Re: 5.2-stable regression for log axes still not fixed completely

[Achim G. <Str...@ne...>]

Achim Gratz writes:
> Right now it's somewhere in a 1800 pages PDF report, I'll have to
> isolate the offending plots and get at the gnuplot code for that.  For
> now I only know that those plots I've looked at didn't show any
> unexpected defects, so the warning seems to be spurious as far as the
> result goes.

This one _should_ be simple to fix: The warnings get issued when a
previous plot used a reverse linear axis that is constrained to negative
values and the next plot uses a logarithmic axis.  To reproduce:

--8<---------------cut here---------------start------------->8---
set xrange [-2*pi:-pi] reverse
set xrange [*:*] noreverse
set log x
--8<---------------cut here---------------end--------------->8---

The error does not happen if the max of the first xrange is positive.
It seems that switching on autoscale does not correctly invalidate some
of the internal variables set up by the first xrange.

The explanation for why this error is not having consequences on my
plots is that the correct range for the (now logarithmic) axis will
always be set later on.


Regards
Achim.
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