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我想用Javascript將HSV轉換爲RGB。將HSV轉換爲RGB無法正常工作Javascript
由於某種原因,輸出不正確。返回的數字是瘋狂的。例如,當傳遞hsv(0, 100, 100)
到函數,它返回rgb(25500, -2524500, -2524500);
這顯然不是一個有效的RGB值。
這裏是HSV轉換爲RGB功能:
function HSVtoRGB(h, s, v) {
var r, g, b, i, f, p, q, t;
if (arguments.length === 1) {
s = h.s, v = h.v, h = h.h;
}
i = Math.floor(h * 6);
f = h * 6 - i;
p = v * (1 - s);
q = v * (1 - f * s);
t = v * (1 - (1 - f) * s);
switch (i % 6) {
case 0: r = v, g = t, b = p; break;
case 1: r = q, g = v, b = p; break;
case 2: r = p, g = v, b = t; break;
case 3: r = p, g = q, b = v; break;
case 4: r = t, g = p, b = v; break;
case 5: r = v, g = p, b = q; break;
}
return {
r: Math.round(r * 255),
g: Math.round(g * 255),
b: Math.round(b * 255)
};
}