Exemplo n.º 1
0
  public TableConfig getConfig(FeatureType wantFeatureType, NetcdfDataset ds, Formatter errlog)
      throws IOException {
    TableConfig topTable = new TableConfig(Table.Type.Top, "singleTrajectory");

    CoordinateAxis coordAxis = CoordSysEvaluator.findCoordByType(ds, AxisType.Time);
    if (coordAxis == null) {
      errlog.format("Cant find a time coordinate");
      return null;
    }
    final Dimension innerDim = coordAxis.getDimension(0);
    boolean obsIsStruct = Evaluator.hasNetcdf3RecordStructure(ds) && innerDim.isUnlimited();

    TableConfig obsTable = new TableConfig(Table.Type.Structure, innerDim.getShortName());
    obsTable.dimName = innerDim.getShortName();
    obsTable.time = coordAxis.getFullName();
    obsTable.structName = obsIsStruct ? "record" : innerDim.getShortName();
    obsTable.structureType =
        obsIsStruct
            ? TableConfig.StructureType.Structure
            : TableConfig.StructureType.PsuedoStructure;
    CoordSysEvaluator.findCoords(
        obsTable,
        ds,
        new CoordSysEvaluator.Predicate() {
          public boolean match(CoordinateAxis axis) {
            return innerDim.equals(axis.getDimension(0));
          }
        });

    topTable.addChild(obsTable);
    return topTable;
  }
Exemplo n.º 2
0
  // convert to shared dimensions
  private void setSharedDimensions(
      Variable v, List<Element> values, List<Dimension> unknownDims, String location) {
    if (values.size() == 0) return;

    // remove the "scalar" dumbension
    Iterator<Element> iter = values.iterator();
    while (iter.hasNext()) {
      Element value = iter.next();
      String dimName = value.getText().trim();
      if (dimName.equalsIgnoreCase("scalar")) iter.remove();
    }

    // gotta have same number of dimensions
    List<Dimension> oldDims = v.getDimensions();
    if (oldDims.size() != values.size()) {
      log.error("Different number of dimensions for {} {}", v, location);
      return;
    }

    List<Dimension> newDims = new ArrayList<>();
    Group group = v.getParentGroup();

    for (int i = 0; i < values.size(); i++) {
      Element value = values.get(i);
      String dimName = value.getText().trim();
      dimName = NetcdfFile.makeValidCdmObjectName(dimName);

      Dimension dim = group.findDimension(dimName);
      Dimension oldDim = oldDims.get(i);
      if (dim == null) dim = checkUnknownDims(dimName, unknownDims, oldDim, location);

      if (dim == null) {
        log.error(
            "Unknown Dimension= {} for variable = {} {} ", dimName, v.getFullName(), location);
        return;
      }
      if (dim.getLength() != oldDim.getLength()) {
        log.error(
            "Shared dimension ("
                + dim.getShortName()
                + ") has different length than data dimension ("
                + oldDim.getShortName()
                + ") shared="
                + dim.getLength()
                + " org="
                + oldDim.getLength()
                + " for "
                + v
                + " "
                + location);
        return;
      }
      newDims.add(dim);
    }
    v.setDimensions(newDims);
    if (showWork) System.out.printf(" set shared dimensions for %s %n", v.getNameAndDimensions());
  }
Exemplo n.º 3
0
  public void testDimensions(NetcdfFile ncfile) {
    System.out.println("ncfile = \n" + ncfile);

    Dimension latDim = ncfile.findDimension("lat");
    assert null != latDim;
    assert latDim.getShortName().equals("lat");
    assert latDim.getLength() == 3;
    assert !latDim.isUnlimited();

    Dimension lonDim = ncfile.findDimension("lon");
    assert null != lonDim;
    assert lonDim.getShortName().equals("lon");
    assert lonDim.getLength() == 4;
    assert !lonDim.isUnlimited();

    Dimension timeDim = ncfile.findDimension("time");
    assert null != timeDim;
    assert timeDim.getShortName().equals("time");
    assert timeDim.getLength() == 3 : timeDim.getLength();
  }
Exemplo n.º 4
0
 // look if the wanted dimension is in the  unknownDims list.
 private Dimension checkUnknownDims(
     String wantDim, List<Dimension> unknownDims, Dimension oldDim, String location) {
   for (Dimension dim : unknownDims) {
     if (dim.getShortName().equals(wantDim)) {
       int len = oldDim.getLength();
       if (len == 0) dim.setUnlimited(true); // allow zero length dimension !!
       dim.setLength(len); // use existing (anon) dimension
       Group parent = dim.getGroup();
       parent.addDimensionIfNotExists(dim); // add to the parent
       unknownDims.remove(dim); // remove from list LOOK is this ok?
       log.warn("unknownDim {} length set to {}{}", wantDim, oldDim.getLength(), location);
       return dim;
     }
   }
   return null;
 }
Exemplo n.º 5
0
    public VariableBean(VariableEnhanced v) {
      this.ve = v;

      setName(v.getFullName());
      setDescription(v.getDescription());
      setUnits(v.getUnitsString());

      // collect dimensions
      StringBuilder lens = new StringBuilder();
      StringBuilder names = new StringBuilder();
      java.util.List dims = v.getDimensions();
      for (int j = 0; j < dims.size(); j++) {
        ucar.nc2.Dimension dim = (ucar.nc2.Dimension) dims.get(j);
        if (j > 0) {
          lens.append(",");
          names.append(",");
        }
        String name = dim.isShared() ? dim.getShortName() : "anon";
        names.append(name);
        lens.append(dim.getLength());
      }
      setDims(names.toString());
      setShape(lens.toString());

      StringBuilder buff = new StringBuilder();
      List<CoordinateSystem> csList = v.getCoordinateSystems();
      for (CoordinateSystem cs : csList) {
        if (firstCoordSys == null) firstCoordSys = cs;
        else buff.append("; ");

        buff.append(cs.getName());

        Formatter gridBuff = new Formatter();
        if (GridCoordSys.isGridCoordSys(gridBuff, cs, v)) {
          addDataType("grid");
        } /* else if (PointDatasetDefaultHandler.isPointFeatureDataset(ds)) {
            addDataType("point");
          } */
      }
      setCoordSys(buff.toString());
    }
Exemplo n.º 6
0
    public AxisBean(CoordinateAxis v) {
      this.axis = v;

      setName(v.getFullName());
      setCoordVar(v.isCoordinateVariable());
      setDescription(v.getDescription());
      setUnits(v.getUnitsString());

      // collect dimensions
      StringBuilder lens = new StringBuilder();
      StringBuilder names = new StringBuilder();
      java.util.List dims = v.getDimensions();
      for (int j = 0; j < dims.size(); j++) {
        ucar.nc2.Dimension dim = (ucar.nc2.Dimension) dims.get(j);
        if (j > 0) {
          lens.append(",");
          names.append(",");
        }
        String name = dim.isShared() ? dim.getShortName() : "anon";
        names.append(name);
        lens.append(dim.getLength());
      }
      setDims(names.toString());
      setShape(lens.toString());

      AxisType at = v.getAxisType();
      if (at != null) setAxisType(at.toString());
      String p = v.getPositive();
      if (p != null) setPositive(p);

      if (v instanceof CoordinateAxis1D) {
        CoordinateAxis1D v1 = (CoordinateAxis1D) v;
        if (v1.isRegular()) setRegular(Double.toString(v1.getIncrement()));
      }
      isLayer = (null != axis.findAttribute(_Coordinate.ZisLayer));
      isInterval = axis.isInterval();
    }
Exemplo n.º 7
0
 public String toString() {
   return d.getShortName();
 }
  public static boolean isValidFile(NetcdfDataset ds) {
    // Check that has a time dimension and a trajectory dimension.
    List list = ds.getRootGroup().getDimensions();
    if (list.size() != 2) return (false);
    Dimension d;
    for (int i = 0; i < 2; i++) {
      d = (Dimension) list.get(i);
      if (!d.getShortName().equals(timeDimNameDefault)
          && !d.getShortName().equals(trajDimNameDefault)) return (false);
    }

    // Check that has a trajectory coordinate variable.
    Variable var = ds.getRootGroup().findVariable(trajVarNameDefault);
    if (var == null) return (false);
    list = var.getDimensions();
    if (list.size() != 1) return (false);
    d = (Dimension) list.get(0);
    if (!d.getShortName().equals(trajDimNameDefault)) return (false);

    // Check that has a time coordinate variable with units that are udunits time
    var = ds.getRootGroup().findVariable(timeVarNameDefault);
    if (var == null) return (false);
    list = var.getDimensions();
    if (list.size() != 1) return (false);
    d = (Dimension) list.get(0);
    if (!d.getShortName().equals(timeDimNameDefault)) return (false);
    String units = var.findAttribute("units").getStringValue();
    Date date = DateUnit.getStandardDate("0 " + units);
    if (date == null) return (false);

    // Check for variable latitude(time) with units of "deg".
    var = ds.getRootGroup().findVariable(latVarNameDefault);
    if (var == null) return (false);
    list = var.getDimensions();
    if (list.size() != 2) return (false);
    for (int i = 0; i < 2; i++) {
      d = (Dimension) list.get(i);
      if (!d.getShortName().equals(timeDimNameDefault)
          && !d.getShortName().equals(trajDimNameDefault)) return (false);
    }
    //    units = var.findAttribute( "units").getStringValue();
    //    if ( ! SimpleUnit.isCompatible( units, "degrees_north")) return( false);

    // Check for variable longitude(time) with units of "deg".
    var = ds.getRootGroup().findVariable(lonVarNameDefault);
    if (var == null) return (false);
    list = var.getDimensions();
    if (list.size() != 2) return (false);
    for (int i = 0; i < 2; i++) {
      d = (Dimension) list.get(i);
      if (!d.getShortName().equals(timeDimNameDefault)
          && !d.getShortName().equals(trajDimNameDefault)) return (false);
    }
    //    units = var.findAttribute( "units").getStringValue();
    //    if ( ! SimpleUnit.isCompatible( units, "degrees_east")) return( false);

    // Check for variable altitude(time) with units of "m".
    var = ds.getRootGroup().findVariable(elevVarNameDefault);
    if (var == null) return (false);
    list = var.getDimensions();
    if (list.size() != 2) return (false);
    for (int i = 0; i < 2; i++) {
      d = (Dimension) list.get(i);
      if (!d.getShortName().equals(timeDimNameDefault)
          && !d.getShortName().equals(trajDimNameDefault)) return (false);
    }
    units = var.findAttribute("units").getStringValue();
    if (!SimpleUnit.isCompatible(units, "m")) return (false);

    return (true);
  }