[Nek5000-users] rst to ix iy iz

[nek5000-users at lists.mcs.anl.gov]

Dear Jian,


There are an infinite number of r values but only a finite number

of ix values, so there is no one-to-one mapping of r to ix.


If you want the closest one, you could check against the positions of

the Gauss-Lobatto-Legendre points, zgm1(ix,1), for ix=1,...,lx1.


Paul


________________________________
From: Nek5000-users <nek5000-users-bounces at lists.mcs.anl.gov> on behalf of nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
Sent: Tuesday, September 18, 2018 6:09 AM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] rst to ix iy iz

Dear nek,

Do you know how to convert r, s, t in [-1,1] to ix, iy, iz in an element?

Actually I didn't see too many documents about reference space coordinates. Can you please provide some links for that? Thanks

Kind regards,

Jian
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