Vector buffers tntmips6/13/2023 Archived from the original on 21 October 2011. ^ "Project details for Quantum GIS - Quantum GIS 0.9.0".^ "Changelog for QGIS 2.0 - Quantum GIS is now known only as 'QGIS' "."Announcing the release of QGIS 1.0 'Kore' ". "Free GIS desktop and analyses: QuantumGIS, the easy way". ^ a b c Cavallini, Paolo (August 2007).Significant rewrite, upgrading to Qt5, PyQt5, and Python 3. New vector API, integration of SEXTANTE geoprocessing, symbology and labeling overhaul. Detailed changelogs are available for releases 2.0 and later. New Zealand's Land Information public service department.Swiss cantons of Glarus and Solothurn.National Geospatial-Intelligence Agency.Many public and private organizations have adopted QGIS, including: Two examples are the QGIS Browser and QGIS Server applications, which use the same code for data access and rendering, but present different front-end interfaces. It can be used for adding multiple map views, labels, legends, etc.Īs a free software application under GNU GPLv2, QGIS can be freely modified to perform different or more specialized tasks. In order to prepare printed map with QGIS, Print Layout is used. QGIS also makes it simple to share and publish geospatial data as maps, online services, or print maps in a variety of file formats, such as shapefiles, GeoTIFFs, and KML files. For more complex geographical analysis, users can additionally make use of plugins and algorithms. QGIS enables users to visualize their data using maps, charts, and diagrams while customizing the presentation with a variety of symbology choices.The capabilities for geographical analysis provided by QGIS, including as buffer construction, spatial querying, and geoprocessing. Several companies offer support and feature development services. As of 2012, developers have translated QGIS into 48 languages and the application is used internationally in academic and professional environments. QGIS is maintained by volunteer developers who regularly release updates and bug fixes. QGIS has a small install footprint on the host file system compared to commercial GISs and generally requires less RAM and processing power hence it can be used on older hardware or running simultaneously with other applications where CPU power may be limited. QGIS can also be used as a graphical user interface to GRASS. A mobile version of QGIS was under development for Android as of 2014. Īs of 2017, QGIS is available for multiple operating systems including Mac OS X, Linux, Unix, and Microsoft Windows. GDAL, GRASS GIS, PostGIS, and PostgreSQL are also recommended, as they provide access to additional data formats. In addition to Qt, required dependencies of QGIS include GEOS and SQLite. Written mainly in C++, QGIS makes extensive use of the Qt library. In 2013, along with release of version 2.0 the name was officially changed from Quantum GIS to QGIS to avoid confusion as both names had been used in parallel. Version 1.0 was released in January 2009. Gary Sherman began development of Quantum GIS in early 2002, and it became an incubator project of the Open Source Geospatial Foundation in 2007. QGIS can also be used with SAGA GIS and Kosmo. Plugins can geocode using the Google Geocoding API, perform geoprocessing functions similar to those of the standard tools found in ArcGIS, and interface with PostgreSQL/ PostGIS, SpatiaLite and MySQL databases. Plugins written in Python or C++ extend QGIS's capabilities. QGIS integrates with other open-source GIS packages, including PostGIS, GRASS GIS, and MapServer. Web services, including Web Map Service and Web Feature Service, are also supported to allow use of data from external sources. QGIS supports shapefiles, personal geodatabases, dxf, MapInfo, PostGIS, and other industry-standard formats. Multiple formats of raster images are supported, and the software can georeference images. Vector data is stored as either point, line, or polygon features. QGIS supports raster, vector and mesh layers. QGIS functions as geographic information system (GIS) software, allowing users to analyze and edit spatial information, in addition to composing and exporting graphical maps. QGIS is a free and open-source cross-platform desktop geographic information system (GIS) application that supports viewing, editing, printing, and analysis of geospatial data.
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