On Thu, Jan 17, 2019 at 8:21 AM mgcyung <mgcyung@gmail.com> wrote:

>
> The function "org-export-get-ordinal" returns the ordinal of an element
> in the whole file. How to get ordinal of an element in the subtree when
> exporting?
>

Do you mean you want the ordinal counting to reset when the subtree begins?
In that case, export with the subtree scope: C-c C-e C-s ..