public static string getMixedColor(string color, double mix = .2, double bright = .3)
{
var c = (!string.IsNullOrEmpty(color) && color[0] == '#') ? color : getRandomColor();
var d = getRandomColor();
return(D3.interpolate(c, d)(mix).brighter((float)bright).hex());
}
public static string[] getColors(int number)
{
// const c12 = d3.scaleOrdinal(d3.schemeSet3);
string[] c12 = { "#dababf", "#fb8072", "#80b1d3", "#fdb462", "#b3de69", "#fccde5", "#c6b9c1", "#bc80bd", "#ccebc5", "#ffed6f", "#8dd3c7", "#eb8de7" };
var cRB = D3.Rainbow;
var colors = D3.range(number)
.Select(i =>
{
if (i < 12)
{
return(c12[i]);
}
var f = (double)(i - 12) / (number - 12);
var c = cRB(f).hex();
//Debug.Log($"getColors { i} { f} { c}");
return(c);
})
.ToArray();
D3.shuffle(colors);
//debug.selectAll("circle").data(colors).enter().append("circle").attr("r", 15).attr("cx", (d,i) => 60 + i * 40).attr("cy", 20).attr("fill", d => d);
return(colors);
}
// random number (normal or gaussian distribution)
public static double gauss(double expected = 100, double deviation = 30, double min = 0, double max = 300, int round = 0)
{
return(rn(Math.Max(Math.Min(D3.randomNormal(expected, deviation)(), max), min), round));
}
public static string getRandomColor()
{
return(D3.Rainbow(Random.NextDouble()).hex());
}