// Converts an RGB color to an HSV color.
public static HsvColor ConvertRgbToHsv(int r, int b, int g)
{
double delta, min;
double h = 0, s, v;
min = Math.Min(Math.Min(r, g), b);
v = Math.Max(Math.Max(r, g), b);
delta = v - min;
if (v == 0.0)
{
s = 0;
}
else
s = delta/v;
if (s == 0)
h = 0.0;
else
{
if (r == v)
h = (g - b)/delta;
else if (g == v)
h = 2 + (b - r)/delta;
else if (b == v)
h = 4 + (r - g)/delta;
h *= 60;
if (h < 0.0)
h = h + 360;
}
var hsvColor = new HsvColor();
hsvColor.H = h;
hsvColor.S = s;
hsvColor.V = v/255;
return hsvColor;
}
private void determineColor(Point p)
{
var hsv = new HsvColor(360 - m_ColorSlider.Value, 1, 1);
hsv.S = p.X;
hsv.V = 1 - p.Y;
m_color = ColorUtilities.ConvertHsvToRgb(hsv.H, hsv.S, hsv.V);
shouldFindPoint = false;
m_color.ScA = (float) GetValue(ScAProperty);
SetValue(HexadecimalStringProperty, m_color.ToString());
shouldFindPoint = true;
}