Examples of org.opengis.coverage.grid.GridCoverage

org.opengis.coverage.grid.GridCoverage
is.org/docs/01-004.pdf">Grid Coverage specification 1.0 @author Martin Desruisseaux (IRD) @since GeoAPI 1.0 @see RenderedImage @see javax.media.jai.PixelAccessor

        1);


    BufferedImage image = null;


    while (gridCoverages.hasNext()) {
      final GridCoverage currentCoverage = gridCoverages.next();
      final Envelope coverageEnv = currentCoverage.getEnvelope();
      final RenderedImage coverageImage = currentCoverage.getRenderedImage();
      if (image == null) {
        image = copyImage(
            imageWidth,
            imageHeight,
            backgroundColor,

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    final Geometry footprint = ((FitToIndexGridCoverage) entry).getFootprintWorldGeometry();
    if (footprint == null) {
      return;
    }


    final GridCoverage originalCoverage;
    Resolution resolution = null;
    if (entry instanceof FitToIndexGridCoverage) {
      originalCoverage = ((FitToIndexGridCoverage) entry).getOriginalCoverage();
      resolution = ((FitToIndexGridCoverage) entry).getResolution();
    }

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        final CoverageView metadataCoverageView = (CoverageView) metadata.get(CoverageView.COVERAGE_VIEW);
        assertEquals(metadataCoverageView, coverageView);


        final ResourcePool resPool = cat.getResourcePool();
        final ReferencedEnvelope bbox = coverageInfo.getLatLonBoundingBox();
        final GridCoverage coverage = resPool.getGridCoverage(coverageInfo, "regional_currents", bbox, null);
        assertEquals(coverage.getNumSampleDimensions(), 2);


        ((GridCoverage2D) coverage).dispose(true);
        final GridCoverageReader reader = resPool.getGridCoverageReader(coverageInfo, "regional_currents", null);
        final GranuleStore granules = (GranuleStore) ((StructuredGridCoverage2DReader) reader).getGranules("regional_currents", true);
        SimpleFeatureCollection granulesCollection = granules.getGranules(null);

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    }
    
    @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,

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        if(LOGGER.isLoggable(Level.FINE)){
            LOGGER.fine("Executing GetCoverage request on coverage :"+linfo.toString());
        }


        // === k, now start the execution
        GridCoverage coverage = null;
        try {


            // === extract all extensions for later usage
            Map<String, ExtensionItemType> extensions = extractExtensions(request);

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        final CoverageView metadataCoverageView = (CoverageView) metadata.get(CoverageView.COVERAGE_VIEW);
        assertEquals(metadataCoverageView, coverageView);


        final ResourcePool resPool = cat.getResourcePool();
        final ReferencedEnvelope bbox = coverageInfo.getLatLonBoundingBox();
        final GridCoverage coverage = resPool.getGridCoverage(coverageInfo, "waterView", bbox, null);
        assertEquals(coverage.getNumSampleDimensions(), 1);


        ((GridCoverage2D) coverage).dispose(true);
        final GridCoverageReader reader = resPool.getGridCoverageReader(coverageInfo, null);
        reader.dispose();
    }

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      //
      // /////////////////////////////////////////////////////////
      parameters.put(AbstractGridFormat.READ_GRIDGEOMETRY2D.getName().toString(),
          new GridGeometry2D(new GeneralGridEnvelope(destinationSize), destinationEnvelopeInSourceCRS));
  
      final GridCoverage coverage = coverageReader.read(CoverageUtils.getParameters(
                  coverageReader.getFormat().getReadParameters(), parameters, true));
  
      if ((coverage == null) || !(coverage instanceof GridCoverage2D)) {
          throw new IOException("The requested coverage could not be found.");
      }
  
      /**
       * Band Select
       */
      /*
      Coverage bandSelectedCoverage = null;
  
      bandSelectedCoverage = WCSUtils.bandSelect(request.getParameters(), coverage);
    */
      /**
       * Crop
       */
      final GridCoverage2D croppedGridCoverage = BilWCSUtils.crop(coverage,
              (GeneralEnvelope) coverage.getEnvelope(), cvCRS, destinationEnvelopeInSourceCRS,
              Boolean.TRUE);
      
      /**
       * Scale/Resampling (if necessary)
       */

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        //
        // Reading the coverage
        //
        // /////////////////////////////////////////////////////////
        
        GridCoverage gc  = reader.read(CoverageUtils.getParameters(
                    reader.getFormat().getReadParameters(), info.getParameters()));
        
        if ((gc == null) || !(gc instanceof GridCoverage2D)) {
            throw new IOException("The requested coverage could not be found.");
        }

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        GetLegendGraphicRequest req = new GetLegendGraphicRequest();
        CoverageInfo cInfo = getCatalog().getCoverageByName("world");
        assertNotNull(cInfo);


        GridCoverage coverage = cInfo.getGridCoverage(null, null);
        try {
            SimpleFeatureCollection feature;
            feature = FeatureUtilities.wrapGridCoverage((GridCoverage2D) coverage);
            req.setLayer(feature.getSchema());
            req.setStyle(multipleRulesStyle);
            req.setLegendOptions(new HashMap());
            
            final int HEIGHT_HINT = 30;
            req.setHeight(HEIGHT_HINT);
            
            // use default values for the rest of parameters
            this.legendProducer.buildLegendGraphic(req);


            BufferedImage image = this.legendProducer.buildLegendGraphic(req);


            // was the legend painted?
            assertNotBlank("testRainfall", image, LegendUtils.DEFAULT_BG_COLOR);
            
            // was the legend painted?
            assertNotBlank("testRainfall", image, LegendUtils.DEFAULT_BG_COLOR);
        } finally {
            RenderedImage ri = coverage.getRenderedImage();
            if(coverage instanceof GridCoverage2D) {
                ((GridCoverage2D) coverage).dispose(true);
            }
            if(ri instanceof PlanarImage) {
                ImageUtilities.disposePlanarImageChain((PlanarImage) ri);

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        layers.add(ftInfo.getFeatureType());
        
        CoverageInfo cInfo = getCatalog().getCoverageByName("world");
        assertNotNull(cInfo);


        GridCoverage coverage = cInfo.getGridCoverage(null, null);
        try {
          SimpleFeatureCollection feature;
          feature = FeatureUtilities.wrapGridCoverage((GridCoverage2D) coverage);
          layers.add(feature.getSchema());
          
          req.setLayers(layers);
          
          List<Style> styles=new ArrayList<Style>();
          Style style1= getCatalog().getStyleByName(
                  MockData.ROAD_SEGMENTS.getLocalPart()).getStyle();
          styles.add(style1);
          
          Style style2= getCatalog().getStyleByName("rainfall").getStyle();
          styles.add(style2);
          req.setStyles(styles);
          
          this.legendProducer.buildLegendGraphic(req);
  
          BufferedImage image = this.legendProducer.buildLegendGraphic(req);
  
          
          // vector layer
          assertPixel(image, 10, 10+titleHeight, new Color(192,160,0));
          
          assertPixel(image, 10, 30+titleHeight, new Color(0,0,0));
          
          assertPixel(image, 10, 50+titleHeight, new Color(224,64,0));
          
          // coverage layer        
          assertPixel(image, 10, 70+titleHeight*2, new Color(115,38,0));
    } finally {
          RenderedImage ri = coverage.getRenderedImage();
          if(coverage instanceof GridCoverage2D) {
              ((GridCoverage2D) coverage).dispose(true);
          }
          if(ri instanceof PlanarImage) {
              ImageUtilities.disposePlanarImageChain((PlanarImage) ri);

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