Timers for a few ways to rotate a 2d point around another point in Python

rotate_2d_point_timers.py

"""
Lyle Scott, III  // [email protected]

Python execution timers for https://gist.github.com/LyleScott/e36e08bfb23b1f87af68c9051f985302
"""
from __future__ import print_function
import timeit

# Setup steps that aren't timed.
setup = """
import math
import numpy as np

theta = math.radians(90)
point = (5, -11)
"""

test = """
def rotate_via_numpy(xy, radians):
    x, y = xy
    c, s = np.cos(radians), np.sin(radians)
    j = np.matrix([[c, s], [-s, c]])
    m = np.dot(j, [x, y])

    return float(m.T[0]), float(m.T[1])
rotate_via_numpy(point, theta)
"""
print(timeit.timeit(setup=setup, stmt=test, number=1000000))


test = """
def rotate_origin_only(xy, radians):
    x, y = xy
    xx = x * math.cos(radians) + y * math.sin(radians)
    yy = -x * math.sin(radians) + y * math.cos(radians)

    return xx, yy
rotate_origin_only(point, theta)
"""
print(timeit.timeit(setup=setup, stmt=test, number=1000000))


test = """
def rotate_around_point_lowperf(point, radians, origin=(0, 0)):
    x, y = point
    ox, oy = origin

    qx = ox + math.cos(radians) * (x - ox) + math.sin(radians) * (y - oy)
    qy = oy + -math.sin(radians) * (x - ox) + math.cos(radians) * (y - oy)

    return qx, qy
rotate_around_point_lowperf(point, theta)
"""
print(timeit.timeit(setup=setup, stmt=test, number=1000000))


test = """
def rotate_around_point_highperf(xy, radians, origin=(0, 0)):
    x, y = xy
    offset_x, offset_y = origin
    adjusted_x = (x - offset_x)
    adjusted_y = (y - offset_y)
    cos_rad = math.cos(radians)
    sin_rad = math.sin(radians)
    qx = offset_x + cos_rad * adjusted_x + sin_rad * adjusted_y
    qy = offset_y + -sin_rad * adjusted_x + cos_rad * adjusted_y

    return qx, qy
rotate_around_point_highperf(point, theta)
"""
print(timeit.timeit(setup=setup, stmt=test, number=1000000))

"""
Results:
26.5627160072
0.854506015778
1.06204891205
0.86154294014
"""