Bezier - insufficient precision

First of all, thank you for NodeBox, it is such a wonderful toy.
I needed a drawing tool that could draw a 1cm line and then print it exactly 1 cm. I used Pyhton + Latex before, but I found that Nodebox is much better. Bezier tools are wonderful.
But it seems I still have to write bezier tools myself, because those from "bezier" library have insufficient precision when calculationg length. Here is an example.

bezier = ximport("bezier")
nofill()
stroke(0)
p1 = Point(100, 0)
p2 = Point(100, 200)
p3 = Point(100, 2010)

for p in [p1, p2, p3]:
oval(p.x-2, p.y-2, 4, 4)

autoclosepath(False)
path = bezier.findpath([p1, p2, p3])
drawpath(path)
L = bezier.length(path)
print(L/cm, 2010/cm)


Results in : (77.134743266364453, 70.908225001322919)

Hello Anastasia,
If you can help making NodeBox better, your help is more than appreciated by making this open source application better,

thanks in advance,

Lucas

Why would you use findpath() to draw a straight line?

Tom De Smedt,

I use it for this example. The length of this line is obviously 2010/cm, but bezier.length shows different result.