Re: gnuplot-beta Digest, Vol 17, Issue 12

[Philipp K. J. <ja...@ie...>]

>
> Message: 1
> Date: Sun, 28 Oct 2007 17:30:36 -0700
> From: Ethan A Merritt <merritt@u.washington.edu>
> Subject: Re: Ggn...@li... crashing for
> 	"hidden3d undefined" ?
> To: gnu...@li...
> Cc: Thomas Sefzick <t.s...@fz...>, Hans-Bernhard Br?ker
> 	<HBB...@t-...>
> Message-ID: <200710281730.36644.merritt@u.washington.edu>
> Content-Type: text/plain;  charset="iso-8859-1"
>
> On Sunday 28 October 2007 15:11, Hans-Bernhard Br?ker wrote:
> > Mouse interaction doesn't really have much to do with this --- or
> > rather, it shouldn't.
>
> Maybe I mis-understood the original bug report, but certainly the
> problems that I have observed myself are directly due to mouse
> interaction.  What happens, as Thomas described a moment ago, is that
> if you use the middle mouse button to zoom in the vertical, then the
> program dies on an assert test just before the plotted surface
> reaches the edge of the plot area.  There is no particular reason that
> the program could not continue to zoom further; it would just have to
> clip to the top boundary of the plot.   And that is exactly what
> version 4.0 does.  The 1.53 -> 1.54 patch was the exact change that
> broke this.
>


Just to clarify: My original bug report did NOT
involve any mouse interaction. (Although I
have also observed the behavior that Ethan
describes when dragging with middle mouse
button pressed).

By the way, here is another (similar? related?)
problem:

set xyplane at -10
splot exp(-x**2-y**2)

Crashes (but WITHOUT any assertions being
fired).

For comparison:

set xyplane at -0.1
splot exp(-x**2-y**2)

is fine. 

Best,

		Ph.