Examples of DiskGenerator

Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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                        // delegate to 2D disk generator
                        final Plane p = new Plane(vA, vB, vC,
                                                  1.0e-10 * (vA.getNorm1() + vB.getNorm1() + vC.getNorm1()));
                        final EnclosingBall<Euclidean2D, Vector2D> disk =
                                new DiskGenerator().ballOnSupport(Arrays.asList(p.toSubSpace(vA),
                                                                                p.toSubSpace(vB),
                                                                                p.toSubSpace(vC)));

                        // convert back to 3D
                        return new EnclosingBall<Euclidean3D, Vector3D>(p.toSpace(disk.getCenter()),
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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                        // delegate to 2D disk generator
                        final Plane p = new Plane(vA, vB, vC,
                                                  1.0e-10 * (vA.getNorm1() + vB.getNorm1() + vC.getNorm1()));
                        final EnclosingBall<Euclidean2D, Vector2D> disk =
                                new DiskGenerator().ballOnSupport(Arrays.asList(p.toSubSpace(vA),
                                                                                p.toSubSpace(vB),
                                                                                p.toSubSpace(vC)));

                        // convert back to 3D
                        return new EnclosingBall<Euclidean3D, Vector3D>(p.toSpace(disk.getCenter()),
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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public class WelzlEncloser2DTest {

    @Test
    public void testNullList() {
        DiskGenerator generator = new DiskGenerator();
        WelzlEncloser<Euclidean2D, Vector2D> encloser =
                new WelzlEncloser<Euclidean2D, Vector2D>(1.0e-10, generator);
        EnclosingBall<Euclidean2D, Vector2D> ball = encloser.enclose(null);
        Assert.assertTrue(ball.getRadius() < 0);
    }
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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        Assert.assertTrue(ball.getRadius() < 0);
    }

    @Test
    public void testNoPoints() {
        DiskGenerator generator = new DiskGenerator();
        WelzlEncloser<Euclidean2D, Vector2D> encloser =
                new WelzlEncloser<Euclidean2D, Vector2D>(1.0e-10, generator);
        EnclosingBall<Euclidean2D, Vector2D> ball = encloser.enclose(new ArrayList<Vector2D>());
        Assert.assertTrue(ball.getRadius() < 0);
    }
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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    private void checkDisk(List<Vector2D> points, List<Vector2D> refSupport) {

        EnclosingBall<Euclidean2D, Vector2D> disk = checkDisk(points);

        // compare computed disk with expected disk
        DiskGenerator generator = new DiskGenerator();
        EnclosingBall<Euclidean2D, Vector2D> expected = generator.ballOnSupport(refSupport);
        Assert.assertEquals(refSupport.size(), disk.getSupportSize());
        Assert.assertEquals(expected.getRadius(),        disk.getRadius(),        1.0e-10);
        Assert.assertEquals(expected.getCenter().getX(), disk.getCenter().getX(), 1.0e-10);
        Assert.assertEquals(expected.getCenter().getY(), disk.getCenter().getY(), 1.0e-10);

        for (Vector2D s : disk.getSupport()) {
            boolean found = false;
            for (Vector2D rs : refSupport) {
                if (s == rs) {
                    found = true;
                }
            }
            Assert.assertTrue(found);
        }

        // check removing any point of the support disk fails to enclose the point
        for (int i = 0; i < disk.getSupportSize(); ++i) {
            List<Vector2D> reducedSupport = new ArrayList<Vector2D>();
            int count = 0;
            for (Vector2D s : disk.getSupport()) {
                if (count++ != i) {
                    reducedSupport.add(s);
                }
            }
            EnclosingBall<Euclidean2D, Vector2D> reducedDisk = generator.ballOnSupport(reducedSupport);
            boolean foundOutside = false;
            for (int j = 0; j < points.size() && !foundOutside; ++j) {
                if (!reducedDisk.contains(points.get(j), 1.0e-10)) {
                    foundOutside = true;
                }
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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    }

    private EnclosingBall<Euclidean2D, Vector2D> checkDisk(List<Vector2D> points) {

        WelzlEncloser<Euclidean2D, Vector2D> encloser =
                new WelzlEncloser<Euclidean2D, Vector2D>(1.0e-10, new DiskGenerator());
        EnclosingBall<Euclidean2D, Vector2D> disk = encloser.enclose(points);

        // all points are enclosed
        for (Vector2D v : points) {
            Assert.assertTrue(disk.contains(v, 1.0e-10));
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Examples of org.apache.commons.math3.geometry.euclidean.twod.DiskGenerator

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            }

            canvas.getLayer().addChild(hullNode);

            Encloser<Euclidean2D, Vector2D> encloser =
                    new WelzlEncloser<Euclidean2D, Vector2D>(1e-10, new DiskGenerator());
            EnclosingBall<Euclidean2D, Vector2D> ball = encloser.enclose(points);

            final double radius = ball.getRadius();
            PPath ballCenter =
                    PPath.createEllipse(ball.getCenter().getX() - 1, ball.getCenter().getY() - 1, 2, 2);
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