public ILineSegment Resize(IntersectionDetector detector)
{
LineSegment lineSegment = new LineSegment(PointA, PointB, new Point(0, 0));
lineSegment.Id = Id;
Dictionary<ILineSegment, Point> intersections = detector.FindIntersections(lineSegment);
foreach (KeyValuePair<ILineSegment, Point> intersection in intersections)
{
if (intersection.Key.TriangulationPoint.X != 0 && intersection.Key.TriangulationPoint.Y != 0)
{
Point closestPoint;
if (intersection.Key.TriangulateClosestEndPoint(this, out closestPoint))
{
if (lineSegment.PointA == closestPoint)
{
lineSegment.PointA = intersection.Value;
}
else
{
lineSegment.PointB = intersection.Value;
}
}
}
}
return lineSegment;
}
public bool TriangulateClosestEndPoint(ILineSegment intersectingLineSegment, out Point closestPoint)
{
ILineSegment pointASegment = new LineSegment(intersectingLineSegment.PointA, TriangulationPoint);
ILineSegment pointBSegment = new LineSegment(intersectingLineSegment.PointB, TriangulationPoint);
IntersectionDetector detector = new IntersectionDetector();
detector.Add(pointASegment);
detector.Add(pointBSegment);
ILineSegment closestSegment;
Point closestSegmentIntersectionPoint;
ILineSegment segment = new LineSegment(this.PointA, this.PointB, this.TriangulationPoint, true);
if (detector.FindIntersection(segment, out closestSegment, out closestSegmentIntersectionPoint))
{
closestPoint = closestSegment.PointA;
return true;
}
else
{
closestPoint = new Point(0, 0);
return false;
}
}