/// <summary>
/// Returns true if any part of this wedge overlaps any part of wedge <paramref name='b'/>.
/// </summary>
public bool Overlaps(WWedge b)
{
WWedge a = this;
WPoint[] intersections = a.Circle.GetIntersectionPoints(b.Circle);
if (intersections == null)
{
if (!a.Circle.ContainsOrIsContained(b.Circle))
{
return(false);
}
}
//line edge overlaps line edge
foreach (WLineSegment lineA in this.LineEdges)
{
foreach (WLineSegment lineB in b.LineEdges)
{
if (lineA.Overlaps(lineB))
{
return(true);
}
}
}
//arc overlaps line edge
foreach (WLineSegment lineA in this.LineEdges)
{
if (b.ArcOverlaps(lineA))
{
return(true);
}
}
foreach (WLineSegment lineB in b.LineEdges)
{
if (a.ArcOverlaps(lineB))
{
return(true);
}
}
//arc overlaps arc
if (a.ArcOverlapsArc(b))
{
return(true);
}
//one wedge entirely contains the other (all three points from one wedge inside the other)
// there are cases where all three points are inside, but arc protrudes outside - not important here since that still counts as overlapping
if (Contains(b.Circle.Center))
{
if (Contains(b.StartPoint))
{
if (Contains(b.EndPoint))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Returns true if this circle entirely contains wedge <paramref name='b'/>.
/// </summary>
public bool Contains(WWedge b)
{
foreach (WPoint point in b.FourPoints)
{
if (!Contains(point))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Returns true if this arc overlaps any part of <paramref name='b'/>'s arc.
/// </summary>
public bool ArcOverlapsArc(WWedge b)
{
WWedge a = this;
WPoint[] fullCircleIntersections = a.Circle.GetIntersectionPoints(b.Circle);
if (fullCircleIntersections == null)
{
return(false);
}
foreach (WPoint point in fullCircleIntersections)
{
if (a.Circle.Center == point || a.Degrees.Overlaps(a.Circle.DegreesAtPoint(point)))
{
if (b.Circle.Center == point || b.Degrees.Overlaps(b.Circle.DegreesAtPoint(point)))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Returns true if any part of this wedge overlaps any part of circle <paramref name='b'/>.
/// </summary>
public bool Overlaps(WCircle b)
{
WWedge a = this;
WPoint[] intersections = a.Circle.GetIntersectionPoints(b);
if (intersections == null)
{
if (!a.Circle.ContainsOrIsContained(b))
{
return(false);
}
}
//line edge overlaps circle
foreach (WLineSegment lineA in this.LineEdges)
{
if (b.Overlaps(lineA))
{
return(true);
}
}
//arc overlaps circle
if (a.ArcOverlapsArc(new WWedge(b, 0, WCircle.DEGREES_IN_CIRCLE)))
{
return(true);
}
//wedge entirely contains circle or circle entirely contains wedge
if (a.Contains(b))
{
return(true);
}
if (b.Contains(a))
{
return(true);
}
return(false);
}
