/// <summary> /// HSLからRGBへ変換を行う。 /// </summary> /// <param name="hsl">HSL色</param> /// <param name="alpha">アルファ値(0≦alpha≦255)</param> /// <returns>RGB色</returns> public static Color ConvertHSLtoRGB(ColorHSL hsl, byte alpha) { float min = (hsl.Lightness < 0.5f) ? (hsl.Lightness - hsl.Lightness * (hsl.Saturation)) * 255.0f : (hsl.Lightness - (1.0f - hsl.Lightness) * hsl.Saturation) * 255.0f; float max = (hsl.Lightness < 0.5f) ? (hsl.Lightness + hsl.Lightness * (hsl.Saturation)) * 255.0f : (hsl.Lightness + (1.0f - hsl.Lightness) * hsl.Saturation) * 255.0f; int r, g, b; if ((hsl.Hue >= 0) && (hsl.Hue < 60)) { r = Convert.ToInt32(max); g = Convert.ToInt32((hsl.Hue / 60.0f) * (max - min) + min); b = Convert.ToInt32(min); } else if ((hsl.Hue >= 60) && (hsl.Hue < 120)) { r = Convert.ToInt32(((120.0f - hsl.Hue) / 60.0f) * (max - min) + min); g = Convert.ToInt32(max); b = Convert.ToInt32(min); } else if ((hsl.Hue >= 120) && (hsl.Hue < 180)) { r = Convert.ToInt32(min); g = Convert.ToInt32(max); b = Convert.ToInt32(((hsl.Hue - 120.0f) / 60.0f) * (max - min) + min); } else if ((hsl.Hue >= 180) && (hsl.Hue < 240)) { r = Convert.ToInt32(min); g = Convert.ToInt32(((240 - hsl.Hue) / 60.0f) * (max - min) + min); b = Convert.ToInt32(max); } else if ((hsl.Hue >= 240) && (hsl.Hue < 300)) { r = Convert.ToInt32(((hsl.Hue - 240) / 60.0f) * (max - min) + min); g = Convert.ToInt32(min); b = Convert.ToInt32(max); } else if ((hsl.Hue >= 300) && (hsl.Hue < 360)) { r = Convert.ToInt32(max); g = Convert.ToInt32(min); b = Convert.ToInt32(((360 - hsl.Hue) / 60.0f) * (max - min) + min); } else { r = 0; g = 0; b = 0; } return(ColorUtility.GetColor(alpha, r, g, b)); }
/// <summary> /// HSVからRGBへ変換を行う /// </summary> /// <param name="hsv">HSVカラー</param> /// <param name="alpha">アルファ値(0≦alpha≦255)</param> /// <returns>RGBカラーが返る</returns> public static Color ConvertHSVtoRGB(ColorHSV hsv, byte alpha) { int h = (Convert.ToInt32(hsv.Hue) / 60) % 6; int v = Convert.ToInt32(hsv.Value * 255.0f); int p = Convert.ToInt32((hsv.Value * (1.0f - hsv.Saturation)) * 255.0f); int q = Convert.ToInt32(hsv.Value * (1.0f - hsv.Saturation * (hsv.Hue - h * 60.0f) / 60.0f) * 255.0f); int t = Convert.ToInt32(hsv.Value * (1.0f - hsv.Saturation * ((h + 1.0f) * 60.0f - hsv.Hue) / 60.0f) * 255.0f); if ((hsv.Hue >= 0) && (hsv.Hue < 60)) { return(ColorUtility.GetColor(alpha, v, t, p)); } else if ((hsv.Hue >= 60) && (hsv.Hue < 120)) { return(ColorUtility.GetColor(alpha, q, v, p)); } else if ((hsv.Hue >= 120) && (hsv.Hue < 180)) { return(ColorUtility.GetColor(alpha, p, v, t)); } else if ((hsv.Hue >= 180) && (hsv.Hue < 240)) { return(ColorUtility.GetColor(alpha, p, q, v)); } else if ((hsv.Hue >= 240) && (hsv.Hue < 300)) { return(ColorUtility.GetColor(alpha, t, p, v)); } else if ((hsv.Hue >= 300) && (hsv.Hue < 360)) { return(ColorUtility.GetColor(alpha, v, p, q)); } else { return(ColorUtility.GetColor(alpha, 0, 0, 0)); } }