Re: plotting streamlines from vector data

*To*: mathgroup at smc.vnet.net*Subject*: [mg44612] Re: plotting streamlines from vector data*From*: "Gartek" <bgarda at nospam.agh.edu.pl>*Date*: Tue, 18 Nov 2003 06:41:41 -0500 (EST)*References*: <bm85d6$g11$1@smc.vnet.net> <bmg0ho$e90$1@smc.vnet.net> <botdb3$cla$1@smc.vnet.net> <bovebr$ksf$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Ofcourse it is known problem and solved perfectly. I managed it useing my C++ compilator and Runge Kuta alghorytm and Spline interpolation, but I meant that in mathematica simply useing InterpolationFunction is not so easy (see that Abhijit said:" I haven't yet used mathematica"). Ofcourse I know that for you was 1/4 hour, but if you make it again it is going to take you 1/5. Bytheway your pictures look realy nice for me, good work. Sincerly Gartek Jens-Peer Kuska wrote:> Hi, > > even if you don't understand german, have a look at > http://phong.informatik.uni-leipzig.de/~kuska/visualsupp/visualsc.pdf > > pages 31--55. All pictures are made with Mathematica and some small > additional tools. I can tell you it *is* so easy as it said -- no > picture > took me more than a 1/4 hour .. > > Regards > Jens > > Gartek wrote: > > > > Oh, it is nice to have tha aspect i dealt with about one year ago. > > I did exatly what is sad below but I could not get any reasoable solution. > > I still dont know what was the problem. I put the data of the field with > > very densly resolution, but it didnt help. > > So I gave away and quit. So I'd like to say that it is not going to so easy > > as it is said in the previous news. > > Sincerly > > Bartek > > > > U¿ytkownik "Jens-Peer Kuska" wrote > > > Hi, > > > > > > make a interpolation from the data for the x and y component > > > of the field and use NDSolve[] to compute the stream line. > > > > > > Regards > > > Jens > > > > > > Abhijit wrote: > > > > > > > > Hi, > > > > I haven't yet used mathematica. But i am interested in knowing the > > > > following --- > > > > I have a data file, in where i have columns for for x & y > > > > co-ordinates and columns for velocities u and v. can i plot > > > > streamlines using this data file ,in mathematica. > > > > if yes, please guide me to how to do it. > > > > thanx, > > > > abhijit > > > >