[ncl-talk] NCARG_COLORMAPS in conda

[Jian Zheng]

Hi Rick,

I find that defining NCARG_COLORMAPS after the conda-initializing part in
the .bash_profile can solve the problem.

Thanks a lot for all your help.
Jian

On Sat, Nov 21, 2020 at 12:22 AM Rick Brownrigg <brownrig at ucar.edu> wrote:

> Hi Jian,
>
> When you say it is not working, are you getting messages such as this when
> you try to reference your custom colormap:
>
> fatal:CvtStringToCmap:Unable to convert string "foo" to ColorMap
> warning:Error retrieving resource wkColorMap from args - Ignoring Arg
>
> I don't know where the OLD_NCARG_COLORMAPS setting would be coming from in
> your environment. I would note that the second path in it --
> /lib/ncarg/colormaps -- would be incorrect. I don't know that it would
> break things if the first path is correct however.
>
> I have a stock ncl installation from conda. I copied an arbitrary colormap
> from $NCARG_ROOT/lib/colormaps into /tmp, renamed it "foo.rgb", and set
> NCARG_COLORMAPS=/tmp. Then when I run this little script, everything works:
>
> ncl 1>   wks = gsn_open_wks("x11","test")
> ncl 2>   gsn_define_colormap(wks,"foo")
> ncl 3> gsn_draw_colormap(wks)
>
> if I unset NCARG_COLORMAPS, and re-run, then I get the fatal/warning
> errors mentioned above.
>
> So I would have to conclude something is not quite right in your
> environment. Perhaps before trying to set envvars via .bash_profile,
> perhaps try setting them on the command line. Are you certain your colormap
> is in the directory you cite? Are you certain its format is valid for NCL?
> Perhaps try what I did -- copying a known colormap into your custom
> directory, rename it to something that does not collide with NCL's colormap
> names, and see if you  can get the little scriptlet above to work.
>
> I hope that helps...
> Rick
>
>
> On Fri, Nov 20, 2020 at 8:54 AM Jian Zheng <jzheng8606 at gmail.com> wrote:
>
>> Hi Rick,
>>
>> When I ran "env | grep NCARG", I got
>>
>>
>> OLD_NCARG_COLORMAPS=/Users/jzheng/Documents/nclcolormap:/lib/ncarg/colormaps
>>
>> NCARG_ROOT=/Users/jzheng/opt/miniconda3
>>
>>
>> Does it show you more information?
>>
>>
>> On Fri, Nov 20, 2020 at 12:49 PM Rick Brownrigg <brownrig at ucar.edu>
>> wrote:
>>
>>> Hi Jian,
>>>
>>> Offhand that all looks reasonable. Only you can verify the custom path.
>>> Did you "source" your .bash_profile after you modified it?  I'm not sure
>>> what else to suggest.
>>>
>>> Rick
>>>
>>> On Thu, Nov 19, 2020 at 9:34 PM Jian Zheng <jzheng8606 at gmail.com> wrote:
>>>
>>>> Hi Rick,
>>>>
>>>> NCARG_COLORMAPS (export
>>>> NCARG_COLORMAPS=/Users/jzheng/Documents/nclcolormap:$NCARG_ROOT/lib/ncarg/colormaps)
>>>> contains the directory where I put my user-defined colormap files. When I
>>>> run ncl, it doesn't see these colormaps.
>>>>
>>>> Thanks,
>>>> Jian
>>>>
>>>> On Thu, Nov 19, 2020 at 9:33 PM Rick Brownrigg <brownrig at ucar.edu>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> What do you mean "it does not work"?  What happens?  Normally one
>>>>> should not need to set that environment variable unless there's something
>>>>> unusual about the way the code is installed.  It is common however to set
>>>>> NCARG_ROOT, and that should point to the directory containing the NCL
>>>>> installation; i.e., the directory with the bin/ lib/ include/ and man/
>>>>> directories belonging to NCL.  I don't recall offhand where a stock conda
>>>>> install places those directories.
>>>>>
>>>>> Rick
>>>>>
>>>>>
>>>>> On Thu, Nov 19, 2020 at 1:47 AM Jian Zheng via ncl-talk <
>>>>> ncl-talk at mailman.ucar.edu> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I installed ncl6.6.2 in conda root environment. When I set NCARG_COLORMAPS
>>>>>> in my ~/.bash_profile file, it did not work. How should I set NCARG_COLORMAPS
>>>>>> with conda correctly?
>>>>>>
>>>>>> Thanks,
>>>>>> Jian
>>>>>> _______________________________________________
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>>>>>
>>>>>
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