public PlottableHeatmap(double[,] intensities, Config.ColorMaps.Colormaps colorMap, string label, double[] axisOffsets, double[] axisMultipliers)
{
this.width = intensities.GetUpperBound(1) + 1;
this.height = intensities.GetUpperBound(0) + 1;
double[] intensitiesFlattened = Flatten(intensities);
this.min = intensitiesFlattened.Min();
this.max = intensitiesFlattened.Max();
this.brush = new SolidBrush(Color.Black);
this.pen = new Pen(brush);
this.axisOffsets = axisOffsets;
this.axisMultipliers = axisMultipliers;
this.colorMap = colorMap;
this.label = label;
this.intensitiesNormalized = Normalize(intensitiesFlattened);
int[] flatARGB = IntensityToColor(this.intensitiesNormalized, colorMap);
bmp = new Bitmap(width, height, PixelFormat.Format32bppArgb);
scale = new Bitmap(1, 256, PixelFormat.Format32bppArgb);
int[] scaleRGBA = IntensityToColor(Normalize(Enumerable.Range(0, scale.Height).Select(i => (double)i).Reverse().ToArray()), colorMap);
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
Rectangle rectScale = new Rectangle(0, 0, scale.Width, scale.Height);
BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
BitmapData scaleBmpData = scale.LockBits(rectScale, ImageLockMode.ReadWrite, scale.PixelFormat);
Marshal.Copy(flatARGB, 0, bmpData.Scan0, flatARGB.Length);
Marshal.Copy(scaleRGBA, 0, scaleBmpData.Scan0, scaleRGBA.Length);
bmp.UnlockBits(bmpData);
scale.UnlockBits(scaleBmpData);
}
private int[] IntensityToColor(double[] intensities, Config.ColorMaps.Colormaps colorMap)
{
switch (colorMap)
{
case Config.ColorMaps.Colormaps.grayscale:
return(new Config.ColorMaps.Grayscale().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.grayscaleInverted:
return(new Config.ColorMaps.GrayscaleInverted().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.viridis:
return(new Config.ColorMaps.Viridis().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.magma:
return(new Config.ColorMaps.Magma().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.inferno:
return(new Config.ColorMaps.Inferno().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.plasma:
return(new Config.ColorMaps.Plasma().IntensitiesToARGB(intensities));
case Config.ColorMaps.Colormaps.turbo:
return(new Config.ColorMaps.Turbo().IntensitiesToARGB(intensities));
default:
throw new ArgumentException("Colormap not supported");
}
}