public ArcCut( CurveType type, float startAngle, float endAngle, PointF arcPoint1, PointF arcPoint2, PointF centerOfArc,
bool UseArcLine = true, ICurve AttachedCurve = null) : this()
{
Option = type;
Initialized = !arcPoint1.Equals(arcPoint2);
Center = centerOfArc;
if (!Initialized)
{
Option = Option.Exclude(CurveType.Arc, CurveType.Pie).Include(CurveType.Full);
return;
}
if (Option.IsPie())
Option = Option.Exclude(CurveType.Arc);
else
Option = Option.Exclude(CurveType.Pie);
if (Option.IsArc())
{
StartAngle = startAngle;
EndAngle = endAngle;
}
else
{
StartAngle = arcPoint1.GetAngle(centerOfArc);
EndAngle = arcPoint2.GetAngle(centerOfArc);
}
if (!UseArcLine)
{
if (EndAngle < StartAngle)
Option = Option.Include(CurveType.NegativeMotion);
else
Option = Option.Exclude(CurveType.NegativeMotion);
}
NegativeMotion = Option.NegativeMotion();
ArcLine = Factory.newLine(arcPoint1, arcPoint2);
Line1 = Factory.newLine(arcPoint1, centerOfArc);
Line2 = Factory.newLine(arcPoint2, centerOfArc);
var l = ArcLine;
/*If arc line is perfect then cutting ellipse using ArcLine is faster than using Math.Atan2
* However, it needs to be thoroughly tested as it is knownn to be fragile.*/
if (UseArcLine)
Contains = CheckPixel;
else
Contains = CheckPixel1;
Extra = GetClosingLines(AttachedCurve);
}
