GRASS GIS - Geographic Resources Analysis Support System

•    C++

Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modelling, and visualization of many types of data. GRASS supports raster and vector data in two and three dimensions. The vector data model is topological, meaning that areas are defined by boundaries and centroids; boundaries cannot overlap within a single layer.

QGIS - Geographical Information System (GIS)

•    C++

QGIS is an Open Source Geographic Information System. QGIS aims to be an easy to use GIS, providing common functions and features. The initial goal was to provide a GIS data viewer. QGIS has reached that point in its evolution and is being used by many for their daily GIS data viewing and editing needs. QGIS supports a number of raster and vector data formats, with new support easily added using the plugin architecture.

grass - GRASS GIS - free and open source Geographic Information System (GIS)

•    C

GRASS GIS (https://grass.osgeo.org/) is a Geographic Information System used for geospatial data management and analysis, image processing, graphics/map production, spatial modeling, and visualization. In general: you don't really need write access as you can simply open a pull request to contribute to GRASS GIS. See CONTRIBUTING file for more details.

Whitebox Geospatial Analysis Tools - An open-source GIS and remote sensing package

•    Java

Whitebox GAT is an open-source geographical information system (GIS) and remote sensing package. The Whitebox GAT project began in 2009 and was conceived as a replacement for the Terrain Analysis System (TAS). Whitebox GAT is intended to provide a platform for advanced geospatial data analysis with applications in both environmental research and the geomatics industry more broadly.

gis-tools-for-hadoop - The GIS Tools for Hadoop are a collection of GIS tools for spatial analysis of big data

The GIS Tools for Hadoop are a collection of GIS tools that leverage the Spatial Framework for Hadoop for spatial analysis of big data. The tools make use of the Geoprocessing Tools for Hadoop toolbox, to provide access to the Hadoop system from the ArcGIS Geoprocessing environment. Start out by navigating to samples and following the instructions provided with each sample.There are also tutorials for using the GP tools and aggregation methods.

JS-GIS

•    Javascript

JS-GIS (JavaScript Static Geographic Information System) is a client-side technology for viewing statically-published geographic data on a web browser. It consists of a JS API for writing data browsers, and documentation for writing JS-GIS publishers.

MapWindow 6 Desktop GIS

MapWindow 6 Alpha Desktop GIS is a lightweight open source geographic information system (GIS) built using C# and the open source DotSpatial library (see DotSpatial on CodePlex.com). MapWindow 6 Alpha Desktop GIS is intended to be a complete implementation of DotSpatial and su...

Creating-maps-in-R - Introductory tutorial on graphical display of geographical information in R.

•    TeX

This tutorial is an introduction to visualising and analysing spatial data in R based on the sp class system. For a guide to the more recent sf package check out Chapter 2 of the in-development book Geocomputation with R, the source code of which can be found at github.com/Robinlovelace/geocompr. Although sf supersedes sp in many ways, there is still merit in learning the content in this tutorial, which teaches principles that will be useful regardless of software. Specifically this tutorial focusses on map-making with R's 'base' graphics and various dedicated map-making packages for R including tmap and leaflet. It aims to teach the basics of using R as a fast, user-friendly and extremely powerful command-line Geographic Information System (GIS).

Quantum GIS

•    C++

NOTE - All project resources are now hosted at http://qgis.org. Quantum GIS (QGIS) is a Geographic Information System (GIS). QGIS supports common vector and raster formats, including Shapefiles, PostGIS, GRASS, GeoTiff, TIFF, JPG, and many more.

MapWinGIS - ActiveX Map and GIS Component

•    C++

MapWinGIS.ocx is a C++ based GIS programming ActiveX Control and API that can be added to a Windows Form in VB, C#, Delphi, etc. providing your app with a map.

HydroDesktop - Hydrologic Information System Desktop Application

•    CSharp

HydroDesktop is a free and open source GIS enabled desktop application that helps you search for, download, visualize, and analyze hydrologic and climate data registered with the CUAHSI Hydrologic Information System.

Proj.Net

A .NET 2.0 library that performs coordinate conversions between various geodetic coordinate systems for use in fx. Geographic Information Systems (GIS) or GPS applications. Support include: - Datum transformations - Geographic, Geocentric, and Projected coordinate systems - Comp

JUMP Database Query Plugin

•    Java

The JUMP DB Query Plugin is an extension for the OpenJUMP GIS platform that allows OpenJUMP users to give arbitrary database queries to retrieve and display geographic feature sets. Spatial databases currently supported are PostGIS, Oracle Spatial, MySQL, and SpatiaLite.

Gix Export Tool

This extension helps GIS developers to migrate ESRI ArcView projects to the most popular Free and Open Source alternatives for Geographic Information Systems (GIS), like Mapserver, JUMP, ArcExplorer, QGIS and Thuban.

django-rest-framework-gis - Geographic add-ons for Django REST Framework

•    Python

Geographic add-ons for Django Rest Framework - Mailing List. Provides a GeometryField, which is a subclass of Django Rest Framework (from now on DRF) WritableField. This field handles GeoDjango geometry fields, providing custom to_native and from_native methods for GeoJSON input/output.

KGIS

•    C++

KGIS it is a GIS aplication for KDE. (Geografic Information System) With a GIS aplication, it is possible to manipulate maps. The objective of KGIS is be the base for the development of GIS applications in KDE.

ALK-EDBS to WKT-Database Konverter

•    VB

Konverting the GIS-Format 'EDBS' to Spatial-Database 'PostGIS' using the 'Well Known Text'-Interface. EDBS is a German Fileformat from ALK (Automatisierte Liegenschaftskarte). So this GIS can be used for UNM-Mapserver and otehr OGC-conform GIS-Programms. Update: After ALK in Germany ist replaced by ALKIS, edbs2wkt will not be further developed. Use http://postnas.org (gdal/ogr) for ALKIS-Interface-Format quot;NASquot;.

SQL Spatial Tile Render Engine

•    DotNet

CLR CSharp application to render a set of GIS spatial images directly from SQL Server as rowset data using standard T-SQL language extended for simplicity . C# 3.5 32 or 64 bit extension for SQL server 2008

MsSqlSpatial

MsSqlSpatial - Spatial Extensions for Microsoft SQL Server 2005 This project conforms to OGC Simple Features Specification for SQL Revision 1.1 and provides other useful features to power your GIS application.

VR GIS

•    Delphi

Vector Raster Geographic Information Synthesis. Incorporates Vector: Vector processing, Image processing, Digital Elevation Model DEM processing. These data can be combined to be viewed in 3D. Multitude of system organization aids.