[ncl-talk] Multiple Issues

[David Brown]

Well your plot looks a lot better now.

If you are using climo_1.ncl as a template, then notice that there are two
contour plots drawn with one overlaid on the other. They use different
resource variables: res and res2. I think you need to set gsnAddCyclic to
False for both of these variables. In other words, add the line

res2 at gsnAddCyclic = False

in the appropriate location and hopefully the error messages will go away.
 -dave

On Thu, Nov 19, 2015 at 3:47 PM, Jinwoong Yoo <jinwoongyoo at unm.edu> wrote:

> Dear Dave,
>
>
> Inspired by your comment, "Perhaps an issue with a missing value not
> being recognized properly?", I cleared missing values in the input data
> (which was marked as "-nan").
>
> Then, I was able to remove the lines (see attached image).
>
> However, I am getting the warning messages still.
>
>
> (0) gsn_add_cyclic: Warning: The range of your longitude data is not 360.
> (0) You may want to set the gsnAddCyclic resource to False to avoid a
> (0) warning message from the spline function.
> warning:_NhlCreateSplineCoordApprox: Attempt to create spline
> approximation for X axis failed: consider adjusting trXTensionF value
> warning:IrTransInitialize: error creating spline approximation for
> trXCoordPoints; defaulting to linear
>
>
> Thank you very much.
>
>
> Regards,
>
>
> Jinwoong
>
>
> ------------------------------
> *From:* David Brown <dbrown at ucar.edu>
> *Sent:* Thursday, November 19, 2015 3:13 PM
> *To:* Jinwoong Yoo
> *Cc:* Alan Brammer; ncl-talk at ucar.edu
>
> *Subject:* Re: [ncl-talk] Multiple Issues
>
> The unwanted lines in your plot all seem to be pointing towards a single
> point. Perhaps an issue with a missing value not being recognized properly?
> It might help us diagnose the problem if you printed out summaries of the
> lat, lon, and data variables.
>  -dave
>
>
> On Thu, Nov 19, 2015 at 1:35 PM, Jinwoong Yoo <jinwoongyoo at unm.edu> wrote:
>
>> Thank you, Alan, for your comment.
>>
>>
>> Regards,
>>
>>
>> Jinwoong
>>
>>
>> ------------------------------
>> *From:* Alan Brammer <abrammer at albany.edu>
>> *Sent:* Thursday, November 19, 2015 1:29 PM
>> *To:* Jinwoong Yoo
>> *Cc:* ncl-talk at ucar.edu
>> *Subject:* Re: [ncl-talk] Multiple Issues
>>
>> Have you tried doing what the error suggests?
>>
>> (0) You may want to set the gsnAddCyclic resource to False to avoid a
>> (0) warning message from the spline function.
>>
>>
>> if your plotting resources are in a variable name res
>>
>> res at gsnAddCyclic  = False
>>
>>
>> Alan.
>>
>>
>>
>>
>> On 19 Nov 2015, at 15:15, Jinwoong Yoo <jinwoongyoo at unm.edu> wrote:
>>
>> Dear NCL users,
>>
>> I am trying to plot an image following an example at
>> https://www.ncl.ucar.edu/Applications/Images/climo_1_lg.png.
>> <https://www.ncl.ucar.edu/Applications/Images/climo_1_lg.png>
>>
>> but I'm getting a few warnings and my result plot is not pretty enough
>> (attached).
>>
>> Warning messages are as below:
>>
>> (0) gsn_add_cyclic: Warning: The range of your longitude data is not 360.
>> (0) You may want to set the gsnAddCyclic resource to False to avoid a
>> (0) warning message from the spline function.
>> warning:_NhlCreateSplineCoordApprox: Attempt to create spline
>> approximation for X axis failed: consider adjusting trXTensionF value
>> warning:IrTransInitialize: error creating spline approximation for
>> trXCoordPoints; defaulting to linear
>>
>>
>>
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