Examples of org.geotools.gce.geotiff.GeoTiffReader

org.geotools.gce.geotiff.GeoTiffReader
this class is responsible for exposing the data and the Georeferencing metadata available to the Geotools library. This reader is heavily based on the capabilities provided by the ImageIO tools and JAI libraries. @author Bryce Nordgren, USDA Forest Service @author Simone Giannecchini @since 2.1 @source $URL$

        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        // check the tiff structure is the one requested
        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(1260, reader.getOriginalGridRange().getSpan(0));
        assertEquals(1260, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertNotNull(coverage);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);
        
    }

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        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        // check the tiff structure is the one requested
        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(1000, reader.getOriginalGridRange().getSpan(0));
        assertEquals(1000, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertNotNull(coverage);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);     
    }

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        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        // check the tiff structure is the one requested
        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(200, reader.getOriginalGridRange().getSpan(0));
        assertEquals(300, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertNotNull(coverage);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);  
    }

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        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        // check the tiff structure is the one requested
        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(900, reader.getOriginalGridRange().getSpan(0));
        assertEquals(900, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertNotNull(coverage);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage); 
    }

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        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);
        
        // check we can read it as a TIFF and it is similare to the origina one
        GeoTiffReader readerTarget = new GeoTiffReader(file);
        GridCoverage2D targetCoverage = null, sourceCoverage=null;
        try {
            targetCoverage = readerTarget.read(null);
            sourceCoverage=(GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
            
            // checks
            assertEquals(sourceCoverage.getCoordinateReferenceSystem(), targetCoverage.getCoordinateReferenceSystem());
            assertEnvelopeEquals(sourceCoverage, targetCoverage);
            assertEquals(sourceCoverage.getGridGeometry().getGridRange().getSpan(0)/2, targetCoverage.getGridGeometry().getGridRange().getSpan(0));
            assertEquals(sourceCoverage.getGridGeometry().getGridRange().getSpan(1)/2, targetCoverage.getGridGeometry().getGridRange().getSpan(1));
        } finally {
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                LOGGER.log(Level.WARNING,e.getLocalizedMessage(),e);
            }
            try{
                scheduleForCleaning(targetCoverage);
            } catch (Exception e) {
                LOGGER.log(Level.WARNING,e.getLocalizedMessage(),e);
            }
            try{
                scheduleForCleaning(sourceCoverage);
            } catch (Exception e) {
                LOGGER.log(Level.WARNING,e.getLocalizedMessage(),e);
            }
        }
        
        // upsample
        response = getAsServletResponse("wcs?request=GetCoverage&service=WCS&version=2.0.1" +
                        "&coverageId=wcs__BlueMarble&&Format=image/tiff&SCALEFACTOR=2");
        
        assertEquals("image/tiff", response.getContentType());
        tiffContents = getBinary(response);
        file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);
        
        // check we can read it as a TIFF and it is similare to the origina one
        readerTarget = new GeoTiffReader(file);
        try {
            targetCoverage = readerTarget.read(null);
            sourceCoverage=(GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
            
            // checks
            assertEquals(sourceCoverage.getCoordinateReferenceSystem(), targetCoverage.getCoordinateReferenceSystem());
            assertEnvelopeEquals(sourceCoverage, targetCoverage);
            assertEquals(sourceCoverage.getGridGeometry().getGridRange().getSpan(0)*2, targetCoverage.getGridGeometry().getGridRange().getSpan(0));
            assertEquals(sourceCoverage.getGridGeometry().getGridRange().getSpan(1)*2, targetCoverage.getGridGeometry().getGridRange().getSpan(1));
        } finally {
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                LOGGER.log(Level.WARNING,e.getLocalizedMessage(),e);
            }
            try{
                scheduleForCleaning(targetCoverage);

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        assertEquals("image/tiff", response.getContentType());
        byte[] tiffContents = getBinary(response);
        File file = new File("./target/bm_full.tiff");
        FileUtils.writeByteArrayToFile(file, tiffContents);
        
        GeoTiffReader readerTarget = new GeoTiffReader(file);
        GridCoverage2D targetCoverage = null, sourceCoverage=null;
        try {
            targetCoverage = readerTarget.read(null);
            sourceCoverage=(GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
            
            // checks
            assertEquals(sourceCoverage.getGridGeometry().getGridRange(), targetCoverage.getGridGeometry().getGridRange());
            assertEquals(sourceCoverage.getCoordinateReferenceSystem(), targetCoverage.getCoordinateReferenceSystem());
            assertEquals(sourceCoverage.getEnvelope(), targetCoverage.getEnvelope());
        } finally {
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                // TODO: handle exception
            }
            try{
                scheduleForCleaning(targetCoverage);

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        FileUtils.writeByteArrayToFile(file, tiffContents);
        
        final Hints hints= new Hints();
        hints.put(Hints.FORCE_AXIS_ORDER_HONORING, "EPSG");
        hints.put(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.FALSE);
        GeoTiffReader readerTarget = new GeoTiffReader(file,hints);
        GridCoverage2D targetCoverage = null, sourceCoverage=null;
        try {
            targetCoverage = readerTarget.read(null);
            sourceCoverage=(GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
            
            // checks
            assertEquals(sourceCoverage.getGridGeometry().getGridRange(), targetCoverage.getGridGeometry().getGridRange());
            assertEquals(CRS.getAxisOrder(targetCoverage.getCoordinateReferenceSystem()),AxisOrder.NORTH_EAST);
            
            final GeneralEnvelope transformedEnvelope=CRS.transform((AffineTransform2D)CoverageUtilities.AXES_SWAP,targetCoverage.getEnvelope());
            transformedEnvelope.setCoordinateReferenceSystem(sourceCoverage.getCoordinateReferenceSystem());
            assertEquals(sourceCoverage.getEnvelope(), transformedEnvelope);
        } finally {
            // reinforce old settings
            wcsInfo.setLatLon(oldLatLon);
            getGeoServer().save(wcsInfo);
            
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                // TODO: handle exception
            }
            try{
                scheduleForCleaning(targetCoverage);

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        FileUtils.writeByteArrayToFile(file, tiffContents);


        final Hints hints = new Hints();
        hints.put(Hints.FORCE_AXIS_ORDER_HONORING, "EPSG");
        hints.put(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.TRUE);
        GeoTiffReader readerTarget = new GeoTiffReader(file, hints);
        GridCoverage2D targetCoverage = null, sourceCoverage = null;
        try {
            targetCoverage = readerTarget.read(null);
            sourceCoverage = (GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble")
                    .getGridCoverageReader(null, null).read(null);


            // checks
            assertEquals(sourceCoverage.getGridGeometry().getGridRange(), targetCoverage
                    .getGridGeometry().getGridRange());
            assertEquals(CRS.getAxisOrder(targetCoverage.getCoordinateReferenceSystem()),
                    AxisOrder.EAST_NORTH);


            assertEquals(sourceCoverage.getEnvelope(), targetCoverage.getEnvelope());
        } finally {
            // reinforce old settings
            wcsInfo.setLatLon(oldLatLon);
            getGeoServer().save(wcsInfo);


            try {
                readerTarget.dispose();
            } catch (Exception e) {
                // TODO: handle exception
            }
            try {
                scheduleForCleaning(targetCoverage);

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    private void checkCoverageTrimmingLatitudeNativeCRS(byte[] tiffContents) throws IOException,
            DataSourceException, NoSuchAuthorityCodeException, FactoryException {
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        GeoTiffReader readerTarget = new GeoTiffReader(file);
        GridCoverage2D targetCoverage = null;
        try {
            targetCoverage = readerTarget.read(null);


            // checks
            final GridEnvelope gridRange = targetCoverage.getGridGeometry().getGridRange();
            
            final GeneralEnvelope expectedEnvelope= new GeneralEnvelope(
                    new double[]{targetCoverage.getEnvelope().getMinimum(0),-43.5},
                    new double[]{targetCoverage.getEnvelope().getMaximum(0),-43.0});    
            expectedEnvelope.setCoordinateReferenceSystem(CRS.decode("EPSG:4326", true));


            final double scale = getScale(targetCoverage);
            assertEnvelopeEquals(expectedEnvelope,scale,(GeneralEnvelope) targetCoverage.getEnvelope(),scale);
            assertTrue(CRS.equalsIgnoreMetadata(targetCoverage.getCoordinateReferenceSystem(), expectedEnvelope.getCoordinateReferenceSystem()));
            assertEquals(gridRange.getSpan(0), 360);
            assertEquals(gridRange.getSpan(1), 120);
            
        } finally {
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                // TODO: handle exception
            }
            try{
                scheduleForCleaning(targetCoverage);

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        assertEquals("image/tiff", response.getContentType());
        byte[] tiffContents = getBinary(response);
        File file = File.createTempFile("bm_gtiff", "bm_gtiff.tiff", new File("./target"));
        FileUtils.writeByteArrayToFile(file, tiffContents);


        GeoTiffReader readerTarget = new GeoTiffReader(file);
        GridCoverage2D targetCoverage = null;
        try {
            targetCoverage = readerTarget.read(null);


            // checks
            final GridEnvelope gridRange = targetCoverage.getGridGeometry().getGridRange();
            
            final GeneralEnvelope expectedEnvelope= new GeneralEnvelope(
                    new double[]{146.5,-43.5},
                    new double[]{147.0,-43.0});
            expectedEnvelope.setCoordinateReferenceSystem(CRS.decode("EPSG:4326", true));


            final double scale = getScale(targetCoverage);
            assertEnvelopeEquals(expectedEnvelope,scale,(GeneralEnvelope) targetCoverage.getEnvelope(),scale);
            assertTrue(CRS.equalsIgnoreMetadata(targetCoverage.getCoordinateReferenceSystem(), expectedEnvelope.getCoordinateReferenceSystem()));
            assertEquals(gridRange.getSpan(0), 120);
            assertEquals(gridRange.getSpan(1), 120);
            
        } finally {
            try{
                readerTarget.dispose();
            } catch (Exception e) {
                // TODO: handle exception
            }
            try{
                scheduleForCleaning(targetCoverage);

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