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NEED TO KNOW NOW!!!

 
 
Reply Wed 2 Sep, 2009 05:35 pm
Identify and describe each of the four major flat-map projections???
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Type: Question • Score: 3 • Views: 750 • Replies: 6
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NickFun
 
  1  
Reply Wed 2 Sep, 2009 06:01 pm
@Sabrinaa456,
Truly a difficult homework assignment Sabrina. I didn't know there were four major flat-map projections.
roger
 
  1  
Reply Wed 2 Sep, 2009 06:20 pm
@NickFun,
Three of them look down right strange.
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Ceili
 
  2  
Reply Wed 2 Sep, 2009 07:19 pm
There are general or thematic,
Planimetric, topographical or charts.
Examples of maps - world, political, physical, vegetation, religious, economic, road, weather, relief, star, orthophoto, aeronautical, nautical and satellite maps and atlases and/or GPS cooridinates.
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Setanta
 
  1  
Reply Wed 2 Sep, 2009 07:45 pm
You left out Mercator . . .
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georgeob1
 
  1  
Reply Wed 2 Sep, 2009 07:59 pm
I believe the only geometric possibilities are projections (1) on a plane or (2) on a cylinder.

Projection on a tangent plane is called a gnomic projections. The most common are tangent at a pole.

Projection on a cylinder tangent at the equator is caled a Mercator projection - the one Setanta noted.

One occasionally encounters projections on the equatorial plane, but I don't know what they are called.
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talk72000
 
  1  
Reply Wed 2 Sep, 2009 09:58 pm
@Sabrinaa456,
wikipedia:

http://en.wikipedia.org/wiki/Map_projection

National Geographic:

http://www.nationalgeographic.com/features/2000/projections/ax/content_frame.html

Others:

http://www.progonos.com/furuti/MapProj/Dither/TOC/cartTOC.html

http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html

http://www.members.shaw.ca/quadibloc/maps/mapint.htm

Microsoft:
http://msdn.microsoft.com/en-us/library/cc749633.aspx
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