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import numpy as np
from matplotlib.testing.decorators import image_comparison
import matplotlib.pyplot as plt
@image_comparison(baseline_images=['legend_auto1'], tol=1.5e-3, remove_text=True)
def test_legend_auto1():
'Test automatic legend placement'
fig = plt.figure()
ax = fig.add_subplot(111)
x = np.arange(100)
ax.plot(x, 50 - x, 'o', label='y=1')
ax.plot(x, x - 50, 'o', label='y=-1')
ax.legend(loc=0)
@image_comparison(baseline_images=['legend_auto2'], remove_text=True)
def test_legend_auto2():
'Test automatic legend placement'
fig = plt.figure()
ax = fig.add_subplot(111)
x = np.arange(100)
b1 = ax.bar(x, x, color='m')
b2 = ax.bar(x, x[::-1], color='g')
ax.legend([b1[0], b2[0]], ['up', 'down'], loc=0)
@image_comparison(baseline_images=['legend_auto3'])
def test_legend_auto3():
'Test automatic legend placement'
fig = plt.figure()
ax = fig.add_subplot(111)
x = [0.9, 0.1, 0.1, 0.9, 0.9, 0.5]
y = [0.95, 0.95, 0.05, 0.05, 0.5, 0.5]
ax.plot(x, y, 'o-', label='line')
ax.set_xlim(0.0, 1.0)
ax.set_ylim(0.0, 1.0)
ax.legend(loc=0)
@image_comparison(baseline_images=['legend_various_labels'], remove_text=True)
def test_various_labels():
# tests all sorts of label types
fig = plt.figure()
ax = fig.add_subplot(121)
ax.plot(range(4), 'o', label=1)
ax.plot(np.linspace(4, 4.1), 'o', label=u'D\xe9velopp\xe9s')
ax.plot(range(4, 1, -1), 'o', label='__nolegend__')
ax.legend(numpoints=1, loc=0)
@image_comparison(baseline_images=['fancy'], remove_text=True)
def test_fancy():
# using subplot triggers some offsetbox functionality untested elsewhere
plt.subplot(121)
plt.scatter(range(10), range(10, 0, -1), label='XX\nXX')
plt.plot([5] * 10, 'o--', label='XX')
plt.errorbar(range(10), range(10), xerr=0.5, yerr=0.5, label='XX')
plt.legend(loc="center left", bbox_to_anchor=[1.0, 0.5],
ncol=2, shadow=True, title="My legend", numpoints=1)
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