File size: 5,660 Bytes
babc3da |
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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 |
import matplotlib as mpl
import matplotlib.pyplot as plt
import numpy as np
import pytest
from cycler import cycler
def test_colorcycle_basic():
fig, ax = plt.subplots()
ax.set_prop_cycle(cycler('color', ['r', 'g', 'y']))
for _ in range(4):
ax.plot(range(10), range(10))
assert [l.get_color() for l in ax.lines] == ['r', 'g', 'y', 'r']
def test_marker_cycle():
fig, ax = plt.subplots()
ax.set_prop_cycle(cycler('c', ['r', 'g', 'y']) +
cycler('marker', ['.', '*', 'x']))
for _ in range(4):
ax.plot(range(10), range(10))
assert [l.get_color() for l in ax.lines] == ['r', 'g', 'y', 'r']
assert [l.get_marker() for l in ax.lines] == ['.', '*', 'x', '.']
def test_marker_cycle_kwargs_arrays_iterators():
fig, ax = plt.subplots()
ax.set_prop_cycle(c=np.array(['r', 'g', 'y']),
marker=iter(['.', '*', 'x']))
for _ in range(4):
ax.plot(range(10), range(10))
assert [l.get_color() for l in ax.lines] == ['r', 'g', 'y', 'r']
assert [l.get_marker() for l in ax.lines] == ['.', '*', 'x', '.']
def test_linestylecycle_basic():
fig, ax = plt.subplots()
ax.set_prop_cycle(cycler('ls', ['-', '--', ':']))
for _ in range(4):
ax.plot(range(10), range(10))
assert [l.get_linestyle() for l in ax.lines] == ['-', '--', ':', '-']
def test_fillcycle_basic():
fig, ax = plt.subplots()
ax.set_prop_cycle(cycler('c', ['r', 'g', 'y']) +
cycler('hatch', ['xx', 'O', '|-']) +
cycler('linestyle', ['-', '--', ':']))
for _ in range(4):
ax.fill(range(10), range(10))
assert ([p.get_facecolor() for p in ax.patches]
== [mpl.colors.to_rgba(c) for c in ['r', 'g', 'y', 'r']])
assert [p.get_hatch() for p in ax.patches] == ['xx', 'O', '|-', 'xx']
assert [p.get_linestyle() for p in ax.patches] == ['-', '--', ':', '-']
def test_fillcycle_ignore():
fig, ax = plt.subplots()
ax.set_prop_cycle(cycler('color', ['r', 'g', 'y']) +
cycler('hatch', ['xx', 'O', '|-']) +
cycler('marker', ['.', '*', 'D']))
t = range(10)
# Should not advance the cycler, even though there is an
# unspecified property in the cycler "marker".
# "marker" is not a Polygon property, and should be ignored.
ax.fill(t, t, 'r', hatch='xx')
# Allow the cycler to advance, but specify some properties
ax.fill(t, t, hatch='O')
ax.fill(t, t)
ax.fill(t, t)
assert ([p.get_facecolor() for p in ax.patches]
== [mpl.colors.to_rgba(c) for c in ['r', 'r', 'g', 'y']])
assert [p.get_hatch() for p in ax.patches] == ['xx', 'O', 'O', '|-']
def test_property_collision_plot():
fig, ax = plt.subplots()
ax.set_prop_cycle('linewidth', [2, 4])
t = range(10)
for c in range(1, 4):
ax.plot(t, t, lw=0.1)
ax.plot(t, t)
ax.plot(t, t)
assert [l.get_linewidth() for l in ax.lines] == [0.1, 0.1, 0.1, 2, 4]
def test_property_collision_fill():
fig, ax = plt.subplots()
ax.set_prop_cycle(linewidth=[2, 3, 4, 5, 6], facecolor='bgcmy')
t = range(10)
for c in range(1, 4):
ax.fill(t, t, lw=0.1)
ax.fill(t, t)
ax.fill(t, t)
assert ([p.get_facecolor() for p in ax.patches]
== [mpl.colors.to_rgba(c) for c in 'bgcmy'])
assert [p.get_linewidth() for p in ax.patches] == [0.1, 0.1, 0.1, 5, 6]
def test_valid_input_forms():
fig, ax = plt.subplots()
# These should not raise an error.
ax.set_prop_cycle(None)
ax.set_prop_cycle(cycler('linewidth', [1, 2]))
ax.set_prop_cycle('color', 'rgywkbcm')
ax.set_prop_cycle('lw', (1, 2))
ax.set_prop_cycle('linewidth', [1, 2])
ax.set_prop_cycle('linewidth', iter([1, 2]))
ax.set_prop_cycle('linewidth', np.array([1, 2]))
ax.set_prop_cycle('color', np.array([[1, 0, 0],
[0, 1, 0],
[0, 0, 1]]))
ax.set_prop_cycle('dashes', [[], [13, 2], [8, 3, 1, 3]])
ax.set_prop_cycle(lw=[1, 2], color=['k', 'w'], ls=['-', '--'])
ax.set_prop_cycle(lw=np.array([1, 2]),
color=np.array(['k', 'w']),
ls=np.array(['-', '--']))
def test_cycle_reset():
fig, ax = plt.subplots()
# Can't really test a reset because only a cycle object is stored
# but we can test the first item of the cycle.
prop = next(ax._get_lines.prop_cycler)
ax.set_prop_cycle(linewidth=[10, 9, 4])
assert prop != next(ax._get_lines.prop_cycler)
ax.set_prop_cycle(None)
got = next(ax._get_lines.prop_cycler)
assert prop == got
def test_invalid_input_forms():
fig, ax = plt.subplots()
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle(1)
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle([1, 2])
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle('color', 'fish')
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle('linewidth', 1)
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle('linewidth', {1, 2})
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle(linewidth=1, color='r')
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle('foobar', [1, 2])
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle(foobar=[1, 2])
with pytest.raises((TypeError, ValueError)):
ax.set_prop_cycle(cycler(foobar=[1, 2]))
with pytest.raises(ValueError):
ax.set_prop_cycle(cycler(color='rgb', c='cmy'))
|