def test_rcupdate():
rc_sets = [{
'font.family': 'sans-serif',
'font.size': 30,
'figure.subplot.left': .2,
'lines.markersize': 10,
'pgf.rcfonts': False,
'pgf.texsystem': 'xelatex'
}, {
'font.family':
'monospace',
'font.size':
10,
'figure.subplot.left':
.1,
'lines.markersize':
20,
'pgf.rcfonts':
False,
'pgf.texsystem':
'pdflatex',
'pgf.preamble': ('\\usepackage[utf8x]{inputenc}'
'\\usepackage[T1]{fontenc}'
'\\usepackage{sfmath}')
}]
tol = [0, 13.2] if _old_gs_version else [0, 0]
for i, rc_set in enumerate(rc_sets):
with mpl.rc_context(rc_set):
for substring, pkg in [('sfmath', 'sfmath'), ('utf8x', 'ucs')]:
if (substring in mpl.rcParams['pgf.preamble']
and not _has_tex_package(pkg)):
pytest.skip(f'needs {pkg}.sty')
create_figure()
compare_figure(f'pgf_rcupdate{i + 1}.pdf', tol=tol[i])
def test_usetex_packages(pkg):
if not _has_tex_package(pkg):
pytest.skip(f'{pkg} is not available')
mpl.rcParams['text.usetex'] = True
fig = plt.figure()
text = fig.text(0.5, 0.5, "Some text 0123456789")
fig.canvas.draw()
mpl.rcParams['text.latex.preamble'] = (
r'\PassOptionsToPackage{dvipsnames}{xcolor}\usepackage{%s}' % pkg)
fig = plt.figure()
text2 = fig.text(0.5, 0.5, "Some text 0123456789")
fig.canvas.draw()
np.testing.assert_array_equal(text2.get_window_extent(),
text.get_window_extent())
def test_xelatex():
rc_xelatex = {'font.family': 'serif', 'pgf.rcfonts': False}
mpl.rcParams.update(rc_xelatex)
create_figure()
try:
_old_gs_version = \
mpl._get_executable_info('gs').version < parse_version('9.50')
except mpl.ExecutableNotFoundError:
_old_gs_version = True
# test compiling a figure to pdf with pdflatex
@needs_pdflatex
@pytest.mark.skipif(not _has_tex_package('ucs'), reason='needs ucs.sty')
@pytest.mark.backend('pgf')
@image_comparison(['pgf_pdflatex.pdf'],
style='default',
tol=11.7 if _old_gs_version else 0)
def test_pdflatex():
if os.environ.get('APPVEYOR'):
pytest.xfail("pdflatex test does not work on appveyor due to missing "
"LaTeX fonts")
rc_pdflatex = {
'font.family':
'serif',
'pgf.rcfonts':
False,
'pgf.texsystem':
mpl.style.use("mpl20")
mpl.rcParams['font.size'] = fontsize
heights = {}
fig = plt.figure()
for vals in [(1, ), (-1, ), (-1, 1)]:
fig.clf()
for x in vals:
fig.text(.5, .5, f"${x}$", usetex=True)
fig.canvas.draw()
# The following counts the number of non-fully-blank pixel rows.
heights[vals] = ((np.array(fig.canvas.buffer_rgba())[..., 0] !=
255).any(axis=1).sum())
assert len({*heights.values()}) == 1
@pytest.mark.skipif(not _has_tex_package('xcolor'),
reason='xcolor is not available')
def test_usetex_xcolor():
mpl.rcParams['text.usetex'] = True
fig = plt.figure()
text = fig.text(0.5, 0.5, "Some text 0123456789")
fig.canvas.draw()
mpl.rcParams['text.latex.preamble'] = r'\usepackage[dvipsnames]{xcolor}'
fig = plt.figure()
text2 = fig.text(0.5, 0.5, "Some text 0123456789")
fig.canvas.draw()
np.testing.assert_array_equal(text2.get_window_extent(),
text.get_window_extent())