home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (SubLineTest.java)

This example Java source code file (SubLineTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

intervalsset, list, mathillegalargumentexception, segment, subline, sublinetest, test, util, vector3d

The SubLineTest.java Java example source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.math3.geometry.euclidean.threed;

import java.util.List;

import org.apache.commons.math3.exception.MathIllegalArgumentException;
import org.apache.commons.math3.geometry.euclidean.oned.Euclidean1D;
import org.apache.commons.math3.geometry.euclidean.oned.IntervalsSet;
import org.apache.commons.math3.geometry.partitioning.RegionFactory;
import org.junit.Assert;
import org.junit.Test;

public class SubLineTest {

    @Test
    public void testEndPoints() throws MathIllegalArgumentException {
        Vector3D p1 = new Vector3D(-1, -7, 2);
        Vector3D p2 = new Vector3D(7, -1, 0);
        Segment segment = new Segment(p1, p2, new Line(p1, p2, 1.0e-10));
        SubLine sub = new SubLine(segment);
        List<Segment> segments = sub.getSegments();
        Assert.assertEquals(1, segments.size());
        Assert.assertEquals(0.0, new Vector3D(-1, -7, 2).distance(segments.get(0).getStart()), 1.0e-10);
        Assert.assertEquals(0.0, new Vector3D( 7, -1, 0).distance(segments.get(0).getEnd()), 1.0e-10);
    }

    @Test
    public void testNoEndPoints() throws MathIllegalArgumentException {
        SubLine wholeLine = new Line(new Vector3D(-1, 7, 2), new Vector3D(7, 1, 0), 1.0e-10).wholeLine();
        List<Segment> segments = wholeLine.getSegments();
        Assert.assertEquals(1, segments.size());
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getX()) &&
                          segments.get(0).getStart().getX() < 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getY()) &&
                          segments.get(0).getStart().getY() > 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getZ()) &&
                          segments.get(0).getStart().getZ() > 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getX()) &&
                          segments.get(0).getEnd().getX() > 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getY()) &&
                          segments.get(0).getEnd().getY() < 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getZ()) &&
                          segments.get(0).getEnd().getZ() < 0);
    }

    @Test
    public void testNoSegments() throws MathIllegalArgumentException {
        SubLine empty = new SubLine(new Line(new Vector3D(-1, -7, 2), new Vector3D(7, -1, 0), 1.0e-10),
                                    (IntervalsSet) new RegionFactory<Euclidean1D>().getComplement(new IntervalsSet(1.0e-10)));
        List<Segment> segments = empty.getSegments();
        Assert.assertEquals(0, segments.size());
    }

    @Test
    public void testSeveralSegments() throws MathIllegalArgumentException {
        SubLine twoSubs = new SubLine(new Line(new Vector3D(-1, -7, 2), new Vector3D(7, -1, 0), 1.0e-10),
                                      (IntervalsSet) new RegionFactory<Euclidean1D>().union(new IntervalsSet(1, 2, 1.0e-10),
                                                                                            new IntervalsSet(3, 4, 1.0e-10)));
        List<Segment> segments = twoSubs.getSegments();
        Assert.assertEquals(2, segments.size());
    }

    @Test
    public void testHalfInfiniteNeg() throws MathIllegalArgumentException {
        SubLine empty = new SubLine(new Line(new Vector3D(-1, -7, 2), new Vector3D(7, -1, -2), 1.0e-10),
                                    new IntervalsSet(Double.NEGATIVE_INFINITY, 0.0, 1.0e-10));
        List<Segment> segments = empty.getSegments();
        Assert.assertEquals(1, segments.size());
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getX()) &&
                          segments.get(0).getStart().getX() < 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getY()) &&
                          segments.get(0).getStart().getY() < 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getStart().getZ()) &&
                          segments.get(0).getStart().getZ() > 0);
        Assert.assertEquals(0.0, new Vector3D(3, -4, 0).distance(segments.get(0).getEnd()), 1.0e-10);
    }

    @Test
    public void testHalfInfinitePos() throws MathIllegalArgumentException {
        SubLine empty = new SubLine(new Line(new Vector3D(-1, -7, 2), new Vector3D(7, -1, -2), 1.0e-10),
                                    new IntervalsSet(0.0, Double.POSITIVE_INFINITY, 1.0e-10));
        List<Segment> segments = empty.getSegments();
        Assert.assertEquals(1, segments.size());
        Assert.assertEquals(0.0, new Vector3D(3, -4, 0).distance(segments.get(0).getStart()), 1.0e-10);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getX()) &&
                          segments.get(0).getEnd().getX() > 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getY()) &&
                          segments.get(0).getEnd().getY() > 0);
        Assert.assertTrue(Double.isInfinite(segments.get(0).getEnd().getZ()) &&
                          segments.get(0).getEnd().getZ() < 0);
    }

    @Test
    public void testIntersectionInsideInside() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(3, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 2, 2), 1.0e-10);
        Assert.assertEquals(0.0, new Vector3D(2, 1, 1).distance(sub1.intersection(sub2, true)),  1.0e-12);
        Assert.assertEquals(0.0, new Vector3D(2, 1, 1).distance(sub1.intersection(sub2, false)), 1.0e-12);
    }

    @Test
    public void testIntersectionInsideBoundary() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(3, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 1, 1), 1.0e-10);
        Assert.assertEquals(0.0, new Vector3D(2, 1, 1).distance(sub1.intersection(sub2, true)),  1.0e-12);
        Assert.assertNull(sub1.intersection(sub2, false));
    }

    @Test
    public void testIntersectionInsideOutside() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(3, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 0.5, 0.5), 1.0e-10);
        Assert.assertNull(sub1.intersection(sub2, true));
        Assert.assertNull(sub1.intersection(sub2, false));
    }

    @Test
    public void testIntersectionBoundaryBoundary() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(2, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 1, 1), 1.0e-10);
        Assert.assertEquals(0.0, new Vector3D(2, 1, 1).distance(sub1.intersection(sub2, true)),  1.0e-12);
        Assert.assertNull(sub1.intersection(sub2, false));
    }

    @Test
    public void testIntersectionBoundaryOutside() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(2, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 0.5, 0.5), 1.0e-10);
        Assert.assertNull(sub1.intersection(sub2, true));
        Assert.assertNull(sub1.intersection(sub2, false));
    }

    @Test
    public void testIntersectionOutsideOutside() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(1.5, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 0, 0), new Vector3D(2, 0.5, 0.5), 1.0e-10);
        Assert.assertNull(sub1.intersection(sub2, true));
        Assert.assertNull(sub1.intersection(sub2, false));
    }

    @Test
    public void testIntersectionNotIntersecting() throws MathIllegalArgumentException {
        SubLine sub1 = new SubLine(new Vector3D(1, 1, 1), new Vector3D(1.5, 1, 1), 1.0e-10);
        SubLine sub2 = new SubLine(new Vector3D(2, 3, 0), new Vector3D(2, 3, 0.5), 1.0e-10);
        Assert.assertNull(sub1.intersection(sub2, true));
        Assert.assertNull(sub1.intersection(sub2, false));
    }

}

Other Java examples (source code examples)

Here is a short list of links related to this Java SubLineTest.java source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.