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[IDV #JHM-641809]: wind barbs and text point data

Hi David and Yuan,

For the record, I tried the trivial example of loading 2 data points and did 
not observe the problem. As soon, as I go beyond that (e.g. 10 points) I see 
the problem again.

I will continue sleuthing.

-Julien

> > Hi Yuan,
> > Hmmm. I tried cutting it down to 100, then I tried again with 40, and
> > still had the same problem.
> >
> > I created and attached the zipped bundle with only 40 points.
> >
> >
> > --Dave
> 
> Hi Dave,
> I need to use my office setting to debug this problem, it looks like a bug to 
> me. So, I will not be able to
> figure this one out till next week.
> 
> 
> 
> Yuan
> >
> >
> >
> > On 11/09/2010 04:19 PM, Unidata IDV Support wrote:
> > >> Glad you can confirm the problem.  No, I am not doing anything special
> > >> to display the wind barbs.  The wind barbs usually appear the first time
> > >> I try to display them after starting IDV.    If I try to display again,
> > >> they all turn to calm.
> > >>
> > >> Don't know if this is related, but even when the wind barbs are
> > >> displayed, it's only a small fraction of the total number that should be
> > >> displayed.   They should almost all have wind barbs.
> > >>
> > >> --Dave
> > >>
> > > Hi Dave,
> > >         I would like you to do one test for me, not sure how many point 
> > > is the current csv file, could you cut the number down to something like 
> > > 100 points and try again. I have the feeling this is somehow related to 
> > > the size of the point data too big.
> > >
> > >
> > > Yuan
> > >>> Dave,
> > >>>
> > >>> Thanks for the bundle. I can confirm the problems you see.
> > >>>
> > >>> Out of curiosity are you doing anything "special" to display the wind 
> > >>> barbs? When I display the wind barbs directly from the csv file, I only 
> > >>> see circles (no wind barbs).
> > >>>
> > >>> -Julien
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>> Yes, I'd be happy to.  Here's a bundle.   To reproduce the problem,
> > >>>> create a Point Data Plot and change the layout from Location to
> > >>>> something with wind barbs (e.g. Winds).  Initially, IDV displays a
> > >>>> couple wind barbs.  Then if you zoom in and zoom out again, all wind
> > >>>> barbs are gone.  All that is left are white circles (indicating calm
> > >>>> winds).
> > >>>>
> > >>>> -- Dave
> > >>>>
> > >>>>
> > >>>>
> > >>>> On 11/08/2010 01:11 PM, Unidata IDV Support wrote:
> > >>>>> Hi David,
> > >>>>>
> > >>>>> Would it be possible to send an IDV bundle that demonstrates this 
> > >>>>> problem?
> > >>>>>
> > >>>>> Thanks.
> > >>>>>
> > >>>>> -Julien
> > >>>>>
> > >>>>>> Full Name: David Ahijevych
> > >>>>>> Email Address: address@hidden
> > >>>>>> Organization: NCAR
> > >>>>>> Package Version: 2.9u2
> > >>>>>> Operating System: 32-bit linux
> > >>>>>> Hardware:
> > >>>>>> Description of problem: I am trying to display wind barbs from text 
> > >>>>>> point data.  If I restart IDV it kind of works initially, but as 
> > >>>>>> soon as I zoom in or change the layout model, no matter what U and V 
> > >>>>>> are, IDV plots calm winds.  I attached a couple screen shots to 
> > >>>>>> illustrate: at first, wind barbs are plotted (see y.png), but after 
> > >>>>>> zooming in and out, they disappear (see n.png).
> > >>>>>>
> > >>>>>> Curiously, in the beginning, most stations should have wind barbs, 
> > >>>>>> but only 3 show up.
> > >>>>>>
> > >>>>>>
> > >>>>>>
> > >>>>> Ticket Details
> > >>>>> ===================
> > >>>>> Ticket ID: JHM-641809
> > >>>>> Department: Support IDV
> > >>>>> Priority: Normal
> > >>>>> Status: Open
> > >>>>>
> > >>>>
> > >>> Ticket Details
> > >>> ===================
> > >>> Ticket ID: JHM-641809
> > >>> Department: Support IDV
> > >>> Priority: Normal
> > >>> Status: Open
> > >>>
> > >>
> > >
> > > Ticket Details
> > > ===================
> > > Ticket ID: JHM-641809
> > > Department: Support IDV
> > > Priority: Normal
> > > Status: Open
> > >
> >
> >
> >
> 


Ticket Details
===================
Ticket ID: JHM-641809
Department: Support IDV
Priority: Normal
Status: Open