| /* |
| * 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.coverage.grid; |
| |
| import java.awt.image.BufferedImage; |
| import java.awt.image.DataBuffer; |
| import java.awt.image.WritableRaster; |
| import org.opengis.referencing.datum.PixelInCell; |
| import org.apache.sis.referencing.operation.transform.MathTransforms; |
| import org.apache.sis.coverage.privy.RasterFactory; |
| import org.apache.sis.geometry.DirectPosition2D; |
| |
| // 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.referencing.crs.HardCodedCRS; |
| |
| |
| /** |
| * Tests {@link TranslatedGridCoverage}. |
| * |
| * @author Martin Desruisseaux (Geomatys) |
| */ |
| public final class TranslatedGridCoverageTest extends TestCase { |
| /** |
| * Creates a new test case. |
| */ |
| public TranslatedGridCoverageTest() { |
| } |
| |
| /** |
| * Creates a test coverage with grid coordinates starting at (-20, -10). |
| * Envelope is BOX(-80 -20, -72 -16). |
| */ |
| private static GridCoverage createCoverage() { |
| final int imageSize = 2; |
| final GridExtent extent = new GridExtent(imageSize, imageSize).translate(-20, -10); |
| final GridGeometry domain = new GridGeometry(extent, PixelInCell.CELL_CORNER, MathTransforms.scale(4, 2), HardCodedCRS.WGS84); |
| final BufferedImage image = RasterFactory.createGrayScaleImage(DataBuffer.TYPE_BYTE, imageSize, imageSize, 1, 0, 10, 24); |
| final WritableRaster raster = image.getRaster(); |
| raster.setSample(0, 0, 0, 10); |
| raster.setSample(1, 0, 0, 16); |
| raster.setSample(0, 1, 0, 20); |
| raster.setSample(1, 1, 0, 24); |
| return new GridCoverageBuilder().setDomain(domain).setValues(image).build(); |
| } |
| |
| /** |
| * Verifies that the given two-dimensional extent has the given low coordinates. |
| */ |
| private static void assertExtentStarts(final GridExtent extent, final long low0, final long low1) { |
| assertEquals(2, extent.getDimension()); |
| assertEquals(low0, extent.getLow(0)); |
| assertEquals(low1, extent.getLow(1)); |
| } |
| |
| /** |
| * Tests using {@link GridCoverageProcessor}. |
| */ |
| @Test |
| public void testUsingProcessor() { |
| final GridCoverageProcessor processor = new GridCoverageProcessor(); |
| final GridCoverage source = createCoverage(); |
| final GridCoverage target = processor.shiftGrid(source, 30, -5); |
| assertExtentStarts(source.getGridGeometry().getExtent(), -20, -10); |
| assertExtentStarts(target.getGridGeometry().getExtent(), 10, -15); |
| /* |
| * The result for identical "real world" coordinates should be the same for both coverages. |
| */ |
| final DirectPosition2D p = new DirectPosition2D(HardCodedCRS.WGS84, -75, -18); |
| assertArrayEquals(source.evaluator().apply(p), |
| target.evaluator().apply(p)); |
| } |
| } |