Examples with GridCoverage org.apache.sis.coverage.grid.GridCoverage used on opensource projects

Example 11 with GridCoverage

use of org.apache.sis.coverage.grid.GridCoverage in project sis by apache.

the class ImageRequest method configure.

/**
 * Configures the given status bar with the geometry of the grid coverage we have just read.
 * This method is invoked in JavaFX thread after {@link GridView#setImage(ImageRequest)}
 * loaded in background thread a new image, successfully or not.
 */
final void configure(final StatusBar bar) {
    final Long id = LogHandler.loadingStart(resource);
    try {
        final GridCoverage cv = coverage;
        final GridExtent ex = sliceExtent;
        bar.applyCanvasGeometry(cv != null ? cv.getGridGeometry() : null);
        /*
             * By `GridCoverage.render(GridExtent)` contract, the `RenderedImage` pixel coordinates are relative
             * to the requested `GridExtent`. Consequently we need to translate the image coordinates so that it
             * become the coordinates of the original `GridGeometry` before to apply `gridToCRS`.  It is okay to
             * modify `StatusBar.localToObjectiveCRS` because we do not associate it to a `MapCanvas`, so it will
             * not be overwritten by gesture events (zoom, pan, etc).
             */
        if (ex != null) {
            final double[] origin = new double[ex.getDimension()];
            for (int i = 0; i < origin.length; i++) {
                origin[i] = ex.getLow(i);
            }
            bar.localToObjectiveCRS.set(MathTransforms.concatenate(MathTransforms.translation(origin), bar.localToObjectiveCRS.get()));
        }
    } finally {
        LogHandler.loadingStop(id);
    }
}

Example 12 with GridCoverage

use of org.apache.sis.coverage.grid.GridCoverage in project sis by apache.

the class CoverageControls method load.

/**
 * Sets the view content to the given coverage.
 * This method is invoked when a new source of data (either a resource or a coverage) is specified,
 * or when a previously hidden view is made visible. This implementation starts a background thread.
 *
 * @param  request  the resource or coverage to set, or {@code null} for clearing the view.
 */
@Override
final void load(final ImageRequest request) {
    final GridCoverageResource resource;
    final GridCoverage coverage;
    if (request != null) {
        resource = request.resource;
        coverage = request.getCoverage().orElse(null);
    } else {
        resource = null;
        coverage = null;
    }
    view.setCoverage(resource, coverage);
}

Example 13 with GridCoverage

use of org.apache.sis.coverage.grid.GridCoverage in project sis by apache.

the class DataCube method read.

/**
 * Creates a {@link GridCoverage} which will load pixel data in the given domain.
 *
 * @param  domain  desired grid extent and resolution, or {@code null} for reading the whole domain.
 * @param  range   0-based index of sample dimensions to read, or an empty sequence for reading all ranges.
 * @return the grid coverage for the specified domain and range.
 * @throws DataStoreException if an error occurred while reading the grid coverage data.
 */
@Override
public final GridCoverage read(final GridGeometry domain, final int... range) throws DataStoreException {
    final long startTime = System.nanoTime();
    GridCoverage coverage;
    try {
        synchronized (getSynchronizationLock()) {
            final Subset subset = new Subset(domain, range);
            final Compression compression = getCompression();
            if (compression == null) {
                throw new DataStoreContentException(reader.resources().getString(Resources.Keys.MissingValue_2, Tags.name(Tags.Compression)));
            }
            /*
                 * The `DataSubset` parent class is the most efficient but has many limitations
                 * documented in the javadoc of its `readSlice(…)` method. If any pre-condition
                 * is not met, we need to fallback on the less direct `CompressedSubset` class.
                 */
            if (compression == Compression.NONE && getPredictor() == Predictor.NONE && canReadDirect(subset)) {
                coverage = new DataSubset(this, subset);
            } else {
                coverage = new CompressedSubset(this, subset);
            }
            coverage = preload(coverage);
        }
    } catch (RuntimeException e) {
        throw canNotRead(reader.input.filename, domain, e);
    }
    logReadOperation(reader.store.path, coverage.getGridGeometry(), startTime);
    return coverage;
}

Example 14 with GridCoverage

use of org.apache.sis.coverage.grid.GridCoverage in project sis by apache.

the class PostgresTest method validate.

/**
 * Invoked for each feature instances for performing some checks on the feature.
 * This method performs only a superficial verification of geometries.
 */
private static void validate(final AbstractFeature feature) {
    final String filename = feature.getPropertyValue("filename").toString();
    final Geometry geometry = (Geometry) feature.getPropertyValue("geometry");
    final GridCoverage raster = (GridCoverage) feature.getPropertyValue("image");
    final int geomSRID;
    switch(filename) {
        case "raster-ushort.wkb":
            {
                assertNull(geometry);
                RasterReaderTest.compareReadResult(TestRaster.USHORT, raster);
                assertSame(CommonCRS.WGS84.normalizedGeographic(), raster.getCoordinateReferenceSystem());
                return;
            }
        case "point-prj":
            {
                final Point p = (Point) geometry;
                assertEquals(2, p.getX(), STRICT);
                assertEquals(3, p.getY(), STRICT);
                geomSRID = 3395;
                break;
            }
        case "polygon-prj":
            geomSRID = 3395;
            break;
        case "linestring":
        case "polygon":
        case "multi-linestring":
        case "multi-polygon":
            geomSRID = 4326;
            break;
        default:
            throw new AssertionError(filename);
    }
    try {
        assertEquals(GeometryGetterTest.getExpectedCRS(geomSRID), JTS.getCoordinateReferenceSystem(geometry));
    } catch (FactoryException e) {
        throw new AssertionError(e);
    }
    assertNull(raster);
}

Example 15 with GridCoverage

use of org.apache.sis.coverage.grid.GridCoverage in project sis by apache.

the class MemoryGridResourceTest method testRead.

/**
 * Tests {@link MemoryGridResource#read(GridGeometry, int...)}.
 */
@Test
public void testRead() {
    final GridGeometry request = createSubGrid();
    final GridCoverage coverage = resource.read(request);
    /*
         * Note: following lines work only with JDK 16 or above.
         * https://bugs.openjdk.java.net/browse/JDK-8166038
         */
    assertEqualsIgnoreMetadata(request, coverage.getGridGeometry());
    assertInstanceOf("render(null)", BufferedImage.class, coverage.render(null));
}