public void StaticIntersectionTest(double firstOriginX, double firstOriginY, double firstDirectionX, double firstDirectionY,
double secondOriginX, double secondOriginY, double secondDirectionX, double secondDirectionY, double resultX, double resultY)
{
var firstRay = new Ray2D(new Point2D(firstOriginX, firstOriginY), new Vector2D(firstDirectionX, firstDirectionY));
var secondRay = new Ray2D(new Point2D(secondOriginX, secondOriginY), new Vector2D(secondDirectionX, secondDirectionY));
var intersectionPoint = Ray2D.Intersection(firstRay, secondRay);
if (resultX == double.PositiveInfinity || resultY == double.PositiveInfinity)
{
Assert.AreEqual(null, intersectionPoint);
}
else
{
Assert.AreEqual(resultX, intersectionPoint.X, Helper.E);
Assert.AreEqual(resultY, intersectionPoint.Y, Helper.E);
}
var intersectionPoint2 = Ray2D.Intersection(secondRay, firstRay);
if (resultX == double.PositiveInfinity || resultY == double.PositiveInfinity)
{
Assert.AreEqual(null, intersectionPoint2);
}
else
{
Assert.AreEqual(resultX, intersectionPoint2.X, Helper.E);
Assert.AreEqual(resultY, intersectionPoint2.Y, Helper.E);
}
}
public IEnumerable <Point2D> Intersections(List <Ray2D> rays)
{
var results = new List <Point2D>();
for (var i = 0; i < rays.Count - 1; i++)
{
for (var j = i + 1; j < rays.Count; j++)
{
results.Add(Ray2D.Intersection(rays[i], rays[j]));
}
}
return(results);
}
public static Point?GetNearest(Circle2D c, Point p)
{
Ray2D r = new Ray2D(c.Center, p);
return(GetNearest(r.Intersection(c), p));
}