Re: plot and image demos

[Rik]

>
> ------------------------------------------------------------------------
> Subject:
> plot and image demos
> From:
> "John W. Eaton" <address@hidden>
> Date:
> Wed, 27 May 2009 12:48:18 -0400
> To:
> octave maintainers mailing list <address@hidden>
>
> To:
> octave maintainers mailing list <address@hidden>
>
>
> Using the current development version I just did
>
>   more off
>   rundemos plot
>   rundemos image
>
> and stepped through all the demos and everything looks good except
> for the following:
>
>   * the demo for comet causes the plot window to grow in the vertical
>     dimension (hmm, this happened twice, but then it seems to not be
>     100% repeatable).
>
>   * the first surfl demo, the contrast demo, and the first imshow demo
>     all showed the warning
>
>       warning: range error for conversion to character value
>
>     but that only happened when running all the demos with rundemos
>     plot followed by rundemos image, not when running them
>     individually.
>
>   * sombrero produced warnings from gnuplot
>
>       multiplot> et origin 0, 0
>                  ^
>                  line 1092: invalid command
>
>       Press <enter> to continue: 
>       multiplot> u
>                   nset view;
>                  ^
>                  line 1092: invalid command
>
>
>
>     but this only happened once (?!).  Other runs of this demo seemed
>     to work OK.  So I don't know what might have caused problems
>     sending data to gnuplot.
>
> Does anyone else see these problems?  Any clues about what could be
> causing the warnings?  Is something sometimes not reset properly when
> a new figure is created?
>   
Something is odd.  I don't get any of the errors above but I do get a
different one.  When running example 3 of axis.m gnuplot returns "line
8: Internal error : unknown tic type" four times.

This is for the Mercurial tip with gnuplot 4.2.2.

--Rik