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Map Projections
A very good page with explanations of different map projections with a very good introduction on the subject. |
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Lambert conformal conic (LCC) projection - used in Pakistan
LCC is used in Survey of Pakistan (SOP) maps. This wikipedia article explains the LCC projection. |
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Global Positioning System (GPS) (Wikipedia)
A very good Wikipedia article about what GPS is and how it works. |
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GLONASS (Wikipedia) - The Russian version of GPS
The Russian satellites for positioning data. This is used nowadays in dual frequency GPS survey equipment. |
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Magellan Handheld GPS screenshots
Screenshots of the Magellan Sportrak. Gives you an idea of various data collected and displayed by most handheld GPS units. |
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Free GIS
The best resource for free GIS related software, geo-data and information. They also sell a CDROM containing most of the free GIS software for a very small amount of money. |
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Open Source GIS Software
A list of open source (free) GIS software including servers, utilities, converters, viewers etc. |
Links