示例#1
0
  GranuleOverviewLevelDescriptor getLevel(final int index) {

    // load level
    // create the base grid to world transformation
    ImageInputStream inStream = null;
    ImageReader reader = null;
    try {

      // get a stream
      assert cachedStreamSPI != null : "no cachedStreamSPI available!";
      inStream =
          cachedStreamSPI.createInputStreamInstance(
              granuleUrl, ImageIO.getUseCache(), ImageIO.getCacheDirectory());
      if (inStream == null)
        throw new IllegalArgumentException(
            "Unable to create an inputstream for the granuleurl:"
                + (granuleUrl != null ? granuleUrl : "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)
        throw new IllegalArgumentException(
            "Unable to get an ImageReader for the provided file " + granuleUrl.toString());
      reader.setInput(inStream);

      // call internal method which will close everything
      return getLevel(index, reader);

    } catch (IllegalStateException e) {

      // clean up
      try {
        if (inStream != null) inStream.close();
      } catch (Throwable ee) {

      } finally {
        if (reader != null) reader.dispose();
      }

      throw new IllegalArgumentException(e);

    } catch (IOException e) {

      // clean up
      try {
        if (inStream != null) inStream.close();
      } catch (Throwable ee) {
      } finally {
        if (reader != null) reader.dispose();
      }

      throw new IllegalArgumentException(e);
    }
  }
  /**
   * This method reads in the TIFF image, constructs an appropriate CRS, determines the math
   * transform from raster to the CRS model, and constructs a GridCoverage.
   *
   * @param params currently ignored, potentially may be used for hints.
   * @return grid coverage represented by the image
   * @throws IOException on any IO related troubles
   */
  public GridCoverage2D read(GeneralParameterValue[] params) throws IOException {
    GeneralEnvelope requestedEnvelope = null;
    Rectangle dim = null;
    Color inputTransparentColor = null;
    OverviewPolicy overviewPolicy = null;
    int[] suggestedTileSize = null;
    if (params != null) {

      //
      // Checking params
      //
      if (params != null) {
        for (int i = 0; i < params.length; i++) {
          final ParameterValue param = (ParameterValue) params[i];
          final ReferenceIdentifier name = param.getDescriptor().getName();
          if (name.equals(AbstractGridFormat.READ_GRIDGEOMETRY2D.getName())) {
            final GridGeometry2D gg = (GridGeometry2D) param.getValue();
            requestedEnvelope = new GeneralEnvelope((Envelope) gg.getEnvelope2D());
            dim = gg.getGridRange2D().getBounds();
            continue;
          }
          if (name.equals(AbstractGridFormat.OVERVIEW_POLICY.getName())) {
            overviewPolicy = (OverviewPolicy) param.getValue();
            continue;
          }
          if (name.equals(AbstractGridFormat.INPUT_TRANSPARENT_COLOR.getName())) {
            inputTransparentColor = (Color) param.getValue();
            continue;
          }
          if (name.equals(AbstractGridFormat.SUGGESTED_TILE_SIZE.getName())) {
            String suggestedTileSize_ = (String) param.getValue();
            if (suggestedTileSize_ != null && suggestedTileSize_.length() > 0) {
              suggestedTileSize_ = suggestedTileSize_.trim();
              int commaPosition = suggestedTileSize_.indexOf(",");
              if (commaPosition < 0) {
                int tileDim = Integer.parseInt(suggestedTileSize_);
                suggestedTileSize = new int[] {tileDim, tileDim};
              } else {
                int tileW = Integer.parseInt(suggestedTileSize_.substring(0, commaPosition));
                int tileH = Integer.parseInt(suggestedTileSize_.substring(commaPosition + 1));
                suggestedTileSize = new int[] {tileW, tileH};
              }
            }
            continue;
          }
        }
      }
    }

    //
    // set params
    //
    Integer imageChoice = new Integer(0);
    final ImageReadParam readP = new ImageReadParam();
    try {
      imageChoice = setReadParams(overviewPolicy, readP, requestedEnvelope, dim);
    } catch (TransformException e) {
      new DataSourceException(e);
    }

    //
    // IMAGE READ OPERATION
    //
    Hints newHints = null;
    if (suggestedTileSize != null) {
      newHints = hints.clone();
      final ImageLayout layout = new ImageLayout();
      layout.setTileGridXOffset(0);
      layout.setTileGridYOffset(0);
      layout.setTileHeight(suggestedTileSize[1]);
      layout.setTileWidth(suggestedTileSize[0]);
      newHints.add(new RenderingHints(JAI.KEY_IMAGE_LAYOUT, layout));
    }
    final ParameterBlock pbjRead = new ParameterBlock();
    if (extOvrImgChoice >= 0 && imageChoice >= extOvrImgChoice) {
      pbjRead.add(
          ovrInStreamSPI.createInputStreamInstance(
              ovrSource, ImageIO.getUseCache(), ImageIO.getCacheDirectory()));
      pbjRead.add(imageChoice - extOvrImgChoice);
    } else {
      pbjRead.add(
          inStreamSPI != null
              ? inStreamSPI.createInputStreamInstance(
                  source, ImageIO.getUseCache(), ImageIO.getCacheDirectory())
              : ImageIO.createImageInputStream(source));
      pbjRead.add(imageChoice);
    }
    pbjRead.add(Boolean.FALSE);
    pbjRead.add(Boolean.FALSE);
    pbjRead.add(Boolean.FALSE);
    pbjRead.add(null);
    pbjRead.add(null);
    pbjRead.add(readP);
    pbjRead.add(READER_SPI.createReaderInstance());
    RenderedOp coverageRaster =
        JAI.create("ImageRead", pbjRead, newHints != null ? (RenderingHints) newHints : null);

    //
    // MASKING INPUT COLOR as indicated
    //
    if (inputTransparentColor != null) {
      coverageRaster =
          new ImageWorker(coverageRaster)
              .setRenderingHints(newHints)
              .makeColorTransparent(inputTransparentColor)
              .getRenderedOperation();
    }

    AffineTransform rasterToModel = getRescaledRasterToModel(coverageRaster);
    try {
      return createCoverage(coverageRaster, ProjectiveTransform.create(rasterToModel));
    } catch (Exception e) {
      // dispose and close file
      ImageUtilities.disposePlanarImageChain(coverageRaster);

      // rethrow
      if (e instanceof DataSourceException) {
        throw (DataSourceException) e;
      }
      throw new DataSourceException(e);
    }
  }
  /**
   * 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) {
        }
    }
  }
示例#4
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();
        }
      }
    }
  }
示例#5
0
  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();
        }
      }
    }
  }