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Convert HSV color tu RBG - Printable Version

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+--- Thread: Convert HSV color tu RBG (/showthread.php?tid=360779)


Convert HSV color tu RBG - xX_Simon_Xx - 18.07.2012

i try to do this by follow this http://en.wikipedia.org/wiki/HSL_color_space#From_HSV
but for exemple if i insert H = 100, S 0.9, V = 0.5;
it's return 0.500000,0.500000,0.050000
or if I insert H = 10, S 0.4, V = 0.1;
it's return 0.100000,0.059999,0.059999

PHP код:
stock Float:flomod(Float:a, Float:b)
{
    while(a > b)
        a -= b;
    return a;
}
stock HSBtoRBG(H,Float:S,Float:V)
{
    new R,G,B;
    new Float:r,Float:g,Float:b;
    new Float:C = floatmul(V,S);
    new Float:fH = H / 60;
    new Float:X = floatmul(C,(1 - floatabs(flomod(fH,2.0) - 1)));
    
    if(fH < 1) r = C,g = X,b = 0.0;
    else if(fH < 2) r = X,g = C,b = 0.0;
    else if(fH < 3) r = 0,g = C,b = X;
    else if(fH < 4) r = 0,g = X,b = C;
    else if(fH < 5) r = X,g = 0.0,b = C;
    else if(fH < 6) r = X,g = 0.0,b = C;
    else r = 0.0,g = 0.0,b = 0.0;
    new Float:m = V - C ;
    r = r+m;
    g = g+m;
    b = b+m;
    printf("%f,%f,%f",r,g,b);
} 
why dont' return RBG values

Re: Convert HSV color tu RBG - MP2 - 18.07.2012

Not sure if relevant: http://www.cs.rit.edu/~ncs/color/t_convert.html