首先,感谢@Juho Vepsäläinen
我将其应用在我的项目中,如下所示
function lerp(a, b, fac) {
var ret = [];
for(var i = 0; i < Math.min(a.length, b.length); i++) {
ret[i] = a[i] * (1 - fac) + b[i] * fac;
}
return new Color().setRGB(ret[0], ret[1], ret[2]).toString();
}
function lerpColors(begin, end, n) {
var ret = [];
for(var i = 0; i < n; i++) {
var fac = i / (n - 1);
ret.push(lerp(begin.toRGBArray(), end.toRGBArray(), fac));
}
return ret;
}
var paletteSize = 300;
var palette = lerpColors(
new Color('#C6DBEF'),
new Color('#3182BD'),
paletteSize
);
console.log(palette) 会显示如下内容(示例):
['002b36', '073642', '586e75', '657b83', '839496', '93a1a1', 'eee8d5', 'fdf6e3']
function lerp(a, b, fac) {
var ret = [];
for(var i = 0; i < Math.min(a.length, b.length); i++) {
ret[i] = a[i] * (1 - fac) + b[i] * fac;
}
return ret;
}
// this func returns n colors (begin, <interpolated colors>, end)
function lerpColors(begin, end, n) {
var ret = [];
for(var i = 0; i < n; i++) {
var fac = i / (n - 1);
ret.push(lerp(a.toRGBArray(), b.toRGBArray(), fac));
}
return ret;
}
var col1 = new Color('#ff0011'); // some red
var col2 = new Color('#00ff11'); // some green
var colors = lerpColors(col1, col2, 7);