[Nek5000-users] rst to ix iy iz

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

Hi, I really think you want to distribute your force among a number of 
grid points, rather than concentrate everything on just the nearest point.

On 2018-09-19 12:57, nek5000-users at lists.mcs.anl.gov wrote:
> Dear Philipp and Paul,
> 
> Thanks for your replies. Yes, what I am trying to do is to change the 
> force on every grid point. Now I have all the things without finding the 
> closest grid point. So I am thinking to use rst and element numbers 
> obtained from findpts to locate the closest grid point. If I got which 
> grid point it is (specifically on having element number and ix iy iz in 
> that element), that would be sorted.
> 
> May I know further to the GLL points. As far as I can see, the 
> zgm1(ix,1) ranges from -1 (ix=1) to 1 (ix=nx1). Also zgm1(iy,2) and 
> zgm1(iz,3) are for y and z, respectively.
> (1). Are they corresponding to rst? If so, do you mean I can find the 
> closest zgm1 and determine the ix iy iz.
> (2). How can I know which element zgm1 refers to?
> 
> Kind regards,
> 
> Jian
> 
> 
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