[IDV #RJF-252466]: Dislaying CEDRIC NetCDF

> So I have *.ncml files in different directories and the different fort.54 
> files also.  in the location part, which one should I list if I am doing both 
> modifying and aggregating functions?  Sorry, I have been reading all the 
> tutorials but the examples are too simple.
> 
> Daniel

It maybe a little too complicated for you to do the both modifying and 
aggregating in one ncml file, I think you can start with two different ncml 
files, in the aggregate one, the location file should point to the first ncml 
file which modifying the nc file.


Yuan
> ________________________________________
> From: Unidata IDV Support [address@hidden]
> Sent: Thursday, September 25, 2008 11:05 AM
> To: Betten, Daniel P.
> Cc: address@hidden
> Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> 
> > I got the scale factor correction done.  Each file is a has a different 
> > time stamp.  I have tried loading multiple files into one display but it 
> > doesn't seem to recognize that there are multiple times.  Thank you so much 
> > for you help, what we are able to see might be the first time dual doppler 
> > analysis have been viewed this way.
> 
> Ok, I see what you want here. You need to use ncml again to aggregate these 
> files in the time dimension, here is a example:
> 
> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
> <aggregation dimName="time" type="joinExisting">
> <netcdf location="file:/test/temperature/jan.nc" ncoords="31"/>
> <netcdf location="file:/test/temperature/feb.nc" ncoords="28"/>
> </aggregation>
> </netcdf>
> 
> So, you can either using one ncml file to aggregate two ncml modified files, 
> or you can put them together with one ncml file to do both modifying and 
> aggregating funcitons. You can reference the ncml web page for more details 
> information.
> 
> 
> Yuan
> >
> > Daniel
> > ________________________________________
> > From: Unidata IDV Support [address@hidden]
> > Sent: Wednesday, September 24, 2008 5:45 PM
> > To: Betten, Daniel P.
> > Cc: address@hidden
> > Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> >
> > > So if the variable has a scale factor of 64 in the original netCDF file 
> > > and I would want the scale factor to >be  64 in the ncml file?
> >
> > yes, just enter the value you wanted.
> >
> > >Also, I want to make an animation of my different times which are in 
> > >files, is there a way to do that?  I have
> > I am not sure what you means here, I remember there is only one time step 
> > in the file, if there is multiple times in the time dimension, IDV should 
> > be able to pick it up and do the animation for you.
> >
> >
> > Yuan
> >
> > >already assigned different time values in the time variable for each file. 
> > > Thanks for your help.
> > >
> > > Daniel
> > > ________________________________________
> > > From: Unidata IDV Support [address@hidden]
> > > Sent: Wednesday, September 24, 2008 4:50 PM
> > > To: Betten, Daniel P.
> > > Cc: address@hidden
> > > Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> > >
> > > > Yuan,
> > > >
> > > > I figured out my last problem about not seeing the 3D image.  But I 
> > > > have another problem.  Some of my variables are scaled by 64 instead of 
> > > > 100, so they are half what they should be, is there a way to multiply 
> > > > the values in IDV?  Do I need to do it using the ncml file?
> > > >
> > > Yes, you can do it in the ncml file, I don't know which variable you want 
> > > to modify, if this variable named T, you can
> > >
> > > <variable name="T">
> > > <attribute name="scale_factor" type="float" value="100.0f" />
> > > </variable>
> > >
> > > what it does is to modify the attribute named scale_factor to a different 
> > > value, and keep all others the same as originals.
> > >
> > >
> > > Yuan
> > >
> > >
> > > > Daniel Betten
> > > > ________________________________________
> > > > From: Unidata IDV Support [address@hidden]
> > > > Sent: Monday, September 22, 2008 2:59 PM
> > > > To: Betten, Daniel P.
> > > > Cc: address@hidden
> > > > Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> > > >
> > > > > Yuan,
> > > > >
> > > > > I apologize, I forgot to set permissions on my page, so you couldn't 
> > > > > see it.   It should work now.  If there are any other problems let me 
> > > > > know.
> > > > >
> > > > > Daniel
> > > > Daniel,
> > > > I got it.
> > > > The problem of this netCDF file is that the coordinate system is not CF 
> > > > compliant, so, IDV can not recognize this file as a Grid datatype, the 
> > > > simple way to work with this kind of problem is using Unidata NCML (" 
> > > > http://www.unidata.ucar.edu/software/netcdf/ncml/";) to modify this file 
> > > > to a better shape, attached is a sample I created for your reference, 
> > > > it is not complete, and some parameter is randomly selected, you can 
> > > > modify it to your requirement. Simply put this ncml file with your 
> > > > fort.54 file in a same directory, and the running IDV to view it.
> > > >
> > > >
> > > > Yuan
> > > > > ________________________________________
> > > > > From: Unidata IDV Support [address@hidden]
> > > > > Sent: Monday, September 22, 2008 11:47 AM
> > > > > To: Betten, Daniel P.
> > > > > Cc: address@hidden
> > > > > Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> > > > >
> > > > > > Dear Don,
> > > > > >
> > > > > > If you go to http://smartr.metr.ou.edu/~dbetten/  download the file 
> > > > > > fort.54.   Thank you for your help.
> > > > >
> > > > > Daniel,
> > > > > You web site is not accessible. Please check with the system adm to 
> > > > > make it accessible from outside.
> > > > >
> > > > >
> > > > > Yuan
> > > > > >
> > > > > > Daniel
> > > > > > ________________________________________
> > > > > > From: Unidata IDV Support [address@hidden]
> > > > > > Sent: Friday, September 19, 2008 2:55 PM
> > > > > > To: Betten, Daniel P.
> > > > > > Cc: address@hidden
> > > > > > Subject: [IDV #RJF-252466]: Dislaying CEDRIC NetCDF
> > > > > >
> > > > > > Hi Daniel-
> > > > > >
> > > > > > > I am trying to display dual-doppler analysis output data, which 
> > > > > > > should be gridded files, that come out as a type of NetCDF.  I 
> > > > > > > have tried the different types of netCDF options in IDV, I am 
> > > > > > > running version 2.5, but none of them work.  Have you heard of 
> > > > > > > anyone trying to display CEDRIC files in IDV?   The only thing we 
> > > > > > > can think of is to convert our NetCDF into a different format 
> > > > > > > that will be readable to IDV.  Any help would be much appreciated.
> > > > > >
> > > > > > Can you send a sample file or put it on a web/ftp site if it's too
> > > > > > big?  That way we can look at the structure and see what needs to
> > > > > > be changed.
> > > > > >
> > > > > > Thanks.
> > > > > >
> > > > > > Don Murray
> > > > > >
> > > > > > Ticket Details
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> > > > > >
> > > > >
> > > > >
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> 
> Ticket Details
> ===================
> Ticket ID: RJF-252466
> Department: Support IDV
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> 


Ticket Details
===================
Ticket ID: RJF-252466
Department: Support IDV
Priority: Normal
Status: Open