/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2010, 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.grid;
import static org.junit.Assert.assertTrue;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.junit.Test;
/**
* Unit tests for the Grids class.
*
* @author mbedward
* @since 2.7
*
*
*
* @source $URL$
* @version $Id$
*/
public class EnvelopesTest {
private static final double TOL = 1.0e-8d;
@Test
public void expand() {
ReferencedEnvelope env = new ReferencedEnvelope(2.6, 9.4, 2.4, 9.6, null);
ReferencedEnvelope result = Envelopes.expandToInclude(env, 1.0);
ReferencedEnvelope expected = new ReferencedEnvelope(2.0, 10.0, 2.0, 10.0, null);
assertTrue(expected.boundsEquals2D(result, TOL));
}
@Test
public void expandNegativeX() {
ReferencedEnvelope env = new ReferencedEnvelope(-2.6, -9.4, 2.4, 9.6, null);
ReferencedEnvelope result = Envelopes.expandToInclude(env, 1.0);
ReferencedEnvelope expected = new ReferencedEnvelope(-2.0, -10.0, 2.0, 10.0, null);
assertTrue(expected.boundsEquals2D(result, TOL));
}
@Test
public void expandNegativeY() {
ReferencedEnvelope env = new ReferencedEnvelope(2.6, 9.4, -2.4, -9.6, null);
ReferencedEnvelope result = Envelopes.expandToInclude(env, 1.0);
ReferencedEnvelope expected = new ReferencedEnvelope(2.0, 10.0, -2.0, -10.0, null);
assertTrue(expected.boundsEquals2D(result, TOL));
}
}