Wrong calculation of a Threshold distance

[MetLob]

public static int FindNextColor(Color c, Color[] palette, decimal threshold = 0)
in Ekona.Images.Actions.cs

If a color represented as vector with coordinates R G B
Distance between two vector equals to |x - y|
Then the threshold value is a radius of a toleranced sphere.

But in the FindNextColor method distance calculated as | |x| - |y| |...

Error or I'm not understanding of a color spectre stucture...

[MetLob]

I think, next changes fix this:

Old code:

            double modulec = Math.Sqrt(palette[i].R * palette[i].R + palette[i].G * palette[i].G + palette[i].B * palette[i].B);
            decimal distance = (decimal)Math.Abs(module - modulec);

New code:

            double x = palette[i].R - c.R;
            double y = palette[i].G - c.G;
            double z = palette[i].B - c.B;
            decimal distance = (decimal)Math.Sqrt(x * x + y * y + z * z);

[pleonex]

You are absolutely right! I will fix it.