[ncl-talk] Plotting unstructured mesh

[David Brown]

Hi Mathieu,
I am interested in your comment that "the speed is still not
absolutely excellent at 2.8s". What kind of performance do you think
would be "excellent"? Are there other tools that achieve the
performance you want? We are interested in any actual comparisons you
want to give us. And of course we are always seeking to improve the
performance of NCL as long as it does not compromise accuracy, which
is our over-arching goal.
 -dave

On Thu, Dec 11, 2014 at 7:21 AM, Mathieu Dutour
<mathieu.dutour at gmail.com> wrote:
> Dear Mary,
>
> thank you very much! Yes with "RasterFill" it works correctly.
> I used version 6.2.1.
>
> However the speed is still not absolutely excellent at 2.8s for a
> plot. Is there a list of standard practice to make plots faster?
>
>   Mathieu
>
> On Thu, Dec 11, 2014 at 7:13 AM, Mary Haley <haley at ucar.edu> wrote:
>>
>> Mathieu,
>>
>> What version of NCL are you running?
>>
>> ncl -V
>>
>> I was able to run your script just fine, but I changed cnFillMode from
>> "AreaFill" to "RasterFill". See attached png.
>>
>> --Mary
>>
>>
>> On Mon, Dec 8, 2014 at 8:17 AM, Mathieu Dutour <mathieu.dutour at gmail.com>
>> wrote:
>>>
>>> Dear ncl users,
>>>
>>> I have some errors for some contour plots on unstructured
>>> grids (the script is in attachment and the relevant netcdf file
>>> is available from
>>> http://mathieudutour.altervista.org/Sending/test.nc   )
>>>
>>> Below is exact error:
>>> fatal:ContourPlotPreDraw: ARSCAM/ARPRAM - ALGORITHM FAILURE
>>> fatal:ContourPlotDraw: draw error
>>> fatal:PlotManagerPreDraw: error in plot pre-draw
>>> fatal:_NhlPlotManagerDraw: PreDraw error
>>>
>>> I believe that the data is too irregular for the algorithm to plot it.
>>> But is there any way to alleviate this problem?
>>>
>>> Secondly, the plots sometime takes extremely long time to be done.
>>> The mesh has only 110804 nodes which is nowhere near big. What
>>> would be possible to avoid that problem?
>>>
>>>   Mathieu
>>>
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>>
>
>
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