public void LineSegmentsDoNotIntersect()
{
Vector intersection;
var actual = LineSegment.LineSegementsIntersect(
new Vector(3, 0),
new Vector(3, 4),
new Vector(0, 5),
new Vector(5, 5),
out intersection);
Assert.IsFalse(actual);
}
public void LineSegmentsIntersect()
{
Vector intersection;
var actual = LineSegment.LineSegementsIntersect(
new Vector(0, 0),
new Vector(5, 5),
new Vector(0, 5),
new Vector(5, 0),
out intersection);
Assert.IsTrue(actual);
Assert.AreEqual(new Vector(2.5, 2.5), intersection);
}
public void LineSegmentsAreCollinearAndOverlapping()
{
Vector intersection;
var actual = LineSegment.LineSegementsIntersect(
new Vector(0, 0),
new Vector(2, 0),
new Vector(1, 0),
new Vector(3, 0),
out intersection,
considerOverlapAsIntersect: true);
Assert.IsTrue(actual);
Assert.AreEqual(double.NaN, intersection.X);
Assert.AreEqual(double.NaN, intersection.Y);
}