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Geographic Information Systems

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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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QGIS is a cross-platform GIS application licensed under the GNU General Public License.
42796 questions
15 asked this week, 62 this month
when ArcGIS Desktop is the product you are using but also tag for the application (ArcGIS Pro or ArcMap) that you are using.
21013 questions
42 asked this year
Python is an open source interpreted programming language used in many GIS programs.
12245 questions
12 asked this month, 164 this year
A site-package created by Esri to expose ArcGIS Desktop (ArcMap and ArcGIS Pro) geoprocessing, mapping, etc, to Python.
10656 questions
6 asked this month, 52 this year
Raster is a data format consisting of regular grids of values, usually stored in an image-like format.
10152 questions
172 asked this year
PostGIS is an extension for the PostgreSQL object-relational database that adds support for geographic objects.
9580 questions
8 asked this month, 102 this year
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…
8610 questions
6 asked this month, 168 this year
Python bindings for QGIS.
7888 questions
196 asked this year
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
7828 questions
20 asked this year
GDAL (Geospatial Data Abstraction Library) is an open source translator library for raster and vector geospatial data formats.
6405 questions
7 asked this month, 144 this year
GeoServer is an open source software server written in Java that allows users to share and edit Geospatial data.
6022 questions
7 asked this month, 91 this year
Statistical computing language and software environment.
5979 questions
75 asked this year
Google's cloud computing platform for geospatial data & analysis at earthengine.google.com.
5824 questions
7 asked this month, 180 this year
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.
5684 questions
55 asked this year
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.
4631 questions
83 asked this year
for questions specific to the 3.x series of QGIS.
4544 questions
99 asked this year
PostgreSQL is an open source object-relational database system.
4242 questions
40 asked this year
An Open-Source JavaScript Library for Mobile-Friendly Interactive Maps
4192 questions
17 asked this year
Use when your question is about one of the versions of the ArcGIS Pro application of ArcGIS Desktop
4082 questions
13 asked this month, 221 this year
Use when the version you are using of the OpenLayers JavaScript client toolkit is 3 or later
3708 questions
41 asked this year
when ArcGIS 10.0 is the version you are using from the ArcGIS platform.
3556 questions
1 asked this year
JavaScript is a prototype-based, object-oriented scripting language that is dynamic, weakly typed and has first-class functions.
3339 questions
1 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.
3316 questions
60 asked this year
when you are using the DEPRECATED version 2.x of the OpenLayers JavaScript client toolkit.
3289 questions
Software plugins that add functionality to the QGIS package
3144 questions
7 asked this month, 100 this year
when ArcGIS 10.1 is the version you are using from the ArcGIS platform.
3068 questions
when ArcGIS 10.2 is the version you are using from the ArcGIS platform.
2963 questions
1 asked this year
when ArcGIS for Server is the product you are using from the ArcGIS platform.
2748 questions
8 asked this year
GeoJSON is a geospatial data interchange format based on JavaScript Object Notation (JSON)
2691 questions
34 asked this year
allows you to perform calculations on the basis of existing attribute values or defined functions in QGIS, ArcGIS, etc.
2549 questions
35 asked this year
A geometric element defined by a pair of x,y coordinates.
2476 questions
60 asked 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.
2468 questions
1 asked this year
Rendering values from attribute tables as text on maps near their feature. For questions about legend labels use the [legend] tag instead.
2448 questions
82 asked this year
A layer is a collection of information. It contains specific elements of a gis in a specific presentation method (e.g raster or vector layer). Layers can be edited separately in order to create indivi…
2428 questions
76 asked this year
A Web Map Service (WMS) is a standard protocol for serving georeferenced map images over the Internet
2399 questions
42 asked this year
The set of conventions, rules, or encoding systems that define how geographic features are represented with symbols on a map.
2379 questions
68 asked this year
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