Re: Looking for cause of unmatched node messages from gsn_csm_contour_map

From: Craig Tierney - NOAA Affiliate <craig.tierney_at_nyahnyahspammersnyahnyah>
Date: Tue Jun 25 2013 - 15:49:05 MDT

Dave,

I will upload these shortly.

Craig

On Tue, Jun 25, 2013 at 3:37 PM, David Brown <dbrown@ucar.edu> wrote:

> Hi Craig,
> These are debugging messages that probably should not appear in the way
> they do to the user. The algorithm for hexagonal grids sorts the vertices
> (nodes) of all the cells and then matches them in groups of 3. This
> particular sample is interesting and suggests a problem with the algorithm
> because it looks like it should have found 2 sets of three nodes rather
> than claiming these nodes are "unmatched".
>
> I wonder if you can provide this data and your script. See
> http://www.ncl.ucar.edu/report_bug.shtml if you have questions about how
> to upload your files.
> I have been working on some upgrades that are somewhat related to this
> code and it would definitely be useful to recreate this scenario.
> Also I will try to ensure that the next release prints out more
> user-friendly warnings in this part of the code, if and when needed.
> -dave
>
>
> On Jun 25, 2013, at 2:42 PM, Craig Tierney - NOAA Affiliate <
> craig.tierney@noaa.gov> wrote:
>
> > I am plotting results from an icosahedral via NCL. The plots look
> correct as far as I can tell. However, I am getting messages like:
> >
> > unmatched node 631901 2 0.000187 -33.094330
> > unmatched node 631902 0 0.000187 -33.094330
> > unmatched node 631865 4 0.000187 -33.094330
> > unmatched node 529215 4 0.000582 53.780632
> > unmatched node 529253 0 0.000582 53.780632
> > unmatched node 529252 2 0.000582 53.780632
> >
> > These account for a very small percentage of the total points on my
> grid. What do these messages mean?
> >
> > Thanks,
> > Craig
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>

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Received on Tue Jun 25 15:49:16 2013

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