Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange


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.

× 548
Questions related to GIS objects that have three dimensions.
× 547
To join the attributes from one spatial data layer to another using their common location
× 543
a spatial extension to SQLite, providing vector geodatabase functionality.
× 536
Google's virtual globe application that allows users to view 3D buildings, imagery, terrain, any other information stored in KML files.
× 531
the minimum bounding box/rectangle (xmin, ymin and xmax, ymax) defined by coordinate pairs of a data source. All coordinates for the data source fall within this boundary.
× 530
Software for which the original source code is made freely available and may be redistributed with or without modification.
× 521
The vertical distance of a point or object above or below a reference surface or datum (generally mean sea level).
× 521
For questions about ArcGIS Python Parser for labelling expressions and field calculations
× 518
To bring data from one computer system or application into another.
× 517
The field of study concerning statistical methods that use space and spatial relationships (such as distance, area, volume, length, height, orientation, centrality and/or other spatial characteristics…
× 512
a computer operating system based on the Debian Linux distribution and distributed as free and open source software, using its own desktop environment.
× 506
retrieve information from a database
× 503
a quantity that expresses the extent of a two-dimensional surface or shape, or planar lamina, in the plane.
× 479
Routing consists of finding optimal paths along geographic networks such as roads or trail systems.
× 479
solve problems with a series of steps. Algorithms are usually encoded as a sequence of computer commands.
× 473
An application programming interface specific to Google Maps.
× 473
a spreadsheet application from Microsoft with native *.xls and *.xlsx formats.
× 465
The process of sorting or arranging entities into groups or categories; on a map, the process of representing members of a group by the same symbol, usually defined in a legend.
× 462
SAGA (System for Automated Geoscientific Analyses) is a GIS toolbox with many modules that can be used from the GUI, command line or accessed through R,python or directly using C++.
× 462
A Geospatial Data Abstraction Library (GDAL) image mosaicing, reprojection, and warping utility.
× 455
a database that is optimized to store and query data that is related to objects in space, including points, lines and polygons.
× 442
an open source Python package for construction and analysis of 2D planar geometric objects common to geographic information systems.
× 436
To select data records according to logical criteria applied to their field values ("attributes")
× 434
Topology describes non-metric relationships among geometric figures, such as adjacency, containment, and orientation. It is a branch of Mathematics, which deals in geometry without measurement.
× 426
Version 2.0 of PostGIS brought a heavy set of new extensions for the PostgreSQL object-relational database, adding greater support for spatial objects.
× 424
Questions about data from the Moderate-Resolution Imaging Spectroradiometer sensors aboard the Terra and Aqua satellites.
× 413
the act of outputting GIS data to paper or to a file
× 411
A series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey.
× 410
A set of data elements arranged in rows and columns.
× 407
when ArcGIS 10.5 is the version you are using from the ArcGIS platform.
× 405
An interconnected set of points and lines that represent possible routes from one location to another, OR in computing, a group of computers connected in order to share software, data, and peripheral …
× 402
Partitioning data points into subsets of objects according to their mutual "similarity," without using preexisting knowledge such as class labels.
× 394
Features that share some or all of their spatial location with other features.
× 391
a geodetic coordinate system, the World Geodetic System 1984 (EPSG:4326).
× 388
An extension to ArcGIS that allows for the creation, visualization, and analysis of three-dimensional data.
× 381
used to quickly identify vegetation and its condition in remotely-sensed data.