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[bezier] Internal variable rename

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This commit is contained in:
Behdad Esfahbod 2023-02-13 14:55:23 -07:00
parent 86c67a17b2
commit cce99f00f7
1 changed files with 10 additions and 10 deletions
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20
Lib/fontTools/misc/bezierTools.py
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@ -932,16 +932,16 @@ def cubicPointAtT(pt1, pt2, pt3, pt4, t):
A 2D tuple with the coordinates of the point.
"""
t2 = t * t
t_1 = 1 - t
t_1_2 = t_1 * t_1
_1_t = 1 - t
_1_t_2 = _1_t * _1_t
x = (
t_1_2 * t_1 * pt1[0]
+ 3 * (t_1_2 * t * pt2[0] + t_1 * t2 * pt3[0])
_1_t_2 * _1_t * pt1[0]
+ 3 * (_1_t_2 * t * pt2[0] + _1_t * t2 * pt3[0])
+ t2 * t * pt4[0]
)
y = (
t_1_2 * t_1 * pt1[1]
+ 3 * (t_1_2 * t * pt2[1] + t_1 * t2 * pt3[1])
_1_t_2 * _1_t * pt1[1]
+ 3 * (_1_t_2 * t * pt2[1] + _1_t * t2 * pt3[1])
+ t2 * t * pt4[1]
)
return (x, y)
@ -955,7 +955,7 @@ def cubicPointAtT(pt1, pt2, pt3, pt4, t):
pt3=cython.complex,
pt4=cython.complex,
)
@cython.locals(t2=cython.double, t_1=cython.double, t_1_2=cython.double)
@cython.locals(t2=cython.double, _1_t=cython.double, _1_t_2=cython.double)
def cubicPointAtTC(pt1, pt2, pt3, pt4, t):
"""Finds the point at time `t` on a cubic curve.
@ -967,9 +967,9 @@ def cubicPointAtTC(pt1, pt2, pt3, pt4, t):
A complex number with the coordinates of the point.
"""
t2 = t * t
t_1 = 1 - t
t_1_2 = t_1 * t_1
return t_1_2 * t_1 * pt1 + 3 * (t_1_2 * t * pt2 + t_1 * t2 * pt3) + t2 * t * pt4
_1_t = 1 - t
_1_t_2 = _1_t * _1_t
return _1_t_2 * _1_t * pt1 + 3 * (_1_t_2 * t * pt2 + _1_t * t2 * pt3) + t2 * t * pt4
def segmentPointAtT(seg, t):