[Getdp] [GetDP] Calculation of an Integral quantity
Christophe Geuzaine
cgeuzaine at ulg.ac.be
Tue Apr 24 23:18:38 CEST 2007
Olivier Castany wrote:
> Hello,
>
>> Yes. Both XS[] and $XS can normally be used, but I recommend using XS[],
>> as $XS has not been tested and is not guaranteed to be valid in all
>> expressions.
>
> If I change $XS into XS[], I always get the error :
>
> GetDP : Error ('torus.pro' line 142): Unknown Function: XS
Weird... Maybe XS[] was not defined in the last official release. Can
you try with the "nightly-source" version? (cf. http://geuz.org/getdp/src/)
>
>> The "sign reversal" in D_inf comes from the fact that the elements in
>> your mesh are reversed in that region... Be careful to create your mesh
>> with normals pointing in the correct direction.
>
> Well... there is no reason why the result should depend on the
> orientation of that region...
>
> but your remark lead me to the solution !!!
>
> FUCK AN EGG !!! I found my mistake !
>
> I was using Normal[] instead of NormalSource[] !!!
>
> Now it works (with $XS...)
>
> Thanks,
>
> O.C.
>
>
--
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine