/*
* 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.struct.point;
import georegression.misc.GrlConstants;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @author Peter Abeles
*/
public class TestVector2D_F64 {
@Test
public void minus() {
Point2D_F64 a = new Point2D_F64(4,9);
Point2D_F64 b = new Point2D_F64(1.2,3.5);
Vector2D_F64 out = new Vector2D_F64();
out.minus(a,b);
assertEquals(a.x-b.x,out.x,GrlConstants.DOUBLE_TEST_TOL);
assertEquals(a.y-b.y,out.y,GrlConstants.DOUBLE_TEST_TOL);
}
@Test
public void dot() {
Vector2D_F64 a = new Vector2D_F64( 1, 2 );
Vector2D_F64 b = new Vector2D_F64( 3, 4 );
double found = a.dot( b );
assertEquals( 11, found, GrlConstants.DOUBLE_TEST_TOL);
}
@Test
public void acute() {
Vector2D_F64 a = new Vector2D_F64(1,0);
assertEquals(Math.PI/2.0,a.acute(new Vector2D_F64(0, 1)),GrlConstants.DOUBLE_TEST_TOL);
assertEquals(Math.PI,a.acute(new Vector2D_F64(-1, 0)),GrlConstants.DOUBLE_TEST_TOL);
}
}