Baljit Singh created GEOMETRY-86:
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Summary: Point2S.antipodal() is incorrect.
Key: GEOMETRY-86
URL: https://issues.apache.org/jira/browse/GEOMETRY-86
Project: Apache Commons Geometry
Issue Type: Bug
Reporter: Baljit Singh
The antipodal calculation is invalid.
{code:java}
@Test
public void testAntipodal() {
Point2S point = Point2S.of(0.0, 0.0).antipodal();
Point2S copy = Point2S.from(point.getVector());
System.out.println(point);
System.out.println(copy);
}
{code}
This prints:
(0.0, 3.141592653589793)
(3.141592653589793, 3.141592653589793)
SphericalTestUtils.assertPointsEq does not detect the error because the
point.getVector() and copy.getVector(0 are equal, and therefore the distance
between these points is equal.
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