コード例 #1
0
  /**
   * Constructor.
   *
   * @param ncfile the netccdf file
   * @param typedDataVariables list of data variables; all record variables will be added to this
   *     list, except . You can remove extra
   * @param obsTimeVName observation time variable name (required)
   * @param nomTimeVName nominal time variable name (may be null)
   * @throws IllegalArgumentException if ncfile has no unlimited dimension and recDimName is null.
   */
  public RecordDatasetHelper(
      NetcdfDataset ncfile,
      String obsTimeVName,
      String nomTimeVName,
      List<VariableSimpleIF> typedDataVariables,
      String recDimName,
      Formatter errBuffer) {
    this.ncfile = ncfile;
    this.obsTimeVName = obsTimeVName;
    this.nomTimeVName = nomTimeVName;
    this.errs = errBuffer;

    // check if we already have a structure vs if we have to add it.

    if (this.ncfile.hasUnlimitedDimension()) {
      this.ncfile.sendIospMessage(NetcdfFile.IOSP_MESSAGE_ADD_RECORD_STRUCTURE);
      this.recordVar = (StructureDS) this.ncfile.getRootGroup().findVariable("record");
      this.obsDim = ncfile.getUnlimitedDimension();

    } else {
      if (recDimName == null)
        throw new IllegalArgumentException(
            "File <"
                + this.ncfile.getLocation()
                + "> has no unlimited dimension, specify psuedo record dimension with observationDimension global attribute.");
      this.obsDim = this.ncfile.getRootGroup().findDimension(recDimName);
      this.recordVar = new StructurePseudoDS(this.ncfile, null, "record", null, obsDim);
    }

    // create member variables
    List<Variable> recordMembers = ncfile.getVariables();
    for (Variable v : recordMembers) {
      if (v == recordVar) continue;
      if (v.isScalar()) continue;
      if (v.getDimension(0) == this.obsDim) typedDataVariables.add(v);
    }

    // need the time units
    Variable timeVar = ncfile.findVariable(obsTimeVName);
    String timeUnitString =
        ncfile.findAttValueIgnoreCase(timeVar, CDM.UNITS, "seconds since 1970-01-01");
    try {
      timeUnit = new DateUnit(timeUnitString);
    } catch (Exception e) {
      if (null != errs) errs.format("Error on string = %s == %s%n", timeUnitString, e.getMessage());
      try {
        timeUnit = new DateUnit("seconds since 1970-01-01");
      } catch (Exception e1) {
        // cant happen
      }
    }
  }
コード例 #2
0
  public void setLocationInfo(String latVName, String lonVName, String zcoordVName) {
    this.latVName = latVName;
    this.lonVName = lonVName;
    this.zcoordVName = zcoordVName;

    // check for meter conversion
    if (zcoordVName != null) {
      Variable v = ncfile.findVariable(zcoordVName);
      zcoordUnits = ncfile.findAttValueIgnoreCase(v, CDM.UNITS, null);
      if (zcoordUnits != null)
        try {
          altScaleFactor = getMetersConversionFactor(zcoordUnits);
        } catch (Exception e) {
          if (errs != null) errs.format("%s", e.getMessage());
        }
    }
  }