public void writeObsData(PointFeature pf) throws IOException {

    StructureDataScalar coords = new StructureDataScalar("Coords");
    if (useAlt)
      coords.addMember(
          altitudeCoordinateName,
          null,
          null,
          DataType.DOUBLE,
          false,
          pf.getLocation().getAltitude());

    StructureDataComposite sdall = new StructureDataComposite();
    sdall.add(coords); // coords first so it takes precedence
    sdall.add(pf.getFeatureData());

    obsRecno = super.writeStructureData(obsRecno, record, sdall, dataMap);
  }
  public void writeProfileData(ProfileFeature profile, int nobs) throws IOException {
    trackBB(profile.getLatLon(), CalendarDate.of(profile.getTime()));

    StructureDataScalar profileCoords = new StructureDataScalar("Coords");
    profileCoords.addMember(
        latName, null, null, DataType.DOUBLE, false, profile.getLatLon().getLatitude());
    profileCoords.addMember(
        lonName, null, null, DataType.DOUBLE, false, profile.getLatLon().getLongitude());
    if (profile.getTime() != null)
      profileCoords.addMember(
          profileTimeName,
          null,
          null,
          DataType.DOUBLE,
          false,
          timeUnit.makeValue(profile.getTime())); // LOOK time not always part of profile
    profileCoords.addMemberString(profileIdName, null, null, profile.getName().trim(), id_strlen);
    profileCoords.addMember(numberOfObsName, null, null, DataType.INT, false, nobs);

    StructureData profileData = profile.getFeatureData();
    StructureDataComposite sdall = new StructureDataComposite();
    sdall.add(profileCoords); // coords first so it takes precedence
    sdall.add(profileData);

    profileRecno = super.writeStructureData(profileRecno, profileStruct, sdall, featureVarMap);
  }