I am not sure if i understand your problem.
there are several examples availabel:
If this is not what you want perhaps you can suply a few sample data
an explain what you have tried and what you expect to see.
Am 06.06.2012 19:22, schrieb Topmmy:
> Did you ever get any response? It seems that you did not.
> I have the same question!
> hamidamini wrote:
>> with gnuplot
>> I need to have 2d contour plot from a file (say ss.dat) with three column,
>> first and secend columns are X and Y respectively and the third column is
>> magnitude (I need to have this magnitude with labels on it in 2d plot).
>> Thanks in advance