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springmeyer/gist:1168887

Created August 24, 2011 19:03
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gistfile1.txt
var wgs2merc = function(lon,lat) {
lon = parseFloat(lon);
lat = parseFloat(lat);
var x = lon * 20037508.34 / 180;
var y = Math.log(Math.tan((90 + lat) * Math.PI / 360)) / (Math.PI / 180);
y = y * 20037508.34 / 180;
return [x,y];
}
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springmeyer commented Apr 17, 2012

I'll knock out getting this exposed now: mapnik/node-mapnik#57

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