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MathGroup Archive 2003

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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
> > >
>



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