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COGO
Acronym for Coordinate Geometry, COGO is a subsystem of CAD or GIS made up of a set of standard procedures for processing survey data such as bearings, distances and angles to generate precise spatial representation of land features and survey control networks.

Conformal Projection
A projection wherein the scale is the same in every direction at any point. Meridians and parallels intersect at right angles; the shape of small areas and angles with very short sides are preserved. Most area values are distorted.

Conic Projection
A projection in which the surface is drawn, as it would appear if projected on a cone wrapped around the Earth. A Lambert projection is a form of Conic projection often used for maps of the continental United States, France, and other countries.

Cylindrical Projection
Projection in which a surface is drawn, as it would appear if projected on a cylinder wrapped around the earth. "Mercador Projection" is a form of cylindrical projection in which the surface is drawn, as it would appear if projected on a cylinder wrapped around the earth in a north south direction.


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