GIS Dictionary

[ESRI software] In Survey Analyst – Cadastral Editor, an XML stream or file containing the portion of the cadastral fabric that has been extracted by a cadastral fabric job for … Read more

The unit of measure, usually millimeters or inches, used to arrange map elements on a page for printing, as opposed to the coordinate system on the ground that the map … Read more

[map display] To shift a map image relative to the display window without changing the viewing scale.

[digital image processing] Sharpening a low-resolution multiband image by merging it with a high-resolution panchromatic image.

[remote sensing] Sensitive to light of all wavelengths in the visible spectrum.

[map design] A map spliced together from smaller maps of neighboring areas.

[photogrammetry] The apparent shift in an object’s position when it is viewed from two different angles.

[geodesy] An imaginary eastwest line encircling the earth, parallel to the equator and connecting all points of equal latitude. Also, the representation of this line on a globe or map.

[computing] In computer data communications, a method of storing or sending data side by side, in groups of bits. Parallel data transmission is most often used for printer ports.

1 [map projections] One of the variables that define a specific instance of a map projection or a coordinate system. Parameters differ for each projection and can include central meridian, … Read more

[mathematics] A curve that is defined mathematically rather than by a series of connected vertices. A parametric curve has only two vertices, one at each end.

1 [cadastral and land records] A piece or unit of land, defined by a series of measured straight or curved lines that connect to form a polygon. 2 [ESRI software] … Read more

[ESRI software] In Survey Analyst – Cadastral Editor, a set of dimensions entered to create a set construction line work.

[ESRI software] In Survey Analyst – Cadastral Editor, a set of parcels that exist as a group instead of individually in a cadastral fabric job.

[cadastral and land records] Acronym for parcel identification number. In Survey Analyst – Cadastral Editor, a unique identifier for a parcel. The format of an identifier is defined by the … Read more

[cadastral and land records] A classification for parcels, used to provide additional information about them and how they must be treated for least squares adjustment. Standard parcels, blocks, and easements … Read more

[ESRI software] In geodatabase editing, data in a source geodatabase that is replicated.

1 [computing] In computing, to divide a sequence of letters and numbers into parts, especially to test their agreement with a set of syntax rules. 2 [education] To break a … Read more

[geocoding] The ability to return a list of geocoding candidates based on incomplete address information. For example, if a city name but no country is entered in a partial address … Read more

[ESRI software] In ArcGlobe, an on-demand cache that contains levels of detail for areas that have been visited, or a pre-processed cache that has a specified, incomplete, level of detail … Read more

[spatial statistics use for geostatistics] A parameter of a covariance or semivariogram model that represents the variance of a spatially autocorrelated process without any nugget effect. In the semivariogram model, … Read more

[remote sensing] A remote-sensing system, such as an aerial photography imaging system, that only detects energy naturally reflected or emitted by an object.

[remote sensing] Imaging sensors that can only receive radiation, not transmit it.

[computing] A string of characters that a user must enter to access a computer, program, database, or Web site. Passwords are a means of protecting and restricting access to information … Read more

[3D GIS] A single triangular face inside a multipatch geometry. In most cases, many patches (faces) are used together to create a complex 3D model. Examples include geometric shapes, such … Read more

1 [network analysis] The connecting lines, arcs, or edges that join an origin to a destination. 2 [computing] In computing, the location of a computer file, given as the drive, … Read more

[spatial analysis] In ArcGIS Spatial Analyst, a description of each cell’s least accumulative cost relationship to a source or a set of sources, accounting for surface distance, horizontal cost factors … Read more

[ESRI software] A label that describes the nature of the association between the objects in a relationship. The forward path label describes the relationship when navigating from the origin to … Read more

[network analysis] The process of calculating the optimal path between an origin and a destination point or points in a network.

In image processing, the computer-based identification, analysis, and classification of objects, features, or other meaningful regularities within an image.