Category Archives: GIS

GIS:Spatial Data

Posted on June 19, 2008 by Rashid Faridi

SPATIAL DATA TYPES In a GIS, the Locational information is provided in maps by using Points, Lines and Polygons. These geometric descriptions are the basic data elements of a map. 1. Points: They are represented as a single ‘Dot ‘on … Continue reading →

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PROJECTIONS

Posted on June 18, 2008 by Rashid Faridi

A spherical co-ordinate system (like latitude and longitude) works well only if one is using a globe but not if one has to display the data on a flat surface like a map. Thus arises the need for projections. Projection is … Continue reading →

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THE NEED FOR GIS

Posted on June 18, 2008 by Rashid Faridi

Any organization, government private is in some way or another strongly linked to the geography in which it operates. A GIS that has been designed in a proper manner has the capability of providing quick and easy access to large … Continue reading →

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GIS and Cartography

Posted on June 18, 2008 by Rashid Faridi

Maps have been an integral part of the human story for a long time. From cave/wall paintings, ancient maps of Babylon and Greek philosophers, through the Age of Exploration, and on into the 21st century, people have created and used … Continue reading →

Posted in GIS, Remote Sensing 101 | 1 Comment