def make_png(self, tex, fontsize, dpi):
"""
generates a png file containing latex's rendering of tex string
returns the filename
"""
basefile = self.get_basefile(tex, fontsize, dpi)
pngfile = '%s.png' % basefile
# see get_rgba for a discussion of the background
if DEBUG or not os.path.exists(pngfile):
dvifile = self.make_dvi(tex, fontsize)
command = [str("dvipng"), "-bg", "Transparent", "-D", str(dpi),
"-T", "tight", "-o", os.path.basename(pngfile),
os.path.basename(dvifile)]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('dvipng was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by dvipng:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
return pngfile
def make_ps(self, tex, fontsize):
"""
generates a postscript file containing latex's rendering of tex string
returns the file name
"""
basefile = self.get_basefile(tex, fontsize)
psfile = '%s.epsf' % basefile
if DEBUG or not os.path.exists(psfile):
dvifile = self.make_dvi(tex, fontsize)
command = [str("dvips"), "-q", "-E", "-o",
os.path.basename(psfile),
os.path.basename(dvifile)]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('dvips was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by dvips:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
return psfile
def make_ps(self, tex, fontsize):
"""
generates a postscript file containing latex's rendering of tex string
returns the file name
"""
basefile = self.get_basefile(tex, fontsize)
psfile = '%s.epsf' % basefile
if DEBUG or not os.path.exists(psfile):
dvifile = self.make_dvi(tex, fontsize)
command = [
str("dvips"), "-q", "-E", "-o",
os.path.basename(psfile),
os.path.basename(dvifile)
]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('dvips was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by dvips:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
return psfile
def make_png(self, tex, fontsize, dpi):
"""
generates a png file containing latex's rendering of tex string
returns the filename
"""
basefile = self.get_basefile(tex, fontsize, dpi)
pngfile = '%s.png' % basefile
# see get_rgba for a discussion of the background
if DEBUG or not os.path.exists(pngfile):
dvifile = self.make_dvi(tex, fontsize)
command = [
str("dvipng"), "-bg", "Transparent", "-D",
str(dpi), "-T", "tight", "-o",
os.path.basename(pngfile),
os.path.basename(dvifile)
]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('dvipng was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by dvipng:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
return pngfile
def make_dvi_preview(self, tex, fontsize):
"""
generates a dvi file containing latex's layout of tex
string. It calls make_tex_preview() method and store the size
information (width, height, descent) in a separte file.
returns the file name
"""
basefile = self.get_basefile(tex, fontsize)
dvifile = '%s.dvi' % basefile
baselinefile = '%s.baseline' % basefile
if (DEBUG or not os.path.exists(dvifile)
or not os.path.exists(baselinefile)):
texfile = self.make_tex_preview(tex, fontsize)
command = [
str("latex"), "-interaction=nonstopmode",
os.path.basename(texfile)
]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('LaTeX was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by LaTeX:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
# find the box extent information in the latex output
# file and store them in ".baseline" file
m = TexManager._re_vbox.search(report.decode("utf-8"))
with open(basefile + '.baseline', "w") as fh:
fh.write(" ".join(m.groups()))
for fname in glob.glob(basefile + '*'):
if fname.endswith('dvi'):
pass
elif fname.endswith('tex'):
pass
elif fname.endswith('baseline'):
pass
else:
try:
os.remove(fname)
except OSError:
pass
return dvifile
def make_dvi_preview(self, tex, fontsize):
"""
generates a dvi file containing latex's layout of tex
string. It calls make_tex_preview() method and store the size
information (width, height, descent) in a separte file.
returns the file name
"""
basefile = self.get_basefile(tex, fontsize)
dvifile = '%s.dvi' % basefile
baselinefile = '%s.baseline' % basefile
if (DEBUG or not os.path.exists(dvifile) or
not os.path.exists(baselinefile)):
texfile = self.make_tex_preview(tex, fontsize)
command = [str("latex"), "-interaction=nonstopmode",
os.path.basename(texfile)]
mpl.verbose.report(command, 'debug')
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('LaTeX was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by LaTeX:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
# find the box extent information in the latex output
# file and store them in ".baseline" file
m = TexManager._re_vbox.search(report.decode("utf-8"))
with open(basefile + '.baseline', "w") as fh:
fh.write(" ".join(m.groups()))
for fname in glob.glob(basefile + '*'):
if fname.endswith('dvi'):
pass
elif fname.endswith('tex'):
pass
elif fname.endswith('baseline'):
pass
else:
try:
os.remove(fname)
except OSError:
pass
return dvifile
def _run_checked_subprocess(self, command, tex):
_log.debug(command)
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
'{prog} was not able to process the following string:\n'
'{tex!r}\n\n'
'Here is the full report generated by {prog}:\n'
'{exc}\n\n'.format(prog=command[0],
tex=tex.encode('unicode_escape'),
exc=exc.output.decode('utf-8')))
_log.debug(report)
return report
def _run_checked_subprocess(self, command, tex):
_log.debug(command)
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
'{prog} was not able to process the following string:\n'
'{tex!r}\n\n'
'Here is the full report generated by {prog}:\n'
'{exc}\n\n'.format(
prog=command[0],
tex=tex.encode('unicode_escape'),
exc=exc.output.decode('utf-8')))
_log.debug(report)
return report
def make_dvi(self, tex, fontsize):
"""
generates a dvi file containing latex's layout of tex string
returns the file name
"""
if rcParams['text.latex.preview']:
return self.make_dvi_preview(tex, fontsize)
basefile = self.get_basefile(tex, fontsize)
dvifile = '%s.dvi' % basefile
if DEBUG or not os.path.exists(dvifile):
texfile = self.make_tex(tex, fontsize)
command = [
str("latex"), "-interaction=nonstopmode",
os.path.basename(texfile)
]
mpl.verbose.report(command, 'debug')
with Locked(self.texcache):
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('LaTeX was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by LaTeX:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
for fname in glob.glob(basefile + '*'):
if fname.endswith('dvi'):
pass
elif fname.endswith('tex'):
pass
else:
try:
os.remove(fname)
except OSError:
pass
return dvifile
def make_dvi(self, tex, fontsize):
"""
generates a dvi file containing latex's layout of tex string
returns the file name
"""
if rcParams['text.latex.preview']:
return self.make_dvi_preview(tex, fontsize)
basefile = self.get_basefile(tex, fontsize)
dvifile = '%s.dvi' % basefile
if DEBUG or not os.path.exists(dvifile):
texfile = self.make_tex(tex, fontsize)
command = [str("latex"), "-interaction=nonstopmode",
os.path.basename(texfile)]
mpl.verbose.report(command, 'debug')
with Locked(self.texcache):
try:
report = subprocess.check_output(command,
cwd=self.texcache,
stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as exc:
raise RuntimeError(
('LaTeX was not able to process the following '
'string:\n%s\n\n'
'Here is the full report generated by LaTeX:\n%s '
'\n\n' % (repr(tex.encode('unicode_escape')),
exc.output.decode("utf-8"))))
mpl.verbose.report(report, 'debug')
for fname in glob.glob(basefile + '*'):
if fname.endswith('dvi'):
pass
elif fname.endswith('tex'):
pass
else:
try:
os.remove(fname)
except OSError:
pass
return dvifile
