From owner-help-octave at bevo dot che dot wisc dot edu  Tue Nov 26 15:07:24 1996
Subject: Re: working directory for gnuplot 
From: Mario Storti <mstorti at galileo dot unl dot edu dot ar>
To: help-octave at bevo dot che dot wisc dot edu
Date: Tue, 26 Nov 1996 18:10:26 -0300


>>>>> On Tue, 26 Nov 1996 12:42:43 -0800 (PST), 
       Heber Farnsworth <heberf at u dot washington dot edu> said:


> On Tue, 26 Nov 1996, Mario Storti wrote:
> 
> > 
> > Hi all!
> > 
> > I have the following problem when using the gplot command. If I
> > change directory during the Octave session, then commands like:
> > 
> > gplot "myfile"
> > 
> > doesn't work because it seems that gnuplot doesn't track the change of
> > directory. I ask if someone else has found this, and if there is a
> > workaround/fix/patch.
> 
> The simplest workaround I can think of is to load the data in myfile into
> a matrix.  If you just want to plot data in a file you don't need Octave
> at all.  Octave plotting commands are designed for plotting vectors or
> matrices in the workspace.

I'm working with finite element meshes. I make them in Octave. To plot
them, the  contour of each "finite element"  is  a curve  with 4  or 5
points depending if the element is a  triangle o quadrangle, so that I
have  to plot  a   lot of  curves,   let's  say 5,000 curves   (finite
elements). Now,  the "matlab-style" plot commands  have the problem of
not allowing more  than  a limited number   of curves. So that  I  use
directly gplot for plotting meshes.

> 
> 
> > 
> > Mario
> > 
> 
>   Heber Farnsworth                               | Department of Finance
>   Univerity of Washington                        | Box 353200
>   tele:  (206) 528-0793 home                     | Seattle, WA 98195-3200
>   tele:  (206) 543-4773 finance     web: http://weber.u.washington.edu/~heberf
>   fax:   (206) 685-9392             email: heberf at u dot washington dot edu
> 

>>>>> Tue, 26 Nov 1996 14:54:04 -0600"Dutt, Vinayak, Ph.D." <dutt dot vinayak at mayo dot edu> (Vinayak Dutt) 


> I guess best fix for it would be to fix the octave cd command such that it
> would run cd command on gnuplot also if gnuplot was running.
> 
> I have not tried this myself, but running "closeplot" command before the gplot
> command could also fix the cd command problem. "closeplot" closes the gplot
> pipe and hence next gplot command should start a new pipe to gnuplot which would
> hopefully be started in the correct directory.
> 
> 
> 
> Vinayak Dutt
> 
> Ultrasound Research
> Mayo Clinic
> Rochester MN 55905
> E-Mail: dutt dot vinayak at mayo dot edu

Yes!! That fixed the problem. Thanks!!!!

Mario

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