public int countImagesInSector(Sector sector, int levelNumber) {
    if (sector == null) {
      String msg = Logging.getMessage("nullValue.SectorIsNull");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    Level targetLevel = this.levels.getLastLevel();
    if (levelNumber >= 0) {
      for (int i = levelNumber; i < this.getLevels().getLastLevel().getLevelNumber(); i++) {
        if (this.levels.isLevelEmpty(i)) continue;

        targetLevel = this.levels.getLevel(i);
        break;
      }
    }

    // Collect all the tiles intersecting the input sector.
    LatLon delta = targetLevel.getTileDelta();
    Angle latOrigin = this.levels.getTileOrigin().getLatitude();
    Angle lonOrigin = this.levels.getTileOrigin().getLongitude();
    final int nwRow = Tile.computeRow(delta.getLatitude(), sector.getMaxLatitude(), latOrigin);
    final int nwCol = Tile.computeColumn(delta.getLongitude(), sector.getMinLongitude(), lonOrigin);
    final int seRow = Tile.computeRow(delta.getLatitude(), sector.getMinLatitude(), latOrigin);
    final int seCol = Tile.computeColumn(delta.getLongitude(), sector.getMaxLongitude(), lonOrigin);

    int numRows = nwRow - seRow + 1;
    int numCols = seCol - nwCol + 1;

    return numRows * numCols;
  }
  private MercatorTextureTile[][] getTilesInSector(Sector sector, int levelNumber) {
    if (sector == null) {
      String msg = Logging.getMessage("nullValue.SectorIsNull");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    Level targetLevel = this.levels.getLastLevel();
    if (levelNumber >= 0) {
      for (int i = levelNumber; i < this.getLevels().getLastLevel().getLevelNumber(); i++) {
        if (this.levels.isLevelEmpty(i)) continue;

        targetLevel = this.levels.getLevel(i);
        break;
      }
    }

    // Collect all the tiles intersecting the input sector.
    LatLon delta = targetLevel.getTileDelta();
    Angle latOrigin = this.levels.getTileOrigin().getLatitude();
    Angle lonOrigin = this.levels.getTileOrigin().getLongitude();
    final int nwRow = Tile.computeRow(delta.getLatitude(), sector.getMaxLatitude(), latOrigin);
    final int nwCol = Tile.computeColumn(delta.getLongitude(), sector.getMinLongitude(), lonOrigin);
    final int seRow = Tile.computeRow(delta.getLatitude(), sector.getMinLatitude(), latOrigin);
    final int seCol = Tile.computeColumn(delta.getLongitude(), sector.getMaxLongitude(), lonOrigin);

    int numRows = nwRow - seRow + 1;
    int numCols = seCol - nwCol + 1;
    MercatorTextureTile[][] sectorTiles = new MercatorTextureTile[numRows][numCols];

    for (int row = nwRow; row >= seRow; row--) {
      for (int col = nwCol; col <= seCol; col++) {
        TileKey key =
            new TileKey(targetLevel.getLevelNumber(), row, col, targetLevel.getCacheName());
        Sector tileSector = this.levels.computeSectorForKey(key);
        MercatorSector mSector = MercatorSector.fromSector(tileSector); // TODO: check
        sectorTiles[nwRow - row][col - nwCol] =
            new MercatorTextureTile(mSector, targetLevel, row, col);
      }
    }

    return sectorTiles;
  }
    public URL getURL(Tile tile, String altImageFormat) throws MalformedURLException {
      StringBuffer sb;
      if (this.URLTemplate == null) {
        sb = new StringBuffer(WWXML.fixGetMapString(tile.getLevel().getService()));

        if (!sb.toString().toLowerCase().contains("service=wms")) sb.append("service=WMS");
        sb.append("&request=GetMap");
        sb.append("&version=").append(this.wmsVersion);
        sb.append(this.crs);
        sb.append("&layers=").append(this.layerNames);
        sb.append("&styles=").append(this.styleNames != null ? this.styleNames : "");
        sb.append("&transparent=TRUE");
        if (this.backgroundColor != null) sb.append("&bgcolor=").append(this.backgroundColor);

        this.URLTemplate = sb.toString();
      } else {
        sb = new StringBuffer(this.URLTemplate);
      }

      String format = (altImageFormat != null) ? altImageFormat : this.imageFormat;
      if (null != format) sb.append("&format=").append(format);

      sb.append("&width=").append(tile.getWidth());
      sb.append("&height=").append(tile.getHeight());

      Sector s = tile.getSector();
      sb.append("&bbox=");
      sb.append(s.getMinLongitude().getDegrees());
      sb.append(",");
      sb.append(s.getMinLatitude().getDegrees());
      sb.append(",");
      sb.append(s.getMaxLongitude().getDegrees());
      sb.append(",");
      sb.append(s.getMaxLatitude().getDegrees());
      //            sb.append("&"); // terminate the query string

      return new java.net.URL(sb.toString().replace(" ", "%20"));
    }
  public BufferedImage composeImageForSector(
      Sector sector,
      int imageWidth,
      int imageHeight,
      int levelNumber,
      String mimeType,
      boolean abortOnError,
      BufferedImage image) {
    if (sector == null) {
      String message = Logging.getMessage("nullValue.SectorIsNull");
      Logging.logger().severe(message);
      throw new IllegalStateException(message);
    }

    if (levelNumber < 0) {
      levelNumber = this.levels.getLastLevel().getLevelNumber();
    } else if (levelNumber > this.levels.getLastLevel().getLevelNumber()) {
      Logging.logger()
          .warning(
              Logging.getMessage(
                  "generic.LevelRequestedGreaterThanMaxLevel",
                  levelNumber,
                  this.levels.getLastLevel().getLevelNumber()));
      levelNumber = this.levels.getLastLevel().getLevelNumber();
    }

    MercatorTextureTile[][] tiles = this.getTilesInSector(sector, levelNumber);

    if (tiles.length == 0 || tiles[0].length == 0) {
      Logging.logger().severe(Logging.getMessage("layers.TiledImageLayer.NoImagesAvailable"));
      return null;
    }

    if (image == null)
      image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);

    Graphics2D g = image.createGraphics();

    for (MercatorTextureTile[] row : tiles) {
      for (MercatorTextureTile tile : row) {
        if (tile == null) continue;

        BufferedImage tileImage;
        try {
          tileImage = this.getImage(tile, mimeType);

          double sh =
              ((double) imageHeight / (double) tileImage.getHeight())
                  * (tile.getSector().getDeltaLat().divide(sector.getDeltaLat()));
          double sw =
              ((double) imageWidth / (double) tileImage.getWidth())
                  * (tile.getSector().getDeltaLon().divide(sector.getDeltaLon()));

          double dh =
              imageHeight
                  * (-tile.getSector().getMaxLatitude().subtract(sector.getMaxLatitude()).degrees
                      / sector.getDeltaLat().degrees);
          double dw =
              imageWidth
                  * (tile.getSector().getMinLongitude().subtract(sector.getMinLongitude()).degrees
                      / sector.getDeltaLon().degrees);

          AffineTransform txf = g.getTransform();
          g.translate(dw, dh);
          g.scale(sw, sh);
          g.drawImage(tileImage, 0, 0, null);
          g.setTransform(txf);
        } catch (Exception e) {
          if (abortOnError) throw new RuntimeException(e);

          String message =
              Logging.getMessage("generic.ExceptionWhileRequestingImage", tile.getPath());
          Logging.logger().log(java.util.logging.Level.WARNING, message, e);
        }
      }
    }

    return image;
  }
Example #5
0
  public static DataRaster wrapAsGeoreferencedRaster(BufferedImage image, AVList params) {
    if (null == image) {
      String message = Logging.getMessage("nullValue.ImageIsNull");
      Logging.logger().severe(message);
      throw new IllegalArgumentException(message);
    }

    if (null == params) {
      String msg = Logging.getMessage("nullValue.AVListIsNull");
      Logging.logger().finest(msg);
      throw new IllegalArgumentException(msg);
    }

    if (params.hasKey(AVKey.WIDTH)) {
      int width = (Integer) params.getValue(AVKey.WIDTH);
      if (width != image.getWidth()) {
        String msg =
            Logging.getMessage("generic.InvalidWidth", "" + width + "!=" + image.getWidth());
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    if (params.hasKey(AVKey.HEIGHT)) {
      int height = (Integer) params.getValue(AVKey.HEIGHT);
      if (height != image.getHeight()) {
        String msg =
            Logging.getMessage("generic.InvalidHeight", "" + height + "!=" + image.getHeight());
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    if (!params.hasKey(AVKey.SECTOR)) {
      String msg = Logging.getMessage("generic.MissingRequiredParameter", AVKey.SECTOR);
      Logging.logger().finest(msg);
      throw new IllegalArgumentException(msg);
    }

    Sector sector = (Sector) params.getValue(AVKey.SECTOR);
    if (null == sector) {
      String msg = Logging.getMessage("nullValue.SectorIsNull");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (!params.hasKey(AVKey.COORDINATE_SYSTEM)) {
      // assume Geodetic Coordinate System
      params.setValue(AVKey.COORDINATE_SYSTEM, AVKey.COORDINATE_SYSTEM_GEOGRAPHIC);
    }

    String cs = params.getStringValue(AVKey.COORDINATE_SYSTEM);
    if (!params.hasKey(AVKey.PROJECTION_EPSG_CODE)) {
      if (AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(cs)) {
        // assume WGS84
        params.setValue(AVKey.PROJECTION_EPSG_CODE, GeoTiff.GCS.WGS_84);
      } else {
        String msg =
            Logging.getMessage("generic.MissingRequiredParameter", AVKey.PROJECTION_EPSG_CODE);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    // if PIXEL_WIDTH is specified, we are not overriding it because UTM images
    // will have different pixel size
    if (!params.hasKey(AVKey.PIXEL_WIDTH)) {
      if (AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(cs)) {
        double pixelWidth = sector.getDeltaLonDegrees() / (double) image.getWidth();
        params.setValue(AVKey.PIXEL_WIDTH, pixelWidth);
      } else {
        String msg = Logging.getMessage("generic.MissingRequiredParameter", AVKey.PIXEL_WIDTH);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    // if PIXEL_HEIGHT is specified, we are not overriding it
    // because UTM images will have different pixel size
    if (!params.hasKey(AVKey.PIXEL_HEIGHT)) {
      if (AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(cs)) {
        double pixelHeight = sector.getDeltaLatDegrees() / (double) image.getHeight();
        params.setValue(AVKey.PIXEL_HEIGHT, pixelHeight);
      } else {
        String msg = Logging.getMessage("generic.MissingRequiredParameter", AVKey.PIXEL_HEIGHT);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    if (!params.hasKey(AVKey.PIXEL_FORMAT)) {
      params.setValue(AVKey.PIXEL_FORMAT, AVKey.IMAGE);
    } else if (!AVKey.IMAGE.equals(params.getStringValue(AVKey.PIXEL_FORMAT))) {
      String msg =
          Logging.getMessage(
              "generic.UnknownValueForKey",
              params.getStringValue(AVKey.PIXEL_FORMAT),
              AVKey.PIXEL_FORMAT);
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (!params.hasKey(AVKey.ORIGIN) && AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(cs)) {
      // set UpperLeft corner as the origin, if not specified
      LatLon origin = new LatLon(sector.getMaxLatitude(), sector.getMinLongitude());
      params.setValue(AVKey.ORIGIN, origin);
    }

    if (!params.hasKey(AVKey.DATE_TIME)) {
      // add NUL (\0) termination as required by TIFF v6 spec (20 bytes length)
      String timestamp = String.format("%1$tY:%1$tm:%1$td %tT\0", Calendar.getInstance());
      params.setValue(AVKey.DATE_TIME, timestamp);
    }

    if (!params.hasKey(AVKey.VERSION)) {
      params.setValue(AVKey.VERSION, Version.getVersion());
    }

    boolean hasAlpha = (null != image.getColorModel() && image.getColorModel().hasAlpha());
    params.setValue(AVKey.RASTER_HAS_ALPHA, hasAlpha);

    return new BufferedImageRaster(sector, image, params);
  }
  protected void validateParameters(AVList list, int srcWidth, int srcHeight)
      throws IllegalArgumentException {
    if (null == list || 0 == list.getValues().size()) {
      String reason = Logging.getMessage("nullValue.AVListIsNull");
      String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason);
      Logging.logger().finest(msg);
      throw new IllegalArgumentException(msg);
    }

    if (!(srcWidth > 0 && srcHeight > 0)) {
      String msg = Logging.getMessage("generic.InvalidImageSize", srcWidth, srcHeight);
      Logging.logger().finest(msg);
      throw new IllegalArgumentException(msg);
    }

    if (list.hasKey(AVKey.WIDTH)) {
      int width = (Integer) list.getValue(AVKey.WIDTH);
      if (width != srcWidth) {
        String msg = Logging.getMessage("GeotiffWriter.ImageWidthMismatch", width, srcWidth);
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    } else list.setValue(AVKey.WIDTH, srcWidth);

    if (list.hasKey(AVKey.HEIGHT)) {
      int height = (Integer) list.getValue(AVKey.HEIGHT);
      if (height != srcHeight) {
        String msg = Logging.getMessage("GeotiffWriter.ImageHeightMismatch", height, srcHeight);
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    } else list.setValue(AVKey.HEIGHT, srcHeight);

    Sector sector = null;

    if (list.hasKey(AVKey.SECTOR)) sector = (Sector) list.getValue(AVKey.SECTOR);

    if (null == sector) {
      String msg = Logging.getMessage("GeotiffWriter.NoSectorSpecified");
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (!list.hasKey(AVKey.COORDINATE_SYSTEM)) {
      String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.COORDINATE_SYSTEM);
      Logging.logger().finest(msg);
      //            throw new IllegalArgumentException(msg);

      // assume Geodetic Coordinate System
      list.setValue(AVKey.COORDINATE_SYSTEM, AVKey.COORDINATE_SYSTEM_GEOGRAPHIC);
    }

    if (!list.hasKey(AVKey.PROJECTION_EPSG_CODE)) {
      if (isGeographic(list)) {
        // assume WGS84
        list.setValue(AVKey.PROJECTION_EPSG_CODE, GeoTiff.GCS.WGS_84);
      } else {
        String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PROJECTION_EPSG_CODE);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    // if PIXEL_WIDTH is specified, we are not overriding it because UTM images
    // will have different pixel size
    if (!list.hasKey(AVKey.PIXEL_WIDTH)) {
      if (isGeographic(list)) {
        double pixelWidth = sector.getDeltaLonDegrees() / (double) srcWidth;
        list.setValue(AVKey.PIXEL_WIDTH, pixelWidth);
      } else {
        String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_WIDTH);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    // if PIXEL_HEIGHT is specified, we are not overriding it
    // because UTM images will have different pixel size
    if (!list.hasKey(AVKey.PIXEL_HEIGHT)) {
      if (isGeographic(list)) {
        double pixelHeight = sector.getDeltaLatDegrees() / (double) srcHeight;
        list.setValue(AVKey.PIXEL_HEIGHT, pixelHeight);
      } else {
        String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_HEIGHT);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    if (!list.hasKey(AVKey.PIXEL_FORMAT)) {
      String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.PIXEL_FORMAT);
      Logging.logger().finest(msg);
      throw new IllegalArgumentException(msg);
    } else {
      String pixelFormat = list.getStringValue(AVKey.PIXEL_FORMAT);
      if (!AVKey.ELEVATION.equals(pixelFormat) && !AVKey.IMAGE.equals(pixelFormat)) {
        String msg =
            Logging.getMessage("Geotiff.UnknownGeoKeyValue", pixelFormat, AVKey.PIXEL_FORMAT);
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    // validate elevation parameters
    if (AVKey.ELEVATION.equals(list.getValue(AVKey.PIXEL_FORMAT))) {
      if (!list.hasKey(AVKey.DATA_TYPE)) {
        String msg = Logging.getMessage("GeotiffWriter.GeoKeysMissing", AVKey.DATA_TYPE);
        Logging.logger().finest(msg);
        throw new IllegalArgumentException(msg);
      }

      String type = list.getStringValue(AVKey.DATA_TYPE);
      if (!AVKey.FLOAT32.equals(type) && !AVKey.INT16.equals(type)) {
        String msg = Logging.getMessage("Geotiff.UnknownGeoKeyValue", type, AVKey.DATA_TYPE);
        Logging.logger().severe(msg);
        throw new IllegalArgumentException(msg);
      }
    }

    if (!list.hasKey(AVKey.ORIGIN)) {
      // set UpperLeft corner as the origin, if not specified
      LatLon origin = new LatLon(sector.getMaxLatitude(), sector.getMinLongitude());
      list.setValue(AVKey.ORIGIN, origin);
    }

    if (list.hasKey(AVKey.BYTE_ORDER)
        && !AVKey.BIG_ENDIAN.equals(list.getStringValue(AVKey.BYTE_ORDER))) {
      String msg =
          Logging.getMessage(
              "generic.UnrecognizedByteOrder", list.getStringValue(AVKey.BYTE_ORDER));
      Logging.logger().severe(msg);
      throw new IllegalArgumentException(msg);
    }

    if (!list.hasKey(AVKey.DATE_TIME)) {
      // add NUL (\0) termination as required by TIFF v6 spec (20 bytes length)
      String timestamp = String.format("%1$tY:%1$tm:%1$td %tT\0", Calendar.getInstance());
      list.setValue(AVKey.DATE_TIME, timestamp);
    }

    if (!list.hasKey(AVKey.VERSION)) {
      list.setValue(AVKey.VERSION, Version.getVersion());
    }
  }
  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);
        }
      }
    }
  }