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jkosoy/gist:2776908

Created May 23, 2012 18:34
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Port of Processing's map() function to JS. See: http://processing.org/reference/map_.html
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gistfile1.js
function map(val, a1, a2, b1, b2) { return ((val - a1) * (b2 -b1)/(a2 - a1)) + b1; }
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