private static void addVector(
final String name,
final MetadataElement orbitVectorListElem,
final MetadataElement orbitElem,
final int num) {
final MetadataElement orbitVectorElem = new MetadataElement(name + num);
final MetadataElement positionElem = orbitElem.getElement("position");
final MetadataElement velocityElem = orbitElem.getElement("velocity");
orbitVectorElem.setAttributeUTC(
AbstractMetadata.orbit_vector_time,
ReaderUtils.getTime(orbitElem, "time", standardDateFormat));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_x_pos, positionElem.getAttributeDouble("x", 0));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_y_pos, positionElem.getAttributeDouble("y", 0));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_z_pos, positionElem.getAttributeDouble("z", 0));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_x_vel, velocityElem.getAttributeDouble("x", 0));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_y_vel, velocityElem.getAttributeDouble("y", 0));
orbitVectorElem.setAttributeDouble(
AbstractMetadata.orbit_vector_z_vel, velocityElem.getAttributeDouble("z", 0));
orbitVectorListElem.addElement(orbitVectorElem);
}
private static void addSRGRCoefficients(
final MetadataElement absRoot, final MetadataElement coordinateConversion) {
if (coordinateConversion == null) return;
final MetadataElement coordinateConversionList =
coordinateConversion.getElement("coordinateConversionList");
if (coordinateConversionList == null) return;
final MetadataElement srgrCoefficientsElem =
absRoot.getElement(AbstractMetadata.srgr_coefficients);
int listCnt = 1;
for (MetadataElement elem : coordinateConversionList.getElements()) {
final MetadataElement srgrListElem =
new MetadataElement(AbstractMetadata.srgr_coef_list + '.' + listCnt);
srgrCoefficientsElem.addElement(srgrListElem);
++listCnt;
final ProductData.UTC utcTime = ReaderUtils.getTime(elem, "azimuthTime", standardDateFormat);
srgrListElem.setAttributeUTC(AbstractMetadata.srgr_coef_time, utcTime);
final double grOrigin = elem.getAttributeDouble("gr0", 0);
AbstractMetadata.addAbstractedAttribute(
srgrListElem,
AbstractMetadata.ground_range_origin,
ProductData.TYPE_FLOAT64,
"m",
"Ground Range Origin");
AbstractMetadata.setAttribute(srgrListElem, AbstractMetadata.ground_range_origin, grOrigin);
final String coeffStr =
elem.getElement("grsrCoefficients").getAttributeString("grsrCoefficients", "");
if (!coeffStr.isEmpty()) {
final StringTokenizer st = new StringTokenizer(coeffStr);
int cnt = 1;
while (st.hasMoreTokens()) {
final double coefValue = Double.parseDouble(st.nextToken());
final MetadataElement coefElem =
new MetadataElement(AbstractMetadata.coefficient + '.' + cnt);
srgrListElem.addElement(coefElem);
++cnt;
AbstractMetadata.addAbstractedAttribute(
coefElem,
AbstractMetadata.srgr_coef,
ProductData.TYPE_FLOAT64,
"",
"SRGR Coefficient");
AbstractMetadata.setAttribute(coefElem, AbstractMetadata.srgr_coef, coefValue);
}
}
}
}
private static void addDopplerCentroidCoefficients(
final MetadataElement absRoot, final MetadataElement dopplerCentroid) {
if (dopplerCentroid == null) return;
final MetadataElement dcEstimateList = dopplerCentroid.getElement("dcEstimateList");
if (dcEstimateList == null) return;
final MetadataElement dopplerCentroidCoefficientsElem =
absRoot.getElement(AbstractMetadata.dop_coefficients);
int listCnt = 1;
for (MetadataElement elem : dcEstimateList.getElements()) {
final MetadataElement dopplerListElem =
new MetadataElement(AbstractMetadata.dop_coef_list + '.' + listCnt);
dopplerCentroidCoefficientsElem.addElement(dopplerListElem);
++listCnt;
final ProductData.UTC utcTime = ReaderUtils.getTime(elem, "azimuthTime", standardDateFormat);
dopplerListElem.setAttributeUTC(AbstractMetadata.dop_coef_time, utcTime);
final double refTime = elem.getAttributeDouble("t0", 0) * 1e9; // s to ns
AbstractMetadata.addAbstractedAttribute(
dopplerListElem,
AbstractMetadata.slant_range_time,
ProductData.TYPE_FLOAT64,
"ns",
"Slant Range Time");
AbstractMetadata.setAttribute(dopplerListElem, AbstractMetadata.slant_range_time, refTime);
final String coeffStr =
elem.getElement("geometryDcPolynomial").getAttributeString("geometryDcPolynomial", "");
if (!coeffStr.isEmpty()) {
final StringTokenizer st = new StringTokenizer(coeffStr);
int cnt = 1;
while (st.hasMoreTokens()) {
final double coefValue = Double.parseDouble(st.nextToken());
final MetadataElement coefElem =
new MetadataElement(AbstractMetadata.coefficient + '.' + cnt);
dopplerListElem.addElement(coefElem);
++cnt;
AbstractMetadata.addAbstractedAttribute(
coefElem,
AbstractMetadata.dop_coef,
ProductData.TYPE_FLOAT64,
"",
"Doppler Centroid Coefficient");
AbstractMetadata.setAttribute(coefElem, AbstractMetadata.dop_coef, coefValue);
}
}
}
}
private double getBandTerrainHeight(final MetadataElement prodElem) {
final MetadataElement generalAnnotation = prodElem.getElement("generalAnnotation");
final MetadataElement terrainHeightList = generalAnnotation.getElement("terrainHeightList");
double heightSum = 0.0;
final MetadataElement[] heightList = terrainHeightList.getElements();
int cnt = 0;
for (MetadataElement terrainHeight : heightList) {
heightSum += terrainHeight.getAttributeDouble("value");
++cnt;
}
return heightSum / cnt;
}
private void addTiePointGrids(final Band band, final String imgXMLName, final String tpgPrefix) {
// System.out.println("S1L1Dir.addTiePointGrids: band = " + band.getName() + " imgXMLName = " +
// imgXMLName + " tpgPrefix = " + tpgPrefix);
final Product product = band.getProduct();
String pre = "";
if (!tpgPrefix.isEmpty()) pre = tpgPrefix + '_';
final TiePointGrid existingLatTPG = product.getTiePointGrid(pre + OperatorUtils.TPG_LATITUDE);
final TiePointGrid existingLonTPG = product.getTiePointGrid(pre + OperatorUtils.TPG_LONGITUDE);
if (existingLatTPG != null && existingLonTPG != null) {
// System.out.println("for band = " + band.getName() + ", use existing TPG");
// reuse geocoding
final TiePointGeoCoding tpGeoCoding =
new TiePointGeoCoding(existingLatTPG, existingLonTPG, Datum.WGS_84);
band.setGeoCoding(tpGeoCoding);
return;
}
// System.out.println("add new TPG for band = " + band.getName());
final String annotation = FileUtils.exchangeExtension(imgXMLName, ".xml");
final MetadataElement origProdRoot = AbstractMetadata.getOriginalProductMetadata(product);
final MetadataElement annotationElem = origProdRoot.getElement("annotation");
final MetadataElement imgElem = annotationElem.getElement(annotation);
final MetadataElement productElem = imgElem.getElement("product");
final MetadataElement geolocationGrid = productElem.getElement("geolocationGrid");
final MetadataElement geolocationGridPointList =
geolocationGrid.getElement("geolocationGridPointList");
final MetadataElement[] geoGrid = geolocationGridPointList.getElements();
// System.out.println("geoGrid.length = " + geoGrid.length);
final double[] latList = new double[geoGrid.length];
final double[] lngList = new double[geoGrid.length];
final double[] incidenceAngleList = new double[geoGrid.length];
final double[] elevAngleList = new double[geoGrid.length];
final double[] rangeTimeList = new double[geoGrid.length];
final int[] x = new int[geoGrid.length];
final int[] y = new int[geoGrid.length];
// Loop through the list of geolocation grid points, assuming that it represents a row-major
// rectangular grid.
int gridWidth = 0, gridHeight = 0;
int i = 0;
for (MetadataElement ggPoint : geoGrid) {
latList[i] = ggPoint.getAttributeDouble("latitude", 0);
lngList[i] = ggPoint.getAttributeDouble("longitude", 0);
incidenceAngleList[i] = ggPoint.getAttributeDouble("incidenceAngle", 0);
elevAngleList[i] = ggPoint.getAttributeDouble("elevationAngle", 0);
rangeTimeList[i] =
ggPoint.getAttributeDouble("slantRangeTime", 0) * Constants.oneBillion; // s to ns
x[i] = (int) ggPoint.getAttributeDouble("pixel", 0);
y[i] = (int) ggPoint.getAttributeDouble("line", 0);
if (x[i] == 0) {
// This means we are at the start of a new line
if (gridWidth
== 0) // Here we are implicitly assuming that the pixel horizontal spacing is assumed to
// be the same from line to line.
gridWidth = i;
++gridHeight;
}
++i;
}
// System.out.println("geoGrid w = " + gridWidth + "; h = " + gridHeight);
final int newGridWidth = gridWidth;
final int newGridHeight = gridHeight;
final float[] newLatList = new float[newGridWidth * newGridHeight];
final float[] newLonList = new float[newGridWidth * newGridHeight];
final float[] newIncList = new float[newGridWidth * newGridHeight];
final float[] newElevList = new float[newGridWidth * newGridHeight];
final float[] newslrtList = new float[newGridWidth * newGridHeight];
final int sceneRasterWidth = band.getSceneRasterWidth();
final int sceneRasterHeight = band.getSceneRasterHeight();
final double subSamplingX = (double) sceneRasterWidth / (newGridWidth - 1);
final double subSamplingY = (double) sceneRasterHeight / (newGridHeight - 1);
getListInEvenlySpacedGrid(
sceneRasterWidth,
sceneRasterHeight,
gridWidth,
gridHeight,
x,
y,
latList,
newGridWidth,
newGridHeight,
subSamplingX,
subSamplingY,
newLatList);
getListInEvenlySpacedGrid(
sceneRasterWidth,
sceneRasterHeight,
gridWidth,
gridHeight,
x,
y,
lngList,
newGridWidth,
newGridHeight,
subSamplingX,
subSamplingY,
newLonList);
getListInEvenlySpacedGrid(
sceneRasterWidth,
sceneRasterHeight,
gridWidth,
gridHeight,
x,
y,
incidenceAngleList,
newGridWidth,
newGridHeight,
subSamplingX,
subSamplingY,
newIncList);
getListInEvenlySpacedGrid(
sceneRasterWidth,
sceneRasterHeight,
gridWidth,
gridHeight,
x,
y,
elevAngleList,
newGridWidth,
newGridHeight,
subSamplingX,
subSamplingY,
newElevList);
getListInEvenlySpacedGrid(
sceneRasterWidth,
sceneRasterHeight,
gridWidth,
gridHeight,
x,
y,
rangeTimeList,
newGridWidth,
newGridHeight,
subSamplingX,
subSamplingY,
newslrtList);
TiePointGrid latGrid = product.getTiePointGrid(pre + OperatorUtils.TPG_LATITUDE);
if (latGrid == null) {
latGrid =
new TiePointGrid(
pre + OperatorUtils.TPG_LATITUDE,
newGridWidth,
newGridHeight,
0.5f,
0.5f,
subSamplingX,
subSamplingY,
newLatList);
latGrid.setUnit(Unit.DEGREES);
product.addTiePointGrid(latGrid);
}
TiePointGrid lonGrid = product.getTiePointGrid(pre + OperatorUtils.TPG_LONGITUDE);
if (lonGrid == null) {
lonGrid =
new TiePointGrid(
pre + OperatorUtils.TPG_LONGITUDE,
newGridWidth,
newGridHeight,
0.5f,
0.5f,
subSamplingX,
subSamplingY,
newLonList,
TiePointGrid.DISCONT_AT_180);
lonGrid.setUnit(Unit.DEGREES);
product.addTiePointGrid(lonGrid);
}
if (product.getTiePointGrid(pre + OperatorUtils.TPG_INCIDENT_ANGLE) == null) {
final TiePointGrid incidentAngleGrid =
new TiePointGrid(
pre + OperatorUtils.TPG_INCIDENT_ANGLE,
newGridWidth,
newGridHeight,
0.5f,
0.5f,
subSamplingX,
subSamplingY,
newIncList);
incidentAngleGrid.setUnit(Unit.DEGREES);
product.addTiePointGrid(incidentAngleGrid);
}
if (product.getTiePointGrid(pre + OperatorUtils.TPG_ELEVATION_ANGLE) == null) {
final TiePointGrid elevAngleGrid =
new TiePointGrid(
pre + OperatorUtils.TPG_ELEVATION_ANGLE,
newGridWidth,
newGridHeight,
0.5f,
0.5f,
subSamplingX,
subSamplingY,
newElevList);
elevAngleGrid.setUnit(Unit.DEGREES);
product.addTiePointGrid(elevAngleGrid);
}
if (product.getTiePointGrid(pre + OperatorUtils.TPG_SLANT_RANGE_TIME) == null) {
final TiePointGrid slantRangeGrid =
new TiePointGrid(
pre + OperatorUtils.TPG_SLANT_RANGE_TIME,
newGridWidth,
newGridHeight,
0.5f,
0.5f,
subSamplingX,
subSamplingY,
newslrtList);
slantRangeGrid.setUnit(Unit.NANOSECONDS);
product.addTiePointGrid(slantRangeGrid);
}
final TiePointGeoCoding tpGeoCoding = new TiePointGeoCoding(latGrid, lonGrid, Datum.WGS_84);
bandGeocodingMap.put(band, tpGeoCoding);
}
private void addBandAbstractedMetadata(
final MetadataElement absRoot, final MetadataElement origProdRoot) throws IOException {
MetadataElement annotationElement = origProdRoot.getElement("annotation");
if (annotationElement == null) {
annotationElement = new MetadataElement("annotation");
origProdRoot.addElement(annotationElement);
}
// collect range and azimuth spacing
double rangeSpacingTotal = 0;
double azimuthSpacingTotal = 0;
boolean commonMetadataRetrieved = false;
double heightSum = 0.0;
int numBands = 0;
final String annotFolder = getRootFolder() + "annotation";
final String[] filenames = listFiles(annotFolder);
if (filenames != null) {
for (String metadataFile : filenames) {
final Document xmlDoc =
XMLSupport.LoadXML(getInputStream(annotFolder + '/' + metadataFile));
final Element rootElement = xmlDoc.getRootElement();
final MetadataElement nameElem = new MetadataElement(metadataFile);
annotationElement.addElement(nameElem);
AbstractMetadataIO.AddXMLMetadata(rootElement, nameElem);
final MetadataElement prodElem = nameElem.getElement("product");
final MetadataElement adsHeader = prodElem.getElement("adsHeader");
final String swath = adsHeader.getAttributeString("swath");
final String pol = adsHeader.getAttributeString("polarisation");
final ProductData.UTC startTime = getTime(adsHeader, "startTime");
final ProductData.UTC stopTime = getTime(adsHeader, "stopTime");
final String bandRootName = AbstractMetadata.BAND_PREFIX + swath + '_' + pol;
final MetadataElement bandAbsRoot =
AbstractMetadata.addBandAbstractedMetadata(absRoot, bandRootName);
final String imgName = FileUtils.exchangeExtension(metadataFile, ".tiff");
imgBandMetadataMap.put(imgName, bandRootName);
AbstractMetadata.setAttribute(bandAbsRoot, AbstractMetadata.SWATH, swath);
AbstractMetadata.setAttribute(bandAbsRoot, AbstractMetadata.polarization, pol);
AbstractMetadata.setAttribute(bandAbsRoot, AbstractMetadata.annotation, metadataFile);
AbstractMetadata.setAttribute(bandAbsRoot, AbstractMetadata.first_line_time, startTime);
AbstractMetadata.setAttribute(bandAbsRoot, AbstractMetadata.last_line_time, stopTime);
if (AbstractMetadata.isNoData(absRoot, AbstractMetadata.mds1_tx_rx_polar)) {
AbstractMetadata.setAttribute(absRoot, AbstractMetadata.mds1_tx_rx_polar, pol);
} else {
AbstractMetadata.setAttribute(absRoot, AbstractMetadata.mds2_tx_rx_polar, pol);
}
final MetadataElement imageAnnotation = prodElem.getElement("imageAnnotation");
final MetadataElement imageInformation = imageAnnotation.getElement("imageInformation");
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.data_take_id,
Integer.parseInt(adsHeader.getAttributeString("missionDataTakeId")));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.slice_num,
Integer.parseInt(imageInformation.getAttributeString("sliceNumber")));
rangeSpacingTotal += imageInformation.getAttributeDouble("rangePixelSpacing");
azimuthSpacingTotal += imageInformation.getAttributeDouble("azimuthPixelSpacing");
AbstractMetadata.setAttribute(
bandAbsRoot,
AbstractMetadata.line_time_interval,
imageInformation.getAttributeDouble("azimuthTimeInterval"));
AbstractMetadata.setAttribute(
bandAbsRoot,
AbstractMetadata.num_samples_per_line,
imageInformation.getAttributeInt("numberOfSamples"));
AbstractMetadata.setAttribute(
bandAbsRoot,
AbstractMetadata.num_output_lines,
imageInformation.getAttributeInt("numberOfLines"));
AbstractMetadata.setAttribute(
bandAbsRoot,
AbstractMetadata.sample_type,
imageInformation.getAttributeString("pixelValue").toUpperCase());
heightSum += getBandTerrainHeight(prodElem);
if (!commonMetadataRetrieved) {
// these should be the same for all swaths
// set to absRoot
final MetadataElement generalAnnotation = prodElem.getElement("generalAnnotation");
final MetadataElement productInformation =
generalAnnotation.getElement("productInformation");
final MetadataElement processingInformation =
imageAnnotation.getElement("processingInformation");
final MetadataElement swathProcParamsList =
processingInformation.getElement("swathProcParamsList");
final MetadataElement swathProcParams = swathProcParamsList.getElement("swathProcParams");
final MetadataElement rangeProcessing = swathProcParams.getElement("rangeProcessing");
final MetadataElement azimuthProcessing = swathProcParams.getElement("azimuthProcessing");
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.range_sampling_rate,
productInformation.getAttributeDouble("rangeSamplingRate") / Constants.oneMillion);
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.radar_frequency,
productInformation.getAttributeDouble("radarFrequency") / Constants.oneMillion);
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.line_time_interval,
imageInformation.getAttributeDouble("azimuthTimeInterval"));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.slant_range_to_first_pixel,
imageInformation.getAttributeDouble("slantRangeTime") * Constants.halfLightSpeed);
final MetadataElement downlinkInformationList =
generalAnnotation.getElement("downlinkInformationList");
final MetadataElement downlinkInformation =
downlinkInformationList.getElement("downlinkInformation");
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.pulse_repetition_frequency,
downlinkInformation.getAttributeDouble("prf"));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.range_bandwidth,
rangeProcessing.getAttributeDouble("processingBandwidth") / Constants.oneMillion);
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.azimuth_bandwidth,
azimuthProcessing.getAttributeDouble("processingBandwidth"));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.range_looks,
rangeProcessing.getAttributeDouble("numberOfLooks"));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.azimuth_looks,
azimuthProcessing.getAttributeDouble("numberOfLooks"));
if (!isTOPSAR() || !isSLC()) {
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.num_output_lines,
imageInformation.getAttributeInt("numberOfLines"));
AbstractMetadata.setAttribute(
absRoot,
AbstractMetadata.num_samples_per_line,
imageInformation.getAttributeInt("numberOfSamples"));
}
addOrbitStateVectors(absRoot, generalAnnotation.getElement("orbitList"));
addSRGRCoefficients(absRoot, prodElem.getElement("coordinateConversion"));
addDopplerCentroidCoefficients(absRoot, prodElem.getElement("dopplerCentroid"));
commonMetadataRetrieved = true;
}
++numBands;
}
}
// set average to absRoot
AbstractMetadata.setAttribute(
absRoot, AbstractMetadata.range_spacing, rangeSpacingTotal / (double) numBands);
AbstractMetadata.setAttribute(
absRoot, AbstractMetadata.azimuth_spacing, azimuthSpacingTotal / (double) numBands);
AbstractMetadata.setAttribute(
absRoot, AbstractMetadata.avg_scene_height, heightSum / filenames.length);
}