FitVector computeRightTangent(QPolygonF &points,int end) { FitVector tHat1(points[end-1],points[end]); tHat1.normalize(); return tHat1; }
FitVector ComputeLeftTangent(const QList<QPointF> &points,int end){ FitVector tHat1( points.at(end+1), points.at(end) ); tHat1.normalize(); return tHat1; }
FitVector computeLeftTangent(QPolygonF &points, int end) { FitVector tHat1((points[end+1]), (points[end])); tHat1.normalize(); return tHat1; }