def cairo_convert(pdffile, pngfile, dpi):
cmd = [
"pdftocairo", "-singlefile", "-png",
"-r %d" % dpi, pdffile,
os.path.splitext(pngfile)[0]
]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
def gs_convert(pdffile, pngfile, dpi):
cmd = [
gs, '-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-sDEVICE=png16m', '-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile
]
check_output(cmd, stderr=subprocess.STDOUT)
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except:
pass
# check for ghostscript
try:
gs = "gs" if sys.platform is not "win32" else "gswin32c"
check_output([gs, "-v"], stderr=subprocess.STDOUT)
tools_available.append("gs")
except:
pass
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png", "-r %d" % dpi, pdffile, os.path.splitext(pngfile)[0]]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [
gs,
"-dQUIET",
"-dSAFER",
"-dBATCH",
"-dNOPAUSE",
"-dNOPROMPT",
"-sDEVICE=png16m",
"-dUseCIEColor",
"-dTextAlphaBits=4",
"-dGraphicsAlphaBits=4",
"-dDOINTERPOLATE",
"-sOutputFile=%s" % pngfile,
"-r%d" % dpi,
pdffile,
]
check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
def _print_pdf_to_fh(self, fh):
w, h = self.figure.get_figwidth(), self.figure.get_figheight()
try:
# create and switch to temporary directory
tmpdir = tempfile.mkdtemp()
cwd = os.getcwd()
os.chdir(tmpdir)
# print figure to pgf and compile it with latex
self.print_pgf("figure.pgf")
latex_preamble = get_preamble()
latex_fontspec = get_fontspec()
latexcode = r"""
\documentclass[12pt]{minimal}
\usepackage[paperwidth=%fin, paperheight=%fin, margin=0in]{geometry}
%s
%s
\usepackage{pgf}
\begin{document}
\centering
\input{figure.pgf}
\end{document}""" % (w, h, latex_preamble, latex_fontspec)
with codecs.open("figure.tex", "w", "utf-8") as fh_tex:
fh_tex.write(latexcode)
texcommand = get_texcommand()
cmdargs = [
texcommand, "-interaction=nonstopmode", "-halt-on-error",
"figure.tex"
]
try:
check_output(cmdargs, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
raise RuntimeError(
"%s was not able to process your file.\n\nFull log:\n%s" %
(texcommand, e.output))
# copy file contents to target
with open("figure.pdf", "rb") as fh_src:
shutil.copyfileobj(fh_src, fh)
finally:
os.chdir(cwd)
try:
shutil.rmtree(tmpdir)
except:
sys.stderr.write("could not delete tmp directory %s\n" %
tmpdir)
def _print_pdf_to_fh(self, fh):
w, h = self.figure.get_figwidth(), self.figure.get_figheight()
try:
# create temporary directory for compiling the figure
tmpdir = tempfile.mkdtemp(prefix="mpl_pgf_")
fname_pgf = os.path.join(tmpdir, "figure.pgf")
fname_tex = os.path.join(tmpdir, "figure.tex")
fname_pdf = os.path.join(tmpdir, "figure.pdf")
# print figure to pgf and compile it with latex
self.print_pgf(fname_pgf)
latex_preamble = get_preamble()
latex_fontspec = get_fontspec()
latexcode = r"""
\documentclass[12pt]{minimal}
\usepackage[paperwidth=%fin, paperheight=%fin, margin=0in]{geometry}
%s
%s
\usepackage{pgf}
\begin{document}
\centering
\input{figure.pgf}
\end{document}""" % (w, h, latex_preamble, latex_fontspec)
with codecs.open(fname_tex, "w", "utf-8") as fh_tex:
fh_tex.write(latexcode)
texcommand = get_texcommand()
cmdargs = [
texcommand, "-interaction=nonstopmode", "-halt-on-error",
"figure.tex"
]
try:
check_output(cmdargs, stderr=subprocess.STDOUT, cwd=tmpdir)
except subprocess.CalledProcessError as e:
raise RuntimeError(
"%s was not able to process your file.\n\nFull log:\n%s" %
(texcommand, e.output))
# copy file contents to target
with open(fname_pdf, "rb") as fh_src:
shutil.copyfileobj(fh_src, fh)
finally:
try:
shutil.rmtree(tmpdir)
except:
TmpDirCleaner.add(tmpdir)
def _print_pdf_to_fh(self, fh):
w, h = self.figure.get_figwidth(), self.figure.get_figheight()
try:
# create and switch to temporary directory
tmpdir = tempfile.mkdtemp()
cwd = os.getcwd()
os.chdir(tmpdir)
# print figure to pgf and compile it with latex
self.print_pgf("figure.pgf")
latex_preamble = get_preamble()
latex_fontspec = get_fontspec()
latexcode = r"""
\documentclass[12pt]{minimal}
\usepackage[paperwidth=%fin, paperheight=%fin, margin=0in]{geometry}
%s
%s
\usepackage{pgf}
\begin{document}
\centering
\input{figure.pgf}
\end{document}""" % (
w,
h,
latex_preamble,
latex_fontspec,
)
with codecs.open("figure.tex", "w", "utf-8") as fh_tex:
fh_tex.write(latexcode)
texcommand = get_texcommand()
cmdargs = [texcommand, "-interaction=nonstopmode", "-halt-on-error", "figure.tex"]
try:
check_output(cmdargs, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
raise RuntimeError("%s was not able to process your file.\n\nFull log:\n%s" % (texcommand, e.output))
# copy file contents to target
with open("figure.pdf", "rb") as fh_src:
shutil.copyfileobj(fh_src, fh)
finally:
os.chdir(cwd)
try:
shutil.rmtree(tmpdir)
except:
sys.stderr.write("could not delete tmp directory %s\n" % tmpdir)
def make_pdf_to_png_converter():
"""
Returns a function that converts a pdf file to a png file.
"""
tools_available = []
# check for pdftocairo
try:
check_output(["pdftocairo", "-v"], stderr=subprocess.STDOUT)
tools_available.append("pdftocairo")
except:
pass
# check for ghostscript
try:
gs = "gs" if sys.platform is not "win32" else "gswin32c"
check_output([gs, "-v"], stderr=subprocess.STDOUT)
tools_available.append("gs")
except:
pass
# pick converter
if "pdftocairo" in tools_available:
def cairo_convert(pdffile, pngfile, dpi):
cmd = [
"pdftocairo", "-singlefile", "-png",
"-r %d" % dpi, pdffile,
os.path.splitext(pngfile)[0]
]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
return cairo_convert
elif "gs" in tools_available:
def gs_convert(pdffile, pngfile, dpi):
cmd = [
gs, '-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-sDEVICE=png16m', '-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE',
'-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile
]
check_output(cmd, stderr=subprocess.STDOUT)
return gs_convert
else:
raise RuntimeError("No suitable pdf to png renderer found.")
def _print_pdf_to_fh(self, fh):
w, h = self.figure.get_figwidth(), self.figure.get_figheight()
try:
# create temporary directory for compiling the figure
tmpdir = tempfile.mkdtemp(prefix="mpl_pgf_")
fname_pgf = os.path.join(tmpdir, "figure.pgf")
fname_tex = os.path.join(tmpdir, "figure.tex")
fname_pdf = os.path.join(tmpdir, "figure.pdf")
# print figure to pgf and compile it with latex
self.print_pgf(fname_pgf)
latex_preamble = get_preamble()
latex_fontspec = get_fontspec()
latexcode = r"""
\documentclass[12pt]{minimal}
\usepackage[paperwidth=%fin, paperheight=%fin, margin=0in]{geometry}
%s
%s
\usepackage{pgf}
\begin{document}
\centering
\input{figure.pgf}
\end{document}""" % (w, h, latex_preamble, latex_fontspec)
with codecs.open(fname_tex, "w", "utf-8") as fh_tex:
fh_tex.write(latexcode)
texcommand = get_texcommand()
cmdargs = [texcommand, "-interaction=nonstopmode",
"-halt-on-error", "figure.tex"]
try:
check_output(cmdargs, stderr=subprocess.STDOUT, cwd=tmpdir)
except subprocess.CalledProcessError as e:
raise RuntimeError("%s was not able to process your file.\n\nFull log:\n%s" % (texcommand, e.output))
# copy file contents to target
with open(fname_pdf, "rb") as fh_src:
shutil.copyfileobj(fh_src, fh)
finally:
try:
shutil.rmtree(tmpdir)
except:
TmpDirCleaner.add(tmpdir)
def gs_convert(pdffile, pngfile, dpi):
cmd = [
gs,
"-dQUIET",
"-dSAFER",
"-dBATCH",
"-dNOPAUSE",
"-dNOPROMPT",
"-sDEVICE=png16m",
"-dUseCIEColor",
"-dTextAlphaBits=4",
"-dGraphicsAlphaBits=4",
"-dDOINTERPOLATE",
"-sOutputFile=%s" % pngfile,
"-r%d" % dpi,
pdffile,
]
check_output(cmd, stderr=subprocess.STDOUT)
def gs_convert(pdffile, pngfile, dpi):
cmd = [gs, '-dQUIET', '-dSAFER', '-dBATCH', '-dNOPAUSE', '-dNOPROMPT',
'-sDEVICE=png16m', '-dUseCIEColor', '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-dDOINTERPOLATE', '-sOutputFile=%s' % pngfile,
'-r%d' % dpi, pdffile]
check_output(cmd, stderr=subprocess.STDOUT)
def cairo_convert(pdffile, pngfile, dpi):
cmd = ["pdftocairo", "-singlefile", "-png",
"-r %d" % dpi, pdffile, os.path.splitext(pngfile)[0]]
# for some reason this doesn't work without shell
check_output(" ".join(cmd), shell=True, stderr=subprocess.STDOUT)
