Re: empty data-files

[Petr M. <mi...@ph...>]

> But if you try to plot 2 data-files, one empty the other not, you get
> the same answer, and that is not OK. There _is_ something to plot. That
> situation may arise if the data-files and the gnuplot script are
> generated automatically.
>
> So I think that in plot2d.c:
>
> int_error(c_token, "no valid data points found in specified file");
>
> should be replaced with:
>
> int_warn(c_token, "no valid data points found in specified file");

This behviour is fine with me, just there should be an int_error("nothing to
plot") if there was only a single (empty) file to plot. Please update your
patch, add taking care of 3d plots.

What should happen here:
 plot x*x, 'empty.dat'

?? Currently it reports an empty x-range.

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PM