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));
}
}
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));
}
}
private static boolean isGeographic(AVList params) {
return (null != params
&& params.hasKey(AVKey.COORDINATE_SYSTEM)
&& AVKey.COORDINATE_SYSTEM_GEOGRAPHIC.equals(params.getValue(AVKey.COORDINATE_SYSTEM)));
}
private static boolean isProjected(AVList params) {
return (null != params
&& params.hasKey(AVKey.COORDINATE_SYSTEM)
&& AVKey.COORDINATE_SYSTEM_PROJECTED.equals(params.getValue(AVKey.COORDINATE_SYSTEM)));
}
private static boolean isImage(AVList params) {
return (null != params
&& params.hasKey(AVKey.PIXEL_FORMAT)
&& AVKey.IMAGE.equals(params.getValue(AVKey.PIXEL_FORMAT)));
}
private static boolean isElevation(AVList params) {
return (null != params
&& params.hasKey(AVKey.PIXEL_FORMAT)
&& AVKey.ELEVATION.equals(params.getValue(AVKey.PIXEL_FORMAT)));
}
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);
}
}
}
}
public void write(BufferedImage image, AVList params) throws IOException {
if (image == null) {
String msg = Logging.getMessage("nullValue.ImageSource");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (0 == image.getWidth() || 0 == image.getHeight()) {
String msg =
Logging.getMessage("generic.InvalidImageSize", image.getWidth(), image.getHeight());
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (null == params || 0 == params.getValues().size()) {
String reason = Logging.getMessage("nullValue.AVListIsNull");
Logging.logger().finest(Logging.getMessage("GeotiffWriter.GeoKeysMissing", reason));
params = new AVListImpl();
} else {
this.validateParameters(params, image.getWidth(), image.getHeight());
}
// how we proceed in part depends upon the image type...
int type = image.getType();
// handle CUSTOM type which comes from our GeoTiffreader (for now)
if (BufferedImage.TYPE_CUSTOM == type) {
int numColorComponents = 0, numComponents = 0, pixelSize = 0, dataType = 0, csType = 0;
boolean hasAlpha = false;
if (null != image.getColorModel()) {
ColorModel cm = image.getColorModel();
numColorComponents = cm.getNumColorComponents();
numComponents = cm.getNumComponents();
pixelSize = cm.getPixelSize();
hasAlpha = cm.hasAlpha();
ColorSpace cs = cm.getColorSpace();
if (null != cs) csType = cs.getType();
}
if (null != image.getSampleModel()) {
SampleModel sm = image.getSampleModel();
dataType = sm.getDataType();
}
if (dataType == DataBuffer.TYPE_FLOAT && pixelSize == Float.SIZE && numComponents == 1) {
type = BufferedImage_TYPE_ELEVATION_FLOAT32;
} else if (dataType == DataBuffer.TYPE_SHORT
&& pixelSize == Short.SIZE
&& numComponents == 1) {
type = BufferedImage_TYPE_ELEVATION_SHORT16;
} else if (ColorSpace.CS_GRAY == csType && pixelSize == Byte.SIZE) {
type = BufferedImage.TYPE_BYTE_GRAY;
} else if (dataType == DataBuffer.TYPE_USHORT
&& ColorSpace.CS_GRAY == csType
&& pixelSize == Short.SIZE) {
type = BufferedImage.TYPE_USHORT_GRAY;
} else if (ColorSpace.TYPE_RGB == csType
&& pixelSize == 3 * Byte.SIZE
&& numColorComponents == 3) {
type = BufferedImage.TYPE_3BYTE_BGR;
} else if (ColorSpace.TYPE_RGB == csType
&& hasAlpha
&& pixelSize == 4 * Byte.SIZE
&& numComponents == 4) {
type = BufferedImage.TYPE_4BYTE_ABGR;
}
}
switch (type) {
case BufferedImage.TYPE_3BYTE_BGR:
case BufferedImage.TYPE_4BYTE_ABGR:
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
case BufferedImage.TYPE_INT_RGB:
case BufferedImage.TYPE_INT_BGR:
case BufferedImage.TYPE_INT_ARGB:
case BufferedImage.TYPE_INT_ARGB_PRE:
{
this.writeColorImage(image, params);
}
break;
case BufferedImage.TYPE_USHORT_GRAY:
case BufferedImage.TYPE_BYTE_GRAY:
{
this.writeGrayscaleImage(image, params);
}
break;
case BufferedImage_TYPE_ELEVATION_SHORT16:
case BufferedImage_TYPE_ELEVATION_FLOAT32:
{
String msg = Logging.getMessage("GeotiffWriter.FeatureNotImplementedd", type);
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
// break;
case BufferedImage.TYPE_CUSTOM:
default:
{
ColorModel cm = image.getColorModel();
SampleModel sm = image.getSampleModel();
StringBuffer sb =
new StringBuffer(Logging.getMessage("GeotiffWriter.UnsupportedType", type));
sb.append("\n");
sb.append("NumBands=").append(sm.getNumBands()).append("\n");
sb.append("NumDataElements=").append(sm.getNumDataElements()).append("\n");
sb.append("NumColorComponents=").append(cm.getNumColorComponents()).append("\n");
sb.append("NumComponents=").append(cm.getNumComponents()).append("\n");
sb.append("PixelSize=").append(cm.getPixelSize()).append("\n");
sb.append("hasAlpha=").append(cm.hasAlpha());
String msg = sb.toString();
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
}
}