def test_save_animation_smoketest(tmpdir, writer, extension):
try:
# for ImageMagick the rcparams must be patched to account for
# 'convert' being a built in MS tool, not the imagemagick
# tool.
writer._init_from_registry()
except AttributeError:
pass
if not animation.writers.is_available(writer):
skip("writer '%s' not available on this system" % writer)
fig, ax = plt.subplots()
line, = ax.plot([], [])
ax.set_xlim(0, 10)
ax.set_ylim(-1, 1)
def init():
line.set_data([], [])
return line,
def animate(i):
x = np.linspace(0, 10, 100)
y = np.sin(x + i)
line.set_data(x, y)
return line,
# Use temporary directory for the file-based writers, which produce a file
# per frame with known names.
with tmpdir.as_cwd():
anim = animation.FuncAnimation(fig, animate, init_func=init, frames=5)
try:
anim.save('movie.' + extension, fps=30, writer=writer, bitrate=500)
except UnicodeDecodeError:
xfail("There can be errors in the numpy import stack, "
"see issues #1891 and #2679")
def test_pdflatex():
import os
if os.environ.get('APPVEYOR', False):
from matplotlib.testing import xfail
xfail("pdflatex test does not work on appveyor due "
"to missing latex fonts")
if not check_for('pdflatex'):
raise SkipTest('pdflatex + pgf is required')
rc_pdflatex = {'font.family': 'serif',
'pgf.rcfonts': False,
'pgf.texsystem': 'pdflatex',
'pgf.preamble': ['\\usepackage[utf8x]{inputenc}',
'\\usepackage[T1]{fontenc}']}
mpl.rcParams.update(rc_pdflatex)
create_figure()
compare_figure('pgf_pdflatex.pdf', tol=0)
def test_pdflatex():
import os
if os.environ.get('APPVEYOR', False):
from matplotlib.testing import xfail
xfail("pdflatex test does not work on appveyor due "
"to missing latex fonts")
rc_pdflatex = {
'font.family':
'serif',
'pgf.rcfonts':
False,
'pgf.texsystem':
'pdflatex',
'pgf.preamble':
['\\usepackage[utf8x]{inputenc}', '\\usepackage[T1]{fontenc}']
}
mpl.rcParams.update(rc_pdflatex)
create_figure()
compare_figure('pgf_pdflatex.pdf', tol=0)
def test_save_animation_smoketest(writer, extension):
try:
# for ImageMagick the rcparams must be patched to account for
# 'convert' being a built in MS tool, not the imagemagick
# tool.
writer._init_from_registry()
except AttributeError:
pass
if not animation.writers.is_available(writer):
skip("writer '%s' not available on this system" % writer)
fig, ax = plt.subplots()
line, = ax.plot([], [])
ax.set_xlim(0, 10)
ax.set_ylim(-1, 1)
def init():
line.set_data([], [])
return line,
def animate(i):
x = np.linspace(0, 10, 100)
y = np.sin(x + i)
line.set_data(x, y)
return line,
# Use NamedTemporaryFile: will be automatically deleted
F = tempfile.NamedTemporaryFile(suffix='.' + extension)
F.close()
anim = animation.FuncAnimation(fig, animate, init_func=init, frames=5)
try:
anim.save(F.name, fps=30, writer=writer, bitrate=500)
except UnicodeDecodeError:
xfail("There can be errors in the numpy import stack, "
"see issues #1891 and #2679")
finally:
try:
os.remove(F.name)
except Exception:
pass
