/**
   * Create a new GridVertCoord for a layer
   *
   * @param record layer record
   * @param levelName name of this level
   * @param lookup lookup table
   * @param level1 level 1
   * @param level2 level 2
   */
  GridVertCoord(
      GridRecord record,
      String levelName,
      GridTableLookup lookup,
      double[] level1,
      double[] level2) {
    this.typicalRecord = record;
    this.levelName = levelName;
    this.lookup = lookup;

    // dontUseVertical    = !lookup.isVerticalCoordinate(record);
    positive = lookup.isPositiveUp(record) ? "up" : "down";
    units = lookup.getLevelUnit(record);
    usesBounds = lookup.isLayer(this.typicalRecord);

    levels = new ArrayList<LevelCoord>(level1.length);
    for (int i = 0; i < level1.length; i++) {
      levels.add(new LevelCoord(level1[i], (level2 == null) ? 0.0 : level2[i]));
    }

    Collections.sort(levels);
    if (positive.equals("down")) {
      Collections.reverse(levels);
    }
    dontUseVertical = (levels.size() == 1);
  }
  /**
   * Create a new GridVertCoord with the appropriate params
   *
   * @param records list of GridRecords that make up this coord
   * @param levelName the name of the level
   * @param lookup the lookup table
   * @param hcs Horizontal coordinate
   */
  GridVertCoord(
      List<GridRecord> records, String levelName, GridTableLookup lookup, GridHorizCoordSys hcs) {
    this.typicalRecord = records.get(0);
    this.levelName = levelName;
    this.lookup = lookup;

    dontUseVertical = !lookup.isVerticalCoordinate(typicalRecord);
    positive = lookup.isPositiveUp(typicalRecord) ? "up" : "down";
    units = lookup.getLevelUnit(typicalRecord);

    usesBounds = lookup.isLayer(this.typicalRecord);
    addLevels(records);

    if (typicalRecord.getLevelType1() == 109 && lookup instanceof Grib1GridTableLookup)
      checkForPressureLevels(records, hcs);

    if (GridServiceProvider.debugVert) {
      System.out.println(
          "GribVertCoord: "
              + getVariableName()
              + "("
              + typicalRecord.getLevelType1()
              + ") useVertical= "
              + (!dontUseVertical)
              + " positive="
              + positive
              + " units="
              + units);
    }
  }