Created
August 6, 2013 09:33
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| function rainbow(numOfSteps, step) { | |
| // based on http://stackoverflow.com/a/7419630 | |
| // This function generates vibrant, "evenly spaced" colours (i.e. no clustering). This is ideal for creating easily distiguishable vibrant markers in Google Maps and other apps. | |
| // Adam Cole, 2011-Sept-14 | |
| // HSV to RBG adapted from: http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript | |
| var r, g, b; | |
| var h = step / numOfSteps; | |
| var i = ~~(h * 6); | |
| var f = h * 6 - i; | |
| var q = 1 - f; | |
| switch(i % 6){ | |
| case 0: r = 1, g = f, b = 0; break; | |
| case 1: r = q, g = 1, b = 0; break; | |
| case 2: r = 0, g = 1, b = f; break; | |
| case 3: r = 0, g = q, b = 1; break; | |
| case 4: r = f, g = 0, b = 1; break; | |
| case 5: r = 1, g = 0, b = q; break; | |
| } | |
| var c = "#" + ("00" + (~ ~(r * 235)).toString(16)).slice(-2) + ("00" + (~ ~(g * 235)).toString(16)).slice(-2) + ("00" + (~ ~(b * 235)).toString(16)).slice(-2); | |
| return (c); | |
| } |
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awesome!