Examples with AlgebraicLine imagingbook.pub.geometry.lines.AlgebraicLine used on opensource projects

Example 1 with AlgebraicLine

use of imagingbook.pub.geometry.lines.AlgebraicLine in project imagingbook-common by imagingbook.

the class HoughLineTest method test0.

@Test
public void test0() {
    // example from CV lecture notes
    Pnt2d xRef = PntInt.from(90, 60);
    AlgebraicLine h12 = AlgebraicLine.from(p1, p2);
    HoughLine L12 = new HoughLine(h12, xRef.getX(), xRef.getY(), 0);
    Assert.assertEquals(0.0, L12.getDistance(p1), 1E-6);
    Assert.assertEquals(0.0, L12.getDistance(p2), 1E-6);
}

Example 2 with AlgebraicLine

use of imagingbook.pub.geometry.lines.AlgebraicLine in project imagingbook-common by imagingbook.

the class HoughLineTest method test3.

@Test
public void test3() {
    // lA, lH1 lH2 must be the same lines:
    AlgebraicLine LA = AlgebraicLine.from(p1, p2);
    HoughLine L1 = HoughLine.fromPoints(p1, p2, pRef, 2);
    HoughLine L2 = new HoughLine(LA, pRef.getX(), pRef.getY(), 2);
    Assert.assertEquals(0.0, LA.getDistance(p1), 1E-6);
    Assert.assertEquals(0.0, LA.getDistance(p2), 1E-6);
    Assert.assertEquals(0.0, L1.getDistance(p1), 1E-6);
    Assert.assertEquals(0.0, L1.getDistance(p2), 1E-6);
    Assert.assertEquals(0.0, L2.getDistance(p1), 1E-6);
    Assert.assertEquals(0.0, L2.getDistance(p2), 1E-6);
}

Example 3 with AlgebraicLine

use of imagingbook.pub.geometry.lines.AlgebraicLine in project imagingbook-common by imagingbook.

the class HoughLineTest method test5.

@Test
public void test5() {
    // Example is used in CV lecture notes
    // create L1 (zero-referenced):
    double a1 = -90, b1 = 170, c1 = 1000;
    AlgebraicLine L1 = new AlgebraicLine(a1, b1, c1);
    // create L2 (with specific reference point):
    double xR = 10, yR = 50;
    double a2 = a1, b2 = b1, c2 = c1 + a1 * xR + b1 * yR;
    HoughLine L2 = new HoughLine(a2, b2, c2, xR, yR, 0);
    // make sure both are "equivalent" (contain the same points (x,y))
    Assert.assertTrue(L1.equals(L2));
    Assert.assertTrue(L2.equals(L1));
}