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Geographic Information Systems or popularly known as GIS has been developing it's roots since the role of remote sensing has increased. It spreads it's branches to civil engineering, geosciences, forestry, disaster mitigation, ecology and environment and various other fields. The book explains the concepts of GIS in a simple language. Topics like development of GIS, data structures, database concepts, map projections, requirement of hardware and software for implementing GIS, errors and removing errors, advanced analysis are a few chapters to be named which find place in this book.AutoCAD and Microstation are the most widely used CAD softwares for digitization besides most of the GIS softwares posses their own ... But due to manual error or automatic digitisation in complex map draw the lines twice(called slivers).

Author: K. Elangovan
Publisher:New India Publishing - 2006-01-01

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