public Color GetColor(double t)
{
Verify.AssertIsFinite(t);
Verify.IsTrue(0 <= t && t <= 1);
if (t <= 0)
{
return(colors[0]);
}
else if (t >= 1)
{
return(colors[colors.Count - 1]);
}
else
{
int i = 0;
while (points[i] < t)
{
i++;
}
double ratio = (points[i] - t) / (points[i] - points[i - 1]);
Verify.IsTrue(0 <= ratio && ratio <= 1);
Color c0 = colors[i - 1];
Color c1 = colors[i];
Color res = Color.FromRgb(
(byte)(c0.R * ratio + c1.R * (1 - ratio)),
(byte)(c0.G * ratio + c1.G * (1 - ratio)),
(byte)(c0.B * ratio + c1.B * (1 - ratio)));
// Increasing saturation and brightness
if (increaseBrightness)
{
HsbColor hsb = res.ToHsbColor();
//hsb.Saturation = 0.5 * (1 + hsb.Saturation);
hsb.Brightness = 0.5 * (1 + hsb.Brightness);
return(hsb.ToArgbColor());
}
else
{
return(res);
}
}
}
