/// 根据温度获取颜色 /// 算法如下： /// 1.定义色阶变化范围fromColor toColor /// 2.获取因子：factor = T / (MaxT - MinT); /// 3.计算新的RGB /// R = fromColor.R * (1 - factor) + toColor.R * factor /// G = fromColor.G * (1 - factor) + toColor.G * factor /// B = fromColor.B * (1 - factor) * toColor.B * factor /// 4.如果多个色阶，重复上面的运算 /// </summary> public static class TemperatuerColor { private static Color Red = Color.FromRgb(255 0 0); private static Color Yellow = Color.FromRgb(255 0 0); private static Color Blue = Color.FromRgb(255 0 0);
public static SolidColorBrush GetColor(double temperature double maxtemperature double mintemperature) { double ratio = temperature / (maxtemperature - mintemperature); Color result1 = Compute(Blue Yellow ratio); Color result2 = Compute(Yellow Red ratio); Color result = Compute(result1 result2 ratio);
return new SolidColorBrush(result); }
private static Color Compute(Color fromColor Color toColor double ratio) { byte r = (byte)(fromColor.R * (1.0f - ratio) + toColor.R * ratio); byte g = (byte)(fromColor.G * (1.0f - ratio) + toColor.G * ratio); byte b = (byte)(fromColor.B * (1.0f - ratio) + toColor.B * ratio); return Color.FromRgb(r g b); }
