/// <returns>
/// the intersection of the two lines if it is a point, or <c>null</c> otherwise
/// </returns>
public static Point2D?PointIntersectionWithLine(this BoundaryLine2D line1, Line2D line2)
{
var dotProduct = line1.HalfPlane.DirectionTowardInterior.DotProduct(line2.Direction);
if (Math.Abs(dotProduct) <= Unit.ZeroDotProductTolerance)
{
// The lines are approximately parallel.
return(null);
}
return(line1.PointIntersectionWithLineUnstable(line2.GetPortSide().Boundary));
}
/// <returns> /// the intersection of the two lines if it is a point, or <c>null</c> otherwise /// </returns> public static Point2D?PointIntersection(this Line2D line1, Line2D line2) => line1.GetPortSide().Boundary.PointIntersectionWithLine(line2);
public static Distance DistanceTo(this Point2D point, Line2D line) => point.DistanceTo(line.GetPortSide().Boundary);