public void addvexto(PolyLine2D pl, Point2D vertex, double bulge)
{
pl.Add(vertex, bulge);
}
public void addvexto(PolyLine2D pl, Point2D vertex)
{
pl.Add(vertex, 0);
}
public void addvexto(PolyLine2D pl, Point2D vertex, double bulge, double startWidth, double endWidth)
{
pl.Add(vertex, bulge, startWidth, endWidth);
}