public bool DoesLocusIntersect(Loci pobjTarget)
{
PointF point = new PointF(0, 0);
switch (this.Type)
{
case LociType.Line:
switch (pobjTarget.Type)
{
case LociType.Line:
return(IntersectionHelpers.DoLinesIntersect(this.Line, pobjTarget.Line, ref point));
case LociType.Point:
return(IntersectionHelpers.DoLinesIntersect(this.Line, pobjTarget.CreateLineFromPoint(), ref point));
case LociType.Rectangle:
return(IntersectionHelpers.DoesLineIntersectRectangle(pobjTarget.Rectangle, this.Line));
}
break;
case LociType.Point:
switch (pobjTarget.Type)
{
case LociType.Line:
return(IntersectionHelpers.DoLinesIntersect(pobjTarget.Line, this.CreateLineFromPoint(), ref point));
case LociType.Point:
return(this.Point.Equals(pobjTarget.Point));
case LociType.Rectangle:
return(pobjTarget.Rectangle.Contains(this.Point));
}
break;
case LociType.Rectangle:
switch (pobjTarget.Type)
{
case LociType.Line:
return(IntersectionHelpers.DoesLineIntersectRectangle(this.Rectangle, pobjTarget.Line));
case LociType.Point:
return(this.Rectangle.Contains(pobjTarget.Point));
case LociType.Rectangle:
return(pobjTarget.Rectangle.IntersectsWith(this.Rectangle));
}
break;
}
throw new NotSupportedException();
}
/// <returns>Returns the loci which describes the intersection. WARNING: Where points are concerned it is assumed the point does intersect so the point simply gets returned. This is to prevent multiple calls to DoesLocusIntersect.</returns>
public Loci GetLocusIntersection(Loci pobjTarget)
{
switch (this.Type)
{
case LociType.Line:
switch (pobjTarget.Type)
{
case LociType.Line:
PointF objReturn = PointF.Empty;
IntersectionHelpers.DoLinesIntersect(this.Line, pobjTarget.Line, ref objReturn);
return(new Loci(objReturn));
case LociType.Point:
// Need to change this to return New Loci() if not intersecting.
return(new Loci(pobjTarget.Point));
case LociType.Rectangle:
Line objReturn2 = null;
if (IntersectionHelpers.DoesLineIntersectRectangle(pobjTarget.Rectangle, this.Line, ref objReturn2))
{
return(new Loci(objReturn2));
}
else
{
return(new Loci());
}
}
break;
case LociType.Point:
switch (pobjTarget.Type)
{
case LociType.Line:
return(new Loci(this.Point));
case LociType.Point:
return(new Loci(this.Point));
case LociType.Rectangle:
return(new Loci(this.Point));
}
break;
case LociType.Rectangle:
switch (pobjTarget.Type)
{
case LociType.Line:
Line objReturn = null;
if (IntersectionHelpers.DoesLineIntersectRectangle(this.Rectangle, pobjTarget.Line, ref objReturn))
{
return(new Loci(objReturn));
}
else
{
return(new Loci());
}
case LociType.Point:
return(new Loci(pobjTarget.Point));
case LociType.Rectangle:
RectangleF objRectangle = new RectangleF(pobjTarget.Rectangle.Location, pobjTarget.Rectangle.Size);
objRectangle.Intersect(this.Rectangle);
return(new Loci(objRectangle));
}
break;
}
throw new NotSupportedException();
}