1 package org.opencv.test.core; 2 3 import org.opencv.core.Point; 4 import org.opencv.core.Rect; 5 import org.opencv.core.RotatedRect; 6 import org.opencv.core.Size; 7 import org.opencv.test.OpenCVTestCase; 8 9 public class RotatedRectTest extends OpenCVTestCase { 10 11 private double angle; 12 private Point center; 13 private Size size; 14 15 @Override 16 protected void setUp() throws Exception { 17 super.setUp(); 18 19 center = new Point(matSize / 2, matSize / 2); 20 size = new Size(matSize / 4, matSize / 2); 21 angle = 40; 22 } 23 24 public void testBoundingRect() { 25 size = new Size(matSize / 2, matSize / 2); 26 assertEquals(size.height, size.width); 27 double length = size.height; 28 29 angle = 45; 30 RotatedRect rr = new RotatedRect(center, size, angle); 31 32 Rect r = rr.boundingRect(); 33 double halfDiagonal = length * Math.sqrt(2) / 2; 34 35 assertTrue((r.x == Math.floor(center.x - halfDiagonal)) && (r.y == Math.floor(center.y - halfDiagonal))); 36 37 assertTrue((r.br().x >= Math.ceil(center.x + halfDiagonal)) && (r.br().y >= Math.ceil(center.y + halfDiagonal))); 38 39 assertTrue((r.br().x - Math.ceil(center.x + halfDiagonal)) <= 1 && (r.br().y - Math.ceil(center.y + halfDiagonal)) <= 1); 40 } 41 42 public void testClone() { 43 RotatedRect rrect = new RotatedRect(center, size, angle); 44 RotatedRect clone = rrect.clone(); 45 46 assertTrue(clone != null); 47 assertTrue(rrect.center.equals(clone.center)); 48 assertTrue(rrect.size.equals(clone.size)); 49 assertTrue(rrect.angle == clone.angle); 50 } 51 52 public void testEqualsObject() { 53 Point center2 = new Point(matSize / 3, matSize / 1.5); 54 Size size2 = new Size(matSize / 2, matSize / 4); 55 double angle2 = 0; 56 57 RotatedRect rrect1 = new RotatedRect(center, size, angle); 58 RotatedRect rrect2 = new RotatedRect(center2, size2, angle2); 59 RotatedRect rrect3 = rrect1; 60 RotatedRect clone1 = rrect1.clone(); 61 RotatedRect clone2 = rrect2.clone(); 62 63 assertTrue(rrect1.equals(rrect3)); 64 assertTrue(!rrect1.equals(rrect2)); 65 66 assertTrue(rrect2.equals(clone2)); 67 clone2.angle = 10; 68 assertTrue(!rrect2.equals(clone2)); 69 70 assertTrue(rrect1.equals(clone1)); 71 72 clone1.center.x += 1; 73 assertTrue(!rrect1.equals(clone1)); 74 75 clone1.center.x -= 1; 76 assertTrue(rrect1.equals(clone1)); 77 78 clone1.size.width += 1; 79 assertTrue(!rrect1.equals(clone1)); 80 81 assertTrue(!rrect1.equals(size)); 82 } 83 84 public void testHashCode() { 85 RotatedRect rr = new RotatedRect(center, size, angle); 86 assertEquals(rr.hashCode(), rr.hashCode()); 87 } 88 89 public void testPoints() { 90 RotatedRect rrect = new RotatedRect(center, size, angle); 91 92 Point p[] = new Point[4]; 93 rrect.points(p); 94 95 boolean is_p0_irrational = (100 * p[0].x != (int) (100 * p[0].x)) && (100 * p[0].y != (int) (100 * p[0].y)); 96 boolean is_p1_irrational = (100 * p[1].x != (int) (100 * p[1].x)) && (100 * p[1].y != (int) (100 * p[1].y)); 97 boolean is_p2_irrational = (100 * p[2].x != (int) (100 * p[2].x)) && (100 * p[2].y != (int) (100 * p[2].y)); 98 boolean is_p3_irrational = (100 * p[3].x != (int) (100 * p[3].x)) && (100 * p[3].y != (int) (100 * p[3].y)); 99 100 assertTrue(is_p0_irrational && is_p1_irrational && is_p2_irrational && is_p3_irrational); 101 102 assertTrue("Symmetric points 0 and 2", 103 Math.abs((p[0].x + p[2].x) / 2 - center.x) + Math.abs((p[0].y + p[2].y) / 2 - center.y) < EPS); 104 105 assertTrue("Symmetric points 1 and 3", 106 Math.abs((p[1].x + p[3].x) / 2 - center.x) + Math.abs((p[1].y + p[3].y) / 2 - center.y) < EPS); 107 108 assertTrue("Orthogonal vectors 01 and 12", 109 Math.abs((p[1].x - p[0].x) * (p[2].x - p[1].x) + 110 (p[1].y - p[0].y) * (p[2].y - p[1].y)) < EPS); 111 112 assertTrue("Orthogonal vectors 12 and 23", 113 Math.abs((p[2].x - p[1].x) * (p[3].x - p[2].x) + 114 (p[2].y - p[1].y) * (p[3].y - p[2].y)) < EPS); 115 116 assertTrue("Orthogonal vectors 23 and 30", 117 Math.abs((p[3].x - p[2].x) * (p[0].x - p[3].x) + 118 (p[3].y - p[2].y) * (p[0].y - p[3].y)) < EPS); 119 120 assertTrue("Orthogonal vectors 30 and 01", 121 Math.abs((p[0].x - p[3].x) * (p[1].x - p[0].x) + 122 (p[0].y - p[3].y) * (p[1].y - p[0].y)) < EPS); 123 124 assertTrue("Length of the vector 01", 125 Math.abs((p[1].x - p[0].x) * (p[1].x - p[0].x) + 126 (p[1].y - p[0].y) * (p[1].y - p[0].y) - size.height * size.height) < EPS); 127 128 assertTrue("Length of the vector 21", 129 Math.abs((p[1].x - p[2].x) * (p[1].x - p[2].x) + 130 (p[1].y - p[2].y) * (p[1].y - p[2].y) - size.width * size.width) < EPS); 131 132 assertTrue("Angle of the vector 21 with the axes", Math.abs((p[2].x - p[1].x) / size.width - Math.cos(angle * Math.PI / 180)) < EPS); 133 } 134 135 public void testRotatedRect() { 136 RotatedRect rr = new RotatedRect(); 137 138 assertTrue(rr != null); 139 assertTrue(rr.center != null); 140 assertTrue(rr.size != null); 141 assertTrue(rr.angle == 0.0); 142 } 143 144 public void testRotatedRectDoubleArray() { 145 double[] vals = { 1.5, 2.6, 3.7, 4.2, 5.1 }; 146 RotatedRect rr = new RotatedRect(vals); 147 148 assertNotNull(rr); 149 assertEquals(1.5, rr.center.x); 150 assertEquals(2.6, rr.center.y); 151 assertEquals(3.7, rr.size.width); 152 assertEquals(4.2, rr.size.height); 153 assertEquals(5.1, rr.angle); 154 } 155 156 public void testRotatedRectPointSizeDouble() { 157 RotatedRect rr = new RotatedRect(center, size, 40); 158 159 assertTrue(rr != null); 160 assertTrue(rr.center != null); 161 assertTrue(rr.size != null); 162 assertTrue(rr.angle == 40.0); 163 } 164 165 public void testSet() { 166 double[] vals1 = {}; 167 RotatedRect r1 = new RotatedRect(center, size, 40); 168 169 r1.set(vals1); 170 171 assertEquals(0., r1.angle); 172 assertPointEquals(new Point(0, 0), r1.center, EPS); 173 assertSizeEquals(new Size(0, 0), r1.size, EPS); 174 175 double[] vals2 = { 1, 2, 3, 4, 5 }; 176 RotatedRect r2 = new RotatedRect(center, size, 40); 177 178 r2.set(vals2); 179 180 assertEquals(5., r2.angle); 181 assertPointEquals(new Point(1, 2), r2.center, EPS); 182 assertSizeEquals(new Size(3, 4), r2.size, EPS); 183 } 184 185 public void testToString() { 186 String actual = new RotatedRect(new Point(1, 2), new Size(10, 12), 4.5).toString(); 187 String expected = "{ {1.0, 2.0} 10x12 * 4.5 }"; 188 assertEquals(expected, actual); 189 } 190 191 } 192
