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ofkHelper.h
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ofkHelper.h
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/*
* KsHelper.h
* iPhoneEmptyExample
*
* Created by Shunichi Kasahara on 10/08/26.
* Copyright 2010 __MyCompanyName__. All rights reserved.
*
*/
#pragma once
#include "ofMain.h"
class ofkHelper{
public:
//TODO
static void matrixTween(){;}
/**
* convert BGR tp RGB
*/
static ofColor HSL2RGB(double h, double sl, double l){
double v;
double r,g,b;
r = l; // default to gray
g = l;
b = l;
v = (l <= 0.5) ? (l * (1.0 + sl)) : (l + sl - l * sl);
if (v > 0)
{
double m;
double sv;
int sextant;
double fract, vsf, mid1, mid2;
m = l + l - v;
sv = (v - m ) / v;
h *= 6.0;
sextant = (int)h;
fract = h - sextant;
vsf = v * sv * fract;
mid1 = m + vsf;
mid2 = v - vsf;
switch (sextant)
{
case 0:
r = v;
g = mid1;
b = m;
break;
case 1:
r = mid2;
g = v;
b = m;
break;
case 2:
r = m;
g = v;
b = mid1;
break;
case 3:
r = m;
g = mid2;
b = v;
break;
case 4:
r = mid1;
g = m;
b = v;
break;
case 5:
r = v;
g = m;
b = mid2;
break;
}
}
ofColor rgb;
rgb.r = (int)(r * 255.0f);
rgb.g= (int)(g * 255.0f);
rgb.b = (int)(b * 255.0f);
return rgb;
};
private:
};