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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Dear Jessica, I was able to successfully view these data in the IDV, but first I had to clean up the header lines. I removed extraneous quotes, and also gave an accurate description of the time field. (index -> (Time,Latitude,Longitude,Altitude,magnitude,strike,dip,rake,comment(Text),Mo(Text))) Time[fmt="MM/dd/yyyy HH:mm"],Latitude[unit="deg"],Longitude[unit="degrees west"],Altitude[unit="km"],magnitude[unit="null"],strike[unit="null"],dip[unit="null"],rake[unit="null"],comment(Text),Mo(Text) Please keep us up-to-date on your progress. Best Wishes, Unidata IDV Support > Full Name: Jessica Szkody > Email Address: address@hidden > Organization: Western Michigan University > Package Version: 4.0u1 build date:2013-03-29 18:10 UTC > Operating System: Windows 7 > Hardware: Java: home: C:\Program Files\IDV_4.0u1\jre version: 1.6.0_43 > j3d:1.5.2 fcs (build4) > Description of problem: > > I'm trying to plot focal mechanisms that I have generated. I have > succesfully plotted the focal mechanism sample data from USGS that was > provided on the website. I copied and pasted my data into the worksheet > as to not screw up the first two header lines. It still will not load. I'm > not sure what I'm doing incorrectly, but I get the following error: > > There was an error loading the data: > java.lang.NullPointerException > > I have attached the csv file that I have been trying to import. > > Thank you for your help! > > Jessica Szkody > > ****************** > Stack trace: > java.lang.NullPointerException > at visad.Tuple.buildTupleType(Tuple.java:170) > at > ucar.unidata.data.point.TextPointDataSource.makePointObs(TextPointDataSource.java:2106) > at > ucar.unidata.data.point.TextPointDataSource.makeObs(TextPointDataSource.java:656) > at > ucar.unidata.data.point.TextPointDataSource.makeObs(TextPointDataSource.java:479) > at > ucar.unidata.data.point.TextPointDataSource.getSample(TextPointDataSource.java:2520) > at > ucar.unidata.data.point.PointDataSource.doMakeDataChoices(PointDataSource.java:960) > at > ucar.unidata.data.point.TextPointDataSource.doMakeDataChoices(TextPointDataSource.java:2528) > at ucar.unidata.data.DataSourceImpl.getDataChoices(DataSourceImpl.java:1852) > at ucar.unidata.data.DataManager.createDataSource(DataManager.java:1599) > at > ucar.unidata.idv.IntegratedDataViewer.createDataSource(IntegratedDataViewer.java:1980) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1897) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1831) > at > ucar.unidata.idv.IntegratedDataViewer.makeDataSource(IntegratedDataViewer.java:1804) > 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:547) > 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:1221) > at ucar.unidata.util.Misc$3.run(Misc.java:1249) > > > Ticket Details =================== Ticket ID: VBR-726452 Department: Support IDV Priority: Normal Status: Closed