//public static R[,] Select<T, R>(this T[,] source, Expression<Func<T, R>> kernel)
// where T : unmanaged
// where R : unmanaged
// => Select(source.Wrap(Bounds.Skip), (cell) => kernel(cell[0, 0]));
public static R[,] Select <T, R>(this IRelQueryableArray2d <T> source, Expression <Kernel <T, R> > kernel)
where T : unmanaged
where R : unmanaged
{
if (source is ArrayWrapper <T> wrapper)
{
return(FilterParallel(kernel, wrapper._array));
}
else
{
throw new ArgumentOutOfRangeException(nameof(source), $"Sources of type {source.GetType()} aren't yet supported");
}
}
public static R[,] Select <T, R>(this IRelQueryableArray2d <T> source, Kernel <T, R> kernel)
{
var h = source.GetLength(0);
var w = source.GetLength(1);
var result = new R[h, w];
var km = KernelMeasure.Measure(kernel);
var cell = new Cell <T>(source);
for (cell._x = -km.xmin; cell._x < h - km.xmax; cell._x++)
{
for (cell._y = -km.ymin; cell._y < w - km.ymax; cell._y++)
{
result[cell._x, cell._y] = kernel(cell);
}
}
return(result);
}
public static IQueryableArray2d <R> Select <T, R>(this IRelQueryableArray2d <T> source, Kernel <T, R> kernel) => new SingleSelectWrapper <T, R>(source, kernel);
public static IArray2d <R> Select <T, R>(this IRelQueryableArray2d <T> source, Kernel <T, R> kernel) => GenerateFilter(kernel)(source);
