Re: [ff3d-users] Do you have a function that can return cell data with coordinate?

[Stephane Del Pino]

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On Tuesday 17 February 2004 20:20, Robert Li wrote:
> Dear Stephane Del Pino,
>   I want to extract Tetrahedron cell data information
> according to coordinate(x,y,z).
It is not possible to manipulate a given tetrahedron in the language!
And this will not be possible before a complete rewriting of the language,
which will not happen very soon :-p

> For example,
> 1. First, read a Tetrahedron mesh to ff3d.
> 2. Then, according to the reference value of cell to
> set boundary condition or PDE coefficient.
> 3. Finally, get a dynamic PDE and boundary condition
> according to different soil layer and position.
>
>  Do you have a function that can return cell data with
> coordinate? or any advice?
Yes, I think I have the solution.

You can define functions according to the reference of tetrahedra:
=====
function f = reference (T, 1:g, 2:h, 3:k);
=====

where g, h, and k are functions or doubles. And 1,2,3 are tetrahedra
references of the mesh T.

Regards,
Stephane.
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