[OSM-newbies] Squashed Display (Not JOSM)

[Matthew Aidekman User]

Hi all,

	So, I'm getting some distorted displays and I'm hoping for some help.  As an example, this is how Times Square displays. (http://imgur.com/CQlIocE)   For those who haven't been to my amazing city, these blocks are all rectangles in reality.  A casual search has yielded some stuff about projections but it's all been in regard to JOSM.  I'm just downloading a JSON file and processing it in Javascript with the JSON parser.  

All I'm doing so far is scaling the lon/lat coordinates to the size of the display.   I did a test and added the following code and as I expected it does indeed display a right triangle on top of the distorted map.
 
	showLine(-73.790962, 42.252865,-73.791962, 42.253865);
	showLine(-73.790962, 42.252865,-73.790962, 42.253865);
	showLine(-73.790962, 42.253865,-73.791962, 42.253865);	


Is there some extra math I'm supposed to employ to display lon/lat coordinates beyond just scaling them to the dimensions of the display?

Thanks in advance,
-Matt
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