Planar Coordinate System: A coordinate system drawn on a flat surface, or plane. Planar coordinates are usually expressed as pairs of rectangular X,Y values.
planar coordinate system
A two-dimensional measurement system that locates features on a plane based on their distance from an origin (0,0) along two perpendicular axes.
planar enforcement ...
Cartesian coordinate system A two-dimensional, planar coordinate system in which x measures horizontal distance and y measures vertical distance. Each point on the plane is defined by an x,y coordinate.
[coordinate systems] A group of planar coordinate systems based on the division of the United States into more than 130 zones to minimize distortion caused by map projections.
Once map data are projected onto a planar surface, features must be referenced by a planar coordinate system. The geographic system (latitude-longitude), which is based on angles measured on a sphere, is not valid for measurements on a plane.
The Cartesian system (x,y) is an example of a planar coordinate system. Latitude and longitude (expressed as angles) is an example of a nonplanar coordinate system.
Coordinate: A set of numbers that designate location in a given reference system, such as x,y in a planar coordinate system or an x,y,z in a three-dimensional coordinate system.
The corresponding datum is the basis for a planar coordinate system. For example the North American Datum, NAD83 is the horizontal datum and North American Datum NAVD88 is the vertical datum for coordinates used in Delaware County's GIS.
The datum is the basis for a planar coordinate system. For example, the North American Datum for 1983 (NAD83) is the datum for map projections and coordinates within the United States and throughout North America.
datum: A set of parameters and control points used to accurately define the three dimensional shape of the Earth. The corresponding datum is the basis for a planar coordinate system.
The corresponding datum is the basis for a planar coordinate system. Densify A process of adding vertices to arcs at a given distance without altering the arc's shape. See spline for a different method for adding vertices.
 See also: Coordinate, Coordinate system, Layer, Latitude, Image
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