public static BitmapSource ILArrayToBitmapSource(ILArray <double> surface)
{
// Define parameters used to create the BitmapSource.
PixelFormat pf = PixelFormats.Bgr32;
int width = surface.Dimensions[0];
int height = surface.Dimensions[1];
int bytes = (pf.BitsPerPixel + 7) / 8;
int rawStride = (width * bytes);
byte[] rawImage = new byte[rawStride * height];
int index = 0;
ColourMap ColourMap = new ColourMap(ColourMapType.Jet, 256);
byte[,] cmap = ColourMap.ToByteArray();
double range = surface.MaxValue - surface.MinValue;
double min = surface.MinValue;
int magnitude = 0;
ILArray <int> scaled = (ILArray <int>)ILMath.convert(NumericType.Int32, ILMath.floor((surface - min) * 256.0 / range));
ILIterator <int> iterator = scaled.CreateIterator();
Stopwatch sw = Stopwatch.StartNew();
sw.Reset();
sw.Start();
magnitude = iterator.Value;
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
if (magnitude == 256)
{
magnitude = 255;
}
rawImage[index] = cmap[magnitude, 3];
rawImage[index + 1] = cmap[magnitude, 2];
rawImage[index + 2] = cmap[magnitude, 1];
rawImage[index + 3] = cmap[magnitude, 0];
index += bytes;
magnitude = iterator.Increment();
}
}
sw.Stop();
string result;
result = "Elapsed time: " + sw.ElapsedMilliseconds.ToString() + " ms";
// Create a BitmapSource.
BitmapSource bitmap = BitmapSource.Create(width, height,
96, 96, pf, null,
rawImage, rawStride);
return(bitmap);
}
public static BitmapSource ILArrayToBitmapSourceReversed(ILArray <double> surface, ColourMap colourMap)
{
// Define parameters used to create the BitmapSource.
PixelFormat pf = PixelFormats.Bgr32;
int width = surface.Dimensions[0];
int height = surface.Dimensions[1];
int bytes = (pf.BitsPerPixel + 7) / 8;
int rawStride = (width * bytes);
byte[] rawImage = new byte[rawStride * height];
int index = 0;
byte[,] cmap = colourMap.ToByteArray();
int colourMapLength = colourMap.Length;
double range = surface.MaxValue - surface.MinValue;
double min = surface.MinValue;
int magnitude = 0;
ILArray <int> scaled = (ILArray <int>)ILMath.convert(NumericType.Int32, ILMath.floor((surface - min) * (double)(colourMapLength - 1) / range));
ILIterator <int> iterator = scaled.CreateIterator();
magnitude = iterator.Value;
for (int y = height - 1; y >= 0; --y)
{
index = y * rawStride;
for (int x = 0; x < width; ++x)
{
rawImage[index] = cmap[magnitude, 3];
rawImage[index + 1] = cmap[magnitude, 2];
rawImage[index + 2] = cmap[magnitude, 1];
rawImage[index + 3] = cmap[magnitude, 0];
index += bytes;
magnitude = iterator.Increment();
}
}
// Create a BitmapSource.
BitmapSource bitmap = BitmapSource.Create(width, height,
96, 96, pf, null,
rawImage, rawStride);
return(bitmap);
}
