| /* |
| * 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.geometry.euclidean.threed; |
| |
| import org.apache.commons.numbers.angle.PlaneAngleRadians; |
| import org.apache.commons.geometry.core.Transform; |
| import org.apache.commons.geometry.core.exception.IllegalNormException; |
| import org.apache.commons.geometry.core.precision.DoublePrecisionContext; |
| import org.apache.commons.geometry.core.precision.EpsilonDoublePrecisionContext; |
| import org.apache.commons.geometry.euclidean.EuclideanTestUtils; |
| import org.apache.commons.geometry.euclidean.oned.Interval; |
| import org.apache.commons.geometry.euclidean.oned.Vector1D; |
| import org.apache.commons.geometry.euclidean.threed.rotation.QuaternionRotation; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class Line3DTest { |
| |
| private static final double TEST_EPS = 1e-10; |
| |
| private static final DoublePrecisionContext TEST_PRECISION = |
| new EpsilonDoublePrecisionContext(TEST_EPS); |
| |
| @Test |
| public void testFromPointAndDirection() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(-1, 1, 0), Vector3D.Unit.PLUS_Y, TEST_PRECISION); |
| |
| // act/assert |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(-1, 0, 0), line.getOrigin(), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.Unit.PLUS_Y, line.getDirection(), TEST_EPS); |
| Assert.assertSame(TEST_PRECISION, line.getPrecision()); |
| } |
| |
| @Test |
| public void testFromPointAndDirection_normalizesDirection() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.ZERO, Vector3D.of(1, 1, 1), TEST_PRECISION); |
| |
| // act/assert |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.ZERO, line.getOrigin(), TEST_EPS); |
| |
| double invSqrt3 = 1.0 / Math.sqrt(3); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(invSqrt3, invSqrt3, invSqrt3), line.getDirection(), TEST_EPS); |
| Assert.assertSame(TEST_PRECISION, line.getPrecision()); |
| } |
| |
| @Test(expected = IllegalNormException.class) |
| public void testFromPointAndDirection_illegalDirectionNorm() { |
| // act/assert |
| Line3D.fromPointAndDirection(Vector3D.ZERO, Vector3D.ZERO, TEST_PRECISION); |
| } |
| |
| @Test |
| public void testFromPoints() { |
| // arrange |
| Line3D line = Line3D.fromPoints(Vector3D.of(-1, 1, 0), Vector3D.of(-1, 7, 0), TEST_PRECISION); |
| |
| // act/assert |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(-1, 0, 0), line.getOrigin(), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.Unit.PLUS_Y, line.getDirection(), TEST_EPS); |
| Assert.assertSame(TEST_PRECISION, line.getPrecision()); |
| } |
| |
| @Test(expected = IllegalNormException.class) |
| public void testFromPoints_pointsTooClose() { |
| // act/assert |
| Line3D.fromPoints(Vector3D.of(1, 1, 1), Vector3D.of(1, 1, 1 + 1e-16), TEST_PRECISION); |
| } |
| |
| @Test |
| public void testTransform() { |
| // arrange |
| Vector3D pt = Vector3D.of(1, 2, 3); |
| Line3D line = Line3D.fromPointAndDirection(pt, Vector3D.of(1, 1, 1), TEST_PRECISION); |
| |
| AffineTransformMatrix3D mat = AffineTransformMatrix3D.createRotation(pt, |
| QuaternionRotation.fromAxisAngle(Vector3D.Unit.PLUS_Y, PlaneAngleRadians.PI_OVER_TWO)); |
| |
| // act |
| Line3D result = line.transform(mat); |
| |
| // assert |
| Assert.assertTrue(result.contains(pt)); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, 1, -1).normalize(), result.getDirection(), TEST_EPS); |
| } |
| |
| @Test |
| public void testTransform_reflectionInOneAxis() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(1, 0, 0), Vector3D.of(1, 1, 1), TEST_PRECISION); |
| |
| Transform3D transform = FunctionTransform3D.from(v -> Vector3D.of(v.getX(), v.getY(), -v.getZ())); |
| |
| // act |
| Line3D result = line.transform(transform); |
| |
| // assert |
| Assert.assertTrue(result.contains(Vector3D.of(1, 0, 0))); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, 1, -1).normalize(), result.getDirection(), TEST_EPS); |
| } |
| |
| @Test |
| public void testTransform_reflectionInTwoAxes() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(1, 0, 0), Vector3D.of(1, 1, 1), TEST_PRECISION); |
| |
| Transform3D transform = FunctionTransform3D.from(v -> Vector3D.of(v.getX(), -v.getY(), -v.getZ())); |
| |
| // act |
| Line3D result = line.transform(transform); |
| |
| // assert |
| Assert.assertTrue(result.contains(Vector3D.of(1, 0, 0))); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, -1, -1).normalize(), result.getDirection(), TEST_EPS); |
| } |
| |
| @Test |
| public void testTransform_reflectionInThreeAxes() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(1, 0, 0), Vector3D.of(1, 1, 1), TEST_PRECISION); |
| |
| Transform3D transform = FunctionTransform3D.from(Vector3D::negate); |
| |
| // act |
| Line3D result = line.transform(transform); |
| |
| // assert |
| Assert.assertTrue(result.contains(Vector3D.of(-1, 0, 0))); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(-1, -1, -1).normalize(), result.getDirection(), TEST_EPS); |
| } |
| |
| @Test |
| public void testSubspaceTransform() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(0, 0, 1), Vector3D.of(1, 0, 0), TEST_PRECISION); |
| |
| Transform<Vector3D> transform = AffineTransformMatrix3D.identity() |
| .scale(2, 1, 1) |
| .translate(0.5, 1, 0) |
| .rotate(QuaternionRotation.fromAxisAngle(Vector3D.Unit.PLUS_Y, PlaneAngleRadians.PI_OVER_TWO)); |
| |
| // act |
| Line3D.SubspaceTransform result = line.subspaceTransform(transform); |
| |
| // assert |
| Line3D tLine = result.getLine(); |
| Transform<Vector1D> tSub = result.getTransform(); |
| |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, 1, 0), tLine.getOrigin(), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(0, 0, -1), tLine.getDirection(), TEST_EPS); |
| |
| Assert.assertEquals(0.5, tSub.apply(Vector1D.ZERO).getX(), TEST_EPS); |
| Assert.assertEquals(4.5, tSub.apply(Vector1D.of(2)).getX(), TEST_EPS); |
| } |
| |
| @Test |
| public void testAbscissa() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(0, 0, -1), Vector3D.of(4, 3, 0), TEST_PRECISION); |
| |
| // act/assert |
| Assert.assertEquals(0.0, line.abscissa(line.getOrigin()), TEST_EPS); |
| |
| Assert.assertEquals(5.0, line.abscissa(Vector3D.of(4, 3, 0)), TEST_EPS); |
| Assert.assertEquals(5.0, line.abscissa(Vector3D.of(4, 3, 10)), TEST_EPS); |
| |
| Assert.assertEquals(-5.0, line.abscissa(Vector3D.of(-4, -3, 0)), TEST_EPS); |
| Assert.assertEquals(-5.0, line.abscissa(Vector3D.of(-4, -3, -10)), TEST_EPS); |
| } |
| |
| @Test |
| public void testToSubspace() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(0, 0, -1), Vector3D.of(4, 3, 0), TEST_PRECISION); |
| |
| // act/assert |
| Assert.assertEquals(0.0, line.toSubspace(line.getOrigin()).getX(), TEST_EPS); |
| |
| Assert.assertEquals(5.0, line.toSubspace(Vector3D.of(4, 3, -1)).getX(), TEST_EPS); |
| Assert.assertEquals(5.0, line.toSubspace(Vector3D.of(4, 3, 10)).getX(), TEST_EPS); |
| |
| Assert.assertEquals(-5.0, line.toSubspace(Vector3D.of(-4, -3, -1)).getX(), TEST_EPS); |
| Assert.assertEquals(-5.0, line.toSubspace(Vector3D.of(-4, -3, -10)).getX(), TEST_EPS); |
| } |
| |
| @Test |
| public void testPointAt() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(0, 0, -1), Vector3D.of(4, 3, 0), TEST_PRECISION); |
| |
| // act/assert |
| EuclideanTestUtils.assertCoordinatesEqual(line.getOrigin(), line.pointAt(0.0), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(4, 3, -1), line.pointAt(5.0), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(-4, -3, -1), line.pointAt(-5.0), TEST_EPS); |
| } |
| |
| @Test |
| public void testToSpace() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.of(0, 0, -1), Vector3D.of(4, 3, 0), TEST_PRECISION); |
| |
| // act/assert |
| EuclideanTestUtils.assertCoordinatesEqual(line.getOrigin(), line.toSpace(Vector1D.of(0.0)), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(4, 3, -1), line.toSpace(Vector1D.of(5.0)), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(-4, -3, -1), line.toSpace(Vector1D.of(-5.0)), TEST_EPS); |
| } |
| |
| @Test |
| public void testContains() { |
| Vector3D p1 = Vector3D.of(0, 0, 1); |
| Line3D l = Line3D.fromPoints(p1, Vector3D.of(0, 0, 2), TEST_PRECISION); |
| Assert.assertTrue(l.contains(p1)); |
| Assert.assertTrue(l.contains(Vector3D.linearCombination(1.0, p1, 0.3, l.getDirection()))); |
| Vector3D u = l.getDirection().orthogonal(); |
| Vector3D v = l.getDirection().cross(u); |
| for (double alpha = 0; alpha < 2 * Math.PI; alpha += 0.3) { |
| Assert.assertTrue(! l.contains(p1.add(Vector3D.linearCombination(Math.cos(alpha), u, |
| Math.sin(alpha), v)))); |
| } |
| } |
| |
| @Test |
| public void testSimilar() { |
| Vector3D p1 = Vector3D.of(1.2, 3.4, -5.8); |
| Vector3D p2 = Vector3D.of(3.4, -5.8, 1.2); |
| Line3D lA = Line3D.fromPoints(p1, p2, TEST_PRECISION); |
| Line3D lB = Line3D.fromPoints(p2, p1, TEST_PRECISION); |
| Assert.assertTrue(lA.isSimilarTo(lB)); |
| Assert.assertTrue(!lA.isSimilarTo(Line3D.fromPoints(p1, p1.add(lA.getDirection().orthogonal()), TEST_PRECISION))); |
| } |
| |
| @Test |
| public void testPointDistance() { |
| Line3D l = Line3D.fromPoints(Vector3D.of(0, 1, 1), Vector3D.of(0, 2, 2), TEST_PRECISION); |
| Assert.assertEquals(Math.sqrt(3.0 / 2.0), l.distance(Vector3D.of(1, 0, 1)), TEST_EPS); |
| Assert.assertEquals(0, l.distance(Vector3D.of(0, -4, -4)), TEST_EPS); |
| } |
| |
| @Test |
| public void testLineDistance() { |
| Line3D l = Line3D.fromPoints(Vector3D.of(0, 1, 1), Vector3D.of(0, 2, 2), TEST_PRECISION); |
| Assert.assertEquals(1.0, |
| l.distance(Line3D.fromPoints(Vector3D.of(1, 0, 1), Vector3D.of(1, 0, 2), TEST_PRECISION)), |
| 1.0e-10); |
| Assert.assertEquals(0.5, |
| l.distance(Line3D.fromPoints(Vector3D.of(-0.5, 0, 0), Vector3D.of(-0.5, -1, -1), TEST_PRECISION)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.distance(l), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.distance(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -5, -5), TEST_PRECISION)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.distance(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -3, -4), TEST_PRECISION)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.distance(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(1, -4, -4), TEST_PRECISION)), |
| 1.0e-10); |
| Assert.assertEquals(Math.sqrt(8), |
| l.distance(Line3D.fromPoints(Vector3D.of(0, -4, 0), Vector3D.of(1, -4, 0), TEST_PRECISION)), |
| 1.0e-10); |
| } |
| |
| @Test |
| public void testClosest() { |
| Line3D l = Line3D.fromPoints(Vector3D.of(0, 1, 1), Vector3D.of(0, 2, 2), TEST_PRECISION); |
| Assert.assertEquals(0.0, |
| l.closest(Line3D.fromPoints(Vector3D.of(1, 0, 1), Vector3D.of(1, 0, 2), TEST_PRECISION)).distance(Vector3D.of(0, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.5, |
| l.closest(Line3D.fromPoints(Vector3D.of(-0.5, 0, 0), Vector3D.of(-0.5, -1, -1), TEST_PRECISION)).distance(Vector3D.of(-0.5, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.closest(l).distance(Vector3D.of(0, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.closest(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -5, -5), TEST_PRECISION)).distance(Vector3D.of(0, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.closest(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -3, -4), TEST_PRECISION)).distance(Vector3D.of(0, -4, -4)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.closest(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(1, -4, -4), TEST_PRECISION)).distance(Vector3D.of(0, -4, -4)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.closest(Line3D.fromPoints(Vector3D.of(0, -4, 0), Vector3D.of(1, -4, 0), TEST_PRECISION)).distance(Vector3D.of(0, -2, -2)), |
| 1.0e-10); |
| } |
| |
| @Test |
| public void testIntersection() { |
| Line3D l = Line3D.fromPoints(Vector3D.of(0, 1, 1), Vector3D.of(0, 2, 2), TEST_PRECISION); |
| Assert.assertNull(l.intersection(Line3D.fromPoints(Vector3D.of(1, 0, 1), Vector3D.of(1, 0, 2), TEST_PRECISION))); |
| Assert.assertNull(l.intersection(Line3D.fromPoints(Vector3D.of(-0.5, 0, 0), Vector3D.of(-0.5, -1, -1), TEST_PRECISION))); |
| Assert.assertEquals(0.0, |
| l.intersection(l).distance(Vector3D.of(0, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.intersection(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -5, -5), TEST_PRECISION)).distance(Vector3D.of(0, 0, 0)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.intersection(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(0, -3, -4), TEST_PRECISION)).distance(Vector3D.of(0, -4, -4)), |
| 1.0e-10); |
| Assert.assertEquals(0.0, |
| l.intersection(Line3D.fromPoints(Vector3D.of(0, -4, -4), Vector3D.of(1, -4, -4), TEST_PRECISION)).distance(Vector3D.of(0, -4, -4)), |
| 1.0e-10); |
| Assert.assertNull(l.intersection(Line3D.fromPoints(Vector3D.of(0, -4, 0), Vector3D.of(1, -4, 0), TEST_PRECISION))); |
| } |
| |
| @Test |
| public void testReverse() { |
| // arrange |
| Line3D line = Line3D.fromPoints(Vector3D.of(1653345.6696423641, 6170370.041579291, 90000), |
| Vector3D.of(1650757.5050732433, 6160710.879908984, 0.9), |
| TEST_PRECISION); |
| Vector3D expected = line.getDirection().negate(); |
| |
| // act |
| Line3D reversed = line.reverse(); |
| |
| // assert |
| EuclideanTestUtils.assertCoordinatesEqual(expected, reversed.getDirection(), TEST_EPS); |
| } |
| |
| @Test |
| public void testSpan() { |
| // arrange |
| Line3D line = Line3D.fromPoints(Vector3D.ZERO, Vector3D.Unit.PLUS_X, TEST_PRECISION); |
| |
| // act |
| Segment3D segment = line.span(); |
| |
| // assert |
| Assert.assertTrue(segment.isInfinite()); |
| Assert.assertSame(line, segment.getLine()); |
| Assert.assertTrue(segment.getInterval().isFull()); |
| } |
| |
| @Test |
| public void testSegment() { |
| // arrange |
| Line3D line = Line3D.fromPoints(Vector3D.of(0, 3, 0), Vector3D.of(1, 3, 0), TEST_PRECISION); |
| Interval interval = Interval.of(1, 2, TEST_PRECISION); |
| |
| // act/assert |
| Segment3D intervalArgResult = line.segment(interval); |
| Assert.assertSame(line, intervalArgResult.getLine()); |
| Assert.assertSame(interval, intervalArgResult.getInterval()); |
| |
| Segment3D doubleArgResult = line.segment(3, 4); |
| Assert.assertSame(line, doubleArgResult.getLine()); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(3, 3, 0), doubleArgResult.getStartPoint(), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(4, 3, 0), doubleArgResult.getEndPoint(), TEST_EPS); |
| |
| Segment3D ptArgResult = line.segment(Vector3D.of(0, 4, 0), Vector3D.of(2, 5, 1)); |
| Assert.assertSame(line, ptArgResult.getLine()); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(0, 3, 0), ptArgResult.getStartPoint(), TEST_EPS); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(2, 3, 0), ptArgResult.getEndPoint(), TEST_EPS); |
| |
| Segment3D fromResult = line.segmentFrom(Vector3D.of(1, 4, 0)); |
| Assert.assertSame(line, fromResult.getLine()); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, 3, 0), fromResult.getStartPoint(), TEST_EPS); |
| Assert.assertNull(fromResult.getEndPoint()); |
| |
| Segment3D toResult = line.segmentTo(Vector3D.of(1, 4, 0)); |
| Assert.assertSame(line, toResult.getLine()); |
| Assert.assertNull(toResult.getStartPoint()); |
| EuclideanTestUtils.assertCoordinatesEqual(Vector3D.of(1, 3, 0), toResult.getEndPoint(), TEST_EPS); |
| } |
| |
| @Test |
| public void testSubLine() { |
| // arrange |
| Line3D line = Line3D.fromPoints(Vector3D.of(0, 3, 0), Vector3D.of(1, 3, 0), TEST_PRECISION); |
| |
| // act |
| SubLine3D sub = line.subline(); |
| |
| // assert |
| Assert.assertSame(line, sub.getLine()); |
| Assert.assertTrue(sub.getSubspaceRegion().isEmpty()); |
| } |
| |
| @Test |
| public void testHashCode() { |
| // arrange |
| Line3D a = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), TEST_PRECISION); |
| Line3D b = Line3D.fromPointAndDirection(Vector3D.of(1, 2, -1), Vector3D.of(4, 5, 6), TEST_PRECISION); |
| Line3D c = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, -1), TEST_PRECISION); |
| Line3D d = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), new EpsilonDoublePrecisionContext(TEST_EPS + 1e-3)); |
| |
| Line3D e = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), new EpsilonDoublePrecisionContext(TEST_EPS)); |
| |
| int hash = a.hashCode(); |
| |
| // act/assert |
| Assert.assertEquals(hash, a.hashCode()); |
| |
| Assert.assertNotEquals(hash, b.hashCode()); |
| Assert.assertNotEquals(hash, c.hashCode()); |
| Assert.assertNotEquals(hash, d.hashCode()); |
| |
| Assert.assertEquals(hash, e.hashCode()); |
| } |
| |
| @Test |
| public void testEquals() { |
| // arrange |
| Line3D a = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), TEST_PRECISION); |
| Line3D b = Line3D.fromPointAndDirection(Vector3D.of(1, 2, -1), Vector3D.of(4, 5, 6), TEST_PRECISION); |
| Line3D c = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, -1), TEST_PRECISION); |
| Line3D d = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), new EpsilonDoublePrecisionContext(TEST_EPS + 1e-3)); |
| |
| Line3D e = Line3D.fromPointAndDirection(Vector3D.of(1, 2, 3), Vector3D.of(4, 5, 6), new EpsilonDoublePrecisionContext(TEST_EPS)); |
| |
| // act/assert |
| Assert.assertTrue(a.equals(a)); |
| |
| Assert.assertFalse(a.equals(null)); |
| Assert.assertFalse(a.equals(new Object())); |
| |
| Assert.assertFalse(a.equals(b)); |
| Assert.assertFalse(a.equals(c)); |
| Assert.assertFalse(a.equals(d)); |
| |
| Assert.assertTrue(a.equals(e)); |
| Assert.assertTrue(e.equals(a)); |
| } |
| |
| @Test |
| public void testToString() { |
| // arrange |
| Line3D line = Line3D.fromPointAndDirection(Vector3D.ZERO, Vector3D.Unit.PLUS_X, TEST_PRECISION); |
| |
| // act |
| String str = line.toString(); |
| |
| // assert |
| Assert.assertTrue(str.contains("Line3D")); |
| Assert.assertTrue(str.matches(".*origin= \\(0(\\.0)?, 0(\\.0)?, 0(\\.0)?\\).*")); |
| Assert.assertTrue(str.matches(".*direction= \\(1(\\.0)?, 0(\\.0)?, 0(\\.0)?\\).*")); |
| } |
| } |