Re: [Gnuplot-info] Gnuplot 5.1 Warning and Incorrect Plot

[Ethan M. <eam...@gm...>]

On Friday, 10 July 2015 09:04:22 AM Thomas D. Dean wrote:
>  > uname -a
> Linux P9X79 3.13.0-51-generic #84-Ubuntu SMP Wed Apr 15 12:08:34 UTC 
> 2015 x86_64 x86_64 x86_64 GNU/Linux
> 
>  > gnuplot electron.dem
> 
> Warning: slow font initializationHit return to 
> continueqt_processTermEvent received a GE_fontprops event. This should 
> not have happened
> 
> The first plot is over-zoomed so the title and labels are just off the 
> display.  The next plot is correct.  If I do the plots manually, line by 
> line, the first plot is still not correct.  But, if I issue the plot 
> command again, I get a correct plot.
> 
> Is this a known problem?  

So far as I know the error message means exactly what it says.
The request to the system for a font took so long that gnuplot
decided to stop waiting for it and tried to draw the plot with
only a guess at font information.  Because of this, the sizing
and placement of elements in the font is not correct.

This can happen if you request a font that has buggy metrics
(some very old *.ttf fonts for example), but can also come if the
font is not already in the system or per-user font cache and the
system is just plain slow in searching/loading it from disk.
In the latter case the problem should go away if you repeat the
plot sequence, because now it is in the font cache.

This seems to be a recurring problem on OSX, but I have only seen it
on linux if the font is being used for the very first time and 
therefore none of the font metrics are cached.

	Ethan


> Any fix?
> 
> Tom Dean
> 
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