/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.vfny.geoserver.crs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import org.geoserver.data.test.SystemTestData;
import org.geoserver.platform.GeoServerExtensions;
import org.geoserver.platform.GeoServerResourceLoader;
import org.geoserver.test.GeoServerSystemTestSupport;
import org.geoserver.test.SystemTest;
import org.geotools.referencing.CRS;
import org.geotools.referencing.factory.epsg.CoordinateOperationFactoryUsingWKT;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.operation.ConcatenatedOperation;
import org.opengis.referencing.operation.CoordinateOperation;
import org.opengis.referencing.operation.MathTransform;
import org.opengis.referencing.operation.TransformException;
public class OvverideTransformationsTest extends GeoServerSystemTestSupport {
private static final String SOURCE_CRS = "EPSG:TEST1";
private static final String TARGET_CRS = "EPSG:TEST2";
private static final double[] SRC_TEST_POINT = {39.592654167, 3.084896111};
private static final double[] DST_TEST_POINT = {39.594235744481225, 3.0844689951999427};
@Override
protected void onSetUp(SystemTestData testData) throws Exception {
super.onSetUp(testData);
GeoServerResourceLoader loader1 = getResourceLoader();
GeoServerResourceLoader loader2 = GeoServerExtensions.bean(GeoServerResourceLoader.class);
// setup the grid file, the definitions and the tx overrides
new File(testData.getDataDirectoryRoot(), "user_projections").mkdir();
testData.copyTo(OvverideTransformationsTest.class.getResourceAsStream("test_epsg.properties"), "user_projections/epsg.properties");
testData.copyTo(OvverideTransformationsTest.class.getResourceAsStream("test_epsg_operations.properties"), "user_projections/epsg_operations.properties");
testData.copyTo(OvverideTransformationsTest.class.getResourceAsStream("stgeorge.las"), "user_projections/stgeorge.las");
testData.copyTo(OvverideTransformationsTest.class.getResourceAsStream("stgeorge.los"), "user_projections/stgeorge.los");
CRS.reset("all");
}
/**
* Test method for {@link CoordinateOperationFactoryUsingWKT#createCoordinateOperation}.
* @throws TransformException
*/
@Test
public void testCreateOperationFromCustomCodes() throws Exception {
// Test CRSs
CoordinateReferenceSystem source = CRS.decode(SOURCE_CRS);
CoordinateReferenceSystem target = CRS.decode(TARGET_CRS);
MathTransform mt = CRS.findMathTransform(source, target, true);
// Test MathTransform
double[] p = new double[2];
mt.transform(SRC_TEST_POINT, 0, p, 0, 1);
assertEquals(p[0], DST_TEST_POINT[0], 1e-8);
assertEquals(p[1], DST_TEST_POINT[1], 1e-8);
}
/**
* Test method for {@link CoordinateOperationFactoryUsingWKT#createCoordinateOperation}.
* @throws TransformException
*/
@Test
public void testOverrideEPSGOperation() throws Exception {
// Test CRSs
CoordinateReferenceSystem source = CRS.decode("EPSG:4269");
CoordinateReferenceSystem target = CRS.decode("EPSG:4326");
MathTransform mt = CRS.findMathTransform(source, target, true);
// Test MathTransform
double[] p = new double[2];
mt.transform(SRC_TEST_POINT, 0, p, 0, 1);
assertEquals(p[0], DST_TEST_POINT[0], 1e-8);
assertEquals(p[1], DST_TEST_POINT[1], 1e-8);
}
/**
* Check we are actually using the EPSG database for anything not in override
*
* @throws TransformException
*/
@Test
public void testFallbackOnEPSGDatabaseStd() throws Exception {
// Test CRSs
CoordinateReferenceSystem source = CRS.decode("EPSG:3003");
CoordinateReferenceSystem target = CRS.decode("EPSG:4326");
CoordinateOperation co = CRS.getCoordinateOperationFactory(true).createOperation(source, target);
ConcatenatedOperation cco = (ConcatenatedOperation) co;
// the EPSG one only has two steps, the non EPSG one 4
assertEquals(2, cco.getOperations().size());
}
/**
* See if we can use the stgeorge grid shift files as the ESPG db would like us to
* @throws Exception
*/
@Test
public void testNadCon() throws Exception {
CoordinateReferenceSystem crs4138 = CRS.decode("EPSG:4138");
CoordinateReferenceSystem crs4326 = CRS.decode("EPSG:4326");
MathTransform mt = CRS.findMathTransform(crs4138, crs4326);
assertTrue(mt.toWKT().contains("NADCON"));
double[] src = new double[] {-169.625, 56.575};
double[] expected = new double [] {-169.62744, 56.576034};
double[] p = new double[2];
mt.transform(src, 0, p, 0, 1);
assertEquals(expected[0], p[0], 1e-6);
assertEquals(expected[1], p[1], 1e-6);
}
}