Re: animate

["Kevin O'Brien" <kobrien@xxxxxxxxxxxxx>]

Hello Patrick -

As far as creating animations on your Linux system goes, I think you'll find that
the reason you are getting blank pages after the first image is drawn is because
your Xserver isn't using backing store.  If you do a "xdpyinfo", you should see a
line like:

      options:    backing-store YES, save-unders YES

Except in your case, I believe both options will be "NO".  When starting the
Xserver, you'll want to make sure that the option "+bs" is used - this will turn on
the backing store and enable you to see the animations on your Linux machine.

I'm not sure what is going on with the Alpha/OSF problem - I will look into that...

Let me know if you have any questions -

Kevin

Patrick Jöckel wrote:

> Dear Ferreters,
>
> can you help me with the following problem(s)?
> When I try to animate a sequence, I have two options.
> On Dec/Alpha Ferret crashes, and on Linux it
> shows only empty (white) pages, except for the first frame.
> Please note the protocols below.
> Is this a known problem and is there a workaround ?
> Any help is very much appreciated.
>
> Sincerely,
>
>           Patrick Joeckel
>
>
> ! ----- Dec/Alpha OSF1, 4.0f ---------------------------------------
>    !     NOAA/PMEL TMAP
>    !     FERRET v5.40
>    !     Tru64 V4.0E - 02/19/02
>    !     26-Apr-02 13:27
>
> yes? use my.nc
> yes? shade AN[k=28,l=1]                                      ! works
> yes? repeat/animate/l=1:10 shade AN[k=28]      ! crashes
> !-> REPEAT: L=1
> !-> REPEAT: L=2
> Xlib: unexpected async reply (sequence 0xa4d)!
> !
> -------------------------------------------------------------------------------
>
> ! ------ SuSE Linux 8.0, kernel 2.4x-smp ------------------------------
>    !     NOAA/PMEL TMAP
>    !     FERRET v5.40
>    !     Linux 2.4.3-12smp - 02/19/02
>    !     26-Apr-02 13:30
>
> yes? shade AN[k=28,l=1]
> yes? repeat/animate/l=1:10 shade AN[k=28]
> !-> REPEAT: L=1        ! visible
> !-> REPEAT: L=2        ! white
> !-> REPEAT: L=3        ! white
> !-> REPEAT: L=4        !   ...
> !-> REPEAT: L=5
> !-> REPEAT: L=6
> !-> REPEAT: L=7
> !-> REPEAT: L=8
> !-> REPEAT: L=9
> !-> REPEAT: L=10
> yes?
> ! --------------------------------------------------------------------------
>
> --
> ---------------------------------------------------------------
> Dr. Patrick Joeckel
> Max Planck Institute for Chemistry
> Joh.-J. Becher Weg 27
> 55128 Mainz                   phone:++49-6131-305452
> Germany                       fax  :++49-6131-305436
>                              e-mail:joeckel@mpch-mainz.mpg.de
>                          http://www.mpch-mainz.mpg.de/~joeckel
> ---------------------------------------------------------------
> Never trust an operating system you don't have sources for.

--
Kevin O'Brien                   UW/JISAO
Research Scientist              NOAA/PMEL/TMAP
206-526-6751                    http://tmap.pmel.noaa.gov