public bool IntersectCurves()
{
bool flag = false;
if (this.curve1 == null || this.curve2 == null || this.curve1 == this.curve2)
{
return(false);
}
RectangleF rect1 = (RectangleF) new Rectangle();
RectangleF rect2 = (RectangleF) new Rectangle();
this.curveIntersections.Clear();
for (int index1 = 0; index1 < this.curve1.Points.Length - 1; ++index1)
{
rect1 = this.SegmentBoundingRect(rect1, this.curve1.Points[index1], this.curve1.Points[index1 + 1]);
for (int index2 = 0; index2 < this.curve2.Points.Length - 1; ++index2)
{
rect2 = this.SegmentBoundingRect(rect2, this.curve2.Points[index2], this.curve2.Points[index2 + 1]);
rect2.Intersect(rect1);
PointF res;
if (!rect2.IsEmpty && ShapesIntersection.IntersectSegment(out res, this.curve1.Points[index1].Location, this.curve1.Points[index1 + 1].Location, this.curve2.Points[index2].Location, this.curve2.Points[index2 + 1].Location))
{
this.curveIntersections.Add(res);
}
}
}
return(flag);
}
public static bool IntersectSegment(out PointF res, PointF a, PointF b, PointF c, PointF d)
{
ShapesIntersection.Intersect(out res, a, b, c, d);
return((double)res.X >= (double)Math.Min(a.X, b.X) && (double)res.X <= (double)Math.Max(a.X, b.X) && ((double)res.Y >= (double)Math.Min(a.Y, b.Y) && (double)res.Y <= (double)Math.Max(a.Y, b.Y)) && ((double)res.X >= (double)Math.Min(c.X, d.X) && (double)res.X <= (double)Math.Max(c.X, d.X) && ((double)res.Y >= (double)Math.Min(c.Y, d.Y) && (double)res.Y <= (double)Math.Max(c.Y, d.Y))));
}
