This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Louise, You are very welcome. I am glad it worked. Best, Unidata IDV Support > That works. Thanks for getting back to me so quickly. > > Louise > > -----Original Message----- > From: Unidata IDV Support [mailto:address@hidden] > Sent: Monday, February 29, 2016 6:31 PM > To: Louise Avila, Contractor, Code 5774 > Cc: address@hidden > Subject: [IDV #HJI-297923]: Loading CF/Radial Convention files in IDV > > Louise, > > Try selecting a "Data Source Type" of "Radar files (NEXRAD/DORADE/UF)", in > the IDV Dashboard, Data Choosers Tab. > > Let us know how it goes. > > Best, > > Unidata IDV Support > > > > Hi, > > > > I downloaded IDV 5.2 and I am trying to display the example CF/Radial > > dataset from : > > > > http://www.ral.ucar.edu/projects/titan/docs/radial_formats/index.html > > > > I've tried the classic version of the file in the Netcdf 4.6 Tools > > (toolsUI-4.6.4), and the radial data is imported correctly. > > > > I've tried opening both the netCDF class and netCDF 4 versions of the > > datasets, but hen I try to open the data source, it recognizes it as a > > netCDF Radar Sweep file, but when I click "Add Source," I get the following > > error: > > > > java.lang.NullPointerException > > at > > ucar.unidata.data.radar.NetcdfSweepfileAdapter.loadData(NetcdfSweepfil > > eAdapter.java:338) at > > ucar.unidata.data.radar.NetcdfSweepfileAdapter.init(NetcdfSweepfileAda > > pter.java:144) at > > ucar.unidata.data.radar.NetcdfSweepfileAdapter.<init>(NetcdfSweepfileA > > dapter.java:130) at > > ucar.unidata.data.radar.NetcdfRadarDataSource.makeRadarAdapter(NetcdfR > > adarDataSource.java:132) at > > ucar.unidata.data.radar.RadarDataSource$1.run(RadarDataSource.java:298 > > ) at visad.util.ThreadManager.runInParallel(ThreadManager.java:273) > > at visad.util.ThreadManager.runInParallel(ThreadManager.java:245) > > at visad.util.ThreadManager.runInParallel(ThreadManager.java:212) > > at > > ucar.unidata.data.radar.RadarDataSource.makeAdapters(RadarDataSource.j > > ava:320) at > > ucar.unidata.data.radar.RadarDataSource.getAdapters(RadarDataSource.ja > > va:252) at > > ucar.unidata.data.radar.RadarDataSource.getRadarAdapters(RadarDataSour > > ce.java:637) at > > ucar.unidata.data.radar.NetcdfRadarDataSource.doMakeDataChoices(Netcdf > > RadarDataSource.java:107) at > > ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:18 > > 55) at > > ucar.unidata.data.DataManager.createDataSource(DataManager.java:1573) > > at > > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataV > > iewer.java:1979) at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataVie > > wer.java:1896) at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataVie > > wer.java:1830) at > > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataVie > > wer.java:1803) at > > ucar.unidata.idv.chooser.IdvChooser.makeDataSource(IdvChooser.java:943 > > ) at > > ucar.unidata.idv.chooser.FileChooser.selectFilesInner(FileChooser.java > > :656) at > > ucar.unidata.idv.chooser.FileChooser.selectFiles(FileChooser.java:525) > > at > > ucar.unidata.idv.chooser.FileChooser.doLoadInThread(FileChooser.java:5 > > 47) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at > > sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at > > sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at > > java.lang.reflect.Method.invoke(Unknown Source) at > > ucar.unidata.util.Misc$2.run(Misc.java:1215) > > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > > > I have been exporting my own data to files according to the CF/Radial > > convention and I get the same error when I try to load those files. The web > > page on Radial data: > > > > http://www.unidata.ucar.edu/software/thredds/current/netcdf-java/tutor > > ial/RadialDatatype.html > > > > suggests that IDV can read data in the same format. I am also creating my > > own reader and I can successfully import it as a RadialDatasetSweep as > > shown in the code on the same page. > > > > I would appreciate any suggestions for being able to visualize my data. > > > > Thanks. > > > > > > > > > > > > > > > Ticket Details > =================== > Ticket ID: HJI-297923 > Department: Support IDV > Priority: Normal > Status: Closed > > Ticket Details =================== Ticket ID: HJI-297923 Department: Support IDV Priority: Normal Status: Closed