Re: gnuplot alternatives on Windows

[Dmitri A. Sergatskov]

On 5/30/06, Quentin Spencer <address@hidden> wrote:

> Basically, we have a windows-based data collection system, and I would
> like to use octave to visualize data in near real-time as it's being
> collected to verify that I have what I want. So, the plotting is the
> application in this case. The data collection will involve travel to a
> remote site, and it is important to verify while on site that we have
> good data so that the trip doesn't need to be repeated. Then I can do
> all the post-processing I want (on Linux, my preferred platform) when I
> get back to the office.
>
> Doing some data reduction to speed it up is an option, but it's
> frustrating to see Matlab plot something big in a couple of seconds and
> then watch octave and gnuplot spend close to a full minute doing the
> same thing. Supposedly the gnuplot folks are working on this, though.

Quentin,

I think one of the problem with gnuplot and run-time graphics is that
gnuplot has to re-plot entire data set every time you add a single data
point. It is really a batch-oriented plotting tool.
Have you looked at GNU plotutils? Unlike gnuplot they can add a
point to existing plot without re plotting entire dataset. There is
no existing octave interface, but since plotutils can take data from stdin
you should be able to hack one...

> Quentin

Sincerely,
Dmitri.
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