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Re: Image Overlays on Google Earth with KML Files [message #81857 is a reply to message #81856]

Thu, 01 November 2012 10:48

natha
Messages: 482
Registered: October 2007

Senior Member

Hi David,

I am glad that my question has inspired you...
I found a very good library to create KML files in IDL. I didn't start using it but it seems very complete to me. Take a look :

http://code.google.com/p/kdm-idl/

One question I have is about the projection... In your code your are projecting everything to an Equirectangular projection. Is this the Google Earth exact "projection"?
I am asking this because I have found some differences between the IDL Mercator projection and the projection used by Google Maps (that is also Mercator). I don't exactly know the reason but if I want precision of meters I have to use my own code to project things.

Thank you,
nata

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		Re: Image Overlays on Google Earth with KML Files By: DavidF[1] on Thu, 01 November 2012 11:19
		Re: Image Overlays on Google Earth with KML Files By: natha on Thu, 01 November 2012 10:48

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