Re: Octave - is there a possibilty to access the data of a plotted curve

[Werner Koenig]

On 05.09.2013 20:13, Ben Abbott wrote:
> On Sep 5, 2013, at 1:21 PM, Werner Koenig wrote:
>
> > Hello List,
> >
> > in  matlab there is a possiblity to have a direct
> > access to plotted curve. With the following code snippet
> > you get a curve a handle and therefor you can query
> > curve data  like XData, YData and so on.
> >
> > h = gco;
> > co=get(h); % search for active curve
> > x = co.XData;
> > y = co.YData;
> >
> > I have searched in the internet for a similar approach
> > to do it with octave, but I found no solution.
> > Is there a way to do this job with octave and when what
> > is the solution.
> >
> > So long Werner
> I don't think the gco() command is supported by Octave yet.  However the rest 
> of it should work.
>
>         h = plot (rand (1, 10));
>         x = get (h, "xdata");
>         y = get (h, "ydata");
>
> Ben

Hello Ben, hello List,

you are right, it works. My problem now, is that I have to
save and manage the handles form different curves for
myself. But I think  over a global list, perhaps a global stack or
a file, I can do this job. With the gco() my job would be easier.

So long Werner