@Override
public String toString() {
// build a decent representation for this level
final StringBuilder buffer = new StringBuilder();
buffer
.append("Description of a granuleDescriptor level")
.append("\n")
.append("width:\t\t")
.append(width)
.append("\n")
.append("height:\t\t")
.append(height)
.append("\n")
.append("scaleX:\t\t")
.append(scaleX)
.append("\n")
.append("scaleY:\t\t")
.append(scaleY)
.append("\n")
.append("baseToLevelTransform:\t\t")
.append(baseToLevelTransform.toString())
.append("\n")
.append("gridToWorldTransform:\t\t")
.append(gridToWorldTransformCorner.toString())
.append("\n");
return buffer.toString();
}
@Test
public void testDomainSubsetRxRy() throws Exception {
// get base coverage
final GridCoverage baseCoverage =
catalog.getCoverageByName(TASMANIA_BM.getLocalPart()).getGridCoverage(null, null);
final AffineTransform2D expectedTx =
(AffineTransform2D) baseCoverage.getGridGeometry().getGridToCRS();
final GeneralEnvelope originalEnvelope = (GeneralEnvelope) baseCoverage.getEnvelope();
final GeneralEnvelope newEnvelope = new GeneralEnvelope(originalEnvelope);
newEnvelope.setEnvelope(
originalEnvelope.getMinimum(0),
originalEnvelope.getMaximum(1) - originalEnvelope.getSpan(1) / 2,
originalEnvelope.getMinimum(0) + originalEnvelope.getSpan(0) / 2,
originalEnvelope.getMaximum(1));
final MathTransform cornerWorldToGrid =
PixelTranslation.translate(expectedTx, PixelInCell.CELL_CENTER, PixelInCell.CELL_CORNER);
final GeneralGridEnvelope expectedGridEnvelope =
new GeneralGridEnvelope(
CRS.transform(cornerWorldToGrid.inverse(), newEnvelope),
PixelInCell.CELL_CORNER,
false);
final StringBuilder envelopeBuilder = new StringBuilder();
envelopeBuilder.append(newEnvelope.getMinimum(0)).append(",");
envelopeBuilder.append(newEnvelope.getMinimum(1)).append(",");
envelopeBuilder.append(newEnvelope.getMaximum(0)).append(",");
envelopeBuilder.append(newEnvelope.getMaximum(1));
Map<String, Object> raw = baseMap();
final String layerID = getLayerId(TASMANIA_BM);
raw.put("sourcecoverage", layerID);
raw.put("version", "1.0.0");
raw.put("format", "image/geotiff");
raw.put("BBox", envelopeBuilder.toString());
raw.put("crs", "EPSG:4326");
raw.put("resx", Double.toString(expectedTx.getScaleX()));
raw.put("resy", Double.toString(Math.abs(expectedTx.getScaleY())));
final GridCoverage[] coverages = executeGetCoverageKvp(raw);
final GridCoverage2D result = (GridCoverage2D) coverages[0];
assertTrue(coverages.length == 1);
final AffineTransform2D tx = (AffineTransform2D) result.getGridGeometry().getGridToCRS();
assertEquals("resx", expectedTx.getScaleX(), tx.getScaleX(), 1E-6);
assertEquals("resx", Math.abs(expectedTx.getScaleY()), Math.abs(tx.getScaleY()), 1E-6);
final GridEnvelope gridEnvelope = result.getGridGeometry().getGridRange();
assertEquals("w", 180, gridEnvelope.getSpan(0));
assertEquals("h", 180, gridEnvelope.getSpan(1));
assertEquals("grid envelope", expectedGridEnvelope, gridEnvelope);
// dispose
CoverageCleanerCallback.disposeCoverage(baseCoverage);
CoverageCleanerCallback.disposeCoverage(coverages[0]);
}
/**
* 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();
}
}
}
}
private void init(
final BoundingBox granuleBBOX,
final URL granuleUrl,
final ImageReaderSpi suggestedSPI,
final Geometry inclusionGeometry,
final boolean heterogeneousGranules,
final boolean handleArtifactsFiltering) {
this.granuleBBOX = ReferencedEnvelope.reference(granuleBBOX);
this.granuleUrl = granuleUrl;
this.inclusionGeometry = inclusionGeometry;
this.handleArtifactsFiltering = handleArtifactsFiltering;
filterMe = handleArtifactsFiltering && inclusionGeometry != null;
// create the base grid to world transformation
ImageInputStream inStream = null;
ImageReader reader = null;
try {
//
// get info about the raster we have to read
//
// get a stream
if (cachedStreamSPI == null) {
cachedStreamSPI = ImageIOExt.getImageInputStreamSPI(granuleUrl, true);
if (cachedStreamSPI == null) {
final File file = DataUtilities.urlToFile(granuleUrl);
if (file != null) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, Utils.getFileInfo(file));
}
}
throw new IllegalArgumentException(
"Unable to get an input stream for the provided granule " + granuleUrl.toString());
}
}
assert cachedStreamSPI != null : "no cachedStreamSPI available!";
inStream =
cachedStreamSPI.createInputStreamInstance(
granuleUrl, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
if (inStream == null) {
final File file = DataUtilities.urlToFile(granuleUrl);
if (file != null) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING, Utils.getFileInfo(file));
}
}
throw new IllegalArgumentException(
"Unable to get an input stream for the provided file " + granuleUrl.toString());
}
// get a reader and try to cache the suggested SPI first
if (cachedReaderSPI == null) {
inStream.mark();
if (suggestedSPI != null && suggestedSPI.canDecodeInput(inStream)) {
cachedReaderSPI = suggestedSPI;
inStream.reset();
} else {
inStream.mark();
reader = ImageIOExt.getImageioReader(inStream);
if (reader != null) cachedReaderSPI = reader.getOriginatingProvider();
inStream.reset();
}
}
reader = cachedReaderSPI.createReaderInstance();
if (reader == null)
throw new IllegalArgumentException(
"Unable to get an ImageReader for the provided file " + granuleUrl.toString());
reader.setInput(inStream);
// get selected level and base level dimensions
final Rectangle originalDimension = Utils.getDimension(0, reader);
// build the g2W for this tile, in principle we should get it
// somehow from the tile itself or from the index, but at the moment
// we do not have such info, hence we assume that it is a simple
// scale and translate
final GridToEnvelopeMapper geMapper =
new GridToEnvelopeMapper(new GridEnvelope2D(originalDimension), granuleBBOX);
geMapper.setPixelAnchor(
PixelInCell
.CELL_CENTER); // this is the default behavior but it is nice to write it down anyway
this.baseGridToWorld = geMapper.createAffineTransform();
try {
if (inclusionGeometry != null) {
geMapper.setPixelAnchor(PixelInCell.CELL_CORNER);
Geometry mapped = JTS.transform(inclusionGeometry, geMapper.createTransform().inverse());
this.granuleROIShape = new ROIGeometry(mapped);
}
} catch (TransformException e1) {
throw new IllegalArgumentException(e1);
}
// add the base level
this.granuleLevels.put(
Integer.valueOf(0),
new GranuleOverviewLevelDescriptor(
1, 1, originalDimension.width, originalDimension.height));
////////////////////// Setting overviewController ///////////////////////
if (heterogeneousGranules) {
// //
//
// Right now we are setting up overviewsController by assuming that
// overviews are internal images as happens in TIFF images
// We can improve this by leveraging on coverageReaders
//
// //
// Getting the first level descriptor
final GranuleOverviewLevelDescriptor baseOverviewLevelDescriptor = granuleLevels.get(0);
// Variables initialization
final int numberOfOvervies = reader.getNumImages(true) - 1;
final AffineTransform2D baseG2W = baseOverviewLevelDescriptor.getGridToWorldTransform();
final int width = baseOverviewLevelDescriptor.getWidth();
final int height = baseOverviewLevelDescriptor.getHeight();
final double resX = AffineTransform2D.getScaleX0(baseG2W);
final double resY = AffineTransform2D.getScaleY0(baseG2W);
final double[] highestRes = new double[] {resX, resY};
final double[][] overviewsResolution = new double[numberOfOvervies][2];
// Populating overviews and initializing overviewsController
for (int i = 0; i < numberOfOvervies; i++) {
overviewsResolution[i][0] = (highestRes[0] * width) / reader.getWidth(i + 1);
overviewsResolution[i][1] = (highestRes[1] * height) / reader.getWidth(i + 1);
}
overviewsController =
new OverviewsController(highestRes, numberOfOvervies, overviewsResolution);
}
//////////////////////////////////////////////////////////////////////////
} catch (IllegalStateException e) {
throw new IllegalArgumentException(e);
} catch (IOException e) {
throw new IllegalArgumentException(e);
} finally {
// close/dispose stream and readers
try {
if (inStream != null) {
inStream.close();
}
} catch (Throwable e) {
throw new IllegalArgumentException(e);
} finally {
if (reader != null) {
reader.dispose();
}
}
}
}
/**
* Encodes the DomainSet as per the GML spec of the provided {@link GridCoverage2D}
*
* <p>e.g.:
*
* <pre>{@code
* <gml:domainSet>
* <gml:Grid gml:id="gr0001_C0001" dimension="2">
* <gml:limits>
* <gml:GridEnvelope>
* <gml:low>1 1</gml:low>
* <gml:high>5 3</gml:high>
* </gml:GridEnvelope>
* </gml:limits>
* <gml:axisLabels>Lat Long</gml:axisLabels>
* </gml:Grid>
* </gml:domainSet>
* }</pre>
*
* @param gc2d the {@link GridCoverage2D} for which to encode the DomainSet.
* @param srsName
* @param axesSwap
*/
public void handleDomainSet(
GridGeometry2D gg2D, int gridDimension, String gcName, String srsName, boolean axesSwap) {
// setup vars
final String gridId = "grid00__" + gcName;
// Grid Envelope
final GridEnvelope gridEnvelope = gg2D.getGridRange();
final StringBuilder lowSb = new StringBuilder();
for (int i : gridEnvelope.getLow().getCoordinateValues()) {
lowSb.append(i).append(' ');
}
final StringBuilder highSb = new StringBuilder();
for (int i : gridEnvelope.getHigh().getCoordinateValues()) {
highSb.append(i).append(' ');
}
// build the fragment
final AttributesImpl gridAttrs = new AttributesImpl();
gridAttrs.addAttribute("", "gml:id", "gml:id", "", gridId);
gridAttrs.addAttribute("", "dimension", "dimension", "", String.valueOf(gridDimension));
start("gml:domainSet");
start("gml:RectifiedGrid", gridAttrs);
start("gml:limits");
// GridEnvelope
start("gml:GridEnvelope");
element("gml:low", lowSb.toString().trim());
element("gml:high", highSb.toString().trim());
end("gml:GridEnvelope");
end("gml:limits");
// Axis Label
element("gml:axisLabels", "i j");
final MathTransform2D transform = gg2D.getGridToCRS2D(PixelOrientation.CENTER);
if (!(transform instanceof AffineTransform2D)) {
throw new IllegalStateException("Invalid grid to worl provided:" + transform.toString());
}
final AffineTransform2D g2W = (AffineTransform2D) transform;
// Origin
// we use ULC as per our G2W transformation
final AttributesImpl pointAttr = new AttributesImpl();
pointAttr.addAttribute("", "gml:id", "gml:id", "", "p00_" + gcName);
pointAttr.addAttribute("", "srsName", "srsName", "", srsName);
start("gml:origin");
start("gml:Point", pointAttr);
element(
"gml:pos",
axesSwap
? g2W.getTranslateY() + " " + g2W.getTranslateX()
: g2W.getTranslateX() + " " + g2W.getTranslateY());
end("gml:Point");
end("gml:origin");
// Offsets
final AttributesImpl offsetAttr = new AttributesImpl();
offsetAttr.addAttribute("", "srsName", "srsName", "", srsName);
// notice the orientation of the transformation I create. The origin of the coordinates
// in this grid is not at UPPER LEFT like in our grid to world but at LOWER LEFT !!!
element(
"gml:offsetVector",
Double.valueOf(axesSwap ? g2W.getShearX() : g2W.getScaleX())
+ " "
+ Double.valueOf(axesSwap ? g2W.getScaleX() : g2W.getShearX()),
offsetAttr);
element(
"gml:offsetVector",
Double.valueOf(axesSwap ? g2W.getScaleY() : g2W.getShearY())
+ " "
+ Double.valueOf(axesSwap ? g2W.getShearY() : g2W.getScaleY()),
offsetAttr);
end("gml:RectifiedGrid");
end("gml:domainSet");
}
/**
* Compare two grid to world transformations
*
* @param expectedTx
* @param tx
*/
private static void compareGrid2World(AffineTransform2D expectedTx, AffineTransform2D tx) {
assertEquals("scalex", tx.getScaleX(), expectedTx.getScaleX(), 1E-6);
assertEquals("scaley", tx.getScaleY(), expectedTx.getScaleY(), 1E-6);
assertEquals("shearx", tx.getShearX(), expectedTx.getShearX(), 1E-6);
assertEquals("sheary", tx.getShearY(), expectedTx.getShearY(), 1E-6);
assertEquals("translatex", tx.getTranslateX(), expectedTx.getTranslateX(), 1E-6);
assertEquals("translatey", tx.getTranslateY(), expectedTx.getTranslateY(), 1E-6);
}