/usr/lib/python3/dist-packages/matplotlib/tests/test_patheffects.py is in python3-matplotlib 1.5.1-1ubuntu1.
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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 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
from matplotlib.externals import six
import numpy as np
from matplotlib.testing.decorators import (image_comparison, cleanup,
knownfailureif)
import matplotlib.pyplot as plt
import matplotlib.patheffects as path_effects
try:
# mock in python 3.3+
from unittest import mock
except ImportError:
import mock
from nose.tools import assert_equal
@image_comparison(baseline_images=['patheffect1'], remove_text=True)
def test_patheffect1():
ax1 = plt.subplot(111)
ax1.imshow([[1, 2], [2, 3]])
txt = ax1.annotate("test", (1., 1.), (0., 0),
arrowprops=dict(arrowstyle="->",
connectionstyle="angle3", lw=2),
size=20, ha="center",
path_effects=[path_effects.withStroke(linewidth=3,
foreground="w")])
txt.arrow_patch.set_path_effects([path_effects.Stroke(linewidth=5,
foreground="w"),
path_effects.Normal()])
ax1.grid(True, linestyle="-")
pe = [path_effects.withStroke(linewidth=3, foreground="w")]
for l in ax1.get_xgridlines() + ax1.get_ygridlines():
l.set_path_effects(pe)
@image_comparison(baseline_images=['patheffect2'], remove_text=True)
def test_patheffect2():
ax2 = plt.subplot(111)
arr = np.arange(25).reshape((5, 5))
ax2.imshow(arr)
cntr = ax2.contour(arr, colors="k")
plt.setp(cntr.collections,
path_effects=[path_effects.withStroke(linewidth=3,
foreground="w")])
clbls = ax2.clabel(cntr, fmt="%2.0f", use_clabeltext=True)
plt.setp(clbls,
path_effects=[path_effects.withStroke(linewidth=3,
foreground="w")])
@image_comparison(baseline_images=['patheffect3'])
def test_patheffect3():
p1, = plt.plot([1, 3, 5, 4, 3], 'o-b', lw=4)
p1.set_path_effects([path_effects.SimpleLineShadow(),
path_effects.Normal()])
plt.title(r'testing$^{123}$',
path_effects=[path_effects.withStroke(linewidth=1, foreground="r")])
leg = plt.legend([p1], [r'Line 1$^2$'], fancybox=True, loc=2)
leg.legendPatch.set_path_effects([path_effects.withSimplePatchShadow()])
text = plt.text(2, 3, 'Drop test', color='white',
bbox={'boxstyle': 'circle,pad=0.1', 'color': 'red'})
pe = [path_effects.Stroke(linewidth=3.75, foreground='k'),
path_effects.withSimplePatchShadow((6, -3), shadow_rgbFace='blue')]
text.set_path_effects(pe)
text.get_bbox_patch().set_path_effects(pe)
pe = [path_effects.PathPatchEffect(offset=(4, -4), hatch='xxxx',
facecolor='gray'),
path_effects.PathPatchEffect(edgecolor='white', facecolor='black',
lw=1.1)]
t = plt.gcf().text(0.02, 0.1, 'Hatch shadow', fontsize=75, weight=1000,
va='center')
t.set_path_effects(pe)
@cleanup
@knownfailureif(True)
def test_PathEffect_points_to_pixels():
fig = plt.figure(dpi=150)
p1, = plt.plot(range(10))
p1.set_path_effects([path_effects.SimpleLineShadow(),
path_effects.Normal()])
renderer = fig.canvas.get_renderer()
pe_renderer = path_effects.SimpleLineShadow().get_proxy_renderer(renderer)
assert isinstance(pe_renderer, path_effects.PathEffectRenderer), (
'Expected a PathEffectRendere instance, got '
'a {0} instance.'.format(type(pe_renderer)))
# Confirm that using a path effects renderer maintains point sizes
# appropriately. Otherwise rendered font would be the wrong size.
assert_equal(renderer.points_to_pixels(15),
pe_renderer.points_to_pixels(15))
def test_SimplePatchShadow_offset():
pe = path_effects.SimplePatchShadow(offset=(4, 5))
assert_equal(pe._offset, (4, 5))
@image_comparison(baseline_images=['collection'])
def test_collection():
x, y = np.meshgrid(np.linspace(0, 10, 150), np.linspace(-5, 5, 100))
data = np.sin(x) + np.cos(y)
cs = plt.contour(data)
pe = [path_effects.PathPatchEffect(edgecolor='black', facecolor='none',
linewidth=12),
path_effects.Stroke(linewidth=5)]
for collection in cs.collections:
collection.set_path_effects(pe)
for text in plt.clabel(cs, colors='white'):
text.set_path_effects([path_effects.withStroke(foreground='k',
linewidth=3)])
text.set_bbox({'boxstyle': 'sawtooth', 'facecolor': 'none',
'edgecolor': 'blue'})
if __name__ == '__main__':
import nose
nose.runmodule(argv=['-s', '--with-doctest'], exit=False)
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