private Locus <T> CombineIntersections(PointLocus <T> current, MultiPointLocus <T> addition)
{
if (!ContainsPoint(addition, current))
{
addition.Points.Add(current.IntersectionPoint);
}
return(addition);
}
private Locus <T> CombineIntersections(MultiPointLocus <T> current, PointLocus <T> addition)
{
if (!ContainsPoint(current, addition))
{
current.Points.Add(addition.IntersectionPoint);
}
return(current);
}
private Locus <T> CombineIntersections(PointLocus <T> current, PointLocus <T> addition)
{
if (current.Equals(addition))
{
return(current);
}
return(new MultiPointLocus <T>(current.IntersectionPoint, addition.IntersectionPoint));
}
private Locus <T> CombineIntersections(PointLocus <T> current, LineSegmentLocus <T> addition)
{
if (ContainsPoint(addition, current))
{
return(addition);
}
addition.Segments.Add(new Line2D <T>(current.IntersectionPoint, current.IntersectionPoint));
return(addition);
}
private bool ContainsPoint(MultiPointLocus <T> multi, PointLocus <T> point)
{
foreach (Point2D <T> p2 in multi.Points)
{
if (p2.Equals(point.IntersectionPoint))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Determine if the point is contained in any of the segments of the line segment
/// </summary>
/// <param name="lineSegment"></param>
/// <param name="point"></param>
/// <returns>true if the point lands on a line segment</returns>
private bool ContainsPoint(LineSegmentLocus <T> lineSegment, PointLocus <T> point)
{
foreach (Line2D <T> line in lineSegment.Segments)
{
if (line.Contains(point.IntersectionPoint))
{
return(true);
}
}
return(false);
}
private Locus <T> CombineIntersections(LineSegmentLocus <T> current, PointLocus <T> addition)
{
// If the point to be added already exists in one of the line
// segments ignore it
if (ContainsPoint(current, addition))
{
return(current);
}
current.Segments.Add(new Line2D <T>(addition.IntersectionPoint, addition.IntersectionPoint));
return(current);
}
private Locus <T> CombineIntersections(EmptyLocus <T> current, PointLocus <T> addition)
{
return(addition);
}