GIS Dictionary

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line

[Euclidean geometry] On a map, a shape defined by a connected series of unique x,y coordinate pairs. A line may […]

line connection

[ESRI software] A procedure that combines groups of individual lines with the same name into a single line for the

line event

[linear referencing] In linear referencing, a description of a portion of a route using a from- and to-measure value. Examples

line feature

[symbology] A map feature that has length but not area at a given scale, such as a river on a

line of sight

1 [3D analysis] A line drawn between two points, an origin and a target, that is compared against a surface

line simplification

[cartography] A generalization technique in which vertices are selectively removed from a line feature to eliminate detail while preserving the

line smoothing

The process of adding extra points to lines to reduce the sharpness of angles between line segments, resulting in a

line-on-line overlay

[linear referencing] In linear referencing, the overlay of two line event tables to produce a single line event table. The

line-on-point overlay

[linear referencing] In linear referencing, the overlay of a line event table and a point event table to produce a

lineage

[ESRI software] A collection of states representing the changes that have occurred over time in a versioned geodatabase.

linear dimension

A measurement of the horizontal or vertical dimension of a feature. Linear dimensions may not represent the true distance between

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