FontTools, probably a simple question

MauriceMeilleur

I'd like to use the FontTools methods for finding arc length and finding points along a curve at https://github.com/fonttools/fonttools/blob/main/Lib/fontTools/misc/bezierTools.py#L98. I can import the fontTools module, but I don't seem to be able to use methods like calcCubicArcLength(). I guess I could just pull code out of the repo, but I'd rather use the functions from the module. What am I missing?

frederik

this works...

from fontTools.misc.bezierTools import calcCubicArcLength


pt1 = 100, 100
pt2 = 200, 100
pt3 = 400, 150
pt4 = 400, 400

l = calcCubicArcLength(pt1, pt2, pt3, pt4)

path = BezierPath()
path.moveTo(pt1)
path.curveTo(pt2, pt3, pt4)

text(str(l), pt3)

fill(None)
stroke(0)
drawPath(path)

MauriceMeilleur

@frederik Oh, I see—I just needed to import (from) the right submodule. Thanks!