public static HashMap<String, Double> getRegionParamsFromGridCoverage(
GridCoverage2D gridCoverage) {
HashMap<String, Double> envelopeParams = new HashMap<String, Double>();
Envelope envelope = gridCoverage.getEnvelope();
DirectPosition lowerCorner = envelope.getLowerCorner();
double[] westSouth = lowerCorner.getCoordinate();
DirectPosition upperCorner = envelope.getUpperCorner();
double[] eastNorth = upperCorner.getCoordinate();
GridGeometry2D gridGeometry = gridCoverage.getGridGeometry();
GridEnvelope2D gridRange = gridGeometry.getGridRange2D();
int height = gridRange.height;
int width = gridRange.width;
AffineTransform gridToCRS = (AffineTransform) gridGeometry.getGridToCRS();
double xRes = XAffineTransform.getScaleX0(gridToCRS);
double yRes = XAffineTransform.getScaleY0(gridToCRS);
envelopeParams.put(NORTH, eastNorth[1]);
envelopeParams.put(SOUTH, westSouth[1]);
envelopeParams.put(WEST, westSouth[0]);
envelopeParams.put(EAST, eastNorth[0]);
envelopeParams.put(XRES, xRes);
envelopeParams.put(YRES, yRes);
envelopeParams.put(ROWS, (double) height);
envelopeParams.put(COLS, (double) width);
return envelopeParams;
}
public GranuleOverviewLevelDescriptor(
final double scaleX, final double scaleY, final int width, final int height) {
this.scaleX = scaleX;
this.scaleY = scaleY;
this.baseToLevelTransform =
new AffineTransform2D(XAffineTransform.getScaleInstance(scaleX, scaleY, 0, 0));
final AffineTransform gridToWorldTransform_ = new AffineTransform(baseToLevelTransform);
gridToWorldTransform_.preConcatenate(CoverageUtilities.CENTER_TO_CORNER);
gridToWorldTransform_.preConcatenate(baseGridToWorld);
this.gridToWorldTransformCorner = new AffineTransform2D(gridToWorldTransform_);
this.width = width;
this.height = height;
this.rasterDimensions = new Rectangle(0, 0, width, height);
}
/**
* Applies the band select operation to a grid coverage.
*
* @param cropEnvelope the target envelope; always not null
* @param cropROI the target ROI shape; nullable
* @param roiTolerance; as read from op's params
* @param sourceCoverage is the source {@link GridCoverage2D} that we want to crop.
* @param hints A set of rendering hints, or {@code null} if none.
* @param sourceGridToWorldTransform is the 2d grid-to-world transform for the source coverage.
* @return The result as a grid coverage.
*/
private static GridCoverage2D buildResult(
final GeneralEnvelope cropEnvelope,
final Geometry cropROI,
final double roiTolerance,
final boolean forceMosaic,
final Hints hints,
final GridCoverage2D sourceCoverage,
final AffineTransform sourceGridToWorldTransform) {
//
// Getting the source coverage and its child geolocation objects
//
final RenderedImage sourceImage = sourceCoverage.getRenderedImage();
final GridGeometry2D sourceGridGeometry = ((GridGeometry2D) sourceCoverage.getGridGeometry());
final GridEnvelope2D sourceGridRange = sourceGridGeometry.getGridRange2D();
//
// Now we try to understand if we have a simple scale and translate or a
// more elaborated grid-to-world transformation n which case a simple
// crop could not be enough, but we may need a more elaborated chain of
// operation in order to do a good job. As an instance if we
// have a rotation which is not multiple of PI/2 we have to use
// the mosaic with a ROI
//
final boolean isSimpleTransform =
CoverageUtilities.isSimpleGridToWorldTransform(sourceGridToWorldTransform, EPS);
// Do we need to explode the Palette to RGB(A)?
//
int actionTaken = 0;
// //
//
// Layout
//
// //
final RenderingHints targetHints = new RenderingHints(null);
if (hints != null) targetHints.add(hints);
final ImageLayout layout = initLayout(sourceImage, targetHints);
targetHints.put(JAI.KEY_IMAGE_LAYOUT, layout);
//
// prepare the processor to use for this operation
//
final JAI processor = OperationJAI.getJAI(targetHints);
final boolean useProvidedProcessor = !processor.equals(JAI.getDefaultInstance());
try {
if (cropROI != null) {
// replace the cropEnvelope with the envelope of the intersection
// of the ROI and the cropEnvelope.
// Remember that envelope(intersection(roi,cropEnvelope)) != intersection(cropEnvelope,
// envelope(roi))
final Polygon modelSpaceROI = FeatureUtilities.getPolygon(cropEnvelope, GFACTORY);
Geometry intersection = IntersectUtils.intersection(cropROI, modelSpaceROI);
Envelope2D e2d =
JTS.getEnvelope2D(
intersection.getEnvelopeInternal(), cropEnvelope.getCoordinateReferenceSystem());
GeneralEnvelope ge = new GeneralEnvelope((org.opengis.geometry.Envelope) e2d);
cropEnvelope.setEnvelope(ge);
}
// //
//
// Build the new range by keeping into
// account translation of grid geometry constructor for respecting
// OGC PIXEL-IS-CENTER ImageDatum assumption.
//
// //
final AffineTransform sourceWorldToGridTransform = sourceGridToWorldTransform.createInverse();
// //
//
// finalRasterArea will hold the smallest rectangular integer raster area that contains the
// floating point raster
// area which we obtain when applying the world-to-grid transform to the cropEnvelope. Note
// that we need to intersect
// such an area with the area covered by the source coverage in order to be sure we do not try
// to crop outside the
// bounds of the source raster.
//
// //
final Rectangle2D finalRasterAreaDouble =
XAffineTransform.transform(
sourceWorldToGridTransform, cropEnvelope.toRectangle2D(), null);
final Rectangle finalRasterArea = finalRasterAreaDouble.getBounds();
// intersection with the original range in order to not try to crop outside the image bounds
Rectangle.intersect(finalRasterArea, sourceGridRange, finalRasterArea);
if (finalRasterArea.isEmpty())
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP));
// //
//
// It is worth to point out that doing a crop the G2W transform
// should not change while the envelope might change as
// a consequence of the rounding of the underlying image datum
// which uses integer factors or in case the G2W is very
// complex. Note that we will always strive to
// conserve the original grid-to-world transform.
//
// //
// we do not have to crop in this case (should not really happen at
// this time)
if (finalRasterArea.equals(sourceGridRange) && isSimpleTransform && cropROI == null)
return sourceCoverage;
// //
//
// if I get here I have something to crop
// using the world-to-grid transform for going from envelope to the
// new grid range.
//
// //
final double minX = finalRasterArea.getMinX();
final double minY = finalRasterArea.getMinY();
final double width = finalRasterArea.getWidth();
final double height = finalRasterArea.getHeight();
// //
//
// Check if we need to use mosaic or crop
//
// //
final PlanarImage croppedImage;
final ParameterBlock pbj = new ParameterBlock();
pbj.addSource(sourceImage);
java.awt.Polygon rasterSpaceROI = null;
String operatioName = null;
if (!isSimpleTransform || cropROI != null) {
// /////////////////////////////////////////////////////////////////////
//
// We don't have a simple scale and translate transform, JAI
// crop MAY NOT suffice. Let's decide whether or not we'll use
// the Mosaic.
//
// /////////////////////////////////////////////////////////////////////
Polygon modelSpaceROI = FeatureUtilities.getPolygon(cropEnvelope, GFACTORY);
// //
//
// Now convert this polygon back into a shape for the source
// raster space.
//
// //
final List<Point2D> points = new ArrayList<Point2D>(5);
rasterSpaceROI =
FeatureUtilities.convertPolygonToPointArray(
modelSpaceROI, ProjectiveTransform.create(sourceWorldToGridTransform), points);
if (rasterSpaceROI == null || rasterSpaceROI.getBounds().isEmpty())
if (finalRasterArea.isEmpty())
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP));
final boolean doMosaic =
forceMosaic
? true
: decideJAIOperation(roiTolerance, rasterSpaceROI.getBounds2D(), points);
if (doMosaic || cropROI != null) {
// prepare the params for the mosaic
final ROI[] roiarr;
try {
if (cropROI != null) {
final LiteShape2 cropRoiLS2 =
new LiteShape2(
cropROI, ProjectiveTransform.create(sourceWorldToGridTransform), null, false);
ROI cropRS = new ROIShape(cropRoiLS2);
Rectangle2D rt = cropRoiLS2.getBounds2D();
if (!hasIntegerBounds(rt)) {
// Approximate Geometry
Geometry geo = (Geometry) cropRoiLS2.getGeometry().clone();
transformGeometry(geo);
cropRS = new ROIShape(new LiteShape2(geo, null, null, false));
}
roiarr = new ROI[] {cropRS};
} else {
final ROIShape roi = new ROIShape(rasterSpaceROI);
roiarr = new ROI[] {roi};
}
} catch (FactoryException ex) {
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP), ex);
}
pbj.add(MosaicDescriptor.MOSAIC_TYPE_OVERLAY);
pbj.add(null);
pbj.add(roiarr);
pbj.add(null);
pbj.add(CoverageUtilities.getBackgroundValues(sourceCoverage));
// prepare the final layout
final Rectangle bounds = rasterSpaceROI.getBounds2D().getBounds();
Rectangle.intersect(bounds, sourceGridRange, bounds);
if (bounds.isEmpty()) throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP));
// we do not have to crop in this case (should not really happen at
// this time)
if (!doMosaic && bounds.getBounds().equals(sourceGridRange) && isSimpleTransform)
return sourceCoverage;
// nice trick, we use the layout to do the actual crop
final Rectangle boundsInt = bounds.getBounds();
layout.setMinX(boundsInt.x);
layout.setWidth(boundsInt.width);
layout.setMinY(boundsInt.y);
layout.setHeight(boundsInt.height);
operatioName = "Mosaic";
}
}
// do we still have to set the operation name? If so that means we have to go for crop.
if (operatioName == null) {
// executing the crop
pbj.add((float) minX);
pbj.add((float) minY);
pbj.add((float) width);
pbj.add((float) height);
operatioName = "GTCrop";
}
// //
//
// Apply operation
//
// //
if (!useProvidedProcessor) {
croppedImage = JAI.create(operatioName, pbj, targetHints);
} else {
croppedImage = processor.createNS(operatioName, pbj, targetHints);
}
// conserve the input grid to world transformation
Map sourceProperties = sourceCoverage.getProperties();
Map properties = null;
if (sourceProperties != null && !sourceProperties.isEmpty()) {
properties = new HashMap(sourceProperties);
}
if (rasterSpaceROI != null) {
if (properties != null) {
properties.put("GC_ROI", rasterSpaceROI);
} else {
properties = Collections.singletonMap("GC_ROI", rasterSpaceROI);
}
}
return new GridCoverageFactory(hints)
.create(
sourceCoverage.getName(),
croppedImage,
new GridGeometry2D(
new GridEnvelope2D(croppedImage.getBounds()),
sourceGridGeometry.getGridToCRS2D(PixelOrientation.CENTER),
sourceCoverage.getCoordinateReferenceSystem()),
(GridSampleDimension[])
(actionTaken == 1 ? null : sourceCoverage.getSampleDimensions().clone()),
new GridCoverage[] {sourceCoverage},
properties);
} catch (TransformException e) {
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP), e);
} catch (NoninvertibleTransformException e) {
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP), e);
}
}
/**
* Applies a crop operation to a coverage.
*
* @see
* org.geotools.coverage.processing.AbstractOperation#doOperation(org.opengis.parameter.ParameterValueGroup,
* org.geotools.factory.Hints)
*/
@SuppressWarnings("unchecked")
public Coverage doOperation(ParameterValueGroup parameters, Hints hints) {
final Geometry cropRoi; // extracted from parameters
GeneralEnvelope cropEnvelope = null; // extracted from parameters
final GridCoverage2D source; // extracted from parameters
final double roiTolerance = parameters.parameter(Crop.PARAMNAME_ROITOLERANCE).doubleValue();
final boolean forceMosaic = parameters.parameter(Crop.PARAMNAME_FORCEMOSAIC).booleanValue();
// /////////////////////////////////////////////////////////////////////
//
// Assigning and checking input parameters
//
// ///////////////////////////////////////////////////////////////////
// source coverage
final ParameterValue sourceParameter = parameters.parameter("Source");
if (sourceParameter == null || !(sourceParameter.getValue() instanceof GridCoverage2D)) {
throw new CannotCropException(
Errors.format(ErrorKeys.NULL_PARAMETER_$2, "Source", GridCoverage2D.class.toString()));
}
source = (GridCoverage2D) sourceParameter.getValue();
// Check Envelope and ROI existence - we need at least one of them
final ParameterValue envelopeParameter = parameters.parameter(PARAMNAME_ENVELOPE);
final ParameterValue roiParameter = parameters.parameter(PARAMNAME_ROI);
if ((envelopeParameter == null || envelopeParameter.getValue() == null)
&& (roiParameter == null || roiParameter.getValue() == null))
throw new CannotCropException(
Errors.format(
ErrorKeys.NULL_PARAMETER_$2, PARAMNAME_ENVELOPE, GeneralEnvelope.class.toString()));
Object envelope = envelopeParameter.getValue();
if (envelope != null) {
if (envelope instanceof GeneralEnvelope) {
cropEnvelope = (GeneralEnvelope) envelope;
} else if (envelope instanceof Envelope) {
cropEnvelope = new GeneralEnvelope((Envelope) envelope);
}
}
// may be null
// Check crop ROI
try {
cropRoi =
IntersectUtils.unrollGeometries(
(Geometry) roiParameter.getValue()); // may throw if format not correct
} catch (IllegalArgumentException ex) {
throw new CannotCropException(
Errors.format(ErrorKeys.ILLEGAL_ARGUMENT_$2, PARAMNAME_ROI, ex.getMessage()), ex);
}
// Setting a GeneralEnvelope from ROI if needed
if (cropRoi != null && cropEnvelope == null) {
Envelope e2d =
JTS.getEnvelope2D(cropRoi.getEnvelopeInternal(), source.getCoordinateReferenceSystem());
cropEnvelope = new GeneralEnvelope(e2d);
}
// /////////////////////////////////////////////////////////////////////
//
// Initialization
//
// We take the crop envelope and the source envelope then we check their
// crs and we also check if they ever overlap.
//
// /////////////////////////////////////////////////////////////////////
// envelope of the source coverage
final Envelope2D sourceEnvelope = source.getEnvelope2D();
// crop envelope
Envelope2D destinationEnvelope = new Envelope2D(cropEnvelope);
CoordinateReferenceSystem sourceCRS = sourceEnvelope.getCoordinateReferenceSystem();
CoordinateReferenceSystem destinationCRS = destinationEnvelope.getCoordinateReferenceSystem();
if (destinationCRS == null) {
// Do not change the user provided object - clone it first.
final Envelope2D ge = new Envelope2D(destinationEnvelope);
destinationCRS = source.getCoordinateReferenceSystem2D();
ge.setCoordinateReferenceSystem(destinationCRS);
destinationEnvelope = ge;
}
// //
//
// Source and destination crs must be equals
//
// //
if (!CRS.equalsIgnoreMetadata(sourceCRS, destinationCRS)) {
throw new CannotCropException(
Errors.format(
ErrorKeys.MISMATCHED_ENVELOPE_CRS_$2,
sourceCRS.getName().getCode(),
destinationCRS.getName().getCode()));
}
if (cropRoi != null) {
// TODO: check ROI SRID
}
// //
//
// Check the intersection and, if needed, do the crop operation.
//
// //
final GeneralEnvelope intersectionEnvelope =
new GeneralEnvelope((Envelope) destinationEnvelope);
intersectionEnvelope.setCoordinateReferenceSystem(source.getCoordinateReferenceSystem());
// intersect the envelopes
intersectionEnvelope.intersect(sourceEnvelope);
if (intersectionEnvelope.isEmpty())
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP));
// intersect the ROI with the intersection envelope and throw an error if they do not intersect
if (cropRoi != null) {
final Geometry jis =
JTS.toGeometry(
(com.vividsolutions.jts.geom.Envelope) new ReferencedEnvelope(intersectionEnvelope));
if (!IntersectUtils.intersects(cropRoi, jis))
throw new CannotCropException(Errors.format(ErrorKeys.CANT_CROP));
}
// //
//
// Get the grid-to-world transform by keeping into account translation
// of grid geometry constructor for respecting OGC PIXEL-IS-CENTER
// ImageDatum assumption.
//
// //
final AffineTransform sourceCornerGridToWorld =
(AffineTransform)
((GridGeometry2D) source.getGridGeometry()).getGridToCRS(PixelInCell.CELL_CORNER);
// //
//
// I set the tolerance as half the scale factor of the grid-to-world
// transform. This should more or less means in most cases "don't bother
// to crop if the new envelope is as close to the old one that we go
// deep under pixel size."
//
// //
final double tolerance = XAffineTransform.getScale(sourceCornerGridToWorld);
if (cropRoi != null || !intersectionEnvelope.equals(sourceEnvelope, tolerance / 2.0, false)) {
cropEnvelope = intersectionEnvelope.clone();
return buildResult(
cropEnvelope,
cropRoi,
roiTolerance,
forceMosaic,
(hints instanceof Hints) ? (Hints) hints : new Hints(hints),
source,
sourceCornerGridToWorld);
} else {
// //
//
// Note that in case we don't crop at all, WE DO NOT UPDATE the
// envelope. If we did we might end up doing multiple successive
// crop without actually cropping the image but, still, we would
// shrink the envelope each time. Just think about having a loop
// that crops recursively the same coverage specifying each time an
// envelope whose URC is only a a scale quarter close to the LLC of
// the old one. We would never crop the raster but we would modify
// the grid-to-world transform each time.
//
// //
return source;
}
}
/**
* Collect georeferencing information about this geotiff.
*
* @param hints
* @throws DataSourceException
*/
private void getHRInfo(Hints hints) throws DataSourceException {
ImageReader reader = null;
ImageReader ovrReader = null;
ImageInputStream ovrStream = null;
try {
// //
//
// Get a reader for this format
//
// //
reader = READER_SPI.createReaderInstance();
// //
//
// get the METADATA
//
// //
inStream.mark();
reader.setInput(inStream);
final IIOMetadata iioMetadata = reader.getImageMetadata(0);
final GeoTiffIIOMetadataDecoder metadata = new GeoTiffIIOMetadataDecoder(iioMetadata);
gtcs = new GeoTiffMetadata2CRSAdapter(hints);
// //
//
// get the CRS INFO
//
// //
final Object tempCRS = this.hints.get(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM);
if (tempCRS != null) {
this.crs = (CoordinateReferenceSystem) tempCRS;
if (LOGGER.isLoggable(Level.FINE))
LOGGER.log(Level.FINE, "Using forced coordinate reference system");
} else {
// check external prj first
crs = getCRS(source);
// now, if we did not want to override the inner CRS or we did not have any external PRJ at
// hand
// let's look inside the geotiff
if (!OVERRIDE_INNER_CRS || crs == null) {
if (metadata.hasGeoKey() && gtcs != null) {
crs = gtcs.createCoordinateSystem(metadata);
}
}
}
//
// No data
//
if (metadata.hasNoData()) {
noData = metadata.getNoData();
}
//
// parse and set layout
//
setLayout(reader);
// //
//
// get the dimension of the hr image and build the model as well as
// computing the resolution
// //
numOverviews = reader.getNumImages(true) - 1;
int hrWidth = reader.getWidth(0);
int hrHeight = reader.getHeight(0);
final Rectangle actualDim = new Rectangle(0, 0, hrWidth, hrHeight);
originalGridRange = new GridEnvelope2D(actualDim);
if (gtcs != null
&& metadata != null
&& (metadata.hasModelTrasformation()
|| (metadata.hasPixelScales() && metadata.hasTiePoints()))) {
this.raster2Model = GeoTiffMetadata2CRSAdapter.getRasterToModel(metadata);
} else {
// world file
this.raster2Model = parseWorldFile(source);
// now world file --> mapinfo?
if (raster2Model == null) {
MapInfoFileReader mifReader = parseMapInfoFile(source);
if (mifReader != null) {
raster2Model = mifReader.getTransform();
crs = mifReader.getCRS();
}
}
}
if (crs == null) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning("Coordinate Reference System is not available");
}
crs = AbstractGridFormat.getDefaultCRS();
}
if (this.raster2Model == null) {
TiePoint[] modelTiePoints = metadata.getModelTiePoints();
if (modelTiePoints != null && modelTiePoints.length > 1) {
// use a unit transform and expose the GCPs
gcps = new GroundControlPoints(Arrays.asList(modelTiePoints), crs);
raster2Model = ProjectiveTransform.create(new AffineTransform());
crs = AbstractGridFormat.getDefaultCRS();
} else {
throw new DataSourceException("Raster to Model Transformation is not available");
}
}
// create envelope using corner transformation
final AffineTransform tempTransform = new AffineTransform((AffineTransform) raster2Model);
tempTransform.concatenate(CoverageUtilities.CENTER_TO_CORNER);
originalEnvelope =
CRS.transform(ProjectiveTransform.create(tempTransform), new GeneralEnvelope(actualDim));
originalEnvelope.setCoordinateReferenceSystem(crs);
// ///
//
// setting the higher resolution available for this coverage
//
// ///
highestRes = new double[2];
highestRes[0] = XAffineTransform.getScaleX0(tempTransform);
highestRes[1] = XAffineTransform.getScaleY0(tempTransform);
if (ovrInStreamSPI != null) {
ovrReader = READER_SPI.createReaderInstance();
ovrStream =
ovrInStreamSPI.createInputStreamInstance(
ovrSource, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
ovrReader.setInput(ovrStream);
// this includes the real image as this is a image index, we need to add one.
extOvrImgChoice = numOverviews + 1;
numOverviews = numOverviews + ovrReader.getNumImages(true);
if (numOverviews < extOvrImgChoice) extOvrImgChoice = -1;
}
// //
//
// get information for the successive images
//
// //
if (numOverviews >= 1) {
overViewResolutions = new double[numOverviews][2];
// Internal overviews start at 1, so lastInternalOverview matches numOverviews if no
// external.
int firstExternalOverview = extOvrImgChoice == -1 ? numOverviews : extOvrImgChoice - 1;
double spanRes0 = highestRes[0] * this.originalGridRange.getSpan(0);
double spanRes1 = highestRes[1] * this.originalGridRange.getSpan(1);
for (int i = 0; i < firstExternalOverview; i++) {
overViewResolutions[i][0] = spanRes0 / reader.getWidth(i + 1);
overViewResolutions[i][1] = spanRes1 / reader.getHeight(i + 1);
}
for (int i = firstExternalOverview; i < numOverviews; i++) {
overViewResolutions[i][0] = spanRes0 / ovrReader.getWidth(i - firstExternalOverview);
overViewResolutions[i][1] = spanRes1 / ovrReader.getHeight(i - firstExternalOverview);
}
} else overViewResolutions = null;
} catch (Throwable e) {
throw new DataSourceException(e);
} finally {
if (reader != null)
try {
reader.dispose();
} catch (Throwable t) {
}
if (ovrReader != null)
try {
ovrReader.dispose();
} catch (Throwable t) {
}
if (ovrStream != null)
try {
ovrStream.close();
} catch (Throwable t) {
}
if (inStream != null)
try {
inStream.reset();
} catch (Throwable t) {
}
}
}
/**
* Load a specified a raster as a portion of the granule describe by this {@link
* GranuleDescriptor}.
*
* @param imageReadParameters the {@link ImageReadParam} to use for reading.
* @param index the index to use for the {@link ImageReader}.
* @param cropBBox the bbox to use for cropping.
* @param mosaicWorldToGrid the cropping grid to world transform.
* @param request the incoming request to satisfy.
* @param hints {@link Hints} to be used for creating this raster.
* @return a specified a raster as a portion of the granule describe by this {@link
* GranuleDescriptor}.
* @throws IOException in case an error occurs.
*/
public GranuleLoadingResult loadRaster(
final ImageReadParam imageReadParameters,
final int index,
final ReferencedEnvelope cropBBox,
final MathTransform2D mosaicWorldToGrid,
final RasterLayerRequest request,
final Hints hints)
throws IOException {
if (LOGGER.isLoggable(java.util.logging.Level.FINER)) {
final String name = Thread.currentThread().getName();
LOGGER.finer(
"Thread:" + name + " Loading raster data for granuleDescriptor " + this.toString());
}
ImageReadParam readParameters = null;
int imageIndex;
final ReferencedEnvelope bbox =
inclusionGeometry != null
? new ReferencedEnvelope(
granuleBBOX.intersection(inclusionGeometry.getEnvelopeInternal()),
granuleBBOX.getCoordinateReferenceSystem())
: granuleBBOX;
boolean doFiltering = false;
if (filterMe) {
doFiltering = Utils.areaIsDifferent(inclusionGeometry, baseGridToWorld, granuleBBOX);
}
// intersection of this tile bound with the current crop bbox
final ReferencedEnvelope intersection =
new ReferencedEnvelope(
bbox.intersection(cropBBox), cropBBox.getCoordinateReferenceSystem());
if (intersection.isEmpty()) {
if (LOGGER.isLoggable(java.util.logging.Level.FINE)) {
LOGGER.fine(
new StringBuilder("Got empty intersection for granule ")
.append(this.toString())
.append(" with request ")
.append(request.toString())
.append(" Resulting in no granule loaded: Empty result")
.toString());
}
return null;
}
ImageInputStream inStream = null;
ImageReader reader = null;
try {
//
// get info about the raster we have to read
//
// get a stream
assert cachedStreamSPI != null : "no cachedStreamSPI available!";
inStream =
cachedStreamSPI.createInputStreamInstance(
granuleUrl, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
if (inStream == null) return null;
// get a reader and try to cache the relevant SPI
if (cachedReaderSPI == null) {
reader = ImageIOExt.getImageioReader(inStream);
if (reader != null) cachedReaderSPI = reader.getOriginatingProvider();
} else reader = cachedReaderSPI.createReaderInstance();
if (reader == null) {
if (LOGGER.isLoggable(java.util.logging.Level.WARNING)) {
LOGGER.warning(
new StringBuilder("Unable to get s reader for granuleDescriptor ")
.append(this.toString())
.append(" with request ")
.append(request.toString())
.append(" Resulting in no granule loaded: Empty result")
.toString());
}
return null;
}
// set input
reader.setInput(inStream);
// Checking for heterogeneous granules
if (request.isHeterogeneousGranules()) {
// create read parameters
readParameters = new ImageReadParam();
// override the overviews controller for the base layer
imageIndex =
ReadParamsController.setReadParams(
request.getRequestedResolution(),
request.getOverviewPolicy(),
request.getDecimationPolicy(),
readParameters,
request.rasterManager,
overviewsController);
} else {
imageIndex = index;
readParameters = imageReadParameters;
}
// get selected level and base level dimensions
final GranuleOverviewLevelDescriptor selectedlevel = getLevel(imageIndex, reader);
// now create the crop grid to world which can be used to decide
// which source area we need to crop in the selected level taking
// into account the scale factors imposed by the selection of this
// level together with the base level grid to world transformation
AffineTransform2D cropWorldToGrid =
new AffineTransform2D(selectedlevel.gridToWorldTransformCorner);
cropWorldToGrid = (AffineTransform2D) cropWorldToGrid.inverse();
// computing the crop source area which lives into the
// selected level raster space, NOTICE that at the end we need to
// take into account the fact that we might also decimate therefore
// we cannot just use the crop grid to world but we need to correct
// it.
final Rectangle sourceArea =
CRS.transform(cropWorldToGrid, intersection).toRectangle2D().getBounds();
// gutter
if (selectedlevel.baseToLevelTransform.isIdentity()) sourceArea.grow(2, 2);
XRectangle2D.intersect(
sourceArea,
selectedlevel.rasterDimensions,
sourceArea); // make sure roundings don't bother us
// is it empty??
if (sourceArea.isEmpty()) {
if (LOGGER.isLoggable(java.util.logging.Level.FINE)) {
LOGGER.fine(
"Got empty area for granuleDescriptor "
+ this.toString()
+ " with request "
+ request.toString()
+ " Resulting in no granule loaded: Empty result");
}
return null;
} else if (LOGGER.isLoggable(java.util.logging.Level.FINER)) {
LOGGER.finer(
"Loading level "
+ imageIndex
+ " with source region: "
+ sourceArea
+ " subsampling: "
+ readParameters.getSourceXSubsampling()
+ ","
+ readParameters.getSourceYSubsampling()
+ " for granule:"
+ granuleUrl);
}
// Setting subsampling
int newSubSamplingFactor = 0;
final String pluginName = cachedReaderSPI.getPluginClassName();
if (pluginName != null && pluginName.equals(ImageUtilities.DIRECT_KAKADU_PLUGIN)) {
final int ssx = readParameters.getSourceXSubsampling();
final int ssy = readParameters.getSourceYSubsampling();
newSubSamplingFactor = ImageIOUtilities.getSubSamplingFactor2(ssx, ssy);
if (newSubSamplingFactor != 0) {
if (newSubSamplingFactor > maxDecimationFactor && maxDecimationFactor != -1) {
newSubSamplingFactor = maxDecimationFactor;
}
readParameters.setSourceSubsampling(newSubSamplingFactor, newSubSamplingFactor, 0, 0);
}
}
// set the source region
readParameters.setSourceRegion(sourceArea);
final RenderedImage raster;
try {
// read
raster =
request
.getReadType()
.read(
readParameters,
imageIndex,
granuleUrl,
selectedlevel.rasterDimensions,
reader,
hints,
false);
} catch (Throwable e) {
if (LOGGER.isLoggable(java.util.logging.Level.FINE)) {
LOGGER.log(
java.util.logging.Level.FINE,
"Unable to load raster for granuleDescriptor "
+ this.toString()
+ " with request "
+ request.toString()
+ " Resulting in no granule loaded: Empty result",
e);
}
return null;
}
// use fixed source area
sourceArea.setRect(readParameters.getSourceRegion());
//
// setting new coefficients to define a new affineTransformation
// to be applied to the grid to world transformation
// -----------------------------------------------------------------------------------
//
// With respect to the original envelope, the obtained planarImage
// needs to be rescaled. The scaling factors are computed as the
// ratio between the cropped source region sizes and the read
// image sizes.
//
// place it in the mosaic using the coords created above;
double decimationScaleX = ((1.0 * sourceArea.width) / raster.getWidth());
double decimationScaleY = ((1.0 * sourceArea.height) / raster.getHeight());
final AffineTransform decimationScaleTranform =
XAffineTransform.getScaleInstance(decimationScaleX, decimationScaleY);
// keep into account translation to work into the selected level raster space
final AffineTransform afterDecimationTranslateTranform =
XAffineTransform.getTranslateInstance(sourceArea.x, sourceArea.y);
// now we need to go back to the base level raster space
final AffineTransform backToBaseLevelScaleTransform = selectedlevel.baseToLevelTransform;
// now create the overall transform
final AffineTransform finalRaster2Model = new AffineTransform(baseGridToWorld);
finalRaster2Model.concatenate(CoverageUtilities.CENTER_TO_CORNER);
final double x = finalRaster2Model.getTranslateX();
final double y = finalRaster2Model.getTranslateY();
if (!XAffineTransform.isIdentity(backToBaseLevelScaleTransform, Utils.AFFINE_IDENTITY_EPS))
finalRaster2Model.concatenate(backToBaseLevelScaleTransform);
if (!XAffineTransform.isIdentity(afterDecimationTranslateTranform, Utils.AFFINE_IDENTITY_EPS))
finalRaster2Model.concatenate(afterDecimationTranslateTranform);
if (!XAffineTransform.isIdentity(decimationScaleTranform, Utils.AFFINE_IDENTITY_EPS))
finalRaster2Model.concatenate(decimationScaleTranform);
// keep into account translation factors to place this tile
finalRaster2Model.preConcatenate((AffineTransform) mosaicWorldToGrid);
final Interpolation interpolation = request.getInterpolation();
// paranoiac check to avoid that JAI freaks out when computing its internal layouT on images
// that are too small
Rectangle2D finalLayout =
ImageUtilities.layoutHelper(
raster,
(float) finalRaster2Model.getScaleX(),
(float) finalRaster2Model.getScaleY(),
(float) finalRaster2Model.getTranslateX(),
(float) finalRaster2Model.getTranslateY(),
interpolation);
if (finalLayout.isEmpty()) {
if (LOGGER.isLoggable(java.util.logging.Level.INFO))
LOGGER.info(
"Unable to create a granuleDescriptor "
+ this.toString()
+ " due to jai scale bug creating a null source area");
return null;
}
ROI granuleLoadingShape = null;
if (granuleROIShape != null) {
final Point2D translate =
mosaicWorldToGrid.transform(new DirectPosition2D(x, y), (Point2D) null);
AffineTransform tx2 = new AffineTransform();
tx2.preConcatenate(
AffineTransform.getScaleInstance(
((AffineTransform) mosaicWorldToGrid).getScaleX(),
-((AffineTransform) mosaicWorldToGrid).getScaleY()));
tx2.preConcatenate(
AffineTransform.getScaleInstance(
((AffineTransform) baseGridToWorld).getScaleX(),
-((AffineTransform) baseGridToWorld).getScaleY()));
tx2.preConcatenate(
AffineTransform.getTranslateInstance(translate.getX(), translate.getY()));
granuleLoadingShape = (ROI) granuleROIShape.transform(tx2);
}
// apply the affine transform conserving indexed color model
final RenderingHints localHints =
new RenderingHints(
JAI.KEY_REPLACE_INDEX_COLOR_MODEL,
interpolation instanceof InterpolationNearest ? Boolean.FALSE : Boolean.TRUE);
if (XAffineTransform.isIdentity(finalRaster2Model, Utils.AFFINE_IDENTITY_EPS)) {
return new GranuleLoadingResult(raster, granuleLoadingShape, granuleUrl, doFiltering);
} else {
//
// In case we are asked to use certain tile dimensions we tile
// also at this stage in case the read type is Direct since
// buffered images comes up untiled and this can affect the
// performances of the subsequent affine operation.
//
final Dimension tileDimensions = request.getTileDimensions();
if (tileDimensions != null && request.getReadType().equals(ReadType.DIRECT_READ)) {
final ImageLayout layout = new ImageLayout();
layout.setTileHeight(tileDimensions.width).setTileWidth(tileDimensions.height);
localHints.add(new RenderingHints(JAI.KEY_IMAGE_LAYOUT, layout));
} else {
if (hints != null && hints.containsKey(JAI.KEY_IMAGE_LAYOUT)) {
final Object layout = hints.get(JAI.KEY_IMAGE_LAYOUT);
if (layout != null && layout instanceof ImageLayout) {
localHints.add(
new RenderingHints(JAI.KEY_IMAGE_LAYOUT, ((ImageLayout) layout).clone()));
}
}
}
if (hints != null && hints.containsKey(JAI.KEY_TILE_CACHE)) {
final Object cache = hints.get(JAI.KEY_TILE_CACHE);
if (cache != null && cache instanceof TileCache)
localHints.add(new RenderingHints(JAI.KEY_TILE_CACHE, (TileCache) cache));
}
if (hints != null && hints.containsKey(JAI.KEY_TILE_SCHEDULER)) {
final Object scheduler = hints.get(JAI.KEY_TILE_SCHEDULER);
if (scheduler != null && scheduler instanceof TileScheduler)
localHints.add(new RenderingHints(JAI.KEY_TILE_SCHEDULER, (TileScheduler) scheduler));
}
boolean addBorderExtender = true;
if (hints != null && hints.containsKey(JAI.KEY_BORDER_EXTENDER)) {
final Object extender = hints.get(JAI.KEY_BORDER_EXTENDER);
if (extender != null && extender instanceof BorderExtender) {
localHints.add(new RenderingHints(JAI.KEY_BORDER_EXTENDER, (BorderExtender) extender));
addBorderExtender = false;
}
}
// border extender
if (addBorderExtender) {
localHints.add(ImageUtilities.BORDER_EXTENDER_HINTS);
}
// boolean hasScaleX=!(Math.abs(finalRaster2Model.getScaleX()-1) <
// 1E-2/(raster.getWidth()+1-raster.getMinX()));
// boolean hasScaleY=!(Math.abs(finalRaster2Model.getScaleY()-1) <
// 1E-2/(raster.getHeight()+1-raster.getMinY()));
// boolean hasShearX=!(finalRaster2Model.getShearX() == 0.0);
// boolean hasShearY=!(finalRaster2Model.getShearY() == 0.0);
// boolean hasTranslateX=!(Math.abs(finalRaster2Model.getTranslateX()) <
// 0.01F);
// boolean hasTranslateY=!(Math.abs(finalRaster2Model.getTranslateY()) <
// 0.01F);
// boolean isTranslateXInt=!(Math.abs(finalRaster2Model.getTranslateX() -
// (int) finalRaster2Model.getTranslateX()) < 0.01F);
// boolean isTranslateYInt=!(Math.abs(finalRaster2Model.getTranslateY() -
// (int) finalRaster2Model.getTranslateY()) < 0.01F);
//
// boolean isIdentity = finalRaster2Model.isIdentity() &&
// !hasScaleX&&!hasScaleY &&!hasTranslateX&&!hasTranslateY;
// // TODO how can we check that the a skew is harmelss????
// if(isIdentity){
// // TODO check if we are missing anything like tiling or such that
// comes from hints
// return new GranuleLoadingResult(raster, granuleLoadingShape,
// granuleUrl, doFiltering);
// }
//
// // TOLERANCE ON PIXELS SIZE
//
// // Check and see if the affine transform is in fact doing
// // a Translate operation. That is a scale by 1 and no rotation.
// // In which case call translate. Note that only integer translate
// // is applicable. For non-integer translate we'll have to do the
// // affine.
// // If the hints contain an ImageLayout hint, we can't use
// // TranslateIntOpImage since it isn't capable of dealing with that.
// // Get ImageLayout from renderHints if any.
// ImageLayout layout = RIFUtil.getImageLayoutHint(localHints);
// if ( !hasScaleX &&
// !hasScaleY &&
// !hasShearX&&
// !hasShearY&&
// isTranslateXInt&&
// isTranslateYInt&&
// layout == null) {
// // It's a integer translate
// return new GranuleLoadingResult(new TranslateIntOpImage(raster,
// localHints,
// (int) finalRaster2Model.getShearX(),
// (int)
// finalRaster2Model.getShearY()),granuleLoadingShape, granuleUrl, doFiltering);
// }
ImageWorker iw = new ImageWorker(raster);
iw.setRenderingHints(localHints);
iw.affine(finalRaster2Model, interpolation, request.getBackgroundValues());
return new GranuleLoadingResult(
iw.getRenderedImage(), granuleLoadingShape, granuleUrl, doFiltering);
}
} catch (IllegalStateException e) {
if (LOGGER.isLoggable(java.util.logging.Level.WARNING)) {
LOGGER.log(
java.util.logging.Level.WARNING,
new StringBuilder("Unable to load raster for granuleDescriptor ")
.append(this.toString())
.append(" with request ")
.append(request.toString())
.append(" Resulting in no granule loaded: Empty result")
.toString(),
e);
}
return null;
} catch (org.opengis.referencing.operation.NoninvertibleTransformException e) {
if (LOGGER.isLoggable(java.util.logging.Level.WARNING)) {
LOGGER.log(
java.util.logging.Level.WARNING,
new StringBuilder("Unable to load raster for granuleDescriptor ")
.append(this.toString())
.append(" with request ")
.append(request.toString())
.append(" Resulting in no granule loaded: Empty result")
.toString(),
e);
}
return null;
} catch (TransformException e) {
if (LOGGER.isLoggable(java.util.logging.Level.WARNING)) {
LOGGER.log(
java.util.logging.Level.WARNING,
new StringBuilder("Unable to load raster for granuleDescriptor ")
.append(this.toString())
.append(" with request ")
.append(request.toString())
.append(" Resulting in no granule loaded: Empty result")
.toString(),
e);
}
return null;
} finally {
try {
if (request.getReadType() != ReadType.JAI_IMAGEREAD && inStream != null) {
inStream.close();
}
} finally {
if (request.getReadType() != ReadType.JAI_IMAGEREAD && reader != null) {
reader.dispose();
}
}
}
}
/**
* Tests the {@link OverviewsController} with support for different resolutions/different number
* of overviews.
*
* <p>world_a.tif => Pixel Size = (0.833333333333333,-0.833333333333333); 4 overviews world_b.tif
* => Pixel Size = (1.406250000000000,-1.406250000000000); 2 overviews
*
* @throws IOException
* @throws MismatchedDimensionException
* @throws FactoryException
* @throws TransformException
*/
@Test
public void testHeterogeneousGranules()
throws IOException, MismatchedDimensionException, FactoryException, TransformException {
final CoordinateReferenceSystem WGS84 = CRS.decode("EPSG:4326", true);
final ReferencedEnvelope TEST_BBOX_A = new ReferencedEnvelope(-180, 0, -90, 90, WGS84);
final ReferencedEnvelope TEST_BBOX_B = new ReferencedEnvelope(0, 180, 0, 90, WGS84);
URL heterogeneousGranulesURL = TestData.url(this, "heterogeneous");
// //
//
// Initialize mosaic variables
//
// //
final Hints hints = new Hints(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM, WGS84);
final AbstractGridFormat format =
(AbstractGridFormat) GridFormatFinder.findFormat(heterogeneousGranulesURL, hints);
Assert.assertNotNull(format);
Assert.assertFalse("UknownFormat", format instanceof UnknownFormat);
final ImageMosaicReader reader =
(ImageMosaicReader) format.getReader(heterogeneousGranulesURL, hints);
Assert.assertNotNull(reader);
final int nOv = reader.getNumberOfOvervies();
final double[] hRes = reader.getHighestRes();
final RasterManager rasterManager = new RasterManager(reader);
// //
//
// Initialize granules related variables
//
// //
final File g1File = new File(DataUtilities.urlToFile(heterogeneousGranulesURL), "world_a.tif");
final File g2File = new File(DataUtilities.urlToFile(heterogeneousGranulesURL), "world_b.tif");
final ImageReadParam readParamsG1 = new ImageReadParam();
final ImageReadParam readParamsG2 = new ImageReadParam();
int imageIndexG1 = 0;
int imageIndexG2 = 0;
final GranuleDescriptor granuleDescriptor1 =
new GranuleDescriptor(g1File.getAbsolutePath(), TEST_BBOX_A, spi, (Geometry) null, true);
final GranuleDescriptor granuleDescriptor2 =
new GranuleDescriptor(g2File.getAbsolutePath(), TEST_BBOX_B, spi, (Geometry) null, true);
assertNotNull(granuleDescriptor1.toString());
assertNotNull(granuleDescriptor2.toString());
final OverviewsController ovControllerG1 = granuleDescriptor1.overviewsController;
final OverviewsController ovControllerG2 = granuleDescriptor2.overviewsController;
// //
//
// Initializing read request
//
// //
final GeneralEnvelope envelope = reader.getOriginalEnvelope();
final GridEnvelope originalRange = reader.getOriginalGridRange();
final Rectangle rasterArea =
new Rectangle(
0,
0,
(int) Math.ceil(originalRange.getSpan(0) / 9.0),
(int) Math.ceil(originalRange.getSpan(1) / 9.0));
final GridEnvelope2D range = new GridEnvelope2D(rasterArea);
final GridToEnvelopeMapper geMapper = new GridToEnvelopeMapper(range, envelope);
geMapper.setPixelAnchor(PixelInCell.CELL_CENTER);
final AffineTransform gridToWorld = geMapper.createAffineTransform();
final double requestedResolution[] =
new double[] {
XAffineTransform.getScaleX0(gridToWorld), XAffineTransform.getScaleY0(gridToWorld)
};
TestSet at = null;
if (nOv == 4 && Math.abs(hRes[0] - 0.833333333333) <= THRESHOLD) {
at = at1;
} else if (nOv == 2 && Math.abs(hRes[0] - 1.40625) <= THRESHOLD) {
at = at2;
} else {
return;
}
// //
//
// Starting OverviewsController tests
//
// //
final OverviewPolicy[] ovPolicies =
new OverviewPolicy[] {
OverviewPolicy.QUALITY,
OverviewPolicy.SPEED,
OverviewPolicy.NEAREST,
OverviewPolicy.IGNORE
};
for (int i = 0; i < ovPolicies.length; i++) {
OverviewPolicy ovPolicy = ovPolicies[i];
LOGGER.info("Testing with OverviewPolicy = " + ovPolicy.toString());
imageIndexG1 =
ReadParamsController.setReadParams(
requestedResolution,
ovPolicy,
DecimationPolicy.ALLOW,
readParamsG1,
rasterManager,
ovControllerG1);
imageIndexG2 =
ReadParamsController.setReadParams(
requestedResolution,
ovPolicy,
DecimationPolicy.ALLOW,
readParamsG2,
rasterManager,
ovControllerG2);
assertSame(at.ot[i].g1.imageIndex, imageIndexG1);
assertSame(at.ot[i].g2.imageIndex, imageIndexG2);
assertSame(at.ot[i].g1.ssx, readParamsG1.getSourceXSubsampling());
assertSame(at.ot[i].g1.ssy, readParamsG1.getSourceYSubsampling());
assertSame(at.ot[i].g2.ssx, readParamsG2.getSourceXSubsampling());
assertSame(at.ot[i].g2.ssy, readParamsG2.getSourceYSubsampling());
}
}
/**
* Computes the requested resolution which is going to be used for selecting overviews and or
* deciding decimation factors on the target coverage.
*
* <p>In case the requested envelope is in the same {@link CoordinateReferenceSystem} of the
* coverage we compute the resolution using the requested {@link MathTransform}. Notice that it
* must be a {@link LinearTransform} or else we fail.
*
* <p>In case the requested envelope is not in the same {@link CoordinateReferenceSystem} of the
* coverage we
*
* @throws DataSourceException in case something bad happens during reprojections and/or
* intersections.
*/
private void computeRequestedResolution() throws DataSourceException {
try {
// let's try to get the resolution from the requested gridToWorld
if (requestedGridToWorld instanceof LinearTransform) {
//
// the crs of the request and the one of the coverage are NOT the
// same and the conversion is not , we can get the resolution from envelope + raster
// directly
//
if (destinationToSourceTransform != null && !destinationToSourceTransform.isIdentity()) {
//
// compute the approximated resolution in the request crs, notice that we are
// assuming a reprojection that keeps the raster area unchanged hence
// the effect is a degradation of quality, but we might take that into account emprically
//
requestedResolution = null;
//
// // compute the raster that correspond to the crop bbox at the highest resolution
// final Rectangle sourceRasterArea = new GeneralGridEnvelope(
// CRS.transform(
// PixelTranslation.translate(rasterManager.getRaster2Model(),PixelInCell.CELL_CENTER,PixelInCell.CELL_CORNER).inverse(),
// cropBBox),PixelInCell.CELL_CORNER,false).toRectangle();
// XRectangle2D.intersect(sourceRasterArea,
// rasterManager.spatialDomainManager.coverageRasterArea, sourceRasterArea);
// if(sourceRasterArea.isEmpty())
// throw new DataSourceException("The request source raster area is empty");
final GridToEnvelopeMapper geMapper =
new GridToEnvelopeMapper(new GridEnvelope2D(destinationRasterArea), cropBBox);
final AffineTransform tempTransform = geMapper.createAffineTransform();
// final double scaleX=XAffineTransform.getScaleX0((AffineTransform)
// requestedGridToWorld)/XAffineTransform.getScaleX0(tempTransform);
// final double scaleY=XAffineTransform.getScaleY0((AffineTransform)
// requestedGridToWorld)/XAffineTransform.getScaleY0(tempTransform);
// //
// // empiric adjustment to get a finer resolution to have better quality when
// reprojecting
// // TODO make it parametric
// //
// requestedRasterScaleFactors= new double[2];
// requestedRasterScaleFactors[0]=scaleX*1.0;
// requestedRasterScaleFactors[1]=scaleY*1.0;
requestedResolution =
new double[] {
XAffineTransform.getScaleX0(tempTransform),
XAffineTransform.getScaleY0(tempTransform)
};
} else {
// the crs of the request and the one of the coverage are the
// same, we can get the resolution from the grid to world
requestedResolution =
new double[] {
XAffineTransform.getScaleX0(requestedGridToWorld),
XAffineTransform.getScaleY0(requestedGridToWorld)
};
}
} else
// should not happen
throw new UnsupportedOperationException(
Errors.format(ErrorKeys.UNSUPPORTED_OPERATION_$1, requestedGridToWorld.toString()));
// leave
return;
} catch (Throwable e) {
if (LOGGER.isLoggable(Level.INFO))
LOGGER.log(Level.INFO, "Unable to compute requested resolution", e);
}
//
// use the coverage resolution since we cannot compute the requested one
//
LOGGER.log(Level.WARNING, "Unable to compute requested resolution, using highest available");
requestedResolution = coverageProperties.fullResolution;
}
/**
* This method is responsible fro creating a world file to georeference an image given the image
* bounding box and the image geometry. The name of the file is composed by the name of the image
* file with a proper extension, depending on the format (see WorldImageFormat). The projection is
* in the world file.
*
* @param imageFile
* @param baseFile Basename and path for this image.
* @param ext
* @throws IOException In case we cannot create the world file.
* @throws TransformException
*/
private void createWorldFile(
final AffineTransform transform, final String ext, final String baseFile) throws IOException {
// /////////////////////////////////////////////////////////////////////
//
// CRS information
//
// ////////////////////////////////////////////////////////////////////
// final AffineTransform gridToWorld = (AffineTransform)
// gc.getGridGeometry ().getGridToCRS ();
final boolean lonFirst = (XAffineTransform.getSwapXY(transform) != -1);
// /////////////////////////////////////////////////////////////////////
//
// World File values
// It is worthwhile to note that we have to keep into account the fact
// that the axis could be swapped (LAT,lon) therefore when getting
// xPixSize and yPixSize we need to look for it a the right place
// inside the grid to world transform.
//
// ////////////////////////////////////////////////////////////////////
final double xPixelSize = (lonFirst) ? transform.getScaleX() : transform.getShearY();
final double rotation1 = (lonFirst) ? transform.getShearX() : transform.getScaleX();
final double rotation2 = (lonFirst) ? transform.getShearY() : transform.getScaleY();
final double yPixelSize = (lonFirst) ? transform.getScaleY() : transform.getShearX();
final double xLoc = transform.getTranslateX();
final double yLoc = transform.getTranslateY();
// /////////////////////////////////////////////////////////////////////
//
// writing world file
//
// ////////////////////////////////////////////////////////////////////
final StringBuffer buff = new StringBuffer(baseFile);
// looking for another extension
if (ext.substring(0, 4).equalsIgnoreCase(".tif")) {
buff.append(".tfw");
} else if (ext.substring(0, 4).equalsIgnoreCase(".png")) {
buff.append(".pgw");
} else if (ext.substring(0, 4).equalsIgnoreCase(".jpg")
|| ext.substring(0, 4).equalsIgnoreCase("jpeg")) {
buff.append(".jpw");
} else if (ext.substring(0, 4).equalsIgnoreCase(".gif")) {
buff.append(".gfw");
} else if (ext.substring(0, 4).equalsIgnoreCase(".bmp")) {
buff.append(".bpw");
} else {
buff.append(".tffw");
}
final File worldFile = new File(buff.toString());
LOG.debug("Writing world file: " + worldFile);
final PrintWriter out = new PrintWriter(new FileOutputStream(worldFile));
try {
out.println(xPixelSize);
out.println(rotation1);
out.println(rotation2);
out.println(yPixelSize);
out.println(xLoc);
out.println(yLoc);
out.flush();
} finally {
out.close();
}
}
