82 lines
2.4 KiB
C#
82 lines
2.4 KiB
C#
using SkiaSharp;
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namespace omp
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{
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using CalculationResults = Dictionary<string, double[,]>;
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public class Drawer
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{
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public static void DrawAll(Configurator conf, CalculationResults results)
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{
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Directory.CreateDirectory("output");
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foreach ((string name, double[,] matrix) in results)
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{
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Draw(conf, matrix, Path.Join("output", name + ".png"));
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}
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}
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public static void Draw(Configurator conf, double[,] matrix, string fileName)
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{
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(double min, double max) = matrix.MinMax();
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Console.WriteLine("{0}: {1}...{2}", fileName, min, max);
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var bitmap = new SKBitmap(conf.XSize, conf.YSize);
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for (int i = 0; i < conf.XSize; ++i)
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{
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for (int j = 0; j < conf.YSize; ++j)
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{
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SKColor color;
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if (double.IsNaN(matrix[i, j]))
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{
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color = SKColors.White;
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}
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else
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{
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double t = (matrix[i, j] - min) / (max - min);
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color = Map2Color(t);
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}
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bitmap.SetPixel(i, j, color);
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}
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}
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using (var image = SKImage.FromBitmap(bitmap))
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using (var data = image.Encode(SKEncodedImageFormat.Png, 100))
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using (var stream = File.OpenWrite(fileName))
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{
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data.SaveTo(stream);
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}
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}
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public static SKColor Map2Color(double t)
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{
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if (t < 0.25)
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{
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// Blue to cyan
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double localT = t / 0.25;
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return new SKColor(0, (byte)(255 * localT), 255);
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}
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else if (t < 0.5)
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{
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// Cyan to green
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double localT = (t - 0.25) / 0.25;
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return new SKColor(0, 255, (byte)(255 * (1 - localT)));
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}
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else if (t < 0.75)
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{
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// Green to yellow
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double localT = (t - 0.5) / 0.25;
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return new SKColor((byte)(255 * localT), 255, 0);
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}
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else
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{
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// Yellow to red
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double localT = (t - 0.75) / 0.25;
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return new SKColor(255, (byte)(255 * (1 - localT)), 0);
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}
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}
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}
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}
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