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Index › Programming Questions & Help › Syntax Questions › Anyone seen an example of this before
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Anyone seen an example of this before? (Read 633 times)
somethingorother
Anyone seen an example of this before?
Feb 14th, 2008, 6:07am  
Looking to see if i can find a starting point for a project of mine.

What i need to be able to do is map locations or points on a flat globe (meaning its flat, and not a globe Wink ).  

So has anyone seen something like this done in processing before?
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modjibee
Re: Anyone seen an example of this before?
Reply #1 - Feb 14th, 2008, 9:13am  
You should give us more details... What is the scale ?
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JohnG
Re: Anyone seen an example of this before?
Reply #2 - Feb 14th, 2008, 10:17am  
AS long as you're using a mercator projection, then latitude and longitude just become x and y coords on screen.
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davbol
Re: Anyone seen an example of this before?
Reply #3 - Feb 14th, 2008, 6:05pm  
Miller might be better, best is just a plain cylindrical equidistant projection (aka "equirectangular", aka "geographic projection") with image aspect 2:1, then you can just linearly scale lat/lon to height/width.  (Mercator is conformal, but not equidistant - lines of latitude are not equally spaced)  Tradeoff is the projection math is easy Smiley but the map itself looks sorta goofy Sad   (very distorted, south pole is huuuuuge, for example)
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somethingorother
Re: Anyone seen an example of this before?
Reply #4 - Feb 20th, 2008, 5:30pm  
Yeah i had thought about all that but was hoping that someone had some code samples i could review.

I am also a bit keen on presentation of the data (i will be plotting locations on the map).   As such i would rather prefer not to deal with a warped and mutilated antartica Wink
(but will do it if need be)

So no one has seen such a project in processing yet?
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somethingorother
Re: Anyone seen an example of this before?
Reply #5 - Feb 20th, 2008, 5:32pm  
Sorry missed a question..

Scale would be a simple desktop application or applet, so there is no need to be super accurate, the dataset im dealing with is geoip anyways so it wouldnt be super accurate to begin with.   Main goal is to visually plot distribution of IP's on a globe over time (think web logs).  

More of a pet project of mine as im trying to learn processing and figured if i could do this properly i should be in good shape.  (hence the desire to see some form of code samples)
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