Re: [ferret_users] incorrect gif files

[Ge Peng <gpeng@xxxxxxxxxxxxxxxxxxxxxxx>]

> Hi Peng,
> This is a bug.
>
> I looked more closely at the commands you're using, and did some
> experiments of my own, and it seems that the /VLIM=40:0:2 which you have
> used to reverse the vertical axis is what is causing the SHADE command
> in gif mode to go wrong.  I think this goes all the way back to 2003,
> when we implemented a new method of drawing SHADE plots in gif mode
> (http://ferret.pmel.noaa.gov/FERRET_17sep07/Documentation/Release_Notes/v553.html#cellarray)
> .
>
>     ferret -gif
>     yes? shade/i=1:40/j=1:40/vlim=40:0:2 i+j
>     yes? frame/file=xx.gif
>
> the output shows what you reported - a blank rectangle and a colorbar.
>
> In the meantime, while we work on this, a workaround is to draw the plot
> a second time; an overlay plot is not done with the cellarray call
> that's used for gif mode.
>
>     ferret -gif
>     yes? shade/i=1:40/j=1:40/vlim=40:0:2 i+j
>     yes? shade/overlay/nolabel/i=1:40/j=1:40/vlim=40:0:2 i+j
>     yes? frame/file=xx.gif
>
>
>
> Ansley

Hi Ansley,

I got the correct gif images using your fix.

Thanks a lot!

--- Peng
>
> Ge Peng wrote:
>>> Hi Peng,
>>> We need more information to find out what's happening. If possible,
>>> could you construct an example of the problem that uses data that's
>>> part
>>> of the Ferret distribution, or is available via opendap?  Also, what
>>> version of Ferret are you running and on what platform?  If you run
>>> Ferret in standard, non-gif mode, are the image files by
>>> frame/file=name.gif  correct?
>>>
>>> Ansley
>>>
>>
>> Hi Ansley,
>>
>> Thanks for your reply.
>>
>> I am running ferret v6 on unix:
>>
>> % ferret
>>         NOAA/PMEL TMAP
>>         FERRET v6
>>         Linux(g77) 2.4.21-32 - 08/23/06
>>          8-Sep-08 14:00
>> yes?
>>
>> The image files by frame/file=name.gif are actually correct when running
>> Ferret in standard, non-gif mode.
>>
>> This is very interesting as in the past, I seem to have more problems
>> when
>> trying to generate gif files in the non-gif mode.
>>
>>
>> --- Peng
>>
>>
>>
>>
>>> Ge Peng wrote:
>>>
>>>> Hi, I am trying to create gif files using the ferret script at the
>>>> bottom
>>>> of this message. Figures looked fine in the normal ferret mode on my
>>>> computer screen with frame commands commented out. However, I only got
>>>> picture frames without color filled contours in the gif files using
>>>> ferret
>>>> -gif (see the attached fig).
>>>>
>>>> Does any one know what is going on?
>>>>
>>>> Thanks a lot,
>>>>
>>>> --- Peng
>>>>
>>>> ----------------------------------------
>>>> cancel data/all
>>>> cancel sym/all
>>>> cancel region/all
>>>>
>>>>
>>>> define symb dpath_in=/seal1/gpeng/mom4_trip_sim/dta/dynamicMode
>>>> define symb runid=temp_anom_jmax_check_mom4_trip
>>>> define symb runid2=salt_anom_jmax_check_mom4_trip
>>>>
>>>> define symb dpath_out=/seal1/gpeng/mom4_trip_sim/fig/dynamicMode
>>>>
>>>> use "($dpath_in)/ts_kmu_check_mom4_trip.nc"
>>>>
>>>> set region/j=410
>>>> sp rm -f ($dpath_out)/($runid).gif
>>>> sp rm -f ($dpath_out)/($runid2).gif
>>>>
>>>> let ocean_t = if (temp_t gt -99.9) then 1 else 0
>>>> let ocean_u = if (temp_u gt -99.9) then 1 else 0
>>>>
>>>> let temp_t_ocn = temp_t*ocean_t
>>>> let temp_t_anom =temp_t_ocn - temp_t_ocn[i=@ave]
>>>>
>>>> let temp_u_ocn = temp_u*ocean_u
>>>> let temp_u_anom =temp_u_ocn - temp_u_ocn[i=@ave]
>>>>
>>>> let salt_t_ocn = salt_t*ocean_t
>>>> let salt_t_anom =salt_t_ocn - salt_t_ocn[i=@ave]
>>>>
>>>> let salt_u_ocn = salt_u*ocean_u
>>>> let salt_u_anom =salt_u_ocn - salt_u_ocn[i=@ave]
>>>>
>>>> cancel viewport ul ll ur lr
>>>>
>>>> define viewport/xlimits=0.03,0.49/ylim=0.53,0.97 ul
>>>> define viewport/xlimits=0.03,0.49/ylim=0.03,0.49 ll
>>>> define viewport/xlimits=0.53,0.97/ylim=0.53,0.97 ur
>>>> define viewport/xlimits=0.53,0.97/ylim=0.03,0.49 lr
>>>>
>>>> set viewport ul
>>>> shad/vlimits=40:0:2 temp_t_ocn
>>>>
>>>> set viewport ur
>>>> shad/vlimits=40:0:2 temp_u_ocn
>>>>
>>>> set viewport ll
>>>> shad/vlimits=40:0:2 temp_t_anom
>>>>
>>>> set viewport lr
>>>> shad/vlimits=40:0:2 temp_u_anom
>>>>
>>>> frame/file="($dpath_out)/($runid).gif"
>>>>
>>>> cancel viewport ul ll ur lr
>>>>
>>>> define viewport/xlimits=0.03,0.49/ylim=0.53,0.97 ul
>>>> define viewport/xlimits=0.03,0.49/ylim=0.03,0.49 ll
>>>> define viewport/xlimits=0.53,0.97/ylim=0.53,0.97 ur
>>>> define viewport/xlimits=0.53,0.97/ylim=0.03,0.49 lr
>>>>
>>>> set viewport ul
>>>> shad/vlimits=40:0:2 salt_t_ocn
>>>>
>>>> set viewport ur
>>>> shad/vlimits=40:0:2 salt_u_ocn
>>>>
>>>> set viewport ll
>>>> shad/vlimits=40:0:2 salt_t_anom
>>>>
>>>> set viewport lr
>>>> shad/vlimits=40:0:2 salt_u_anom
>>>>
>>>> frame/file="($dpath_out)/($runid2).gif"
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>>
>>
>>
>>
>