[ncl-talk] Bug in ncl

[Adam Phillips]

Hi Mathieu,
Setting:
res at cnFillMode = "RasterFill"
res at cnRasterSmoothingOn = True
will result in the exact same output plot as setting:
res at cnFillMode = "AreaFill"
and is a way around your issue. Give it a try.

With regards to your 2nd question, these pages may be of assistance:
http://www.ncl.ucar.edu/Applications/geodesic.shtml
http://www.ncl.ucar.edu/Applications/mpas.shtml

For the latter link see examples mpas_cell_3 and mpas_cell_4.ncl
If you have any further questions please respond to ncl-talk.
Adam


On Thu, Oct 22, 2015 at 2:19 AM, Mathieu Dutour <mathieu.dutour at gmail.com>
wrote:

> Yes, I know that RasterFill works, but that is not the issue. The issue is
> that AreaFill
> does not work.
>
> By the way, is there a way to make drawing on nodes? Here with RasterFill
> and
> unstructured mesh, we get some hexagons with vertices on the center of the
> triangles. Could it be possible to get a drawing with vertices on the
> vertices of the
> triangulation? This would be more direct and helpful in some contexts.
>
>   Mathieu
>
> On Wed, Oct 21, 2015 at 10:35 PM, Adam Phillips <asphilli at ucar.edu> wrote:
>
>> Hi Mathieu,
>> Thank you for sending in a short script showing the error. I can
>> reproduce your results using v6.3.0.
>>
>> The instances of the ARSCAM/ARPRAM error have been dramatically reduced,
>> but not 100% eliminated, since v5.2.1. See the FAQ here:
>> http://www.ncl.ucar.edu/FAQ/#err_msgs_015
>>
>> I was able to get your Bug.ncl script to work by setting cnFillMode =
>> "RasterFill" and replacing res at cnSmoothingOn = True with
>> res at cnRasterSmoothingOn = True.
>>
>> If you still get an error after making the suggested resource changes let
>> ncl-talk know.
>> Adam
>>
>>
>> On Wed, Oct 21, 2015 at 2:43 AM, Mathieu Dutour <mathieu.dutour at gmail.com
>> > wrote:
>>
>>> This bug happens in ncl-6.3.0 but also in previous versions.
>>>
>>> The problem happens when running with
>>> cnFillMode = "AreaFill"
>>>
>>> But curiously, the bug is triggered by an apparently unrelated option
>>> on label bar:
>>> res2 at pmLabelBarOrthogonalPosF = 0.025
>>>
>>> The error is:
>>> fatal:ContourPlotPreDraw: ARSCAM/ARPRAM - ALGORITHM FAILURE
>>> fatal:ContourPlotDraw: draw error
>>> fatal:PlotManagerPreDraw: error in plot pre-draw
>>> fatal:_NhlPlotManagerDraw: PreDraw error
>>>
>>> Any help in resolving this problem would be much appreciated.
>>>
>>>   Mathieu
>>>
>>> _______________________________________________
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>>>
>>
>>
>> --
>> 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>
>>
>
>


-- 
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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