public PointF?IntersectAtDistance(LineSegment segmentToCut, float width)
{
// always assuming other.A is the farthest end
var distance = width * (line.IsAboveOrRightOf(segmentToCut.A) ? 1 : -1);
var parallelLine = line.GetParallelLine(distance);
var p = parallelLine.Intersect(segmentToCut.line);
if (p.HasValue)
{
if (LineEquation.IsBetween(line.GetNormalAt(A), p.Value, line.GetNormalAt(B)) &&
segmentToCut.bindingRectangle.Contains(p.Value))
{
return(p);
}
}
List <PointF> points = new List <PointF>();
points.AddRange(segmentToCut.line.Intersect(new CircleEquation(width, A)));
points.AddRange(segmentToCut.line.Intersect(new CircleEquation(width, B)));
return(GetNearestPoint(segmentToCut.A, points));
}
public static bool IsBetween(LineEquation l1, PointF p, LineEquation l2)
{
return(l1.IsAboveOrRightOf(p) ^ l2.IsAboveOrRightOf(p));
}