| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.sis.metadata.iso.extent; |
| |
| import java.util.List; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import javax.measure.Unit; |
| import javax.measure.UnitConverter; |
| import javax.measure.IncommensurableException; |
| import org.opengis.geometry.DirectPosition; |
| import org.opengis.metadata.extent.Extent; |
| import org.opengis.metadata.extent.VerticalExtent; |
| import org.opengis.metadata.extent.GeographicBoundingBox; |
| import org.opengis.referencing.operation.TransformException; |
| import org.apache.sis.measure.Units; |
| import org.apache.sis.measure.MeasurementRange; |
| import static org.apache.sis.metadata.privy.ReferencingServices.NAUTICAL_MILE; |
| |
| // Test dependencies |
| import org.junit.jupiter.api.Test; |
| import static org.junit.jupiter.api.Assertions.*; |
| import org.apache.sis.test.TestCase; |
| import org.apache.sis.test.TestUtilities; |
| import org.apache.sis.test.mock.VerticalCRSMock; |
| |
| // Specific to the geoapi-3.1 and geoapi-4.0 branches: |
| import org.opengis.referencing.datum.RealizationMethod; |
| |
| |
| /** |
| * Tests {@link Extents} static methods. |
| * |
| * <p><b>Note:</b> the {@link Extents#WORLD} constant is tested in another class, |
| * {@link DefaultExtentTest#testWorldConstant()}.</p> |
| * |
| * @author Martin Desruisseaux (Geomatys) |
| */ |
| public final class ExtentsTest extends TestCase { |
| /** |
| * One minute of angle, in degrees. |
| */ |
| private static final double MINUTE = 1./60; |
| |
| /** |
| * Creates a new test case. |
| */ |
| public ExtentsTest() { |
| } |
| |
| /** |
| * Tests {@link Extents#getVerticalRange(Extent)}. |
| * |
| * @throws IncommensurableException if a conversion between incompatible units were attempted. |
| */ |
| @Test |
| public void testGetVerticalRange() throws IncommensurableException { |
| final List<DefaultVerticalExtent> extents = Arrays.asList( |
| new DefaultVerticalExtent( -200, -100, VerticalCRSMock.HEIGHT), |
| new DefaultVerticalExtent( 150, 300, VerticalCRSMock.DEPTH), |
| new DefaultVerticalExtent( 0.1, 0.2, VerticalCRSMock.SIGMA_LEVEL), |
| new DefaultVerticalExtent( -600, -300, VerticalCRSMock.HEIGHT_ft), // [91.44 … 182.88] metres |
| new DefaultVerticalExtent(10130, 20260, VerticalCRSMock.BAROMETRIC_HEIGHT) |
| ); |
| Collections.shuffle(extents, TestUtilities.createRandomNumberGenerator()); |
| /* |
| * Since we have shuffled the vertical extents in random order, the range that we will |
| * test may be either in metres or in feet depending on which vertical extent is first. |
| * So we need to check which linear unit is first. |
| */ |
| Unit<?> unit = null; |
| for (final DefaultVerticalExtent e : extents) { |
| unit = e.getVerticalCRS().getCoordinateSystem().getAxis(0).getUnit(); |
| if (e.getVerticalCRS().getDatum().getRealizationMethod().orElse(null) == RealizationMethod.GEOID) break; |
| } |
| final UnitConverter c = unit.getConverterToAny(Units.METRE); |
| /* |
| * The actual test. Arbitrarily compare the heights in metres, converting them if needed. |
| */ |
| final var extent = new DefaultExtent(); |
| extent.setVerticalElements(extents); |
| final MeasurementRange<Double> range = Extents.getVerticalRange(extent); |
| assertNotNull(range); |
| assertSame (unit, range.unit()); |
| assertEquals (-200, c.convert(range.getMinDouble()), 0.001); |
| assertEquals (-91.44, c.convert(range.getMaxDouble()), 0.001); |
| } |
| |
| /** |
| * Tests {@link Extents#intersection(GeographicBoundingBox, GeographicBoundingBox)}. |
| */ |
| @Test |
| public void testGeographicIntersection() { |
| final var b1 = new DefaultGeographicBoundingBox(10, 20, 30, 40); |
| final var b2 = new DefaultGeographicBoundingBox(15, 25, 26, 32); |
| assertEquals( new DefaultGeographicBoundingBox(15, 20, 30, 32), Extents.intersection(b1, b2)); |
| assertSame(b1, Extents.intersection(b1, null)); |
| assertSame(b2, Extents.intersection(null, b2)); |
| assertNull( Extents.intersection((GeographicBoundingBox) null, (GeographicBoundingBox) null)); |
| } |
| |
| /** |
| * Tests {@link Extents#intersection(VerticalExtent, VerticalExtent)}. |
| * This test does not perform any unit conversion, because it would require the use of different CRS. |
| * For a test with unit conversion, see {@code ServicesForMetadataTest.testVerticalIntersection()} in |
| * {@code org.apache.sis.referencing} module. |
| * |
| * @throws TransformException should never happen since we do not test transformation in this class. |
| */ |
| @Test |
| public void testVerticalIntersection() throws TransformException { |
| final var e1 = new DefaultVerticalExtent(10, 20, null); |
| final var e2 = new DefaultVerticalExtent(15, 25, null); |
| assertEquals( new DefaultVerticalExtent(15, 20, null), Extents.intersection(e1, e2)); |
| assertSame(e1, Extents.intersection(e1, null)); |
| assertSame(e2, Extents.intersection(null, e2)); |
| assertNull( Extents.intersection((VerticalExtent) null, (VerticalExtent) null)); |
| } |
| |
| /** |
| * Tests {@link Extents#intersection(Extent, Extent)}. |
| * This test is subject to the same limitation as {@link #testVerticalIntersection()}. |
| */ |
| @Test |
| public void testExtentIntersection() { |
| final var e1 = new DefaultExtent(null, new DefaultGeographicBoundingBox(10, 20, 30, 40), new DefaultVerticalExtent(10, 20, null), null); |
| final var e2 = new DefaultExtent(null, new DefaultGeographicBoundingBox(15, 25, 26, 32), new DefaultVerticalExtent(15, 25, null), null); |
| assertEquals( new DefaultExtent(null, new DefaultGeographicBoundingBox(15, 20, 30, 32), new DefaultVerticalExtent(15, 20, null), null), Extents.intersection(e1, e2)); |
| assertSame(e1, Extents.intersection(e1, null)); |
| assertSame(e2, Extents.intersection(null, e2)); |
| assertNull( Extents.intersection((Extent) null, (Extent) null)); |
| } |
| |
| /** |
| * Tests {@link Extents#area(GeographicBoundingBox)}. |
| */ |
| @Test |
| public void testArea() { |
| /* |
| * The nautical mile is equal to the length of 1 second of arc along a meridian or parallel at the equator. |
| * Since we are using the GRS80 authalic sphere instead of WGS84, and since the nautical mile definition |
| * itself is a little bit approximated, we add a slight empirical shift. |
| */ |
| final var box = new DefaultGeographicBoundingBox(10, 10+MINUTE, 2.9685, 2.9685+MINUTE); |
| assertEquals(NAUTICAL_MILE * NAUTICAL_MILE, Extents.area(box), 0.1); |
| /* |
| * Result should be much smaller near the poles. |
| */ |
| box.setNorthBoundLatitude(90); |
| box.setSouthBoundLatitude(90-MINUTE); |
| assertEquals(499.5, Extents.area(box), 0.1); |
| box.setSouthBoundLatitude(-90); |
| box.setNorthBoundLatitude(-90+MINUTE); |
| assertEquals(499.5, Extents.area(box), 0.1); |
| /* |
| * Spanning 360° of longitude. |
| */ |
| box.setBounds(-180, +180, -90, 90); |
| assertEquals(5.1E+14, Extents.area(box), 1E+11); |
| /* |
| * EPSG:1241 USA - CONUS including EEZ |
| * This is only an anti-regression test - the value has not been validated. |
| * However, the expected area MUST be greater than the Alaska's one below, |
| * otherwise SIS will select the wrong datum shift operation over USA!! |
| */ |
| box.setBounds(-129.16, -65.70, 23.82, 49.38); |
| assertFalse(DefaultGeographicBoundingBoxTest.isCrossingAntiMeridian(box)); |
| assertEquals(15967665, Extents.area(box) / 1E6, 1); // Compare in km² |
| /* |
| * EPSG:2373 USA - Alaska including EEZ (crossing the anti-meridian). |
| * This is only an anti-regression test - the value has not been validated. |
| * However, the expected area MUST be smaller than the CONUS's one above. |
| */ |
| box.setBounds(167.65, -129.99, 47.88, 74.71); |
| assertTrue(DefaultGeographicBoundingBoxTest.isCrossingAntiMeridian(box)); |
| assertEquals(9845438, Extents.area(box) / 1E6, 1); // Compare in km² |
| } |
| |
| /** |
| * Tests the {@link Extents#centroid(GeographicBoundingBox)} method. This method is defined here |
| * but executed from the {@link org.apache.sis.referencing.internal.ServicesForMetadataTest} class |
| * in {@code org.apache.sis.referencing} module. |
| * This method cannot be executed in the {@code org.apache.sis.metadata} module |
| * because it has a dependency to a referencing implementation class. |
| */ |
| public static void testCentroid() { |
| final DefaultGeographicBoundingBox bbox = new DefaultGeographicBoundingBox(140, 160, 30, 50); |
| DirectPosition pos = Extents.centroid(bbox); |
| assertEquals(150, pos.getCoordinate(0), "longitude"); |
| assertEquals( 40, pos.getCoordinate(1), "latitude"); |
| /* |
| * Test crossing anti-meridian. |
| */ |
| bbox.setEastBoundLongitude(-160); |
| pos = Extents.centroid(bbox); |
| assertEquals(170, pos.getCoordinate(0), "longitude"); |
| assertEquals( 40, pos.getCoordinate(1), "latitude"); |
| } |
| } |