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Hi Heiko, At first glace, I can't figure out which CF specification you were trying to adhere to: H.4.1, H.4.2, H.4.3, or H.4.4. It appears you may have tried to adopt H.4.2 to use multiple trajectories, which I'm not sure is supported in NetCDF-Java. Take a look at these Trajectory examples: https://github.com/asascience-open/CFPointConventions/tree/master/trajectory. Each folder contains a .cdl, .nc (that will load into NetCDF-Java), and an .ncml file. Hope that helps, Kyle On Thu, Aug 27, 2015 at 4:21 AM, Heiko Klein <Heiko.Klein@xxxxxx> wrote: > Hi, > > I'm trying to read trajectory data with netcdf-java. I've seen figures > of this with netcdf-java 2.2 at > > > https://www.unidata.ucar.edu/software/thredds/v4.3/netcdf-java/tutorial/PointDatatype.html > > but both netcdf-4.6 and CF-1.6 have a different layout for trajectory data. > > > > I've tried now to generate a netcdf/CF file following the guidelines at > > http://www.unidata.ucar.edu/software/thredds/current/netcdf-java/reference/FeatureDatasets/CFpointImplement.html > (see attached file). > > > ToolsUI gives me a 'CoordSys' with trajectory, time, lat, lon and > time,lat,lon have the expected axisTypes. Using FeatureScan, I get a > coverage of 'Swath(T,Y,X): trajectory', which looks ok, but I get also > an error message: > > --------- > /home/heikok/openoil2.nc4 > NetCDF-4 > map = 'f:D(2)->R(4)' > > null > > CoverageFactory for '/home/heikok/openoil2.nc4' > coverage = Swath > FeatureDatasetFactoryManager errlog = Table > PsuedoStructure(trajectory)/MultidimPseudo(trajectory,time) featureType > TRAJECTORY: lat/lon/time coord not found > **Failed to find FeatureDatasetFactory for= /home/heikok/openoil2.nc4 > datatype=TRAJECTORY > ---------- > > > According to 'CoordSys', lat/lon/time are availble. > > The PointFeature/TRAJECTORY wasn't then able to plot the data. Any idea > how I can correct my data to enable plotting in netcdf-java UI? > > > Best regards, > > Heiko > > > > _______________________________________________ > netcdf-java mailing list > netcdf-java@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ >
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