Re: contourf

[Quentin Spencer]

Carine Simon wrote:

> Hi all,
>
> I don't understand how to include colours in a contourf plot. Is it possible ?
> Another thing is: is there a way to do as Matlab i.e. precise the axes for
> contourf. For example doing something like contourf(xaxis, yaxis, matrix)
> A last point is that sometimes when I use contourf I get some errors like: 
> error: expecting integer index, found 2.291667
> error: evaluating argument list element number 1
> error: called from `contourf' in file
> `/usr/share/octave/2.1.71/site/m/octave-forge/plot/contourf.m'
>
> then I juste type the same contourf command and everything works.
>
> I am using octave 2.1.71 with the last octave-forge on Linux Fedora Core 3.
> A last point by the way: is it normal that each time I start octave I get the
> following warnings:
> warning: gset is deprecated and will be removed from a future
> warning: version of Octave.
> warning: You should use the higher-level plot functions
> warning: ("plot", "mesh", "semilogx", etc.) instead
> warning: of the low-level plotting commands.
> warning: If you absolutely must use this function, use the
> warning: internal version __gnuplot_set__ instead.
>  

I don't know the answer to your contourf question, but the warnings are 
due to the internal switch in octave from gset to __gnuplot_set__ which 
occured I think at 2.1.69. Are you using the package I made at 
ftp://coffee.phys.unm.edu/pub/octave ? I thought I had removed all 
references to gset in the newest package, but maybe I missed one. I've 
upgraded to FC4, so I probably won't be updating those packages any 
more. If you ever see this problem with the FC4 package, let me know and 
I'll look into it.

-Quentin



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