[ncl-talk] fatal:Variable (lbar_zone) is undefined

[Adam Phillips]

Hi Ismail,
It does look like there is a bug in the gsn_csm_streamline* suite of
functions. The issue is triggered if the user sets lbLabelBarOn = False and
mpProjection
to something other than cylindrical equidistant. The (partial) solution is
to change line 12329 (and 12122) of gsn_csm.ncl from this:
if(luse_old_lbar)
to this:
if(lbar_on.and.use_old_lbar)

This results in the labelbar not being drawn, but unfortunately there might
be a double set of tickmarks on each map as well. I was able to remove the
2nd set of tickmarks by setting
pmTickMarkDisplayMode = "Conditional".

I will report this as a bug.
Adam



On Mon, Oct 9, 2017 at 11:56 AM, Ismail SEZEN <sezenismail at gmail.com> wrote:

> Dear Adam, thank you for your kind respond.
>
> Let me clarify a thing. I already solved my all problems in one way or
> another, used NCL (thanks to all team members) and now I’m done with it.
> I’m not in a hurry for a rush. I’m using NCL only for 2 weeks and I tought
> that I found a bug and wanted to report it and give a hand to community.
> This is *ONLY* the reason why I’m here. (To help USA users, non-USA users,
> even to Dennis)
>
> > On 9 Oct 2017, at 19:34, Adam Phillips <asphilli at ucar.edu> wrote:
> >
> > Hello,
> > Please note that on the NCL email list support page (
> http://www.ncl.ucar.edu/Support/email_lists.shtml) it states:
> > "The NCL/NCARG team monitors all mailing lists, and we generally try to
> answer questions within a few hours when posted during normal working hours
> (Mon-Fri 8am-5pm MT)."
> > As your original email was posted on Saturday it is quite unlikely that
> it will be responded to until Monday. There are occasional exceptions to
> this, depending on the schedules of NCL support staff as well as volunteers
> who are willing to respond.
>
> I've been working very hard (night and day) for the past week and I didn’t
> know what the day is weekend or weekday, I even didn’t know the what time
> was :). That’s why, please, don’t take personal the insistent second email.
> I’ve been in e-mail lists for years and I know how things work except
> sending bug report. Usually, there is a project tracking page and bugs are
> reported over there. That’s why I was not sure if this list is monitored by
> the team or not.
>
> >
> > To answer your query, I've copied stream_11.ncl from the examples
> website here:
> > http://www.ncl.ucar.edu/Applications/stream.shtml#ex11
> >
> > and modified it to use the uvt.nc file available here:
> > http://www.ncl.ucar.edu/Applications/Data/
> >
> > and attached it and the resulting graphic here.
> >
> > Note that to turn off the individual labelbar you need to set
> lbLabelBarOn = False. To turn on a single labelbar for the panel plot you
> need to set gsnPanelLabelBar to True in your panel resource list. Finally,
> to orient the labelbar vertically you need to set lbOrientation =
> "vertical" in your panel resource list.
>
> The instructions above are exactly what I did.
>
> >
> > See the following websites:
> > http://www.ncl.ucar.edu/Applications/panel.shtml
> > http://www.ncl.ucar.edu/Applications/labelbar.shtml
> > available from the main applications page here:
> > http://www.ncl.ucar.edu/Applications/
>
> I already surf the websites. Thanks.
>
> >
> > Also, note that the resource gsnOldLabelBar does not exist, and that
> lbLabelsOn will turn off the labelbar labels (when set in the panel
> resource list in the attached example).
>
> This is not exaclty happening in my situation. But I got the error below.
> That’s why I dig the gsn_csm.ncl file through the error.
>
> >
> > Hopefully that all makes sense. If not, or if you have further
> questions, please only respond to the ncl-talk email list and not to me
> personally.
> > Adam
>
> Let me modify your example (thanks again). Please see the attached ncl
> file.
> Also required nc file can be downloaded here https://www.dropbox.com/s/
> cqu0lr3jautr0u1/wrfout_d02_2015-09-06_00_00_00?dl=0
> NC file is big, likely a wrf output file that you have will also work. Not
> sure.
>
> Thanks.
>
> ERROR:
>  Copyright (C) 1995-2017 - All Rights Reserved
>  University Corporation for Atmospheric Research
>  NCAR Command Language Version 6.4.0
>  The use of this software is governed by a License Agreement.
>  See http://www.ncl.ucar.edu/ for more details.
> fatal:Variable (lbar_zone) is undefined
> fatal:["Execute.c":8640]:Execute: Error occurred at or near line 12331 in
> file /Users/isezen/ncl_ncarg-6.4.0-MacOS_10.11_64bit_nodap_
> gnu540/lib/ncarg/nclscripts/csm/gsn_csm.ncl
>
> fatal:["Execute.c":8640]:Execute: Error occurred at or near line 12396 in
> file /Users/isezen/ncl_ncarg-6.4.0-MacOS_10.11_64bit_nodap_
> gnu540/lib/ncarg/nclscripts/csm/gsn_csm.ncl
>
> fatal:["Execute.c":8640]:Execute: Error occurred at or near line 58 in
> file stream_11_2.ncl
>
>


-- 
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>
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