@Test
public void testCentralSymmetry() {
IPoint pt = ShapeFactory.createPoint();
assertNull(pt.centralSymmetry(null));
assertEquals(
ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(1, 0).centralSymmetry(pt));
assertEquals(
ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, 1).centralSymmetry(pt));
assertEquals(
ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(-1, 0).centralSymmetry(pt));
assertEquals(
ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, -1).centralSymmetry(pt));
}
@Test
public void testHorizontalSymmetry() {
IPoint pt = ShapeFactory.createPoint(10., 10.);
assertNull(pt.horizontalSymmetry(null));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(Double.NaN, 1.)));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(1., Double.NaN)));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(Double.POSITIVE_INFINITY, 1.)));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(1., Double.POSITIVE_INFINITY)));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(Double.NEGATIVE_INFINITY, 1.)));
assertNull(pt.horizontalSymmetry(ShapeFactory.createPoint(1., Double.NEGATIVE_INFINITY)));
assertEquals(
pt.horizontalSymmetry(ShapeFactory.createPoint(0., 0.)),
ShapeFactory.createPoint(-10., 10.));
assertEquals(
pt.horizontalSymmetry(ShapeFactory.createPoint(0., 18780.)),
ShapeFactory.createPoint(-10., 10.));
assertEquals(
ShapeFactory.createPoint(-10., 10.)
.horizontalSymmetry(ShapeFactory.createPoint(0., 18780.)),
pt);
assertEquals(
ShapeFactory.createPoint(0., 0.).horizontalSymmetry(ShapeFactory.createPoint(0., 0.)),
ShapeFactory.createPoint(0., 0.));
}
@Test
public void testLPoint() {
IPoint pt = ShapeFactory.createPoint(1., -200.);
assertEquals(ShapeFactory.createPoint(), ShapeFactory.createPoint(0., 0.));
assertEquals(pt.getX(), 1., 0.1);
assertEquals(pt.getY(), -200., 0.1);
pt = ShapeFactory.createPoint((IPoint) null);
assertEquals(pt.getX(), 0., 0.1);
assertEquals(pt.getY(), 0., 0.1);
pt = ShapeFactory.createPoint(ShapeFactory.createPoint(-1.34, Double.POSITIVE_INFINITY));
assertEquals(pt.getX(), -1.34, 0.1);
assertEquals(pt.getY(), Double.POSITIVE_INFINITY, 0.1);
}
@Test
public void testTranslate() {
IPoint pt1 = ShapeFactory.createPoint(2., 1.);
IPoint pt2 = ShapeFactory.createPoint(2., 1.);
pt1.translate(Double.NaN, Double.NaN);
assertEquals(pt1, pt2);
pt1.translate(Double.NaN, 2.);
assertEquals(pt1, pt2);
pt1.translate(2., Double.NaN);
assertEquals(pt1, pt2);
pt1.translate(Double.POSITIVE_INFINITY, Double.POSITIVE_INFINITY);
assertEquals(pt1, pt2);
pt1.translate(Double.POSITIVE_INFINITY, 2.);
assertEquals(pt1, pt2);
pt1.translate(2., Double.POSITIVE_INFINITY);
assertEquals(pt1, pt2);
pt1.translate(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY);
assertEquals(pt1, pt2);
pt1.translate(Double.NEGATIVE_INFINITY, 2.);
assertEquals(pt1, pt2);
pt1.translate(2., Double.NEGATIVE_INFINITY);
assertEquals(pt1, pt2);
pt1.translate(0., 0.);
assertEquals(pt1, pt2);
pt1.translate(0., 10.);
assertEquals(pt1, ShapeFactory.createPoint(2., 11.));
pt1.translate(0., -12.);
assertEquals(pt1, ShapeFactory.createPoint(2., -1.));
pt1.translate(5., 0.);
assertEquals(pt1, ShapeFactory.createPoint(7., -1.));
pt1.translate(-4., 0.);
assertEquals(pt1, ShapeFactory.createPoint(3., -1.));
pt1.translate(3.12, 7.98);
assertEquals(pt1, ShapeFactory.createPoint(6.12, 6.98));
}
@Test
public void testRotatePoint() {
IPoint pt = ShapeFactory.createPoint();
assertNull(pt.rotatePoint(null, 0));
assertNull(pt.rotatePoint(null, 0));
assertNull(pt.rotatePoint(ShapeFactory.createPoint(), Double.NaN));
assertNull(pt.rotatePoint(ShapeFactory.createPoint(), Double.NEGATIVE_INFINITY));
assertNull(pt.rotatePoint(ShapeFactory.createPoint(), Double.POSITIVE_INFINITY));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(1, 0).rotatePoint(ShapeFactory.createPoint(), Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(0, 1).rotatePoint(ShapeFactory.createPoint(), Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(-1, 0).rotatePoint(ShapeFactory.createPoint(), Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(0, -1).rotatePoint(ShapeFactory.createPoint(), Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(1, 0).rotatePoint(pt, -3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(0, 1).rotatePoint(pt, -3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(-1, 0).rotatePoint(pt, -3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(0, -1).rotatePoint(pt, -3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(1, 0).rotatePoint(pt, Math.PI));
assertEquals(
ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, 1).rotatePoint(pt, Math.PI));
assertEquals(
ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(-1, 0).rotatePoint(pt, Math.PI));
assertEquals(
ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, -1).rotatePoint(pt, Math.PI));
assertEquals(
ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(1, 0).rotatePoint(pt, -Math.PI));
assertEquals(
ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, 1).rotatePoint(pt, -Math.PI));
assertEquals(
ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(-1, 0).rotatePoint(pt, -Math.PI));
assertEquals(
ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, -1).rotatePoint(pt, -Math.PI));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(1, 0).rotatePoint(pt, 3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(0, 1).rotatePoint(pt, 3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(-1, 0).rotatePoint(pt, 3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(0, -1).rotatePoint(pt, 3. * Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(1, 0).rotatePoint(pt, -Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(0, 1).rotatePoint(pt, -Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(-1, 0).rotatePoint(pt, -Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(0, -1).rotatePoint(pt, -Math.PI / 2.));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(1, 0).rotatePoint(pt, 2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(0, 1).rotatePoint(pt, 2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(-1, 0).rotatePoint(pt, 2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(0, -1).rotatePoint(pt, 2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(1, 0),
ShapeFactory.createPoint(1, 0).rotatePoint(pt, -2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(0, 1),
ShapeFactory.createPoint(0, 1).rotatePoint(pt, -2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(-1, 0),
ShapeFactory.createPoint(-1, 0).rotatePoint(pt, -2. * Math.PI));
assertEquals(
ShapeFactory.createPoint(0, -1),
ShapeFactory.createPoint(0, -1).rotatePoint(pt, -2. * Math.PI));
assertEquals(ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(1, 0).rotatePoint(pt, 0));
assertEquals(ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, 1).rotatePoint(pt, 0));
assertEquals(
ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(-1, 0).rotatePoint(pt, 0));
assertEquals(
ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, -1).rotatePoint(pt, 0));
}
@Test
public void testComputeRotationAngle() {
IPoint pt1 = ShapeFactory.createPoint();
assertEquals(Double.NaN, pt1.computeRotationAngle(null, null), 0.1);
assertEquals(Double.NaN, pt1.computeRotationAngle(ShapeFactory.createPoint(), null), 0.1);
assertEquals(Double.NaN, pt1.computeRotationAngle(null, ShapeFactory.createPoint()), 0.1);
assertEquals(
0.,
pt1.computeRotationAngle(ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(1, 0)),
0.1);
assertEquals(
0.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, 1)),
0.1);
assertEquals(
0.,
pt1.computeRotationAngle(ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(-1, 0)),
0.1);
assertEquals(
0.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, -1)),
0.1);
assertEquals(
Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(0, 1)),
0.1);
assertEquals(
Math.PI,
Math.abs(
pt1.computeRotationAngle(
ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(-1, 0))),
0.1);
assertEquals(
3. * Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(1, 0), ShapeFactory.createPoint(0, -1)),
0.1);
assertEquals(
Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(-1, 0)),
0.1);
assertEquals(
Math.PI,
Math.abs(
pt1.computeRotationAngle(
ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(0, -1))),
0.1);
assertEquals(
-Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, 1), ShapeFactory.createPoint(1, 0)),
0.1);
assertEquals(
Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(0, -1)),
0.1);
assertEquals(
Math.PI,
Math.abs(
pt1.computeRotationAngle(
ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(1, 0))),
0.1);
assertEquals(
-Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(-1, 0), ShapeFactory.createPoint(0, 1)),
0.1);
assertEquals(
-3. * Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(1, 0)),
0.1);
assertEquals(
Math.PI,
Math.abs(
pt1.computeRotationAngle(
ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(0, 1))),
0.1);
assertEquals(
-Math.PI / 2.,
pt1.computeRotationAngle(ShapeFactory.createPoint(0, -1), ShapeFactory.createPoint(-1, 0)),
0.1);
}
@Test
public void testComputeAngle() {
IPoint pt1 = ShapeFactory.createPoint();
assertEquals(Double.NaN, pt1.computeAngle(null), 0.1);
assertEquals(0., pt1.computeAngle(ShapeFactory.createPoint(1, 0)), 0.1);
assertEquals(Math.PI / 2., pt1.computeAngle(ShapeFactory.createPoint(0, 1)), 0.1);
assertEquals(Math.PI, pt1.computeAngle(ShapeFactory.createPoint(-1, 0)), 0.1);
assertEquals(3. * Math.PI / 2., pt1.computeAngle(ShapeFactory.createPoint(0, -1)), 0.1);
pt1.setPoint(1, 1);
assertEquals(0., pt1.computeAngle(ShapeFactory.createPoint(2, 1)), 0.1);
assertEquals(Math.PI / 2., pt1.computeAngle(ShapeFactory.createPoint(1, 2)), 0.1);
assertEquals(Math.PI, pt1.computeAngle(ShapeFactory.createPoint(0, 1)), 0.1);
assertEquals(3. * Math.PI / 2., pt1.computeAngle(ShapeFactory.createPoint(1, 0)), 0.1);
}