public bool Cut(HullLineLine line, ref double tMin, ref double tMax)
{
// Handle start point of endPart
Pnt lS = line.EndPart.Ps;
Lin2D s = line.Lin.GetParallel(lS);
bool intersects = CutLineThis(s.Ps, s.L, ref tMin, ref tMax);
// Handle end point of endPart
Pnt lE = line.EndPart.Pe;
Lin2D e = line.Lin.GetParallel(lE);
intersects |= CutLineThis(e.Ps, e.L, ref tMin, ref tMax);
if (Angle.HasValue)
{
double r = _radius;
// Handle start point of arc
double angS = StartDirection;
Pnt aS = new Pnt2D(r * Math.Cos(angS), r * Math.Sin(angS)) + _center - lS;
Lin2D eS = line.EndPart.GetParallel(aS);
intersects |= LineHullPart.CutLin(eS, e, ref tMin, ref tMax);
// Handle end point of arc
double angE = StartDirection + Angle.Value;
Pnt aE = new Pnt2D(r * Math.Cos(angE), r * Math.Sin(angE)) + _center - lS;
Lin2D eE = line.EndPart.GetParallel(aE);
intersects |= LineHullPart.CutLin(eE, e, ref tMin, ref tMax);
}
// Handle tangents
Pnt eNormal = line.EndPart.LNormal;
double dir = Angle.HasValue
? Math.Atan2(eNormal.Y, eNormal.X)
: double.NaN;
if (!Angle.HasValue || IsInArcAngle(dir))
{
Lin2D eT0 = line.EndPart.GetParallel(_center + _radius * eNormal - lS);
intersects |= LineHullPart.CutLin(eT0, e, ref tMin, ref tMax);
}
if (!Angle.HasValue || IsInArcAngle(dir + Math.PI))
{
Lin2D eT1 = line.EndPart.GetParallel(_center - _radius * eNormal - lS);
intersects |= LineHullPart.CutLin(eT1, e, ref tMin, ref tMax);
}
return(intersects);
}
public bool Cut(HullLineLine line, ref double tMin, ref double tMax)
{
Lin2D s = line.Lin.GetParallel(line.EndPart.Ps);
bool intersects = CutLin(_lin, s, ref tMin, ref tMax);
Lin2D e = line.Lin.GetParallel(line.EndPart.Pe);
intersects |= CutLin(_lin, e, ref tMin, ref tMax);
var thisAtStart = new Lin2D(_lin.Ps, _lin.Ps + line.EndPart.L);
intersects |= CutLin(thisAtStart, e, ref tMin, ref tMax);
var thisAtEnd = new Lin2D(_lin.Pe, _lin.Pe + line.EndPart.L);
intersects |= CutLin(thisAtEnd, e, ref tMin, ref tMax);
return(intersects);
}