[amscosta]

Hi All,
I am trying to access the first cell of a given plane boundary zone, instead of using
the begin_f_loop(f,t) (that does the job but loops over all faces of the boundary zone).
Any piece of advice for the udf gurus are very welcome.
Thanks
Alex

[AlexanderZ]

I dont know the way to access face/cell without loops

you can do following

n = 0;
begin_f_loop(f,t)
{ if (n<1)
   { //do whatever you want}
   n++;
}

{ //do whatever you want} will be executed once