[ncl-talk] RGB triplets colormap --> Two different figures, same script.
Rick Brownrigg
brownrig at ucar.edu
Fri Jun 1 13:28:15 MDT 2018
Yes, Rashed is exactly correct (Thanks Rashed!). Because the first two
colors in your colormap are very nearly white, and while the titles and
other annotations are being drawn, they are nearly indistinguishable from
the white background (you can see them very faintly however).
On Fri, Jun 1, 2018 at 11:30 AM, Rashed Mahmood <rashidcomsis at gmail.com>
wrote:
> I think, the reason is that *for gsn_define_colormap*, you need to add
> both background and foreground colours in the list when explicitly defining
> colours triplets. So, in your list of color triplets, the second entry
> should be "(/0.,0.,0./)".
>
> Replace the colors variable in your script with following:
>
> colors = (/"(/1.00, 1.00, 1.00/)","(/0.,0.,0./)", "(/0.98, 0.99,
> 1.00/)", \
> "(/0.98, 0.99, 1.00/)", "(/0.96, 0.98, 0.99/)", \
> "(/0.95, 0.98, 0.99/)", "(/0.94, 0.98, 0.99/)", \
> "(/0.93, 0.97, 0.99/)", "(/0.92, 0.97, 0.99/)", \
> "(/0.91, 0.96, 0.99/)", "(/0.90, 0.96, 0.99/)", \
> "(/0.89, 0.96, 0.99/)", "(/0.88, 0.95, 0.99/)", \
> "(/0.87, 0.95, 0.98/)", "(/0.86, 0.94, 0.98/)", \
> "(/0.85, 0.94, 0.98/)", "(/0.84, 0.94, 0.98/)", \
> "(/0.83, 0.93, 0.98/)", "(/0.82, 0.93, 0.98/)", \
> "(/0.81, 0.92, 0.98/)", "(/0.80, 0.92, 0.98/)", \
> "(/0.79, 0.92, 0.98/)", "(/0.78, 0.91, 0.98/)", \
> "(/0.77, 0.91, 0.98/)", "(/0.76, 0.90, 0.98/)", \
> "(/0.74, 0.90, 0.98/)", "(/0.74, 0.90, 0.98/)", \
> "(/0.72, 0.89, 0.97/)", "(/0.71, 0.89, 0.97/)", \
> "(/0.70, 0.89, 0.97/)", "(/0.69, 0.88, 0.97/)", \
> "(/0.69, 0.88, 0.97/)", "(/0.67, 0.87, 0.97/)", \
> "(/0.66, 0.87, 0.97/)", "(/0.65, 0.87, 0.97/)", \
> "(/0.64, 0.86, 0.97/)", "(/0.63, 0.86, 0.96/)", \
> "(/0.61, 0.85, 0.96/)", "(/0.60, 0.84, 0.96/)", \
> "(/0.59, 0.83, 0.96/)", "(/0.58, 0.83, 0.95/)", \
> "(/0.58, 0.82, 0.94/)", "(/0.57, 0.81, 0.94/)", \
> "(/0.56, 0.80, 0.94/)", "(/0.55, 0.80, 0.93/)", \
> "(/0.54, 0.79, 0.92/)", "(/0.53, 0.78, 0.92/)", \
> "(/0.52, 0.77, 0.92/)", "(/0.51, 0.76, 0.91/)", \
> "(/0.50, 0.75, 0.90/)", "(/0.49, 0.74, 0.90/)", \
> "(/0.49, 0.74, 0.90/)", "(/0.48, 0.73, 0.89/)", \
> "(/0.47, 0.72, 0.89/)", "(/0.46, 0.71, 0.88/)", \
> "(/0.45, 0.70, 0.88/)", "(/0.44, 0.70, 0.87/)", \
> "(/0.43, 0.69, 0.87/)", "(/0.42, 0.68, 0.86/)", \
> "(/0.41, 0.67, 0.86/)", "(/0.40, 0.67, 0.85/)", \
> "(/0.40, 0.66, 0.85/)", "(/0.39, 0.65, 0.85/)", \
> "(/0.38, 0.64, 0.84/)", "(/0.37, 0.63, 0.83/)", \
> "(/0.36, 0.62, 0.83/)", "(/0.35, 0.61, 0.83/)", \
> "(/0.34, 0.61, 0.82/)", "(/0.33, 0.60, 0.81/)", \
> "(/0.32, 0.59, 0.81/)", "(/0.31, 0.58, 0.81/)", \
> "(/0.30, 0.58, 0.80/)", "(/0.30, 0.57, 0.80/)", \
> "(/0.28, 0.55, 0.79/)", "(/0.28, 0.56, 0.77/)", \
> "(/0.28, 0.56, 0.76/)", "(/0.28, 0.56, 0.74/)", \
> "(/0.28, 0.57, 0.73/)", "(/0.28, 0.57, 0.72/)", \
> "(/0.28, 0.58, 0.70/)", "(/0.28, 0.58, 0.69/)", \
> "(/0.28, 0.58, 0.67/)", "(/0.28, 0.59, 0.66/)", \
> "(/0.28, 0.60, 0.65/)", "(/0.28, 0.60, 0.63/)", \
> "(/0.28, 0.60, 0.62/)", "(/0.28, 0.61, 0.61/)", \
> "(/0.28, 0.61, 0.59/)", "(/0.28, 0.61, 0.58/)", \
> "(/0.28, 0.62, 0.56/)", "(/0.28, 0.62, 0.55/)", \
> "(/0.28, 0.63, 0.54/)", "(/0.28, 0.63, 0.52/)", \
> "(/0.28, 0.63, 0.51/)", "(/0.28, 0.64, 0.49/)", \
> "(/0.28, 0.64, 0.48/)", "(/0.28, 0.65, 0.47/)", \
> "(/0.28, 0.65, 0.45/)", "(/0.28, 0.65, 0.44/)", \
> "(/0.28, 0.66, 0.42/)", "(/0.28, 0.66, 0.41/)", \
> "(/0.28, 0.67, 0.40/)", "(/0.28, 0.71, 0.38/)", \
> "(/0.28, 0.68, 0.37/)", "(/0.28, 0.68, 0.35/)", \
> "(/0.28, 0.69, 0.34/)", "(/0.28, 0.69, 0.32/)", \
> "(/0.28, 0.69, 0.31/)", "(/0.28, 0.70, 0.30/)", \
> "(/0.28, 0.70, 0.27/)"/)
>
>
>
>
>
> On Fri, Jun 1, 2018 at 3:12 AM, Lara Quitián Hernández <
> laraquitianhernandez at gmail.com> wrote:
>
>> Hello,
>>
>> I just found the solution! If you use the *cnFillPalette* instead of
>> *gsn_define_colormap* function, it works! I do not know the reason
>> because it should also work with the "gsn" function (as the documentation
>> says), but at least it works.
>>
>> Regards,
>> Lara
>>
>> 2018-06-01 11:50 GMT+02:00 Lara Quitián Hernández <
>> laraquitianhernandez at gmail.com>:
>>
>>> OK. I will ask them.
>>>
>>> Thanks,
>>> Lara
>>>
>>> 2018-06-01 11:47 GMT+02:00 Guido Cioni <guidocioni at gmail.com>:
>>>
>>>> SOrry, I've just realized that you're using WRF functions, which I
>>>> actually don't know that much and use to cause many problems when they are
>>>> used in a slightly different configuration that they were intended to...
>>>> That may be the cause since I've used a similar setup, besides the WRF
>>>> functions, and it was working. Maybe you should write to wrf-ncl-help?
>>>>
>>>> On 1. Jun 2018, at 11:45, Guido Cioni <guidocioni at gmail.com> wrote:
>>>>
>>>> Hey Lara,
>>>> any chance you could also send the file? Or is it too large?
>>>>
>>>> On 1. Jun 2018, at 11:43, Lara Quitián Hernández <
>>>> laraquitianhernandez at gmail.com> wrote:
>>>>
>>>> Hello,
>>>>
>>>> I don't get any warning or error message...It's really weird.
>>>>
>>>> Of course, I attach my script. Thank you very much.
>>>>
>>>> Regards,
>>>> Lara
>>>>
>>>> 2018-06-01 11:29 GMT+02:00 Guido Cioni <guidocioni at gmail.com>:
>>>>
>>>>> Lara, this is indeed pretty weird...
>>>>> Do you get any warning while running the script?
>>>>> Also, could you attach the script so that we can take a look?
>>>>>
>>>>> Thanks
>>>>>
>>>>> On 1. Jun 2018, at 11:19, Lara Quitián Hernández <
>>>>> laraquitianhernandez at gmail.com> wrote:
>>>>>
>>>>> Good morning,
>>>>>
>>>>> I'm trying to display a particular field using a combination of RGB
>>>>> triplets. I have already defined them:
>>>>>
>>>>> *colors = (/"(/1.00, 1.00, 1.00/)", "(/0.98, 0.99, 1.00/)", \*
>>>>> *"(/0.98, 0.99, 1.00/)", "(/0.96, 0.98, 0.99/)", \*
>>>>> *"(/0.95, 0.98, 0.99/)", "(/0.94, 0.98, 0.99/)", \*
>>>>> *"(/0.93, 0.97, 0.99/)", "(/0.92, 0.97, 0.99/)", \*
>>>>> *"(/0.91, 0.96, 0.99/)", "(/0.90, 0.96, 0.99/)", \*
>>>>> *"(/0.89, 0.96, 0.99/)", "(/0.88, 0.95, 0.99/)", \*
>>>>> *"(/0.87, 0.95, 0.98/)", "(/0.86, 0.94, 0.98/)", \*
>>>>> *"(/0.85, 0.94, 0.98/)", "(/0.84, 0.94, 0.98/)"/)*
>>>>>
>>>>>
>>>>> *gsn_define_colormap(wks,colors)*
>>>>>
>>>>> However, I obtain a figure without title, tickmarks, time stamp,
>>>>> labelbar information, etc.
>>>>>
>>>>> <850hPa_ETH_416_2014-10-19_18:00:00.png>
>>>>> The issue is that when I use a predefined colormap without changing
>>>>> any other variable in my script:
>>>>>
>>>>>
>>>>> *gsn_define_colormap(wks,"WhiteBlueGreenYellowRed")*
>>>>>
>>>>> I obtain a complete figure with all predefined settings. Both images
>>>>> are generated with the same script, only by modifying the colormap
>>>>> function. What's going on?
>>>>>
>>>>> <850hPa_ETH2_416_2014-10-19_18:00:00.png>
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Regards,
>>>>> Lara
>>>>>
>>>>> -
>>>>>
>>>>>
>>>>> *Lara Quitián Hernández, PhD Student*
>>>>> Departamento de Física de la Tierra, Astronomía y Astrofísica
>>>>> Facultad de Ciencias Físicas
>>>>> Ciudad Universitaria, Plaza Ciencias, 1
>>>>> <https://maps.google.com/?q=Ciudad+Universitaria,+Plaza+Ciencias,+1+28040+Madrid.+Spain&entry=gmail&source=g>
>>>>> 28040 Madrid. Spain
>>>>> <https://maps.google.com/?q=Ciudad+Universitaria,+Plaza+Ciencias,+1+28040+Madrid.+Spain&entry=gmail&source=g>
>>>>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>>
>>>>>
>>>>> Guido Cioni
>>>>> http://guidocioni.altervista.org
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>> *Lara Quitián Hernández, PhD Student*
>>>> Departamento de Física de la Tierra, Astronomía y Astrofísica
>>>> Facultad de Ciencias Físicas
>>>> Ciudad Universitaria, Plaza Ciencias, 1
>>>> <https://maps.google.com/?q=Ciudad+Universitaria,+Plaza+Ciencias,+1+28040+Madrid.+Spain&entry=gmail&source=g>
>>>> 28040 Madrid. Spain
>>>> <https://maps.google.com/?q=Ciudad+Universitaria,+Plaza+Ciencias,+1+28040+Madrid.+Spain&entry=gmail&source=g>
>>>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>>>
>>>> <ETH_lara.ncl>
>>>>
>>>>
>>>>
>>>> Guido Cioni
>>>> http://guidocioni.altervista.org
>>>>
>>>>
>>>>
>>>> Guido Cioni
>>>> http://guidocioni.altervista.org
>>>>
>>>>
>>>
>>>
>>> --
>>>
>>>
>>> *Lara Quitián Hernández, PhD Student*
>>> Departamento de Física de la Tierra, Astronomía y Astrofísica
>>> Facultad de Ciencias Físicas
>>> Ciudad Universitaria, Plaza Ciencias, 1
>>> 28040 Madrid. Spain
>>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>>
>>>
>>
>>
>> --
>>
>>
>> *Lara Quitián Hernández, PhD Student*
>> Departamento de Física de la Tierra, Astronomía y Astrofísica
>> Facultad de Ciencias Físicas
>> Ciudad Universitaria, Plaza Ciencias, 1
>> 28040 Madrid. Spain
>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20180601/3899435d/attachment.html>
More information about the ncl-talk
mailing list