Jul 2, 2007

C-GIS Glossary,

This glossary is a sub-set of one developed by the Urban and Regional Information
Systems Association (URISA)


Cartesian Coordinate
Point whose location is expressed in terms of its distance above or below an X, a Y and a Z coordinate plane. Location of a point on a plane is expressed by two coordinate values, one representing the distance from the Y-axis and the other representing the distance from the X-axis.


Cartography
Cartography is the science and art of making maps and charts. More broadly, the term includes all the steps necessary to produce a map: planning, aerial photography, drafting, editing, color separation, and multicolored printing. With regard to computerized spatial databases, a spatial feature is a point, line, arcs, string, chain, polygons, symbol, text or other form of spatial entity.


Centerline
A centerline is a linear feature representing the midpoint along a linear element like a road or stream.


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