GitHub |
您所在的位置:网站首页 › webapp源码下载 › GitHub |
QGIS is a full-featured, user-friendly, free-and-open-source (FOSS) geographical information system (GIS) that runs on Unix platforms, Windows, and MacOS. Features 1. Flexible and powerful spatial data management 2. Beautiful cartography 3. Advanced and robust geospatial analysis 4. Powerful customization and extensibility 5. QGIS Server Under the hood Versions and release cycle Free and Open Source Installing and using QGIS Documentation Help and support channels Get involved with the community Bug reporting and bug fixing New features and enhancements Translations Other ways to contribute Features 1. Flexible and powerful spatial data management Support for raster, vector, mesh, and point cloud data in a range of industry-standard formats Raster formats include: GeoPackage, GeoTIFF, GRASS, ArcInfo binary and ASCII grids, ERDAS Imagine SDTS, WMS, WCS, PostgreSQL/PostGIS, and other GDAL supported formats. Vector formats include: GeoPackage, ESRI shapefiles, GRASS, SpatiaLite, PostgreSQL/PostGIS, MSSQL, Oracle, WFS, Vector Tiles and other OGR supported formats. Mesh formats include: NetCDF, GRIB, 2DM, and other MDAL supported formats. Point-cloud format: LAS/LAZ and EPT datasets. Data abstraction framework, with local files, spatial databases (PostGIS, SpatiaLite, SQL Server, Oracle, SAP HANA), and web services (WMS, WCS, WFS, ArcGIS REST) all accessed through a unified data model and browser interface, and as flexible layers in user-created projects Spatial data creation via visual and numerical digitizing and editing, as well as georeferencing of raster and vector data On-the-fly reprojection between coordinate reference systems (CRS) Nominatim (OpenStreetMap) geocoder access Temporal supportExample: Temporal animation Example: 3D map view Example: Map of Bogota, Colombia in the style of Starry Starry Night, by Andrés Felipe Lancheros Sánchez For more maps created with QGIS, visit the QGIS Map Showcase Flickr Group. Example: Travel isochrones Example: Model designer Example: Style manager Example: Plugins Headless map server -- running on Linux, macOS, Windows, or in a docker container -- that shares the same code base as QGIS. Industry-standard protocols (WMS, WFS, WFS3/OGC API for Features and WCS) allow plug-n-play with any software stack Works with any web server (Apache, nginx, etc) or standalone All beautiful QGIS cartography is supported with best-in-class support for printing Fully customizable with Python scripting supportExample: QGIS server WMS response Example: QGIS server WFS response QGIS is developed using the Qt toolkit and C++, since 2002, and has a pleasing, easy to use graphical user interface with multilingual support. It is maintained by an active developer team and supported by vibrant community of GIS professionals and enthusiasts as well as geospatial data publishers and end-users. Versions and release cycleQGIS development and releases follow a time based schedule/roadmap. There are three main branches of QGIS that users can install. These are the Long Term Release (LTR) branch, Latest Release (LR) branch, and the Development (Nightly) branch. Every month, there is a Point Release that provides bug-fixes to the LTR and LR. Free and Open SourceQGIS is released under the GNU Public License (GPL) Version 2 or any later version. Developing QGIS under this license means that you can (if you want to) inspect and modify the source code and guarantees that you, our happy user will always have access to a GIS program that is free of cost and can be freely modified. QGIS is part of the Open-Source Geospatial Foundation (OSGeo), offering a range of complementary open-source GIS software projects. Installing and using QGISPrecompiled binaries for QGIS are available at the QGIS.org download page. Please follow the installation instructions carefully. The building guide can be used to get started with building QGIS from source. For installation of QGIS Server, see its getting started documentation. DocumentationA range of documentation is available. This includes: Training Manual QGIS User Guide QGIS Server Guide Visual Changelog Documentation Guidelines QGIS Python (PyQGIS) Cookbook QGIS Python (PyQGIS) API QGIS C++ API Developers Guide Help and support channelsThere are several channels where you can find help and support for QGIS: Using the QGIS community site Joining the qgis-users mailing list Chatting with other users real-time. Please wait around for a response to your question as many folks on the channel are doing other things and it may take a while for them to notice your question. The following paths all take you to the same chat room: Using an IRC client and joining the #qgis channel on irc.freenode.net. Using a Matrix client and joining the #qgis:matrix.org room. Using Gitter chat. At the GIS stackexchange or r/QGIS reddit, which are not maintained by the QGIS team, but where the QGIS and broader GIS community provides lots of advice Other support channels Get involved with the community Bug reporting and bug fixingYou can help us by submitting bug reports or fixing bugs in the QGIS bug tracker. New features and enhancementsIf you wish to contribute patches you can: fork the project make your changes commit to your repository and then create a pull request.The development team can then review your contribution and commit it upstream as appropriate. If you commit a new feature, add [FEATURE] to your commit message AND give a clear description of the new feature. The label Needs documentation will be added by maintainers and will automatically create an issue on the QGIS-Documentation repo, where you or others should write documentation about it. For large-scale changes, you can open a QEP (QGIS Enhancement Proposal). QEPs are used in the process of creating and discussing new enhancements or policy for QGIS. TranslationsPlease help translate QGIS to your language. At this moment about forty languages are already available in the Desktop user interface and about eighty languages are available in transifex ready to be translated. The translation process is managed by the Translation Team and all the activities are done under the Transifex platform. Other ways to contributeIf you are not a developer, there are many other possibilities which do not require programming skills to help QGIS to evolve. Check our project homepage for more information. |
今日新闻 |
推荐新闻 |
CopyRight 2018-2019 办公设备维修网 版权所有 豫ICP备15022753号-3 |