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 $URL$

    }


    @Test
    public void testCreateRasterEntry() throws Exception {
        GeoTiffFormat format = new GeoTiffFormat();
        GeoTiffReader reader = format.getReader(setUpGeoTiff());
        GridCoverage2D cov = reader.read(null);


        RasterEntry entry = new RasterEntry();
        entry.setTableName("world");


        geopkg.add(entry, cov, format);

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        File file = File.createTempFile("test-image", ".tiff");
        GeoTiffWriter writer = new GeoTiffWriter(file);
        writer.write(coverage, null);
        writer.dispose();
        
        reader = new GeoTiffReader(file);
    }

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        }
        ImageManager imageManager = null;
        final File file = new File(filePath);
        ImageInputStream stream = null;
        ImageReader reader = null;
        GeoTiffReader gtReader = null;
        try {
            if (file.exists() && file.canRead()) {
                
                if (!parent.defaultValues.isGeoSpatial){
                    stream = ImageIO.createImageInputStream(file);
                    reader = Utils.getReader(stream);
                    if (reader != null) {
                        reader.setInput(stream);
                        
                        // Setting up properties
                        final ImageReaderSpi spi = reader.getOriginatingProvider();
                        final int width = reader.getWidth(0);
                        final int height = reader.getHeight(0);
                        int numOverviews = reader.getNumImages(false) - 1; 
                        if (numOverviews < 0) {
                            numOverviews = 0;
                        }
                        final long lastModified = file.lastModified();
                        final ImageProperty property = new ImageProperty(filePath, width, height, numOverviews, spi, lastModified);
                        imageManager = new ImageManager(property);
    
                    } else {
                        throw new DataSourceException("Unable to get a reader for the specified path " + filePath);
                    }
                } else {
                    gtReader = new GeoTiffReader(file);
                    GeneralEnvelope envelope = gtReader.getOriginalEnvelope();
                    GridEnvelope range = gtReader.getOriginalGridRange();
                    final long lastModified = file.lastModified();
                    final ImageProperty property = new ImageProperty(filePath, range.getSpan(0), range.getSpan(1),
                            0, Utils.TIFF_SPI, lastModified);
                    property.setEnvelope(envelope);
                    property.setGeoSpatial(true);
                    imageManager = new ImageManager(property);
                }
            } else {
                throw new DataSourceException("The specified path doesn't exist or can't be read: " + filePath);
            }
        } catch (IOException ioe) {
            DataSourceException dse = new DataSourceException("IOException occurred while accessing the specified path " + filePath);
            dse.initCause(ioe);
            throw dse;
        
        } finally {
            // Release resources. Close stream and dispose reader
            if (stream != null) {
                try {
                    stream.close();
                } catch (Throwable t) {


                }
            }
            if (reader != null) {
                try {
                    reader.dispose();
                } catch (Throwable t) {


                }
            }
            if (gtReader != null) {
                try {
                    gtReader.dispose();
                } catch (Throwable t) {


                }
            }
        }

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        Multipart multipart = (Multipart) body.getContent();
        return multipart;
    }


    private GridCoverage2D readCoverage(InputStream is) throws Exception {
        GeoTiffReader reader = new GeoTiffReader(is);
        GridCoverage2D coverage = (GridCoverage2D) reader.read(null);
        reader.dispose();
        return coverage;
    }

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        // did we get lucky and all we need to do is to copy a file over?
        final Object fileSource = coverage.getProperty(AbstractGridCoverage2DReader.FILE_SOURCE_PROPERTY);
        if (fileSource != null && fileSource instanceof String) {
            File file = new File((String) fileSource);
            if(file.exists()) {
                GeoTiffReader reader = null;
                FileInputStream fis = null;
                try {
                    // geotiff reader won't read unreferenced tiffs unless we tell it to
                    if(unreferenced) {
                        // just check if it has the proper extension for the moment, until
                        // we get a more reliable way to check if it's a tiff
                        String name = file.getName().toLowerCase();
                        if(!name.endsWith(".tiff") && !name.endsWith(".tif")) {
                            throw new IOException("Not a tiff");
                        }
                    } else {
                        reader = new GeoTiffReader(file);
                        reader.read(null);
                    }
                    // ooh, a geotiff already!
                    fis = new FileInputStream(file);
                    IOUtils.copyLarge(fis, os);
                    return;
                } catch(Exception e) {
                    // ok, not a geotiff!
                } finally {
                    if(reader != null) {
                        reader.dispose();
                    } 
                    if(fis != null) {
                        fis.close();
                    }
                }

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                new NullProgressListener() // progressListener
                );


        // Final checks on the result
        Assert.assertNotNull(rasterZip);
        GeoTiffReader reader = null;
        GridCoverage2D gc = null, gcResampled = null;
        try {
            final File[] tiffFiles = extractTIFFFile(rasterZip);
            Assert.assertNotNull(tiffFiles);
            Assert.assertTrue(tiffFiles.length > 0);
            reader = new GeoTiffReader(tiffFiles[0]);
            gc = reader.read(null);


            Assert.assertNotNull(gc);


            Assert.assertEquals(-130.88669845369998,
                    gc.getEnvelope().getLowerCorner().getOrdinate(0), 1E-6);
            Assert.assertEquals(48.611129008700004, gc.getEnvelope().getLowerCorner()
                    .getOrdinate(1), 1E-6);
            Assert.assertEquals(-123.95304462109999,
                    gc.getEnvelope().getUpperCorner().getOrdinate(0), 1E-6);
            Assert.assertEquals(54.0861661371, gc.getEnvelope().getUpperCorner().getOrdinate(1),
                    1E-6);


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


            // clean up process
            resourceManager.finished(resourceManager.getExecutionId(true));
        }
        // Download the coverage as tiff (Reprojected)
        File resampledZip = downloadProcess.execute(getLayerId(MockData.USA_WORLDIMG), // layerName
                null, // filter
                "image/tiff", // outputFormat
                CRS.decode("EPSG:900913", true), // targetCRS
                CRS.decode("EPSG:900913", true), // roiCRS
                roiResampled, // roi
                true, // cropToGeometry
                new NullProgressListener() // progressListener
                );
        // Final checks on the result
        Assert.assertNotNull(resampledZip);


        try {
            File[] files = extractTIFFFile(resampledZip);
            reader = new GeoTiffReader(files[files.length - 1]);
            gcResampled = reader.read(null);


            Assert.assertNotNull(gcResampled);


            Assert.assertEquals(-1.457024062347863E7, gcResampled.getEnvelope().getLowerCorner()
                    .getOrdinate(0), 1E-6);
            Assert.assertEquals(6209706.404894806, gcResampled.getEnvelope().getLowerCorner()
                    .getOrdinate(1), 1E-6);
            Assert.assertEquals(-1.379838980949677E7, gcResampled.getEnvelope().getUpperCorner()
                    .getOrdinate(0), 1E-6);
            Assert.assertEquals(7187128.139081598, gcResampled.getEnvelope().getUpperCorner()
                    .getOrdinate(1), 1E-6);


        } finally {


            if (gcResampled != null) {
                CoverageCleanerCallback.disposeCoverage(gcResampled);
            }
            if (reader != null)


                reader.dispose();
            // clean up process
            resourceManager.finished(resourceManager.getExecutionId(true));
        }


    }

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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);


        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(360, reader.getOriginalGridRange().getSpan(0));
        assertEquals(360, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertEquals(1, coverage.getSampleDimensions().length);
        
        GridCoverage2D sourceCoverage = (GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);
        scheduleForCleaning(sourceCoverage);   
    }

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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);


        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:4326",true)));
        assertEquals(360, reader.getOriginalGridRange().getSpan(0));
        assertEquals(360, reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertEquals(5, coverage.getSampleDimensions().length);
        
        GridCoverage2D sourceCoverage = (GridCoverage2D) this.getCatalog().getCoverageByName("BlueMarble").getGridCoverageReader(null, null).read(null);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);
        scheduleForCleaning(sourceCoverage);   
    }

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


        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:32611",true)));
        assertEquals(68, reader.getOriginalGridRange().getSpan(0));
        assertEquals(56 , reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertEquals(3, coverage.getSampleDimensions().length);
        
        GridCoverage2D sourceCoverage = (GridCoverage2D) this.getCatalog().getCoverageByName("multiband").getGridCoverageReader(null, null).read(null);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);
        scheduleForCleaning(sourceCoverage);   
    }

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


        final GeoTiffReader reader = new GeoTiffReader(file);
        assertTrue(CRS.equalsIgnoreMetadata(reader.getCoordinateReferenceSystem(), CRS.decode("EPSG:32611",true)));
        assertEquals(68, reader.getOriginalGridRange().getSpan(0));
        assertEquals(56 , reader.getOriginalGridRange().getSpan(1));
        final GridCoverage2D coverage = reader.read(null);
        assertEquals(4, coverage.getSampleDimensions().length);
        
        GridCoverage2D sourceCoverage = (GridCoverage2D) this.getCatalog().getCoverageByName("multiband").getGridCoverageReader(null, null).read(null);
        assertEnvelopeEquals(sourceCoverage, coverage);
        reader.dispose();  
        scheduleForCleaning(coverage);
        scheduleForCleaning(sourceCoverage);   
    }

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