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use math.hypot() as per review

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https://github.com/fonttools/fonttools/pull/2148#discussion_r557596711
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Cosimo Lupo 2021-01-14 18:22:57 +00:00
parent db14e6375e
commit 7f0788ca25
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1 changed files with 3 additions and 7 deletions
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10
Lib/fontTools/colorLib/geometry.py
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@ -1,6 +1,6 @@
"""Helpers for manipulating 2D points and vectors in COLR table."""
from math import copysign, cos, sqrt, pi
from math import copysign, cos, hypot, pi
from fontTools.misc.fixedTools import otRound
@ -8,12 +8,8 @@ def _vector_between_points(a, b):
return (b[0] - a[0], b[1] - a[1])
def _vector_length(vec):
return sqrt(vec[0] * vec[0] + vec[1] * vec[1])
def _distance_between_points(a, b):
return _vector_length(_vector_between_points(a, b))
return hypot(*_vector_between_points(a, b))
def _round_point(pt):
@ -25,7 +21,7 @@ def _round_circle(centre, radius):
def _unit_vector(vec):
length = _vector_length(vec)
length = hypot(*vec)
if length == 0:
return None
return (vec[0] / length, vec[1] / length)