protected void makeTessellatedLocations(
      Globe globe, int subdivisions, List<LatLon> locations, List<LatLon> tessellatedLocations) {
    ArrayList<Vec4> points = new ArrayList<Vec4>();
    for (LatLon ll : locations) {
      points.add(globe.computePointFromLocation(ll));
    }

    //noinspection StringEquality
    if (WWMath.computeWindingOrderOfLocations(locations) != AVKey.COUNTER_CLOCKWISE)
      Collections.reverse(locations);

    Vec4 centerPoint = Vec4.computeAveragePoint(points);
    Vec4 surfaceNormal = globe.computeSurfaceNormalAtPoint(centerPoint);

    int numPoints = points.size();
    float[] coords = new float[3 * numPoints];
    for (int i = 0; i < numPoints; i++) {
      points.get(i).toFloatArray(coords, 3 * i, 3);
    }

    GeometryBuilder gb = new GeometryBuilder();
    GeometryBuilder.IndexedTriangleArray tessellatedPoints =
        gb.tessellatePolygon(0, numPoints, coords, surfaceNormal);

    for (int i = 0; i < subdivisions; i++) {
      gb.subdivideIndexedTriangleArray(tessellatedPoints);
    }

    for (int i = 0; i < tessellatedPoints.getVertexCount(); i++) {
      Vec4 v = Vec4.fromFloatArray(tessellatedPoints.getVertices(), 3 * i, 3);
      tessellatedLocations.add(globe.computePositionFromPoint(v));
    }
  }
Example #2
0
  public Position getReferencePosition() {
    ArrayList<LatLon> locations = new ArrayList<LatLon>(this.layers.size());
    for (Layer l : this.layers) {
      locations.add(l.getCenter());
    }

    return this.computeReferencePosition(locations, this.getAltitudes());
  }
Example #3
0
 protected Iterable<? extends LatLon> computeDrawLocations(
     DrawContext dc, SurfaceTileDrawContext sdc) {
   ArrayList<LatLon> drawList = new ArrayList<LatLon>();
   double safeDistanceDegreesSquared = Math.pow(this.computeSafeRadius(dc, sdc).degrees, 2);
   for (LatLon location : this.getLocations()) {
     if (this.computeLocationDistanceDegreesSquared(sdc.getSector(), location)
         <= safeDistanceDegreesSquared) drawList.add(location);
   }
   return drawList;
 }
  protected static ArrayList<Position> computeElevations(ArrayList<Position> locations) {
    Sector sector = Sector.boundingSector(locations);
    HighResolutionTerrain hrt = new HighResolutionTerrain(new Earth(), sector, null, 1.0);

    ArrayList<Position> computedPositions = new ArrayList<Position>();
    for (LatLon latLon : locations) {
      Double elevation = hrt.getElevation(latLon);
      computedPositions.add(new Position(latLon, Math.round(elevation * 10000.0) / 10000.0));
    }

    return computedPositions;
  }
  protected static ArrayList<Position> readReferencePositions(String filePath)
      throws FileNotFoundException {
    ArrayList<Position> positions = new ArrayList<Position>();
    Scanner scanner = new Scanner(new File(filePath));

    while (scanner.hasNextDouble()) {
      double lat = scanner.nextDouble();
      double lon = scanner.nextDouble();
      double elevation = scanner.nextDouble();
      positions.add(Position.fromDegrees(lat, lon, elevation));
    }

    return positions;
  }
  @Override
  public Iterable<? extends LatLon> getLocations(Globe globe) {
    if (this.boundaries.getContourCount() == 0) return null;

    ArrayList<LatLon> combinedBoundaries = new ArrayList<LatLon>();

    for (int i = 0; i < this.boundaries.getContourCount(); i++) {
      for (LatLon location : this.boundaries.getContour(i)) {
        combinedBoundaries.add(location);
      }
    }

    return combinedBoundaries;
  }
  protected static void testPositions(
      String name, ArrayList<Position> referencePositions, ArrayList<Position> testPositions) {
    int numMatches = 0;

    for (int i = 0; i < referencePositions.size(); i++) {
      if (!testPositions.get(i).equals(referencePositions.get(i)))
        System.out.println(
            "MISMATCH: reference = "
                + referencePositions.get(i)
                + ", test = "
                + testPositions.get(i));
      else ++numMatches;
    }

    System.out.println(numMatches + " Matches for " + name);
  }
 private Iterable<GeographicText> makeIterable(DrawContext dc) {
   // get dispay dist for this service for use in label annealing
   double maxDisplayDistance = this.getPlaceNameService().getMaxDisplayDistance();
   ArrayList<GeographicText> list = new ArrayList<GeographicText>();
   for (int i = 0; i < this.numEntries; i++) {
     CharSequence str = getText(i);
     Position pos = getPosition(i);
     GeographicText text = new UserFacingText(str, pos);
     text.setFont(this.placeNameService.getFont());
     text.setColor(this.placeNameService.getColor());
     text.setBackgroundColor(this.placeNameService.getBackgroundColor());
     text.setVisible(isNameVisible(dc, this.placeNameService, pos));
     text.setPriority(maxDisplayDistance);
     list.add(text);
   }
   return list;
 }
    public void createRenderables() {
      this.gridElements = new ArrayList<GridElement>();
      double gridStep = this.size / 10;
      Position p1, p2;
      ArrayList<Position> positions = new ArrayList<Position>();

      // South-North lines
      for (int i = 1; i <= 9; i++) {
        double easting = this.SWEasting + gridStep * i;
        positions.clear();
        p1 = computePosition(this.UTMZone, this.hemisphere, easting, SWNorthing);
        p2 = computePosition(this.UTMZone, this.hemisphere, easting, SWNorthing + this.size);
        if (this.isTruncated) {
          computeTruncatedSegment(p1, p2, this.UTMZoneSector, positions);
        } else {
          positions.add(p1);
          positions.add(p2);
        }
        if (positions.size() > 0) {
          p1 = positions.get(0);
          p2 = positions.get(1);
          Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
          Sector lineSector = Sector.boundingSector(p1, p2);
          GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_EASTING);
          ge.setValue(easting);
          this.gridElements.add(ge);
        }
      }
      // West-East lines
      for (int i = 1; i <= 9; i++) {
        double northing = this.SWNorthing + gridStep * i;
        positions.clear();
        p1 = computePosition(this.UTMZone, this.hemisphere, SWEasting, northing);
        p2 = computePosition(this.UTMZone, this.hemisphere, SWEasting + this.size, northing);
        if (this.isTruncated) {
          computeTruncatedSegment(p1, p2, this.UTMZoneSector, positions);
        } else {
          positions.add(p1);
          positions.add(p2);
        }
        if (positions.size() > 0) {
          p1 = positions.get(0);
          p2 = positions.get(1);
          Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
          Sector lineSector = Sector.boundingSector(p1, p2);
          GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_NORTHING);
          ge.setValue(northing);
          this.gridElements.add(ge);
        }
      }
    }
Example #10
0
  protected Extent computeExtent(Globe globe, double verticalExaggeration) {
    List<Layer> cakeLayers = this.getLayers();

    if (cakeLayers == null || cakeLayers.isEmpty()) {
      return null;
    } else if (cakeLayers.size() == 1) {
      return cakeLayers.get(0).computeExtent(globe, verticalExaggeration);
    } else {
      ArrayList<Box> extents = new ArrayList<Box>();

      for (Layer layer : cakeLayers) {
        extents.add(layer.computeExtent(globe, verticalExaggeration));
      }

      return Box.union(extents);
    }
  }
    public void doActionOnButton3() {
      //            Sector sector = Sector.fromDegrees( 44d, 46d, -123.3d, -123.2d );

      ArrayList<LatLon> latlons = new ArrayList<LatLon>();

      latlons.add(LatLon.fromDegrees(45.50d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.51d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.52d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.53d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.54d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.55d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.56d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.57d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.58d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.59d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.60d, -123.3d));

      ElevationModel model = this.wwd.getModel().getGlobe().getElevationModel();

      StringBuffer sb = new StringBuffer();
      for (LatLon ll : latlons) {
        double e = model.getElevation(ll.getLatitude(), ll.getLongitude());
        sb.append("\n").append(e);
      }

      Logging.logger().info(sb.toString());
    }
    public List<NavigationTile> navTilesVisible(
        DrawContext dc, double minDistSquared, double maxDistSquared) {
      ArrayList<NavigationTile> navList = new ArrayList<NavigationTile>();
      if (this.isNavSectorVisible(dc, minDistSquared, maxDistSquared)) {
        if (this.level > 0 && !this.hasSubTiles()) this.buildSubNavTiles();

        if (this.hasSubTiles()) {
          for (NavigationTile nav : subNavTiles) {
            navList.addAll(nav.navTilesVisible(dc, minDistSquared, maxDistSquared));
          }
        } else // at bottom level navigation tile
        {
          navList.add(this);
        }
      }

      return navList;
    }
  @Override
  protected void doMoveTo(Position oldReferencePosition, Position newReferencePosition) {
    if (this.boundaries.getContourCount() == 0) return;

    for (int i = 0; i < this.boundaries.getContourCount(); i++) {
      ArrayList<LatLon> newLocations = new ArrayList<LatLon>();

      for (LatLon ll : this.boundaries.getContour(i)) {
        Angle heading = LatLon.greatCircleAzimuth(oldReferencePosition, ll);
        Angle pathLength = LatLon.greatCircleDistance(oldReferencePosition, ll);
        newLocations.add(LatLon.greatCircleEndPosition(newReferencePosition, heading, pathLength));
      }

      this.boundaries.setContour(i, newLocations);
    }

    // We've changed the multi-polygon's list of boundaries; flag the shape as changed.
    this.onShapeChanged();
  }
  protected ArrayList<SquareZone> createSquaresGrid(
      int UTMZone,
      String hemisphere,
      Sector UTMZoneSector,
      double minEasting,
      double maxEasting,
      double minNorthing,
      double maxNorthing) {
    ArrayList<SquareZone> squares = new ArrayList<SquareZone>();
    double startEasting = Math.floor(minEasting / ONEHT) * ONEHT;
    double startNorthing = Math.floor(minNorthing / ONEHT) * ONEHT;
    int cols = (int) Math.ceil((maxEasting - startEasting) / ONEHT);
    int rows = (int) Math.ceil((maxNorthing - startNorthing) / ONEHT);
    SquareZone[][] squaresArray = new SquareZone[rows][cols];
    int col = 0;
    for (double easting = startEasting; easting < maxEasting; easting += ONEHT) {
      int row = 0;
      for (double northing = startNorthing; northing < maxNorthing; northing += ONEHT) {
        SquareZone sz =
            new SquareZone(UTMZone, hemisphere, UTMZoneSector, easting, northing, ONEHT);
        if (sz.boundingSector != null && !sz.isOutsideGridZone()) {
          squares.add(sz);
          squaresArray[row][col] = sz;
        }
        row++;
      }
      col++;
    }

    // Keep track of neighbors
    for (col = 0; col < cols; col++) {
      for (int row = 0; row < rows; row++) {
        SquareZone sz = squaresArray[row][col];
        if (sz != null) {
          sz.setNorthNeighbor(row + 1 < rows ? squaresArray[row + 1][col] : null);
          sz.setEastNeighbor(col + 1 < cols ? squaresArray[row][col + 1] : null);
        }
      }
    }

    return squares;
  }
    protected void addRectangularArrayShapes(RenderableLayer layer) {
      ArrayList<AnalyticSurface.GridPointAttributes> pointAttrs =
          new ArrayList<AnalyticSurface.GridPointAttributes>();
      for (double value : this.arrayValues) {
        Color color = this.colorForValue(value, 0.5); // color for value at 50% brightness
        pointAttrs.add(AnalyticSurface.createGridPointAttributes(value, color));
      }

      AnalyticSurfaceAttributes attrs = new AnalyticSurfaceAttributes();
      attrs.setDrawOutline(false);
      attrs.setDrawShadow(false);

      AnalyticSurface surface = new AnalyticSurface();
      surface.setSurfaceAttributes(attrs);
      surface.setSector(this.arraySector);
      surface.setDimensions(this.arrayWidth, this.arrayHeight);
      surface.setValues(pointAttrs);
      surface.setAltitudeMode(WorldWind.CLAMP_TO_GROUND);
      layer.addRenderable(surface);
    }
  @Override
  protected void doRender(DrawContext dc) {
    this.referencePoint = this.computeReferencePoint(dc);

    int serviceCount = this.placeNameServiceSet.getServiceCount();
    for (int i = 0; i < serviceCount; i++) {
      PlaceNameService placeNameService = this.placeNameServiceSet.getService(i);
      if (!isServiceVisible(dc, placeNameService)) continue;

      double minDistSquared =
          placeNameService.getMinDisplayDistance() * placeNameService.getMinDisplayDistance();
      double maxDistSquared =
          placeNameService.getMaxDisplayDistance() * placeNameService.getMaxDisplayDistance();

      if (isSectorVisible(
          dc, placeNameService.getMaskingSector(), minDistSquared, maxDistSquared)) {
        ArrayList<Tile> baseTiles = new ArrayList<Tile>();
        NavigationTile navTile = this.navTiles.get(i);
        // drill down into tiles to find bottom level navTiles visible
        List<NavigationTile> list = navTile.navTilesVisible(dc, minDistSquared, maxDistSquared);
        for (NavigationTile nt : list) {
          baseTiles.addAll(nt.getTiles());
        }

        for (Tile tile : baseTiles) {
          try {
            drawOrRequestTile(dc, tile, minDistSquared, maxDistSquared);
          } catch (Exception e) {
            Logging.logger()
                .log(
                    Level.FINE,
                    Logging.getMessage("layers.PlaceNameLayer.ExceptionRenderingTile"),
                    e);
          }
        }
      }
    }

    this.sendRequests();
    this.requestQ.clear();
  }
  private void writeGeographicImageGeoKeys(ArrayList<TiffIFDEntry> ifds, AVList params)
      throws IOException {
    long offset = this.theChannel.position();

    if (isImage(params) && isGeographic(params)) {
      int epsg = GeoTiff.GCS.WGS_84;

      if (params.hasKey(AVKey.PROJECTION_EPSG_CODE))
        epsg = (Integer) params.getValue(AVKey.PROJECTION_EPSG_CODE);

      short[] values =
          new short[] {
            // GeoKeyDirectory header
            GeoTiff.GeoKeyHeader.KeyDirectoryVersion,
            GeoTiff.GeoKeyHeader.KeyRevision,
            GeoTiff.GeoKeyHeader.MinorRevision,
            0, // IMPORTANT!! we will update count below, after the array initialization
            // end of header -

            // geo keys array

            /* key 1 */
            GeoTiff.GeoKey.ModelType,
            0,
            1,
            GeoTiff.ModelType.Geographic,
            /* key 2 */
            GeoTiff.GeoKey.RasterType,
            0,
            1,
            (short) (0xFFFF & GeoTiff.RasterType.RasterPixelIsArea),
            /* key 3 */
            GeoTiff.GeoKey.GeographicType,
            0,
            1,
            (short) (0xFFFF & epsg),
            /* key 4 */
            GeoTiff.GeoKey.GeogAngularUnits,
            0,
            1,
            GeoTiff.Unit.Angular.Angular_Degree
          };

      // IMPORTANT!! update count - number of geokeys
      values[3] = (short) (values.length / 4);

      byte[] bytes = this.getBytes(values);
      this.theChannel.write(ByteBuffer.wrap(bytes));
      ifds.add(
          new TiffIFDEntry(GeoTiff.Tag.GEO_KEY_DIRECTORY, Tiff.Type.SHORT, values.length, offset));
    }
  }
Example #18
0
  @Override
  protected void doRestoreState(RestorableSupport rs, RestorableSupport.StateObject context) {
    super.doRestoreState(rs, context);

    RestorableSupport.StateObject so = rs.getStateObject(context, "layers");
    if (so == null) return;

    RestorableSupport.StateObject[] lsos = rs.getAllStateObjects(so, "layer");
    if (lsos == null || lsos.length == 0) return;

    ArrayList<Layer> layerList = new ArrayList<Layer>(lsos.length);

    for (RestorableSupport.StateObject lso : lsos) {
      if (lso != null) {
        Layer layer = new Layer();
        layer.doRestoreState(rs, lso);
        layerList.add(layer);
      }
    }

    this.setLayers(layerList);
  }
  protected static ArrayList<Position> generateReferenceLocations(
      Sector sector, int numLats, int numLons) {
    ArrayList<Position> locations = new ArrayList<Position>();
    double dLat =
        (sector.getMaxLatitude().degrees - sector.getMinLatitude().degrees) / (numLats - 1);
    double dLon =
        (sector.getMaxLongitude().degrees - sector.getMinLongitude().degrees) / (numLons - 1);
    for (int j = 0; j < numLats; j++) {
      double lat = sector.getMinLatitude().degrees + j * dLat;

      for (int i = 0; i < numLons; i++) {
        double lon = sector.getMinLongitude().degrees + i * dLon;

        // Specify angles to five decimal places.
        locations.add(
            Position.fromDegrees(
                Math.round(lat * 100000.0) / 100000.0, Math.round(lon * 100000.0) / 100000.0, 0));
      }
    }

    return locations;
  }
    public void doActionOnButton4() {
      ArrayList<LatLon> locations = new ArrayList<LatLon>();

      locations.add(LatLon.fromDegrees(45.50d, -123.3d));
      locations.add(LatLon.fromDegrees(45.52d, -123.3d));
      locations.add(LatLon.fromDegrees(45.54d, -123.3d));
      locations.add(LatLon.fromDegrees(45.56d, -123.3d));
      locations.add(LatLon.fromDegrees(45.58d, -123.3d));
      locations.add(LatLon.fromDegrees(45.60d, -123.3d));

      locations.add(LatLon.fromDegrees(40.50d, -120.1d));
      locations.add(LatLon.fromDegrees(40.52d, -120.2d));
      locations.add(LatLon.fromDegrees(40.54d, -120.3d));
      locations.add(LatLon.fromDegrees(40.56d, -120.4d));
      locations.add(LatLon.fromDegrees(40.58d, -120.5d));
      locations.add(LatLon.fromDegrees(40.60d, -120.6d));

      // Now, let's find WMSBasicElevationModel
      WMSBasicElevationModel wmsbem = null;

      ElevationModel model = this.wwd.getModel().getGlobe().getElevationModel();
      if (model instanceof CompoundElevationModel) {
        CompoundElevationModel cbem = (CompoundElevationModel) model;
        for (ElevationModel em : cbem.getElevationModels()) {
          // you can have additional checks if you know specific model name, etc.
          if (em instanceof WMSBasicElevationModel) {
            wmsbem = (WMSBasicElevationModel) em;
            break;
          }
        }
      } else if (model instanceof WMSBasicElevationModel) {
        wmsbem = (WMSBasicElevationModel) model;
      }

      if (null != wmsbem) {
        ElevationsRetriever retriever =
            new ElevationsRetriever(wmsbem, locations, 10000, 30000, new NotifyWhenReady());
        retriever.start();
      } else {
        String message =
            Logging.getMessage(
                "ElevationModel.ExceptionRequestingElevations",
                "No instance of WMSBasicElevationModel was found");
        Logging.logger().severe(message);
      }
    }
    public void doActionOnButton2() {
      ArrayList<LatLon> latlons = new ArrayList<LatLon>();

      latlons.add(LatLon.fromDegrees(45.50d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.51d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.52d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.53d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.54d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.55d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.56d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.57d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.58d, -123.3d));
      //            latlons.add( LatLon.fromDegrees( 45.59d, -123.3d ) );
      latlons.add(LatLon.fromDegrees(45.60d, -123.3d));

      Sector sector = Sector.fromDegrees(44d, 46d, -123d, -121d);
      //            Sector sector = Sector.boundingSector( latlons );

      double[] elevations = new double[latlons.size()];

      // request resolution of DTED2 (1degree / 3600 )
      double targetResolution = Angle.fromDegrees(1d).radians / 3600;

      double resolutionAchieved =
          this.wwd
              .getModel()
              .getGlobe()
              .getElevationModel()
              .getElevations(sector, latlons, targetResolution, elevations);

      StringBuffer sb = new StringBuffer();
      for (double e : elevations) {
        sb.append("\n").append(e);
      }
      sb.append("\nresolutionAchieved = ").append(resolutionAchieved);
      sb.append(", requested resolution = ").append(targetResolution);

      Logging.logger().info(sb.toString());
    }
    public void createRenderables() {
      this.gridElements = new ArrayList<GridElement>();

      ArrayList<Position> positions = new ArrayList<Position>();
      Position p1, p2;
      Object polyline;
      Sector lineSector;

      // left segment
      positions.clear();
      if (this.isTruncated) {
        computeTruncatedSegment(sw, nw, this.UTMZoneSector, positions);
      } else {
        positions.add(sw);
        positions.add(nw);
      }
      if (positions.size() > 0) {
        p1 = positions.get(0);
        p2 = positions.get(1);
        polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
        lineSector = Sector.boundingSector(p1, p2);
        GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_WEST);
        ge.setValue(this.SWEasting);
        this.gridElements.add(ge);
      }

      // right segment
      positions.clear();
      if (this.isTruncated) {
        computeTruncatedSegment(se, ne, this.UTMZoneSector, positions);
      } else {
        positions.add(se);
        positions.add(ne);
      }
      if (positions.size() > 0) {
        p1 = positions.get(0);
        p2 = positions.get(1);
        polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
        lineSector = Sector.boundingSector(p1, p2);
        GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_EAST);
        ge.setValue(this.SWEasting + this.size);
        this.gridElements.add(ge);
      }

      // bottom segment
      positions.clear();
      if (this.isTruncated) {
        computeTruncatedSegment(sw, se, this.UTMZoneSector, positions);
      } else {
        positions.add(sw);
        positions.add(se);
      }
      if (positions.size() > 0) {
        p1 = positions.get(0);
        p2 = positions.get(1);
        polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
        lineSector = Sector.boundingSector(p1, p2);
        GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_SOUTH);
        ge.setValue(this.SWNorthing);
        this.gridElements.add(ge);
      }

      // top segment
      positions.clear();
      if (this.isTruncated) {
        computeTruncatedSegment(nw, ne, this.UTMZoneSector, positions);
      } else {
        positions.add(nw);
        positions.add(ne);
      }
      if (positions.size() > 0) {
        p1 = positions.get(0);
        p2 = positions.get(1);
        polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
        lineSector = Sector.boundingSector(p1, p2);
        GridElement ge = new GridElement(lineSector, polyline, GridElement.TYPE_LINE_NORTH);
        ge.setValue(this.SWNorthing + this.size);
        this.gridElements.add(ge);
      }

      // Label
      if (this.name != null) {
        // Only add a label to squares above some dimension
        if (this.boundingSector.getDeltaLon().degrees
                    * Math.cos(this.centroid.getLatitude().radians)
                > .2
            && this.boundingSector.getDeltaLat().degrees > .2) {
          LatLon labelPos = null;
          if (this.UTMZone != 0) // Not at poles
          {
            labelPos = this.centroid;
          } else if (this.isPositionInside(new Position(this.squareCenter, 0))) {
            labelPos = this.squareCenter;
          } else if (this.squareCenter.getLatitude().degrees
                  <= this.UTMZoneSector.getMaxLatitude().degrees
              && this.squareCenter.getLatitude().degrees
                  >= this.UTMZoneSector.getMinLatitude().degrees) {
            labelPos = this.centroid;
          }
          if (labelPos != null) {
            GeographicText text = new UserFacingText(this.name, new Position(labelPos, 0));
            text.setPriority(this.size * 10);
            this.gridElements.add(
                new GridElement(this.boundingSector, text, GridElement.TYPE_GRIDZONE_LABEL));
          }
        }
      }
    }
  public void writeRaster(BufferWrapperRaster raster) throws IOException, IllegalArgumentException {
    if (raster == null) {
      String msg = Logging.getMessage("nullValue.RasterIsNull");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (0 == raster.getWidth() || 0 == raster.getHeight()) {
      String msg =
          Logging.getMessage("generic.InvalidImageSize", raster.getWidth(), raster.getHeight());
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    this.validateParameters(raster, raster.getWidth(), raster.getHeight());

    int bitsPerSample, samplesPerPixel, sampleFormat, photometric, numBands;

    if (AVKey.ELEVATION.equals(raster.getValue(AVKey.PIXEL_FORMAT))) {
      if (AVKey.FLOAT32.equals(raster.getValue(AVKey.DATA_TYPE))) {
        numBands = 1;
        samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
        sampleFormat = Tiff.SampleFormat.IEEEFLOAT;
        photometric = Tiff.Photometric.Grayscale_BlackIsZero;
        bitsPerSample = Tiff.BitsPerSample.ELEVATIONS_FLOAT32;
      } else if (AVKey.INT16.equals(raster.getValue(AVKey.DATA_TYPE))) {
        numBands = 1;
        samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
        sampleFormat = Tiff.SampleFormat.SIGNED;
        photometric = Tiff.Photometric.Grayscale_BlackIsZero;
        bitsPerSample = Tiff.BitsPerSample.ELEVATIONS_INT16;
      } else {
        String msg =
            Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.DATA_TYPE));
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    } else if (AVKey.IMAGE.equals(raster.getValue(AVKey.PIXEL_FORMAT))) {
      if (AVKey.INT8.equals(raster.getValue(AVKey.DATA_TYPE))) {
        numBands = 1;
        samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
        sampleFormat = Tiff.SampleFormat.UNSIGNED;
        photometric = Tiff.Photometric.Grayscale_BlackIsZero;
        bitsPerSample = Tiff.BitsPerSample.MONOCHROME_UINT8;
      } else if (AVKey.INT16.equals(raster.getValue(AVKey.DATA_TYPE))) {
        numBands = 1;
        samplesPerPixel = Tiff.SamplesPerPixel.MONOCHROME;
        sampleFormat = Tiff.SampleFormat.UNSIGNED;
        photometric = Tiff.Photometric.Grayscale_BlackIsZero;
        bitsPerSample = Tiff.BitsPerSample.MONOCHROME_UINT16;
      } else if (AVKey.INT32.equals(raster.getValue(AVKey.DATA_TYPE))) {
        numBands = 3;
        // TODO check ALPHA / Transparency
        samplesPerPixel = Tiff.SamplesPerPixel.RGB;
        sampleFormat = Tiff.SampleFormat.UNSIGNED;
        photometric = Tiff.Photometric.Color_RGB;
        bitsPerSample = Tiff.BitsPerSample.RGB;
      } else {
        String msg =
            Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.DATA_TYPE));
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    } else {
      String msg =
          Logging.getMessage("GeotiffWriter.UnsupportedType", raster.getValue(AVKey.PIXEL_FORMAT));
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    int bytesPerSample = numBands * bitsPerSample / Byte.SIZE;

    this.writeTiffHeader();

    // write the image data...
    int numRows = raster.getHeight();
    int numCols = raster.getWidth();
    int[] stripCounts = new int[numRows];
    int[] stripOffsets = new int[numRows];

    BufferWrapper srcBuffer = raster.getBuffer();

    ByteBuffer dataBuff = ByteBuffer.allocateDirect(numCols * bytesPerSample);

    switch (bitsPerSample) {
        //            case Tiff.BitsPerSample.MONOCHROME_BYTE:
      case Tiff.BitsPerSample.MONOCHROME_UINT8:
        {
          for (int y = 0; y < numRows; y++) {
            stripOffsets[y] = (int) this.theChannel.position();
            stripCounts[y] = numCols * bytesPerSample;

            dataBuff.clear();

            for (int x = 0; x < numCols * numBands; x++) {
              dataBuff.put(srcBuffer.getByte(x + y * numCols));
            }

            dataBuff.flip();
            this.theChannel.write(dataBuff);
          }
        }
        break;

        //            case Tiff.BitsPerSample.MONOCHROME_UINT16:
      case Tiff.BitsPerSample.ELEVATIONS_INT16:
        {
          for (int y = 0; y < numRows; y++) {
            stripOffsets[y] = (int) this.theChannel.position();
            stripCounts[y] = numCols * bytesPerSample;

            dataBuff.clear();

            for (int x = 0; x < numCols * numBands; x++) {
              dataBuff.putShort(srcBuffer.getShort(x + y * numCols));
            }

            dataBuff.flip();
            this.theChannel.write(dataBuff);
          }
        }
        break;

      case Tiff.BitsPerSample.ELEVATIONS_FLOAT32:
        {
          for (int y = 0; y < numRows; y++) {
            stripOffsets[y] = (int) this.theChannel.position();
            stripCounts[y] = numCols * bytesPerSample;

            dataBuff.clear();

            for (int x = 0; x < numCols * numBands; x++) {
              dataBuff.putFloat(srcBuffer.getFloat(x + y * numCols));
            }

            dataBuff.flip();
            this.theChannel.write(dataBuff);
          }
        }
        break;

      case Tiff.BitsPerSample.RGB:
        {
          for (int y = 0; y < numRows; y++) {
            stripOffsets[y] = (int) this.theChannel.position();
            stripCounts[y] = numCols * bytesPerSample;

            dataBuff.clear();

            for (int x = 0; x < numCols; x++) {
              int color = srcBuffer.getInt(x + y * numCols);
              byte red = (byte) (0xFF & (color >> 16));
              byte green = (byte) (0xFF & (color >> 8));
              byte blue = (byte) (0xFF & color);

              //                        dataBuff.put(0xFF & (color >> 24)); // alpha
              dataBuff.put(red).put(green).put(blue);
            }
            dataBuff.flip();
            this.theChannel.write(dataBuff);
          }
        }
        break;
    }

    // write out values for the tiff tags and build up the IFD. These are supposed to be sorted; for
    // now
    // do this manually here.
    ArrayList<TiffIFDEntry> ifds = new ArrayList<TiffIFDEntry>(10);

    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_WIDTH, Tiff.Type.LONG, 1, numCols));
    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_LENGTH, Tiff.Type.LONG, 1, numRows));

    long offset = this.theChannel.position();
    if (Tiff.BitsPerSample.RGB == bitsPerSample) {
      short[] bps = new short[numBands];
      for (int i = 0; i < numBands; i++) {
        bps[i] = Tiff.BitsPerSample.MONOCHROME_BYTE;
      }
      this.theChannel.write(ByteBuffer.wrap(this.getBytes(bps)));
      ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, numBands, offset));
    } else ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, 1, bitsPerSample));

    ifds.add(new TiffIFDEntry(Tiff.Tag.COMPRESSION, Tiff.Type.LONG, 1, Tiff.Compression.NONE));
    ifds.add(new TiffIFDEntry(Tiff.Tag.PHOTO_INTERPRETATION, Tiff.Type.SHORT, 1, photometric));
    ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLES_PER_PIXEL, Tiff.Type.SHORT, 1, samplesPerPixel));
    ifds.add(new TiffIFDEntry(Tiff.Tag.ORIENTATION, Tiff.Type.SHORT, 1, Tiff.Orientation.DEFAULT));
    ifds.add(
        new TiffIFDEntry(
            Tiff.Tag.PLANAR_CONFIGURATION, Tiff.Type.SHORT, 1, Tiff.PlanarConfiguration.CHUNKY));
    ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLE_FORMAT, Tiff.Type.SHORT, 1, sampleFormat));

    offset = this.theChannel.position();
    dataBuff = ByteBuffer.allocateDirect(stripOffsets.length * INTEGER_SIZEOF);
    for (int stripOffset : stripOffsets) {
      dataBuff.putInt(stripOffset);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);

    ifds.add(new TiffIFDEntry(Tiff.Tag.STRIP_OFFSETS, Tiff.Type.LONG, stripOffsets.length, offset));
    ifds.add(new TiffIFDEntry(Tiff.Tag.ROWS_PER_STRIP, Tiff.Type.LONG, 1, 1));

    offset = this.theChannel.position();
    dataBuff.clear(); // stripOffsets and stripCounts are same length by design; can reuse the
    // ByteBuffer...
    for (int stripCount : stripCounts) {
      dataBuff.putInt(stripCount);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);

    ifds.add(
        new TiffIFDEntry(Tiff.Tag.STRIP_BYTE_COUNTS, Tiff.Type.LONG, stripCounts.length, offset));

    this.appendGeoTiff(ifds, raster);

    this.writeIFDs(ifds);
  }
  /** Create the graticule grid elements */
  private void createUTMRenderables() {
    this.gridElements = new ArrayList<GridElement>();

    ArrayList<Position> positions = new ArrayList<Position>();

    // Generate meridians and zone labels
    int lon = -180;
    int zoneNumber = 1;
    int maxLat;
    for (int i = 0; i < 60; i++) {
      Angle longitude = Angle.fromDegrees(lon);
      // Meridian
      positions.clear();
      positions.add(new Position(Angle.fromDegrees(-80), longitude, 10e3));
      positions.add(new Position(Angle.fromDegrees(-60), longitude, 10e3));
      positions.add(new Position(Angle.fromDegrees(-30), longitude, 10e3));
      positions.add(new Position(Angle.ZERO, longitude, 10e3));
      positions.add(new Position(Angle.fromDegrees(30), longitude, 10e3));
      if (lon < 6 || lon > 36) {
        // 'regular' UTM meridians
        maxLat = 84;
        positions.add(new Position(Angle.fromDegrees(60), longitude, 10e3));
        positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
      } else {
        // Exceptions: shorter meridians around and north-east of Norway
        if (lon == 6) {
          maxLat = 56;
          positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
        } else {
          maxLat = 72;
          positions.add(new Position(Angle.fromDegrees(60), longitude, 10e3));
          positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
        }
      }
      Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
      Sector sector = Sector.fromDegrees(-80, maxLat, lon, lon);
      this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));

      // Zone label
      GeographicText text =
          new UserFacingText(zoneNumber + "", Position.fromDegrees(0, lon + 3, 0));
      sector = Sector.fromDegrees(-90, 90, lon + 3, lon + 3);
      this.gridElements.add(new GridElement(sector, text, GridElement.TYPE_LONGITUDE_LABEL));

      // Increase longitude and zone number
      lon += 6;
      zoneNumber++;
    }

    // Generate special meridian segments for exceptions around and north-east of Norway
    for (int i = 0; i < 5; i++) {
      positions.clear();
      lon = specialMeridians[i][0];
      positions.add(
          new Position(Angle.fromDegrees(specialMeridians[i][1]), Angle.fromDegrees(lon), 10e3));
      positions.add(
          new Position(Angle.fromDegrees(specialMeridians[i][2]), Angle.fromDegrees(lon), 10e3));
      Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
      Sector sector = Sector.fromDegrees(specialMeridians[i][1], specialMeridians[i][2], lon, lon);
      this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));
    }

    // Generate parallels - no exceptions
    int lat = -80;
    for (int i = 0; i < 21; i++) {
      Angle latitude = Angle.fromDegrees(lat);
      for (int j = 0; j < 4; j++) {
        // Each prallel is divided into four 90 degrees segments
        positions.clear();
        lon = -180 + j * 90;
        positions.add(new Position(latitude, Angle.fromDegrees(lon), 10e3));
        positions.add(new Position(latitude, Angle.fromDegrees(lon + 30), 10e3));
        positions.add(new Position(latitude, Angle.fromDegrees(lon + 60), 10e3));
        positions.add(new Position(latitude, Angle.fromDegrees(lon + 90), 10e3));
        Object polyline = createLineRenderable(positions, Polyline.LINEAR);
        Sector sector = Sector.fromDegrees(lat, lat, lon, lon + 90);
        this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));
      }
      // Latitude band label
      if (i < 20) {
        GeographicText text =
            new UserFacingText(latBands.charAt(i) + "", Position.fromDegrees(lat + 4, 0, 0));
        Sector sector = Sector.fromDegrees(lat + 4, lat + 4, -180, 180);
        this.gridElements.add(new GridElement(sector, text, GridElement.TYPE_LATITUDE_LABEL));
      }

      // Increase latitude
      lat += lat < 72 ? 8 : 12;
    }
  }
  private void writeColorImage(BufferedImage image, AVList params) throws IOException {
    int numBands = image.getRaster().getNumBands();
    long offset;

    this.writeTiffHeader();

    // write the image data...
    int numRows = image.getHeight();
    int numCols = image.getWidth();
    int[] stripCounts = new int[numRows];
    int[] stripOffsets = new int[numRows];
    ByteBuffer dataBuff = ByteBuffer.allocateDirect(numCols * numBands);
    Raster rast = image.getRaster();

    for (int i = 0; i < numRows; i++) {
      stripOffsets[i] = (int) this.theChannel.position();
      stripCounts[i] = numCols * numBands;
      int[] rowData = rast.getPixels(0, i, image.getWidth(), 1, (int[]) null);
      dataBuff.clear();
      for (int j = 0; j < numCols * numBands; j++) {
        putUnsignedByte(dataBuff, rowData[j]);
      }
      dataBuff.flip();
      this.theChannel.write(dataBuff);
    }

    // write out values for the tiff tags and build up the IFD. These are supposed to be sorted; for
    // now
    // do this manually here.
    ArrayList<TiffIFDEntry> ifds = new ArrayList<TiffIFDEntry>(10);

    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_WIDTH, Tiff.Type.LONG, 1, numCols));
    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_LENGTH, Tiff.Type.LONG, 1, numRows));

    ifds.add(
        new TiffIFDEntry(
            Tiff.Tag.PLANAR_CONFIGURATION, Tiff.Type.SHORT, 1, Tiff.PlanarConfiguration.CHUNKY));
    ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLES_PER_PIXEL, Tiff.Type.SHORT, 1, numBands));
    ifds.add(new TiffIFDEntry(Tiff.Tag.COMPRESSION, Tiff.Type.LONG, 1, Tiff.Compression.NONE));
    ifds.add(
        new TiffIFDEntry(
            Tiff.Tag.PHOTO_INTERPRETATION, Tiff.Type.SHORT, 1, Tiff.Photometric.Color_RGB));

    ifds.add(new TiffIFDEntry(Tiff.Tag.ORIENTATION, Tiff.Type.SHORT, 1, Tiff.Orientation.DEFAULT));

    offset = this.theChannel.position();

    short[] bps = new short[numBands];
    for (int i = 0; i < numBands; i++) {
      bps[i] = Tiff.BitsPerSample.MONOCHROME_BYTE;
    }
    this.theChannel.write(ByteBuffer.wrap(this.getBytes(bps)));
    ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, numBands, offset));

    offset = this.theChannel.position();
    dataBuff = ByteBuffer.allocateDirect(stripOffsets.length * INTEGER_SIZEOF);
    for (int stripOffset : stripOffsets) {
      dataBuff.putInt(stripOffset);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);
    ifds.add(new TiffIFDEntry(Tiff.Tag.STRIP_OFFSETS, Tiff.Type.LONG, stripOffsets.length, offset));
    ifds.add(new TiffIFDEntry(Tiff.Tag.ROWS_PER_STRIP, Tiff.Type.LONG, 1, 1));

    offset = this.theChannel.position();
    dataBuff.clear();
    // stripOffsets and stripCounts are same length by design; can reuse the ByteBuffer...
    for (int stripCount : stripCounts) {
      dataBuff.putInt(stripCount);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);
    ifds.add(
        new TiffIFDEntry(Tiff.Tag.STRIP_BYTE_COUNTS, Tiff.Type.LONG, stripCounts.length, offset));

    this.appendGeoTiff(ifds, params);

    this.writeIFDs(ifds);
  }
  private void writeGrayscaleImage(BufferedImage image, AVList params) throws IOException {
    int type = image.getType();

    int bitsPerSample =
        (BufferedImage.TYPE_USHORT_GRAY == type)
            ? Tiff.BitsPerSample.MONOCHROME_UINT16
            : Tiff.BitsPerSample.MONOCHROME_UINT8;

    int numBands = image.getSampleModel().getNumBands();
    // well, numBands for GrayScale images must be 1

    int bytesPerSample = numBands * bitsPerSample / Byte.SIZE;

    this.writeTiffHeader();

    // write the image data...
    int numRows = image.getHeight();
    int numCols = image.getWidth();
    int[] stripCounts = new int[numRows];
    int[] stripOffsets = new int[numRows];
    ByteBuffer dataBuff = ByteBuffer.allocateDirect(numCols * bytesPerSample);
    Raster rast = image.getRaster();

    for (int i = 0; i < numRows; i++) {
      stripOffsets[i] = (int) this.theChannel.position();
      stripCounts[i] = numCols * bytesPerSample;
      int[] rowData = rast.getPixels(0, i, image.getWidth(), 1, (int[]) null);
      dataBuff.clear();

      if (BufferedImage.TYPE_USHORT_GRAY == type) {
        for (int j = 0; j < numCols * numBands; j++) {
          this.putUnsignedShort(dataBuff, rowData[j]);
        }
      } else if (BufferedImage.TYPE_BYTE_GRAY == type) {
        for (int j = 0; j < numCols * numBands; j++) {
          this.putUnsignedByte(dataBuff, rowData[j]);
        }
      }
      dataBuff.flip();
      this.theChannel.write(dataBuff);
    }

    // write out values for the tiff tags and build up the IFD. These are supposed to be sorted; for
    // now
    // do this manually here.
    ArrayList<TiffIFDEntry> ifds = new ArrayList<TiffIFDEntry>(10);

    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_WIDTH, Tiff.Type.LONG, 1, numCols));
    ifds.add(new TiffIFDEntry(Tiff.Tag.IMAGE_LENGTH, Tiff.Type.LONG, 1, numRows));
    ifds.add(new TiffIFDEntry(Tiff.Tag.BITS_PER_SAMPLE, Tiff.Type.SHORT, 1, bitsPerSample));
    ifds.add(new TiffIFDEntry(Tiff.Tag.COMPRESSION, Tiff.Type.LONG, 1, Tiff.Compression.NONE));
    ifds.add(
        new TiffIFDEntry(
            Tiff.Tag.PHOTO_INTERPRETATION,
            Tiff.Type.SHORT,
            1,
            Tiff.Photometric.Grayscale_BlackIsZero));
    ifds.add(
        new TiffIFDEntry(Tiff.Tag.SAMPLE_FORMAT, Tiff.Type.SHORT, 1, Tiff.SampleFormat.UNSIGNED));

    long offset = this.theChannel.position();
    dataBuff = ByteBuffer.allocateDirect(stripOffsets.length * INTEGER_SIZEOF);
    for (int stripOffset : stripOffsets) {
      dataBuff.putInt(stripOffset);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);
    ifds.add(new TiffIFDEntry(Tiff.Tag.STRIP_OFFSETS, Tiff.Type.LONG, stripOffsets.length, offset));

    ifds.add(new TiffIFDEntry(Tiff.Tag.SAMPLES_PER_PIXEL, Tiff.Type.SHORT, 1, numBands));
    ifds.add(new TiffIFDEntry(Tiff.Tag.ROWS_PER_STRIP, Tiff.Type.LONG, 1, 1));

    offset = this.theChannel.position();
    dataBuff.clear(); // stripOffsets and stripCounts are same length by design; can reuse the
    // ByteBuffer...

    for (int stripCount : stripCounts) {
      dataBuff.putInt(stripCount);
    }
    dataBuff.flip();
    this.theChannel.write(dataBuff);
    ifds.add(
        new TiffIFDEntry(Tiff.Tag.STRIP_BYTE_COUNTS, Tiff.Type.LONG, stripCounts.length, offset));

    this.appendGeoTiff(ifds, params);

    this.writeIFDs(ifds);
  }
  private void appendGeoTiff(ArrayList<TiffIFDEntry> ifds, AVList params)
      throws IOException, IllegalArgumentException {
    if (null == params || 0 == params.getEntries().size()) {
      String reason = Logging.getMessage("nullValue.AVListIsNull");
      Logging.logger().finest(Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason));
      return;
    }

    long offset = this.theChannel.position();

    if (params.hasKey(AVKey.DISPLAY_NAME)) {
      String value = params.getStringValue(AVKey.DISPLAY_NAME);
      if (null != value && 0 < value.trim().length()) {
        offset = this.theChannel.position();
        byte[] bytes = value.trim().getBytes();
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(new TiffIFDEntry(Tiff.Tag.DOCUMENT_NAME, Tiff.Type.ASCII, bytes.length, offset));
      }
    }

    if (params.hasKey(AVKey.DESCRIPTION)) {
      String value = params.getStringValue(AVKey.DESCRIPTION);
      if (null != value && 0 < value.trim().length()) {
        offset = this.theChannel.position();
        byte[] bytes = value.trim().getBytes();
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(
            new TiffIFDEntry(Tiff.Tag.IMAGE_DESCRIPTION, Tiff.Type.ASCII, bytes.length, offset));
      }
    }

    if (params.hasKey(AVKey.VERSION)) {
      String value = params.getStringValue(AVKey.VERSION);
      if (null != value && 0 < value.trim().length()) {
        offset = this.theChannel.position();
        byte[] bytes = value.trim().getBytes();
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(
            new TiffIFDEntry(Tiff.Tag.SOFTWARE_VERSION, Tiff.Type.ASCII, bytes.length, offset));
      }
    }

    if (params.hasKey(AVKey.DATE_TIME)) {
      String value = params.getStringValue(AVKey.DATE_TIME);
      if (null != value && 0 < value.trim().length()) {
        offset = this.theChannel.position();
        byte[] bytes = value.getBytes();
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(new TiffIFDEntry(Tiff.Tag.DATE_TIME, Tiff.Type.ASCII, bytes.length, offset));
      }
    }

    if (params.hasKey(AVKey.SECTOR)) {
      if (params.hasKey(AVKey.PIXEL_WIDTH) && params.hasKey(AVKey.PIXEL_HEIGHT)) {
        offset = this.theChannel.position();
        double[] values =
            new double[] {
              (Double) params.getValue(AVKey.PIXEL_WIDTH),
              (Double) params.getValue(AVKey.PIXEL_HEIGHT),
              isElevation(params) ? 1d : 0d
            };
        byte[] bytes = this.getBytes(values);
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(
            new TiffIFDEntry(
                GeoTiff.Tag.MODEL_PIXELSCALE, Tiff.Type.DOUBLE, values.length, offset));
      }

      if (params.hasKey(AVKey.WIDTH) && params.hasKey(AVKey.HEIGHT)) {
        offset = this.theChannel.position();

        double w = (Integer) params.getValue(AVKey.WIDTH);
        double h = (Integer) params.getValue(AVKey.HEIGHT);

        Sector sec = (Sector) params.getValue(AVKey.SECTOR);

        double[] values =
            new double[] { // i ,  j, k=0, x, y, z=0
              0d,
              0d,
              0d,
              sec.getMinLongitude().degrees,
              sec.getMaxLatitude().degrees,
              0d,
              w - 1,
              0d,
              0d,
              sec.getMaxLongitude().degrees,
              sec.getMaxLatitude().degrees,
              0d,
              w - 1,
              h - 1,
              0d,
              sec.getMaxLongitude().degrees,
              sec.getMinLatitude().degrees,
              0d,
              0d,
              h - 1,
              0d,
              sec.getMinLongitude().degrees,
              sec.getMinLatitude().degrees,
              0d,
            };

        byte[] bytes = this.getBytes(values);
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(
            new TiffIFDEntry(GeoTiff.Tag.MODEL_TIEPOINT, Tiff.Type.DOUBLE, values.length, offset));
      }

      // Tiff.Tag.MODEL_TRANSFORMATION excludes Tiff.Tag.MODEL_TIEPOINT & Tiff.Tag.MODEL_PIXELSCALE

      if (params.hasKey(AVKey.MISSING_DATA_SIGNAL)
          || params.hasKey(AVKey.MISSING_DATA_REPLACEMENT)) {
        offset = this.theChannel.position();

        Object nodata =
            params.hasKey(AVKey.MISSING_DATA_SIGNAL)
                ? params.getValue(AVKey.MISSING_DATA_SIGNAL)
                : params.getValue(AVKey.MISSING_DATA_REPLACEMENT);

        String value = "" + nodata + "\0";
        byte[] bytes = value.getBytes();
        this.theChannel.write(ByteBuffer.wrap(bytes));
        ifds.add(new TiffIFDEntry(GeoTiff.Tag.GDAL_NODATA, Tiff.Type.ASCII, bytes.length, offset));
      }

      if (params.hasKey(AVKey.COORDINATE_SYSTEM)) {
        String cs = params.getStringValue(AVKey.COORDINATE_SYSTEM);

        if (AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(cs)) {
          if (isElevation(params)) this.writeGeographicElevationGeoKeys(ifds, params);
          else this.writeGeographicImageGeoKeys(ifds, params);
        } else if (AVKey.COORDINATE_SYSTEM_PROJECTED.equals(cs)) {
          String msg = Logging.getMessage("GeotiffWriter.FeatureNotImplementedd", cs);
          Logging.logger().severe(msg);
          throw new IllegalArgumentException(msg);
          // TODO extract PCS (Projection Coordinate System)
        } else {
          String msg = Logging.getMessage("GeotiffWriter.UnknownCoordinateSystem", cs);
          Logging.logger().severe(msg);
          throw new IllegalArgumentException(msg);
        }
      }
    }
  }
  private void writeGeographicElevationGeoKeys(ArrayList<TiffIFDEntry> ifds, AVList params)
      throws IOException {
    long offset = this.theChannel.position();

    if (isElevation(params) && isGeographic(params)) {
      int epsg = GeoTiff.GCS.WGS_84;

      if (params.hasKey(AVKey.PROJECTION_EPSG_CODE))
        epsg = (Integer) params.getValue(AVKey.PROJECTION_EPSG_CODE);

      int elevUnits = GeoTiff.Unit.Linear.Meter;
      if (params.hasKey(AVKey.ELEVATION_UNIT)) {
        if (AVKey.UNIT_FOOT.equals(params.getValue(AVKey.ELEVATION_UNIT)))
          elevUnits = GeoTiff.Unit.Linear.Foot;
      }

      int rasterType = GeoTiff.RasterType.RasterPixelIsArea;
      if (params.hasKey(AVKey.RASTER_PIXEL)
          && AVKey.RASTER_PIXEL_IS_POINT.equals(params.getValue(AVKey.RASTER_PIXEL)))
        rasterType = GeoTiff.RasterType.RasterPixelIsPoint;

      short[] values =
          new short[] {
            // GeoKeyDirectory header
            GeoTiff.GeoKeyHeader.KeyDirectoryVersion,
            GeoTiff.GeoKeyHeader.KeyRevision,
            GeoTiff.GeoKeyHeader.MinorRevision,
            0, // IMPORTANT!! we will update count below, after the array initialization
            // end of header -

            // geo keys array

            /* key 1 */
            GeoTiff.GeoKey.ModelType,
            0,
            1,
            GeoTiff.ModelType.Geographic,
            /* key 2 */
            // TODO: Replace GeoTiff.RasterType.RasterPixelIsPoint
            GeoTiff.GeoKey.RasterType,
            0,
            1,
            (short) (0xFFFF & rasterType),
            /* key 3 */
            GeoTiff.GeoKey.GeographicType,
            0,
            1,
            (short) (0xFFFF & epsg),
            /* key 4 */
            GeoTiff.GeoKey.GeogAngularUnits,
            0,
            1,
            GeoTiff.Unit.Angular.Angular_Degree,
            /* key 5 */
            GeoTiff.GeoKey.VerticalCSType,
            0,
            1,
            GeoTiff.VCS.WGS_84_ellipsoid,
            /* key 6 */
            GeoTiff.GeoKey.VerticalUnits,
            0,
            1,
            (short) (0xFFFF & elevUnits),
          };

      // IMPORTANT!! update count - number of geokeys
      values[3] = (short) (values.length / 4);

      byte[] bytes = this.getBytes(values);
      this.theChannel.write(ByteBuffer.wrap(bytes));
      ifds.add(
          new TiffIFDEntry(GeoTiff.Tag.GEO_KEY_DIRECTORY, Tiff.Type.SHORT, values.length, offset));
    }
  }