Surface coordinates in USDFLD

"Omid G [email protected] [Abaqus]" <[email protected]> Fri, 21 Jun 2019 18:17:17 +0000 (UTC)
Newsgroups gmane.comp.mathematics.abaqus.user
Message-ID <[email protected]>
Dear Abaqus users,

I have defined a surface in my FE model, e.g., SURFACE_1, and I need to use the surface coordinates in my USDFLD subroutine. 
I am wondering if there is any way to do this. 
Thanks in advance.

Regards,