Re: [ferret_users] def view/axes

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Prasad and Jaison,
Yes, this bug was reported a few months ago.  We have a fix for it which 
will be in the next Ferret release.  Thanks Jaison for finding a way to 
work around it until that release is ready.

Ansley

Jaison Kurian wrote:

> Hi,
>     One more point to add to Prasad's description: if we remove 
> "/AXES" qualifier to the "define viewport" command (the old style 
> defenition), the
> problem disappears.
>
>  In summary : When the following three commands/options are present in 
> the
>                 jnl script, Ferret gives segmentation fault with repeated
>                 execution. (removing any one of them will keep the script
>                 going).
>
>                1.  /AXES   to define viewport command
>                2.  go portrait (or just set window/aspect=1.3)
>                3.  set mode metafile
>
>  Fix :  The easy fix is to add "cancel mode meta" towards the end of
>            the script since we often need to use /AXES  and portrait
>            options.
>
> Regards,
>
> Jaison
>
> On Tue, 7 Feb 2006, Prasad Thoppil (Forn-Natl) wrote:
>
> > Hello!
> > If I execute my script testview.jnl twice, ferret terminates with a
> > segmentation fault.
> >
> > $ ferret
> >        NOAA/PMEL TMAP
> >        FERRET v5.80
> >        Linux(g77) 2.4.20 - 01/03/05
> >         7-Feb-06 15:48
> >
> > yes? go testview.jnl
> > go portrait
> > use coads_climatology
> > def view/axes/xlim=0.2:0.5/ylim=0.2:0.5 v1
> > set mode metafile
> > set viewport v1
> > fill/l=1 sst
> > xx  (ASSUME THAT THIS IS SOME ERROR)
> > **ERROR: unknown command: xx
> > xx
> > Command file, command group, or REPEAT execution aborted
> > yes? go testview.jnl  (MY SECOND TRY)
> > go portrait
> > use coads_climatology
> > def view/axes/xlim=0.2:0.5/ylim=0.2:0.5 v1
> > Re-defining viewport V1
> > set mode metafile
> > set viewport v1
> > Segmentation fault
> > $
> >
> > It works fine when I try this by removing
> > (1). go portrait
> > (2). set mode metafile /cancel mode metafile (keep go portrait)
> >
> > Thanks
> > Prasad