GIS Dictionary

[data quality] A small gap in a raster line feature, usually considered to be an error caused by the poor quality of a source document or by the scanning process.

[network analysis] In network datasets, a type of junction connectivity policy in which junctions connect to other junctions based on the edge connectivity policy set by the user; junctions “honor” … Read more

1 [navigation] The apparent or visible junction of land and sky. 2 [astronomy] The horizontal plane tangent to the earth’s surface and perpendicular to the line through an observer’s position … Read more

The circle containing all points equidistant from the center of an azimuthal projection.

[navigation] The angle formed by the intersection of two lines in a horizontal plane.

A network of known horizontal geographic positions, referenced to geographic parallels and meridians or to other lines of orientation such as plane coordinate axes.

[geodesy] A geodetic datum for any extensive measurement system of positions, usually expressed as latitude-longitude coordinates, on the earth’s surface. A horizontal geodetic datum may be local or geocentric. If … Read more

1 [computing] In a computer network, the computer that contains data being accessed by other computers. 2 [computing] A computer connected to a TCP/IP network such as the Internet. Each … Read more

[ESRI software] In ArcView 3.x, a tool for associating external files with a feature in a view. When a user clicks a feature in the view with the Hot Link … Read more