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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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Thanks Sean. Works like a charm! Here is a working example in RAMADDA - https://geodesystems.com/repository/entry/show?entryid=239dea1a-fddd-4d8e-8741-64c409c7ea4e [image: image.png] -Jeff On Thu, Jul 15, 2021 at 7:47 AM Sean Arms <sarms@xxxxxxxx> wrote: > Greetings Jeff! > > The minimum you will need to do is use NcML to identify the different > coordinate axes using the _CoordinateAxisType attribute, like so: > > <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2"; > location="T28_CAPE1991_557.nc"> > <variable name="LATITUDE_DECIMAL_DEG_20Hz"> > <attribute name="_CoordinateAxisType" value="Lat" /> > </variable> > <variable name="LONGITUDE_DECIMAL_DEG_20Hz"> > <attribute name="_CoordinateAxisType" value="Lon" /> > </variable> > <variable name="GPS_ALTITUDE"> > <attribute name="_CoordinateAxisType" value="Height" /> > </variable> > <variable name="Time"> > <attribute name="_CoordinateAxisType" value="Time" /> > </variable> > </netcdf> > > Using this NcML, I was able to get toolsUI to recognize the file as a > trajectory dataset. There is a Nimbus coordinate system builder, but it is > looking for different variable names to annotate with the axis type > attributes (otherwise, this would work out of the box). > > Cheers! > > Sean > > > On Thu, Jul 15, 2021 at 6:51 AM Jeff McWhirter <jeff.mcwhirter@xxxxxxxxx> > wrote: > >> Hi Unidata folks, >> I have a netcdf file that is supposed to be aircraft track data. The CDL >> can be viewed here- >> >> https://geodesystems.com/repository/entry/show/Home/RAMADDA+/Development/Test+Import/T28+Cape1991+557?entryid=58e52051-1415-4aaf-a5f8-9dda8572f9f1&output=data.cdl >> >> And the file can be downloaded here: >> >> https://geodesystems.com/repository/entry/show?entryid=58e52051-1415-4aaf-a5f8-9dda8572f9f1 >> >> I am unable to open it as a trajectory or as a point using the >> ucar.nc2.ft.FeatureDatasetPoint class. >> >> Any ideas? Maybe an NCML trick? It is data from the South Dakota School >> of Mines T28 plane that EOL converted. >> >> Thanks >> Jeff >> >> >> _______________________________________________ >> NOTE: All exchanges posted to Unidata maintained email lists are >> recorded in the Unidata inquiry tracking system and made publicly >> available through the web. Users who post to any of the lists we >> maintain are reminded to remove any personal information that they >> do not want to be made public. >> >> >> netcdf-java mailing list >> netcdf-java@xxxxxxxxxxxxxxxx >> For list information or to unsubscribe, visit: >> https://www.unidata.ucar.edu/mailing_lists/ >> >
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