public static void Plot <T>(string filename, NumCIL.Generic.NdArray <T> array, Func <int, int, T, Color> encode, Color backgroundColor)
{
var shape = array.Shape;
if (shape.Dimensions.Length != 2)
{
throw new Exception("Must be 2D array");
}
var w = (int)shape.Dimensions[0].Length;
var h = (int)shape.Dimensions[1].Length;
using (var bmp = new Bitmap(w, h))
{
using (var gc = System.Drawing.Graphics.FromImage(bmp))
gc.Clear(backgroundColor);
using (var lb = new LockBitmap(bmp))
for (var y = 0; y < h; y++)
{
for (var x = 0; x < w; x++)
{
lb.SetPixel(x, y, encode(x, y, array.Value[y, x]));
}
}
bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
}
}
/// <summary>
/// Creates a new view
/// </summary>
public static TPointer CreateNewView(NumCIL.Generic.NdArray <TData> a)
{
var ac = a.DataAccessor;
lock (PinnedArrayTracker.ExecuteLock)
{
if (ac is BohriumDataAccessorBase <TData, TPointer, TAccess> )
{
var acp = ((BohriumDataAccessorBase <TData, TPointer, TAccess>)a.DataAccessor).GetArrayPointer();
return(Mapper.NewView(
acp,
(ulong)a.Shape.Dimensions.Length,
a.Shape.Offset,
a.Shape.Dimensions.Select(x => x.Length).ToArray(),
a.Shape.Dimensions.Select(x => x.Stride).ToArray()
));
}
else
{
TPointer res;
using (var acp = Mapper.NewEmpty((ulong)a.DataAccessor.Length))
{
res = Mapper.NewView(
acp,
(ulong)a.Shape.Dimensions.Length,
a.Shape.Offset,
a.Shape.Dimensions.Select(x => x.Length).ToArray(),
a.Shape.Dimensions.Select(x => x.Stride).ToArray()
);
}
Mapper.SetData(res, PinnedArrayTracker.CreatePinnedArray(a.DataAccessor.AsArray()));
return(res);
}
//Console.WriteLine("Created multi_array from NdArray: {0}", this.pointer.ToInt64());
}
}
public static void Plot <T>(string filename, NumCIL.Generic.NdArray <T> array, Func <int, int, T, Color> encode)
{
Plot(filename, array, encode, Color.White);
}
