private void applyGeoCoding(TiffFileInfo info, TIFFImageMetadata metadata, Product product) {
if (info.containsField(GeoTIFFTagSet.TAG_MODEL_TIE_POINT)) {
double[] tiePoints = info.getField(GeoTIFFTagSet.TAG_MODEL_TIE_POINT).getAsDoubles();
boolean isGlobal = isGlobal(product, info);
// check if we have a global geographic lat/lon with lon from 0..360 instead of -180..180
final double deltaX = Math.ceil(360. / product.getSceneRasterWidth());
if (isGlobal && tiePoints.length == 6 && Math.abs(tiePoints[3]) < deltaX) {
// e.g. tiePoints[3] = -0.5, productWidth=722 --> we have a lon range of 361 which should
// start
// at or near -180 but not at zero
isGlobalShifted180 = true;
// subtract 180 from the longitudes
tiePoints[3] -= 180.0;
}
if (canCreateTiePointGeoCoding(tiePoints)) {
applyTiePointGeoCoding(info, tiePoints, product);
} else if (canCreateGcpGeoCoding(tiePoints)) {
applyGcpGeoCoding(info, tiePoints, product);
}
}
if (product.getGeoCoding() == null) {
try {
applyGeoCodingFromGeoTiff(metadata, product);
} catch (Exception ignored) {
}
}
}
private void addBandsToProduct(TiffFileInfo tiffInfo, Product product) throws IOException {
final ImageReadParam readParam = imageReader.getDefaultReadParam();
TIFFRenderedImage baseImage =
(TIFFRenderedImage) imageReader.readAsRenderedImage(FIRST_IMAGE, readParam);
SampleModel sampleModel = baseImage.getSampleModel();
final int numBands = sampleModel.getNumBands();
final int productDataType = ImageManager.getProductDataType(sampleModel.getDataType());
bandMap = new HashMap<>(numBands);
for (int i = 0; i < numBands; i++) {
final String bandName = String.format("band_%d", i + 1);
final Band band = product.addBand(bandName, productDataType);
if (tiffInfo.containsField(BaselineTIFFTagSet.TAG_COLOR_MAP)
&& baseImage.getColorModel() instanceof IndexColorModel) {
band.setImageInfo(createIndexedImageInfo(product, baseImage, band));
}
bandMap.put(band, i);
}
}
Product readGeoTIFFProduct(final ImageInputStream stream, final File inputFile)
throws IOException {
Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(stream);
while (imageReaders.hasNext()) {
final ImageReader reader = imageReaders.next();
if (reader instanceof TIFFImageReader) {
imageReader = (TIFFImageReader) reader;
break;
}
}
if (imageReader == null) {
throw new IOException("GeoTiff imageReader not found");
}
imageReader.setInput(stream);
Product product = null;
final TIFFImageMetadata imageMetadata =
(TIFFImageMetadata) imageReader.getImageMetadata(FIRST_IMAGE);
final TiffFileInfo tiffInfo = new TiffFileInfo(imageMetadata.getRootIFD());
final TIFFField field = tiffInfo.getField(Utils.PRIVATE_BEAM_TIFF_TAG_NUMBER);
if (field != null && field.getType() == TIFFTag.TIFF_ASCII) {
final String s = field.getAsString(0).trim();
if (s.contains("<Dimap_Document")) { // with DIMAP header
InputStream is = null;
try {
final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
final DocumentBuilder builder = factory.newDocumentBuilder();
is = new ByteArrayInputStream(s.getBytes());
final Document document = new DOMBuilder().build(builder.parse(is));
product = DimapProductHelpers.createProduct(document);
removeGeoCodingAndTiePointGrids(product);
initBandsMap(product);
} catch (ParserConfigurationException | SAXException ignore) {
// ignore if it can not be read
} finally {
if (is != null) {
is.close();
}
}
}
}
if (product == null) { // without DIMAP header
final String productName;
if (tiffInfo.containsField(BaselineTIFFTagSet.TAG_IMAGE_DESCRIPTION)) {
final TIFFField field1 = tiffInfo.getField(BaselineTIFFTagSet.TAG_IMAGE_DESCRIPTION);
productName = field1.getAsString(0);
} else if (inputFile != null) {
productName = FileUtils.getFilenameWithoutExtension(inputFile);
} else {
productName = "geotiff";
}
final String productType = getReaderPlugIn().getFormatNames()[0];
final int width = imageReader.getWidth(FIRST_IMAGE);
final int height = imageReader.getHeight(FIRST_IMAGE);
product = new Product(productName, productType, width, height, this);
addBandsToProduct(tiffInfo, product);
}
if (tiffInfo.isGeotiff()) {
applyGeoCoding(tiffInfo, imageMetadata, product);
}
TiffTagToMetadataConverter.addTiffTagsToMetadata(
imageMetadata, tiffInfo, product.getMetadataRoot());
if (inputFile != null) {
product.setFileLocation(inputFile);
}
setPreferredTiling(product);
return product;
}
