/* ===========================================================
* Orson Charts : a 3D chart library for the Java(tm) platform
* ===========================================================
*
* (C)opyright 2013-2016, by Object Refinery Limited. All rights reserved.
*
* http://www.object-refinery.com/orsoncharts/index.html
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* If you do not wish to be bound by the terms of the GPL, an alternative
* commercial license can be purchased. For details, please see visit the
* Orson Charts home page:
*
* http://www.object-refinery.com/orsoncharts/index.html
*
*/
package com.orsoncharts.graphics3d;
import com.orsoncharts.TestUtils;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
/**
* Some tests for the {@link ViewPoint3D} class.
*/
public class ViewPoint3DTest {
private static final double EPSILON = 0.000001;
@Test
public void testGeneral() {
ViewPoint3D v1 = new ViewPoint3D(0, 0, 1, 0);
assertEquals(0, v1.getX(), EPSILON);
assertEquals(0, v1.getY(), EPSILON);
assertEquals(1, v1.getZ(), EPSILON);
assertEquals(0, v1.calcRollAngle(), EPSILON);
v1 = new ViewPoint3D(Point3D.UNIT_X, 0.0);
assertEquals(0, v1.getTheta(), EPSILON);
assertEquals(Math.PI / 2, v1.getPhi(), EPSILON);
assertEquals(1, v1.getRho(), EPSILON);
assertEquals(0, v1.calcRollAngle(), EPSILON);
v1 = new ViewPoint3D(Point3D.UNIT_Y, 0.0);
assertEquals(Math.PI / 2, v1.getTheta(), EPSILON);
assertEquals(Math.PI / 2, v1.getPhi(), EPSILON);
assertEquals(1, v1.getRho(), EPSILON);
assertEquals(0, v1.calcRollAngle(), EPSILON);
v1 = new ViewPoint3D(Point3D.UNIT_Z, 0.0);
assertEquals(0, v1.getTheta(), EPSILON);
assertEquals(0, v1.getPhi(), EPSILON);
assertEquals(1, v1.getRho(), EPSILON);
assertEquals(0, v1.calcRollAngle(), EPSILON);
v1 = new ViewPoint3D(1, 2, 3, 4);
ViewPoint3D v2 = new ViewPoint3D(v1.getPoint(), v1.calcRollAngle());
assertEquals(v1.getTheta(), v2.getTheta(), EPSILON);
assertEquals(v1.getPhi(), v2.getPhi(), EPSILON);
assertEquals(v1.getRho(), v2.getRho(), EPSILON);
}
@Test
public void testConstructor() {
ViewPoint3D v1 = new ViewPoint3D(-1.675516f, -2.6179938f, 25.874374f,
0);
ViewPoint3D v2 = new ViewPoint3D(v1.getPoint(), v1.calcRollAngle());
assertEquals(v1.getX(), v2.getX(), EPSILON);
assertEquals(v1.getY(), v2.getY(), EPSILON);
assertEquals(v1.getZ(), v2.getZ(), EPSILON);
}
@Test
public void testEquals() {
ViewPoint3D vp1 = new ViewPoint3D(1.0, 2.0, 3.0, 4.0);
ViewPoint3D vp2 = new ViewPoint3D(1.0, 2.0, 3.0, 4.0);
assertTrue(vp1.equals(vp2));
vp1 = new ViewPoint3D(1.1, 2.0, 3.0, 4.0);
assertFalse(vp1.equals(vp2));
vp2 = new ViewPoint3D(1.1, 2.0, 3.0, 4.0);
assertTrue(vp1.equals(vp2));
vp1 = new ViewPoint3D(1.1, 2.2, 3.0, 4.0);
assertFalse(vp1.equals(vp2));
vp2 = new ViewPoint3D(1.1, 2.2, 3.0, 4.0);
assertTrue(vp1.equals(vp2));
vp1 = new ViewPoint3D(1.1, 2.2, 3.3, 4.0);
assertFalse(vp1.equals(vp2));
vp2 = new ViewPoint3D(1.1, 2.2, 3.3, 4.0);
assertTrue(vp1.equals(vp2));
vp1 = new ViewPoint3D(1.1, 2.2, 3.3, 4.4);
assertFalse(vp1.equals(vp2));
vp2 = new ViewPoint3D(1.1, 2.2, 3.3, 4.4);
assertTrue(vp1.equals(vp2));
vp1.moveUpDown(1.0);
assertFalse(vp1.equals(vp2));
vp2.moveUpDown(1.0);
assertTrue(vp1.equals(vp2));
}
/**
* A check for serialization.
*/
@Test
public void testSerialization() {
ViewPoint3D vp1 = new ViewPoint3D(1.0, 2.0, 3.0, 4.0);
ViewPoint3D vp2 = (ViewPoint3D) TestUtils.serialized(vp1);
assertEquals(vp1, vp2);
}
@Test
public void testZ() {
Point3D p = new Point3D(0, 0, 25);
ViewPoint3D v1 = new ViewPoint3D(p, 0);
assertEquals(0, v1.getX(), EPSILON);
assertEquals(0, v1.getY(), EPSILON);
assertEquals(25, v1.getZ(), EPSILON);
assertEquals(0, v1.getTheta(), EPSILON);
}
}