[ncl-talk] problem labelling longitudes with increment <1deg

[Mary Haley]

Hi David,

Thanks for providing a script and data file.

The problem is that we have an internal function called "add_map_tickmarks"
and this one is conflicting with that one.

I suggest renaming the one in the tst1.ncl script to something else, like
"add_map_tickmarks2".  I have updated the mptick_9.ncl example to have a
different name for this function.

However, since you are dealing with a simple lat/lon projection, you don't
need your own copy of this routine. You should simply be able to set
tmXBValues/Labels and tmYLValues/Labels to the desired values.

See the attached modified script. I was unable to run the original script
because of some coding errors, so I had to fix these. For example, it had
the contour level spacing set to 0.0, which is invalid.

I didn't attempt to convert the degrees to minutes, so I just left them as
fractional values on the X and Y axis.

--Mary


On Mon, Jul 18, 2016 at 2:51 PM, Vollaro, David <dvollaro at albany.edu> wrote:

> Hi,
>
>
> I am trying to plot a contour map for a small area and am trying to get
> the Longitude labels to plot every tenth deg.  Setting
> res at gsnMajorLonSpacing    <1 results in an error.  Looking into the talk
> archives, I noticed a workaround using add_map_tickmarks.  This seems to
> work for the test version when I change the map area and lon labels to what
> I want.  However, when I try to incorperate it into a program that uses
> contour mapping(ie  gsn_csm_contour_map) I get the following errors,
> before it even reaches the add_map_tickmarks function:
>
>
>
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 5930 in
> file /man2/ncl63/lib/ncarg/nclscripts/csm/gsn_csm.ncl
>
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 7107 in
> file /man2/ncl63/lib/ncarg/nclscripts/csm/gsn_csm.ncl
>
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 10599 in
> file /man2/ncl63/lib/ncarg/nclscripts/csm/gsn_csm.ncl
>
> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 343 in
> file tst1.ncl
>
> I am running ncl6.3.0 and am attaching the script.  Thanks for your help.
>
> Dave Vollaro
>
>
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