def run_graphviz(filename, image, engine="dot"):
"""
Run :epkg:`GraphViz`.
@param filename filename which contains the graph definition
@param image output image
@param engine *dot* or *neato*
@return output of graphviz
"""
ext = os.path.splitext(image)[-1]
if ext != ".png":
raise Exception("extension should be .png not " + str(ext))
if sys.platform.startswith("win"):
bin_ = os.path.dirname(find_graphviz_dot())
# if bin not in os.environ["PATH"]:
# os.environ["PATH"] = os.environ["PATH"] + ";" + bin
cmd = '"{0}\\{3}" -Tpng "{1}" -o "{2}"'.format(bin_, filename, image,
engine)
else:
cmd = '"{0}" -Tpng "{1}" -o "{2}"'.format(engine, filename, image)
out, err = run_cmd(cmd, wait=True)
if len(err) > 0:
raise Exception(
"Unable to run Graphviz\nCMD:\n{0}\nOUT:\n{1}\nERR:\n{2}".format(
cmd, out, err))
return out
def run_graphviz(filename, image, engine="dot"):
"""
Run :epkg:`GraphViz`.
@param filename filename which contains the graph definition
@param image output image
@param engine *dot* or *neato*
@return output of graphviz
"""
ext = os.path.splitext(image)[-1]
if ext != ".png":
raise Exception("extension should be .png not " + str(ext))
if sys.platform.startswith("win"):
bin_ = os.path.dirname(find_graphviz_dot())
# if bin not in os.environ["PATH"]:
# os.environ["PATH"] = os.environ["PATH"] + ";" + bin
cmd = '"{0}\\{3}" -Tpng "{1}" -o "{2}"'.format(
bin_, filename, image, engine)
else:
cmd = '"{0}" -Tpng "{1}" -o "{2}"'.format(engine, filename, image)
out, err = run_cmd(cmd, wait=True)
if len(err) > 0:
raise Exception(
"unable to run Graphviz\nCMD:\n{0}\nOUT:\n{1}\nERR:\n{2}".format(cmd, out, err))
return out
def dot_exe():
"""
retrieve graphivz executable
@return filename
.. versionadded:: 1.1
"""
r = find_graphviz_dot()
if r is None:
raise FileNotFoundError("unable to find graphviz")
return r
def dot_exe():
"""
retrieve graphivz executable
@return filename
.. versionadded:: 1.1
"""
r = find_graphviz_dot()
if r is None:
raise FileNotFoundError("unable to find graphviz")
return r
def test_paths(self):
fLOG(
__file__,
self._testMethodName,
OutputPrint=__name__ == "__main__")
if is_travis_or_appveyor() in ('travis', 'appveyor'):
return
exe = find_in_PATH("Microsoft")
if sys.platform.startswith("win"):
self.assertTrue(exe is not None)
else:
self.assertTrue(exe is None)
dot = find_graphviz_dot()
if "dot" not in dot:
raise Exception('{0}'.format(dot))
pandoc = find_pandoc_path()
if sys.platform.startswith("win") and "pandoc" not in pandoc.lower():
raise Exception('{0}'.format(pandoc))
latex = find_latex_path()
if sys.platform.startswith("win") and "latex" not in latex and "miktex" not in latex:
raise Exception('{0}'.format(latex))
def test_paths(self):
fLOG(__file__,
self._testMethodName,
OutputPrint=__name__ == "__main__")
if is_travis_or_appveyor() in ('travis', 'appveyor'):
return
exe = find_in_PATH("Microsoft")
if sys.platform.startswith("win"):
self.assertTrue(exe is not None)
else:
self.assertTrue(exe is None)
dot = find_graphviz_dot()
if "dot" not in dot:
raise Exception('{0}'.format(dot))
pandoc = find_pandoc_path()
if sys.platform.startswith("win") and "pandoc" not in pandoc.lower():
raise Exception('{0}'.format(pandoc))
latex = find_latex_path()
if sys.platform.startswith(
"win") and "latex" not in latex and "miktex" not in latex:
raise Exception('{0}'.format(latex))
