/// <summary>
/// Expands a 1 dimensional index into a 3 dimensional index.
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public (int, int, int) IndicesAt(int index)
{
return(GridUtil.ExpandIndex(index, _nx, _nxy));
}
/// <summary>
/// Expands a 1 dimensional index into a 2 dimensional index.
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public (int i, int j) IndicesAt(int index)
{
return(GridUtil.ExpandIndex(index, _nx));
}
