Hello. How about GrADS(http://grads.iges.org/grads/grads.html) , not R related one, used in meteorology?
Formerly it can deal with only gridded data, but currently seems to support station data(irregular spaced data). Regards > On Thu, 12 Oct 2006, massimodisasha wrote: > > > hi, i'm tring to plot a streamline my set of data > is like this : > > > > > Vectors: dx dy u > > > v lat > lon > > > > -6.25000 -2.50000 1.717 -7.092 > > > 40.644167 14.092523 > > -6.25000 -1.25000 1.631 -9.520 > > > 40.655418 14.092523 > > -6.25000 0.00000 1.251 -12.137 > > > 40.666667 14.092523 > > -6.25000 1.25000 0.313 -12.531 > > > 40.677914 14.092523 > > -5.00000 -2.50000 2.789 -4.769 > > > 40.644167 14.107351 > > -5.00000 -1.25000 1.593 -7.360 > > > 40.655418 14.107351 > > -5.00000 0.00000 1.259 -9.956 > > > 40.666667 14.107351 > > -5.00000 1.25000 -0.763 -17.315 > > > 40.677914 14.107351 > > ...... > > ........ > > _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo