public Polyline Poly2dTiPolyline(Entity entity, double width)
{
Point3dCollection point3dCollection = new Point3dCollection();
if (entity is Polyline2d)
{
Polyline2d polyline2d = (Polyline2d)entity;
polyline2d.GetStretchPoints(point3dCollection);
}
else if (entity is Line)
{
Line line = (Line)entity;
line.GetStretchPoints(point3dCollection);
}
return(this.Poly2dTiPolyline(this.Point3dCollectionTo2d(point3dCollection), width));
}