Exemplo n.º 1
0
        void colorChanged()
        {
            var hsv = new ColorHSV((int)nudH.Value, (int)nudS.Value, (int)nudV.Value);

            refreshColorPanel(hsv);
        }
Exemplo n.º 2
0
        public static ColorRGB HsvToRgb(ColorHSV hsv)
        {
            if (hsv.H == 360)
            {
                hsv.H = 359;               // 360为全黑,原因不明
            }
            float R = 0f, G = 0f, B = 0f;

            if (hsv.S == 0)
            {
                return(new ColorRGB(hsv.V, hsv.V, hsv.V));
            }
            float S = hsv.S * 1.0f / 255, V = hsv.V * 1.0f / 255;
            int   H1 = (int)(hsv.H * 1.0f / 60), H = hsv.H;
            float F = H * 1.0f / 60 - H1;
            float P = V * (1.0f - S);
            float Q = V * (1.0f - F * S);
            float T = V * (1.0f - (1.0f - F) * S);

            switch (H1)
            {
            case 0: R = V; G = T; B = P; break;

            case 1: R = Q; G = V; B = P; break;

            case 2: R = P; G = V; B = T; break;

            case 3: R = P; G = Q; B = V; break;

            case 4: R = T; G = P; B = V; break;

            case 5: R = V; G = P; B = Q; break;
            }
            R = R * 255;
            G = G * 255;
            B = B * 255;
            while (R > 255)
            {
                R -= 255;
            }
            while (R < 0)
            {
                R += 255;
            }
            while (G > 255)
            {
                G -= 255;
            }
            while (G < 0)
            {
                G += 255;
            }
            while (B > 255)
            {
                B -= 255;
            }
            while (B < 0)
            {
                B += 255;
            }
            return(new ColorRGB((int)R, (int)G, (int)B));
        }