root / org.gvsig.proj / branches / refactor2018 / org.gvsig.proj / org.gvsig.proj.lib / org.gvsig.proj.lib.api / src / test / java / org / gvsig / proj / CoordinateTransformationIT.java @ 805
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/* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2012 gvSIG Association
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.proj; |
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import java.util.Arrays; |
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import org.gvsig.proj.catalogue.CRSDefinition; |
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import org.gvsig.proj.catalogue.TransformationDefinition; |
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import org.gvsig.tools.junit.AbstractLibraryAutoInitTestCase; |
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/**
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* {@link CoordinateTransformation} API acceptance tests.
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*
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* @author gvSIG Team
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*/
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public abstract class CoordinateTransformationIT extends |
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AbstractLibraryAutoInitTestCase { |
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protected CoordinateReferenceSystem source;
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protected CoordinateReferenceSystem target;
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protected CoordinateTransformation transformation;
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protected CoordinateReferenceSystemManager manager;
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protected void doSetUp() throws Exception { |
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manager = createProjectionManager(); |
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source = createSourceProjection(); |
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target = createTargetProjection(); |
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transformation = createTransformationFromDefinition(); |
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} |
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/**
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* Creates a {@link CoordinateReferenceSystemManager} instance.
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*
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* @return the {@link CoordinateReferenceSystemManager} instance
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*/
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protected abstract CoordinateReferenceSystemManager createProjectionManager(); |
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/**
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* Returns the transformation definition to create the CoordinateTransformation
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* to test.
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*
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* @return the authority name
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*/
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protected abstract TransformationDefinition getTransformationDefinition(); |
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/**
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* Creates the transformation to be tested
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*/
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public CoordinateTransformation createTransformationFromDefinition() throws Exception { |
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TransformationDefinition definition = getTransformationDefinition(); |
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return manager.getCoordinateTransformation(definition);
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} |
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protected abstract CoordinateReferenceSystem createSourceProjection() |
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throws Exception; |
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protected abstract CoordinateReferenceSystem createTargetProjection() |
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throws Exception; |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#getSource()}.
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*/
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public void testGetSourceProjection() { |
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assertEquals(source, transformation.getSource()); |
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} |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#getTarget()}.
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*/
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public void testGetTargetProjection() { |
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assertEquals(target, transformation.getTarget()); |
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} |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#getInverse()}.
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*/
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public void testGetReverse() { |
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CoordinateTransformation reverseTransformation = |
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transformation.getInverse(); |
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assertEquals(target, reverseTransformation.getSource()); |
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assertEquals(source, reverseTransformation.getTarget()); |
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} |
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/**
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* The input point to test the transformation
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*
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* @return
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*/
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public abstract double[] getInputPoint(); |
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/**
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* The output point to thest the transformation. This point
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* should be a known result of applying the transformation on
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* getInputPoint()
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* @return
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*/
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public abstract double[] getResultPoint(); |
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/**
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* Gets the maximum numeric tolerance to accept the result of
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* the transformation as valid
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*
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* @return
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*/
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public abstract double getResultTolerance(); |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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*/
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public void testApplyTransformationInline() { |
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double[] input = getInputPoint(); |
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transformation.apply(input); |
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assertTrue(pointsEquals(getResultPoint(), input, getResultTolerance())); |
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} |
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public boolean pointsEquals(double[] point1, double[] point2, double tolerance) { |
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for (int i=0; i<point1.length; i++) { |
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if (Math.abs(point1[i]-point2[i])>tolerance) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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*/
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public void testApplyTransformation() { |
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double[] input = getInputPoint(); |
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double[] transformed = new double[input.length]; |
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transformation.apply(input, transformed); |
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assertTrue(pointsEquals(getResultPoint(), transformed, getResultTolerance())); |
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} |
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/**
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* Test method for
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* {@link org.gvsig.proj.CoordinateTransformation#getInverse()}
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* and
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* {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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*/
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public void testApplyInverseTransformation() { |
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double[] input = getInputPoint(); |
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double[] transformed = new double[input.length]; |
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transformation.apply(input, transformed); |
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CoordinateTransformation reverseTransformation = |
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transformation.getInverse(); |
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reverseTransformation.apply(transformed); |
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assertTrue(pointsEquals(input, transformed, getResultTolerance())); |
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} |
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} |