/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.referencing.operation.builder;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import java.util.Random;
import org.opengis.parameter.ParameterValueGroup;
import org.opengis.referencing.FactoryException;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
import org.opengis.referencing.operation.MathTransform;
import org.opengis.referencing.operation.TransformException;
import org.geotools.coverage.grid.GridCoverage2D;
import org.geotools.coverage.grid.GridCoverageFactory;
import org.geotools.coverage.processing.AbstractProcessor;
import org.geotools.geometry.Envelope2D;
import org.geotools.geometry.GeneralEnvelope;
import org.geotools.referencing.CRS;
import org.geotools.referencing.crs.DefaultDerivedCRS;
import org.geotools.referencing.crs.DefaultEngineeringCRS;
import org.geotools.referencing.cs.DefaultCartesianCS;
import org.geotools.referencing.operation.DefaultOperationMethod;
import org.geotools.referencing.operation.matrix.GeneralMatrix;
import org.geotools.referencing.operation.transform.ProjectiveTransform;
/**
* @author jezekjan
*
*/
public class Resample2DTest extends TestCase {
/**The source grid coverage, to be initialized by {@link #setUp}.
* Contains 8-bits indexed color model for a PNG image, with categories.
*/
private GridCoverage2D coverage;
public Resample2DTest(String arg0) {
super(arg0);
}
private GridCoverage2D coverageGenerator(int width, int height) {
final Random random = new Random(8578348921369L);
float[][] cov = new float[height][width];
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
cov[i][j] = random.nextFloat();
}
}
DefaultEngineeringCRS b;
Envelope2D env = new Envelope2D(DefaultEngineeringCRS.CARTESIAN_2D, 1000, 5000, 300, 300);
return (new GridCoverageFactory()).create("Example", cov, env);
}
/* (non-Javadoc)
* @see junit.framework.TestCase#setUp()
*/
protected void setUp() throws Exception {
super.setUp();
//coverage = coverageGenerator(100, 100);
}
public void testEnvelope() throws TransformException, FactoryException {
/* GeneralMatrix M = new GeneralMatrix(3, 3);
double[] m0 = { 0.991, 0.01, 0.001 };
double[] m1 = { -0.01, 0.991, 0.001 };
double[] m2 = { 0, 0, 1 };
M.setRow(0, m0);
M.setRow(1, m1);
M.setRow(2, m2);
MathTransform transform = (MathTransform) ProjectiveTransform.create(M);
CoordinateReferenceSystem targetCRS = new DefaultDerivedCRS("targetCRS",
new DefaultOperationMethod(transform), coverage.getCoordinateReferenceSystem(),
transform, DefaultCartesianCS.GENERIC_2D);
AbstractProcessor processor = AbstractProcessor.getInstance();
ParameterValueGroup param = processor.getOperation("Resample").getParameters();
param.parameter("Source").setValue(coverage);
param.parameter("CoordinateReferenceSystem").setValue(targetCRS);
GridCoverage2D target = (GridCoverage2D) processor.doOperation(param);
GeneralEnvelope targetEnv = CRS.transform(CRS.findMathTransform(
coverage.getCoordinateReferenceSystem(), targetCRS), coverage.getEnvelope());
// System.out.println("To run the test uncomment last line in Resample2D.testEnvelope method");
/**
* Test whether CRS.transform return smae envelope as processor.doOperation
*/
// assertEquals(targetEnv, (GeneralEnvelope)target.getEnvelope());*/
}
public static Test suite() {
return new TestSuite(Resample2DTest.class);
}
/**
* Run the suit from the command line.
*/
public static void main(final String[] args) {
junit.textui.TestRunner.run(suite());
}
}