GIS Dictionary

[data editing] The creation of a segment at an angle relative to an existing segment.

[geodesy] A unit of angular measure represented by the symbol . The earth is divided into 360 degrees of longitude

The unit of measure for describing latitude and longitude. A degree is 1/360th of a circle. A degree is further

[3D analysis] The components of Delaunay triangulation. Delaunay triangles cannot exist alone; they must exist as part of a set

[3D analysis] A technique for creating a mesh of contiguous, nonoverlapping triangles from a dataset of points. Each triangle’s circumscribing

[database structures] The geodatabase system table, created when a feature class or table is registered as versioned, that maintains information

[computing] A character, such as a space or comma, that separates words or values.

[data editing] A file that contains data edits that can be exchanged between geodatabases or between geodatabases and other data

[database structures] One of two geodatabase system tablesthe adds and deletes tablescreated for a feature class or table when it

[data models] Acronym for digital elevation model. The representation of continuous elevation values over a topographic surface by a regular

[geography] The statistical characteristics (such as age, birth rate, and income) of a human population.