[ncl-talk] multiple colorbars on panel plot

[Laura Fowler]

Hi Mary:

Thanks for the suggestion. I had actually looked at this example in the
past, but for a different reason. That seems really simple. Let me try it
next.
Cheers,
Laura


On Mon, Aug 27, 2018 at 1:41 PM, Mary Haley <haley at ucar.edu> wrote:

> If I may interject: in general, if you want to use multiple color maps on
> a page, I suggest using cnFillPalette instead of gsn_define_colormap.
> cnFillPalette allows you to associate a color map directly with a contour
> plot, and you don't have to worry about what order you draw things in.
>
> See panel_26.ncl at:
>
> http://www.ncl.ucar.edu/Applications/panel.shtml#ex26
>
> Since you got things to work, it's not necessary to switch to this method.
> Using gsn_define_colormap is perfectly valid.
>
> --Mary
>
>
> On Mon, Aug 27, 2018 at 1:29 PM, Laura Fowler <laura at ucar.edu> wrote:
>
>> Hi Adam:
>>
>> You were right, of course. I am not sure what I was thinking. Here is my
>> updated plot.
>> Many thanks again,
>> Laura
>>
>>
>> On Mon, Aug 27, 2018 at 12:30 PM, Adam Phillips <asphilli at ucar.edu>
>> wrote:
>>
>>> Hi Laura,
>>> You have to create *and draw* the plots with the 1st colormap before
>>> you switch to the 2nd colormap and create the last two plots.
>>>
>>> Looking at test.ncl (and going with the 4-panel plot you're now making)
>>> you need to call gsn_panel and draw plot_B(:1) before you switch the
>>> colormap and create plot_B(2:3). Order of script:
>>> 1) Create plot_B(0) and plot_B(1).
>>> 2) Set gsnPanelTop and gsnPanelBottom; call gsn_panel and draw those two
>>> plots.
>>> 3) Switch the colormap.
>>> 4) Create plot_B(2) and plot_B(3).
>>> 5) Set gsnPanelTop and gsnPanelBottom; call gsn_panel and draw
>>> plot_B(2:3).
>>> 6) Advance the frame.
>>>
>>> Adam
>>>
>>> On Mon, Aug 27, 2018 at 12:20 PM Laura Fowler <laura at ucar.edu> wrote:
>>>
>>>> Hi Adam:
>>>>
>>>> Unfortunately, it did not work for me. I may have misunderstood the
>>>> changes that I needed to make. In my script, I call gsn_define_colormap
>>>> before plotting the individual plots since I have a colorbar under each
>>>> individual plot. So even when I called gsn_panel for the first 4 plots, I
>>>> still get the colorbar that I called last.
>>>>
>>>> Here is the updated plot where now the 4 top plots use the one I
>>>> assigned to the difference plot. See test.ncl in
>>>> /gpfs/fs1/scratch/laura/
>>>>
>>>> Many thanks,
>>>> Laura
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Aug 27, 2018 at 11:58 AM, Adam Phillips <asphilli at ucar.edu>
>>>> wrote:
>>>>
>>>>> Hi Laura,
>>>>> Yes, you should call gsn_panel twice, drawing the first 4 plots in the
>>>>> first call and the last two plots in the second call. Something like this:
>>>>>
>>>>> ; create plots 1-4
>>>>>
>>>>> panres = True
>>>>> panres at gsnFrame = False
>>>>> panres at gsnPanelTop = .95
>>>>> panres at gsnPanelBottom = .35
>>>>> gsn_panel(wks,plot(:3),(/2,2/),panres)
>>>>>
>>>>> ; switch colormap and create plots 5-6
>>>>>
>>>>> panres at gsnPanelTop = .35
>>>>> panres at gsnPanelBottom = .05
>>>>> gsn_panel(wks,plot(4:),(/1,2/),panres)
>>>>> frame(wks)
>>>>>
>>>>> The gsnPanelTop/gsnPanelBottom settings for each gsn_panel call might
>>>>> have to be adjusted.
>>>>> Hope that helps, if you have further questions let ncl-talk know.
>>>>> Adam
>>>>>
>>>>> On Mon, Aug 27, 2018 at 11:49 AM Laura Fowler <laura at ucar.edu> wrote:
>>>>>
>>>>>> Hello:
>>>>>>
>>>>>> I am attaching a plot that shows 6 different plots in one panel plot.
>>>>>> The two bottom plots e) and f) are differences of the two plots above them.
>>>>>> The plots a) b), c), and d) use my user define colorbar.
>>>>>>
>>>>>> Is there a way to use the colorbar precip_diff_12lev instead of my
>>>>>> own colorbar for the bottom 2 plots so that I can have white in the middle
>>>>>> since it is a different plot while using my own colorbar for the top 4
>>>>>> plots? When I redefine gsn_colormap before plotting the last 2 plots, then
>>>>>> all 6 plots use colorbar precip_diff_12lev? I put my ncl script in
>>>>>> /gpfs/fs1/scratch/laura/panel.dqvcup.ncl in case one wants to take a
>>>>>> pick?
>>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>> Laura
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> !-----------------------------------------------------------
>>>>>> --------------------------------------------------
>>>>>> Laura D. Fowler
>>>>>>
>>>>>> Mesoscale and Microscale Meteorology Division (MMM)
>>>>>> National Center for Atmospheric Research
>>>>>> P.O. Box 3000, Boulder CO 80307-3000
>>>>>>
>>>>>> e-mail: laura at ucar.edu
>>>>>> phone: 303-497-1628
>>>>>>
>>>>>> !-----------------------------------------------------------
>>>>>> --------------------------------------------------
>>>>>> _______________________________________________
>>>>>> ncl-talk mailing list
>>>>>> ncl-talk at ucar.edu
>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Adam Phillips
>>>>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>>>>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>>>>
>>>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> !-----------------------------------------------------------
>>>> --------------------------------------------------
>>>> Laura D. Fowler
>>>>
>>>> Mesoscale and Microscale Meteorology Division (MMM)
>>>> National Center for Atmospheric Research
>>>> P.O. Box 3000, Boulder CO 80307-3000
>>>>
>>>> e-mail: laura at ucar.edu
>>>> phone: 303-497-1628
>>>>
>>>> !-----------------------------------------------------------
>>>> --------------------------------------------------
>>>>
>>>
>>>
>>> --
>>> Adam Phillips
>>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>>
>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>
>>
>>
>>
>> --
>> !-----------------------------------------------------------
>> --------------------------------------------------
>> Laura D. Fowler
>>
>> Mesoscale and Microscale Meteorology Division (MMM)
>> National Center for Atmospheric Research
>> P.O. Box 3000, Boulder CO 80307-3000
>>
>> e-mail: laura at ucar.edu
>> phone: 303-497-1628
>>
>> !-----------------------------------------------------------
>> --------------------------------------------------
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>


-- 
!-------------------------------------------------------------------------------------------------------------
Laura D. Fowler

Mesoscale and Microscale Meteorology Division (MMM)
National Center for Atmospheric Research
P.O. Box 3000, Boulder CO 80307-3000

e-mail: laura at ucar.edu
phone: 303-497-1628

!-------------------------------------------------------------------------------------------------------------
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