public void TestCyrusBeck()
{
Console.WriteLine($"========== Cyrus-Beck Algorithm ===========");
Geometry2D.SegmentIntersection segmentIntersection1 = Geometry2D.ClippingLineSegmentToEdge(
new LineSegment(new Vector2(0, 0), new Vector2(10, 10)),
new LineSegment(new Vector2(10, 0), new Vector2(0, 10)));
Console.WriteLine($"<시작점이 바깥에 있는 경우> State:{segmentIntersection1.State} Clip:{segmentIntersection1.Clip}");
Geometry2D.SegmentIntersection segmentIntersection2 = Geometry2D.ClippingLineSegmentToEdge(
new LineSegment(new Vector2(0, 0), new Vector2(10, 10)),
new LineSegment(new Vector2(0, 10), new Vector2(10, 0)));
Console.WriteLine($"<시작점이 안쪽에 있는 경우> State:{segmentIntersection2.State} Clip:{segmentIntersection2.Clip}");
Console.WriteLine($"===========================================");
}
static void Main(string[] args)
{
Console.WriteLine($"======== CCW ========");
double positive = Geometry2D.CCW(new Vector2(0, 0.5), new Vector2(0, 0), new Vector2(1, 1));
Console.WriteLine($"CCW Cross +: {positive}");
double negative = Geometry2D.CCW(new Vector2(0.5, 0), new Vector2(0, 0), new Vector2(1, 1));
Console.WriteLine($"CCW Cross -: {negative}");
double parallel = Geometry2D.CCW(new Vector2(0.5, 0.5), new Vector2(0, 0), new Vector2(1, 1));
Console.WriteLine($"CCW Cross 0: {parallel}");
Console.WriteLine($"=====================");
Console.WriteLine($"======== Line Intersection ========");
Line a = new Line(new Vector2(0, 0), new Vector2(10, 10) - new Vector2(0, 0));
Line b = new Line(new Vector2(10, 0), new Vector2(0, 10) - new Vector2(1, 0));
Geometry2D.Intersection intersection = Geometry2D.GetLineIntersection(a, b);
Console.WriteLine($"Is Parallel:{intersection.IsParallel}, Point:{intersection.IntersectPoint}");
Console.WriteLine($"===================================");
Console.WriteLine($"========== Cyrus-Beck Algorithm ===========");
Geometry2D.SegmentIntersection segmentIntersection1 = Geometry2D.ClippingLineSegmentToEdge(
new LineSegment(new Vector2(0, 0), new Vector2(10, 10)),
new LineSegment(new Vector2(10, 0), new Vector2(0, 10)));
Console.WriteLine($"<시작점이 바깥에 있는 경우> State:{segmentIntersection1.State} Clip:{segmentIntersection1.Clip}");
Geometry2D.SegmentIntersection segmentIntersection2 = Geometry2D.ClippingLineSegmentToEdge(
new LineSegment(new Vector2(0, 0), new Vector2(10, 10)),
new LineSegment(new Vector2(0, 10), new Vector2(10, 0)));
Console.WriteLine($"<시작점이 안쪽에 있는 경우> State:{segmentIntersection2.State} Clip:{segmentIntersection2.Clip}");
Console.WriteLine($"===========================================");
Console.WriteLine($"========== 도형의 넓이 구하기 ===========");
double boxArea = Geometry2D.Area(new[]
{
new Vector2(0, 0),
new Vector2(10, 0),
new Vector2(10, 10),
new Vector2(0, 10)
});
Console.WriteLine($"사각형의 넓이(가로:{10},세로:{10}) , {boxArea}");
double triArea = Geometry2D.Area(new[]
{
new Vector2(0, 0),
new Vector2(10, 0),
new Vector2(5, 10)
});
Console.WriteLine($"삼각형의 넓이(가로:{10},세로:{10}) , {triArea}");
Console.WriteLine($"===========================================");
Clipper2D clipper2d = new Clipper2D();
List <Vector2> clipWindow = new List <Vector2>()
{
new Vector2(0, 0),
new Vector2(10, 0),
new Vector2(10, 10),
new Vector2(0, 10)
};
List <Vector2> subjectPolygon = new List <Vector2>()
{
//new Vector2(5, 5),
//new Vector2(20, 20),
//new Vector2(5, 20)
new Vector2(5, 5),
new Vector2(20, 5),
new Vector2(20, 20),
new Vector2(5, 20)
};
List <Vector2> clipResult = new List <Vector2>(100);
clipper2d.Clip(clipWindow, subjectPolygon, clipResult);
int i = 0;
foreach (Vector2 vector2 in clipResult)
{
Console.WriteLine($"{i}: {vector2}");
i++;
}
}
