private Slicing(Tensor <Type> x, XList <XSlice, Slice> slices)
: base("[]", x, slices)
{
// count the number of dropped dimensions
Shape = new Dim[x.NDim - slices.Count(s => s.IsSingleton)];
// align new axis with old ones
int i = 0, j = 0;
foreach (var slice in slices)
{
if (!slice.IsSingleton)
{
Shape[i++] = slice.ExtractAxis(x, j);
}
++j;
}
// axis not appearing in slices are not modified
for (; i < Shape.Length; ++i)
{
Shape[i] = x.Shape[j++];
}
}