Geographic Information Systems

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QGIS is a cross-platform GIS application licensed under the GNU General Public License.
33113 questions
7 asked today, 75 this week
when ArcGIS Desktop is the product you are using but also tag for the application (ArcGIS Pro or ArcMap) that you are using.
19903 questions
15 asked this week, 56 this month
Python is an open source interpreted programming language used in many GIS programs.
10122 questions
19 asked this week, 103 this month
A site-package created by Esri to expose ArcGIS Desktop (ArcMap and ArcGIS Pro) geoprocessing, mapping, etc, to Python.
9637 questions
16 asked this week, 46 this month
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
8346 questions
14 asked this week, 92 this month
PostGIS is an extension for the PostgreSQL object-relational database that adds support for geographic objects.
8200 questions
12 asked this week, 43 this month
A reference framework consisting of a set of points, lines, and/or surfaces, and a set of rules, used to define the positions of points in space in either two or three dimensions. This tag also refers…
7068 questions
12 asked this week, 52 this month
ArcMap is the former flagship application of ArcGIS Desktop and the tag for that (arcgis-desktop) should also be added for any questions about its GUI
6601 questions
16 asked this week, 56 this month
Python bindings for QGIS.
6024 questions
8 asked this week, 52 this month
GDAL (Geospatial Data Abstraction Library) is an open source translator library for raster and vector geospatial data formats.
5156 questions
17 asked this week, 50 this month
GeoServer is an open source software server written in Java that allows users to share and edit Geospatial data.
5113 questions
12 asked this week, 36 this month
A vector data storage format for storing the location, shape, and attributes of geographic features. Often referred to as 'an ESRI shapefile', as ESRI developed it.
4916 questions
10 asked this week, 44 this month
Statistical computing language and software environment.
4730 questions
10 asked this week, 62 this month
On a map, a closed shape defined by a connected sequence of x,y coordinate pairs, where the first and last coordinate pair are the same and all other pairs are unique.
3608 questions
30 asked this month, 448 this year
PostgreSQL is an open source object-relational database system.
3606 questions
20 asked this month, 340 this year
An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps
3585 questions
9 asked this week, 26 this month
when ArcGIS 10.0 is the version you are using from the ArcGIS platform.
3579 questions
15 asked this year
for questions specific to the 3.x series of QGIS.
3542 questions
10 asked this week, 52 this month
Google's cloud computing platform for geospatial data & analysis at earthengine.google.com.
3500 questions
32 asked this week, 121 this month
when you are using the DEPRECATED version 2.x of the OpenLayers JavaScript client toolkit.
3299 questions
16 asked this year
JavaScript is a prototype-based, object-oriented scripting language that is dynamic, weakly typed and has first-class functions.
3192 questions
12 asked this week, 29 this month
Use when the version you are using of the OpenLayers JavaScript client toolkit is 3 or later
3154 questions
6 asked this week, 15 this month
when ArcGIS 10.1 is the version you are using from the ArcGIS platform.
3087 questions
11 asked this year
when ArcGIS 10.2 is the version you are using from the ArcGIS platform.
2960 questions
24 asked this year
OpenStreetMap is a collaborative project to create a free editable map of the world. The data is free, and free of legal and technical restrictions. OpenStreetMap is often shortened to OSM.
2887 questions
13 asked this month, 216 this year
when ArcGIS for Server is the product you are using from the ArcGIS platform.
2691 questions
10 asked this month, 102 this year
Software plugins that add functionality to the QGIS package
2563 questions
20 asked this month, 282 this year
ArcObjects is a set of COM-based APIs from ESRI Inc. that are used in several of their products including ArcGIS Desktop, ArcGIS Engine and ArcGIS Server.
2447 questions
29 asked this year
GeoJSON is a geospatial data interchange format based on JavaScript Object Notation (JSON)
2237 questions
19 asked this month, 263 this year
GRASS GIS (Geographic Resources Analysis Support System) is a free, open source geographical information system (GIS) specialized in handling raster, topological vector, image processing, and graphic …
2067 questions
9 asked this month, 157 this year
An application of ArcGIS Pro and also of ArcGIS Desktop 10.x that is used to create, edit and manage models within its Geoprocessing Framework
2064 questions
10 asked this month, 105 this year
allows you to perform calculations on the basis of existing attribute values or defined functions in QGIS, ArcGIS, etc.
2042 questions
20 asked this month, 220 this year
A Web Map Service (WMS) is a standard protocol for serving georeferenced map images over the Internet
2030 questions
12 asked this month, 175 this year
Use when your question is about one of the versions of the ArcGIS Pro application of ArcGIS Desktop
1998 questions
9 asked this week, 54 this month
For questions about ArcGIS API for JavaScript 2.x and 3.x. For 4.x use arcgis-javascript-api-4 instead
1996 questions
5 asked this month, 65 this year
Rendering values from attribute tables as text on maps near their feature. For questions about legend labels use the [legend] tag instead.
1944 questions
17 asked this month, 216 this year
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