1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
import unittest
from beziers.quadraticbezier import QuadraticBezier
from beziers.point import Point
class QuadraticMethods(unittest.TestCase):
def test_split(self):
# console.log((new Bezier(150,40,80,30,105,150)).split(0.2))
q = QuadraticBezier(
Point(150,40), Point(80,30), Point(105,150))
left, right = q.splitAtTime(0.2)
self.assertEqual(left[1],Point(136,38))
self.assertEqual(right[1],Point(85,54))
def test_extremes(self):
q = QuadraticBezier(
Point(70,250), Point(13,187), Point(209,58))
r = q.findExtremes()
self.assertEqual(len(r), 1)
self.assertAlmostEqual(r[0], 0.22529644268774704)
def test_extremes2(self):
# console.log((new Bezier(127,242,71,150,210,60)).extrema())
q = QuadraticBezier(
Point(127,242), Point(71,150), Point(210,60))
r = q.findExtremes()
self.assertEqual(len(r), 1)
self.assertAlmostEqual(r[0], 0.28717948717948716)
def test_extremes3(self):
# console.log((new Bezier(127,242,27,5,210,60)).extrema())
q = QuadraticBezier(
Point(127,242), Point(27,5), Point(210,60))
r = q.findExtremes()
self.assertEqual(len(r), 2)
self.assertAlmostEqual(r[0], 0.35335689045936397)
self.assertAlmostEqual(r[1], 0.8116438356164384)
# from beziers.path import BezierPath
# import matplotlib.pyplot as plt
# path = BezierPath.fromSegments([q])
# fig, ax = plt.subplots()
# path.closed = False
# path.addExtremes()
# path.plot(ax)
# plt.show()
def test_extremes4(self):
q = QuadraticBezier(
Point(664,1075),
Point(732,1167),
Point(800,1239)
)
r = q.findExtremes()
self.assertEqual(len(r), 0)
|
