BSplineCurve

General
1

Hi,

I just wanted to ask, how does the BSplineCurve function work?
I tried to set up a Wire to extrude it to 3D with the following code:

test = BSplineCurve([Pnt(0,0,0),Pnt(1,0,0),Pnt(1,0.5,0)], Degree)
seg1 = Segment(Pnt(0,0,0),Pnt(1,0.5,0))
#test2 = Wire([test,seg1])
test2 = test+seg1
#t = Face(test2)
#test3 = t.Extrude(5*Z)
DrawGeo(test2)

It works fine if Degree is equal to 1, but if I take Degree equal to 2 my Spline Curve gets shorter and the endpoints of the Curve are not my prescribed points.
Taking more points or another degree, does not change this behaviour.

Best
Tim

2

Hi Tim,

you have to duplicate initial and end points, according to the degree of the spline

best, Joachim

1 Like
3

or use BezierCurve as in this example.
Joachim

4

I will take a look at it. Thank you. :slight_smile: