private List <Vector2> calculateSubpath(List <Vector2> subControlPoints)
{
switch (CurveType)
{
case CurveTypes.Linear:
return(subControlPoints);
case CurveTypes.PerfectCurve:
// If we have a different amount than 3 control points, use bezier for perfect curves.
if (ControlPoints.Count != 3)
{
return(new BezierApproximator(subControlPoints).CreateBezier());
}
else
{
Debug.Assert(subControlPoints.Count == 3);
// Here we have exactly 3 control points. Attempt to fit a circular arc.
List <Vector2> subpath = new CircularArcApproximator(subControlPoints[0], subControlPoints[1], subControlPoints[2]).CreateArc();
if (subpath.Count == 0)
{
// For some reason a circular arc could not be fit to the 3 given points. Fall back
// to a numerically stable bezier approximation.
subpath = new BezierApproximator(subControlPoints).CreateBezier();
}
return(subpath);
}
default:
return(new BezierApproximator(subControlPoints).CreateBezier());
}
}
private List<Vector2> calculateSubpath(List<Vector2> subControlPoints)
{
switch (CurveType)
{
case CurveTypes.Linear:
return subControlPoints;
case CurveTypes.PerfectCurve:
// If we have a different amount than 3 control points, use bezier for perfect curves.
if (ControlPoints.Count != 3)
return new BezierApproximator(subControlPoints).CreateBezier();
else
{
Debug.Assert(subControlPoints.Count == 3);
// Here we have exactly 3 control points. Attempt to fit a circular arc.
List<Vector2> subpath = new CircularArcApproximator(subControlPoints[0], subControlPoints[1], subControlPoints[2]).CreateArc();
if (subpath.Count == 0)
// For some reason a circular arc could not be fit to the 3 given points. Fall back
// to a numerically stable bezier approximation.
subpath = new BezierApproximator(subControlPoints).CreateBezier();
return subpath;
}
default:
return new BezierApproximator(subControlPoints).CreateBezier();
}
}