, building/correcting map topological, etc. GIS shapefile map data.

Algolab Raster to Vector Conversion CAD/GIS SDK is a software development kit for GIS/CAD/CAM and graphics software developers.
Converts from raster to vector and refines architect, mechanical, tech drawing, maps, math graphs, graphics for books and journals and more. ActiveX and Com Component are also available.
Refines vector graphics, creates fine lines and shapes. Scanned drawings are recognized and represented in a vector format to be imported to your CAD or drawing program.
Output in vector formats DXF (AutoCAD), AI (Adobe Illustrator), EMF ( Enhanced metafile, WMF and ASCII XY ( MS Excel, Mathematica, Lotus 123 etc.).

ILWIS for Windows is a Windows-based, integrated GIS and Remote Sensing application. ILWIS integrates image, vector and thematic data in one unique and powerful desktop package.
ILWIS will provide you a wide range of feautures including import/export, digitizing, editing, analysis and display of data, as well as production of quality maps.
ILWIS functionality for vectors includes: digitizing with mouse and/or digitizer, interpolation from isolines or points, calculation of segment or point density, pattern analysis.
ILWIS functionality for raster includes: distance calculation, creation of a Digital Elevation Model (DEM), calculation of slope/aspect, deriving attribute maps, classifying maps, manipulating maps with iff-statements, with Boolean logic, crossing maps, etc.
For satellite imagery: creation of histograms, color composites, sampling and classification, filtering, multi-band statistics.
Furthermore ILWIS provides import and export routines, editing of point, segment, polygon and raster maps, change of projection/coordinate systems of maps, and output possibilities with annotation.
With Windows, you can start one operation and keep it running while you start one or more additional applications. This is a sort of multitasking. You may work with both Windows and DOS application programs, you can perform one or more ILWIS calculations in the background and at the same time display maps, run other ILWIS operations, print, etc.
Main features:
- Integrated raster and vector design
- Import and export of widely used data formats
- On-screen and tablet digitizing
- Comprehensive set of image processing tools
- Orthophoto, image georeferencing, transformation and mosaicing
- Advanced modeling and spatial data analysis
- 3D visualization with interactive editing for optimal view findings
- Rich projection and coordinate system library
- Geo-statisitical analyses, with Kriging for improved interpolation
- Production and visualization of stereo image pairs
- Spatial Multiple Criteria Evaluation