Delete .venv directory
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import numpy as np
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import pytest
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import matplotlib as mpl
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from matplotlib.testing import _has_tex_package
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from matplotlib.testing.decorators import check_figures_equal, image_comparison
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import matplotlib.pyplot as plt
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if not mpl.checkdep_usetex(True):
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pytestmark = pytest.mark.skip('Missing TeX of Ghostscript or dvipng')
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@image_comparison(
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baseline_images=['test_usetex'],
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extensions=['pdf', 'png'],
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style="mpl20")
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def test_usetex():
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mpl.rcParams['text.usetex'] = True
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fig, ax = plt.subplots()
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kwargs = {"verticalalignment": "baseline", "size": 24,
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"bbox": dict(pad=0, edgecolor="k", facecolor="none")}
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ax.text(0.2, 0.7,
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# the \LaTeX macro exercises character sizing and placement,
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# \left[ ... \right\} draw some variable-height characters,
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# \sqrt and \frac draw horizontal rules, \mathrm changes the font
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r'\LaTeX\ $\left[\int\limits_e^{2e}'
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r'\sqrt\frac{\log^3 x}{x}\,\mathrm{d}x \right\}$',
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**kwargs)
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ax.text(0.2, 0.3, "lg", **kwargs)
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ax.text(0.4, 0.3, r"$\frac{1}{2}\pi$", **kwargs)
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ax.text(0.6, 0.3, "$p^{3^A}$", **kwargs)
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ax.text(0.8, 0.3, "$p_{3_2}$", **kwargs)
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for x in {t.get_position()[0] for t in ax.texts}:
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ax.axvline(x)
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for y in {t.get_position()[1] for t in ax.texts}:
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ax.axhline(y)
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ax.set_axis_off()
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@check_figures_equal()
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def test_empty(fig_test, fig_ref):
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mpl.rcParams['text.usetex'] = True
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fig_test.text(.5, .5, "% a comment")
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@check_figures_equal()
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def test_unicode_minus(fig_test, fig_ref):
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mpl.rcParams['text.usetex'] = True
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fig_test.text(.5, .5, "$-$")
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fig_ref.text(.5, .5, "\N{MINUS SIGN}")
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def test_mathdefault():
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plt.rcParams["axes.formatter.use_mathtext"] = True
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fig = plt.figure()
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fig.add_subplot().set_xlim(-1, 1)
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# Check that \mathdefault commands generated by tickers don't cause
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# problems when later switching usetex on.
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mpl.rcParams['text.usetex'] = True
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fig.canvas.draw()
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@pytest.mark.parametrize("fontsize", [8, 10, 12])
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def test_minus_no_descent(fontsize):
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# Test special-casing of minus descent in DviFont._height_depth_of, by
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# checking that overdrawing a 1 and a -1 results in an overall height
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# equivalent to drawing either of them separately.
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mpl.style.use("mpl20")
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mpl.rcParams['font.size'] = fontsize
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heights = {}
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fig = plt.figure()
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for vals in [(1,), (-1,), (-1, 1)]:
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fig.clf()
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for x in vals:
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fig.text(.5, .5, f"${x}$", usetex=True)
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fig.canvas.draw()
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# The following counts the number of non-fully-blank pixel rows.
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heights[vals] = ((np.array(fig.canvas.buffer_rgba())[..., 0] != 255)
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.any(axis=1).sum())
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assert len({*heights.values()}) == 1
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@pytest.mark.skipif(not _has_tex_package('xcolor'),
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reason='xcolor is not available')
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def test_usetex_xcolor():
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mpl.rcParams['text.usetex'] = True
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fig = plt.figure()
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text = fig.text(0.5, 0.5, "Some text 0123456789")
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fig.canvas.draw()
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mpl.rcParams['text.latex.preamble'] = r'\usepackage[dvipsnames]{xcolor}'
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fig = plt.figure()
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text2 = fig.text(0.5, 0.5, "Some text 0123456789")
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fig.canvas.draw()
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np.testing.assert_array_equal(text2.get_window_extent(),
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text.get_window_extent())
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def test_textcomp_full():
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plt.rcParams["text.latex.preamble"] = r"\usepackage[full]{textcomp}"
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fig = plt.figure()
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fig.text(.5, .5, "hello, world", usetex=True)
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fig.canvas.draw()
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