GIS

GIS Graphic

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Modern GIS technologies use digital information to create a hard copy map or survey plan. The information is transferred into a digital form through the use of a CAD program and geo-referencing (defining a thing’s existence in physical space). With the wide availability of information from satellite and aerial sources, geographic data is extracted and involves the tracing of geographic data directly on top of the aerial image. The GIS data represents real objects such as roads, land use, elevations, trees and waterways.