/*
* Copyright (C) 2011-2015, Peter Abeles. All Rights Reserved.
*
* This file is part of Geometric Regression Library (GeoRegression).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package georegression.metric.alg;
import georegression.metric.Distance3D_F32;
import georegression.misc.GrlConstants;
import georegression.struct.line.LineSegment3D_F32;
import georegression.struct.point.Point3D_F32;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Peter Abeles
*/
public class TestDistancePointTriangle3D_F32 {
DistancePointTriangle3D_F32 alg = new DistancePointTriangle3D_F32();
Point3D_F32 P0 = new Point3D_F32(0,0,0);
Point3D_F32 P1 = new Point3D_F32(0,2,0);
Point3D_F32 P2 = new Point3D_F32(1,1,0);
LineSegment3D_F32 L01 = new LineSegment3D_F32(P0,P1);
LineSegment3D_F32 L12 = new LineSegment3D_F32(P1,P2);
LineSegment3D_F32 L20 = new LineSegment3D_F32(P2,P0);
@Before
public void init() {
alg.setTriangle(P0,P1,P2);
}
@Test
public void sign() {
assertTrue(alg.sign(new Point3D_F32(0,0,2))> 0);
assertTrue(alg.sign(new Point3D_F32(3,-3,2))> 0);
assertTrue(alg.sign(new Point3D_F32(0,0,-2))< 0);
assertTrue(alg.sign(new Point3D_F32(3,-3,-2))< 0);
}
@Test
public void region0() {
assertEquals(2, distance(0.1f, 0.2f, 2), GrlConstants.FLOAT_TEST_TOL);
assertEquals(2, distance(0.1f, 0.2f, -2), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region1() {
Point3D_F32 P = new Point3D_F32(2,1,2);
float d = Distance3D_F32.distance(L12,P);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region2() {
Point3D_F32 P = new Point3D_F32(-0.2f,7.2f,2);
float d = P1.distance(P);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region3() {
Point3D_F32 P = new Point3D_F32(-0.1f,1.5f,0);
float d = Distance3D_F32.distance(L01,P);
assertEquals(d, distance(P.x, P.y, P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region4() {
Point3D_F32 P = new Point3D_F32(-0.2f,-0.5f,2);
float d = P0.distance(P);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region5() {
Point3D_F32 P = new Point3D_F32(0.6f,0.5f,2);
float d = Distance3D_F32.distance(L20,P);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
@Test
public void region6() {
Point3D_F32 P = new Point3D_F32(1.5f,1,2);
float d = P2.distance(P);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
assertEquals(d, distance(P.x,P.y,P.z), GrlConstants.FLOAT_TEST_TOL);
}
public float distance( float x , float y , float z ) {
Point3D_F32 cp = new Point3D_F32();
alg.closestPoint(new Point3D_F32(x,y,z),cp);
return cp.distance(new Point3D_F32(x,y,z));
}
}