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[bumpversion] | ||
current_version = 0.1.0-dev | ||
commit = True | ||
tag = True | ||
parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)-?(?P<release>dev)? | ||
serialize = | ||
{major}.{minor}.{patch}-{release} | ||
{major}.{minor}.{patch} | ||
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[bumpversion:file:pyproject.toml] | ||
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[bumpversion:file:doc/conf.py] | ||
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[bumpversion:file:README.rst] | ||
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[bumpversion:part:release] | ||
values = | ||
dev | ||
release | ||
optional_value = release | ||
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/.idea | ||
/venv | ||
/.venv | ||
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# Byte-compiled / optimized / DLL files | ||
__pycache__/ | ||
*.py[cod] | ||
*$py.class | ||
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# C extensions | ||
*.so | ||
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# Distribution / packaging | ||
.Python | ||
build/ | ||
develop-eggs/ | ||
dist/ | ||
downloads/ | ||
eggs/ | ||
.eggs/ | ||
lib/ | ||
lib64/ | ||
parts/ | ||
sdist/ | ||
var/ | ||
wheels/ | ||
share/python-wheels/ | ||
*.egg-info/ | ||
.installed.cfg | ||
*.egg | ||
MANIFEST | ||
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# PyInstaller | ||
# Usually these files are written by a python script from a template | ||
# before PyInstaller builds the exe, so as to inject date/other infos into it. | ||
*.manifest | ||
*.spec | ||
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# Installer logs | ||
pip-log.txt | ||
pip-delete-this-directory.txt | ||
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# Unit test / coverage reports | ||
htmlcov/ | ||
.tox/ | ||
.nox/ | ||
.coverage | ||
.coverage.* | ||
.cache | ||
nosetests.xml | ||
coverage.xml | ||
*.cover | ||
*.py,cover | ||
.hypothesis/ | ||
.pytest_cache/ | ||
cover/ | ||
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# Translations | ||
*.mo | ||
*.pot | ||
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# Django stuff: | ||
*.log | ||
local_settings.py | ||
db.sqlite3 | ||
db.sqlite3-journal | ||
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# Flask stuff: | ||
instance/ | ||
.webassets-cache | ||
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# Scrapy stuff: | ||
.scrapy | ||
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# Sphinx documentation | ||
docs/_build/ | ||
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# PyBuilder | ||
.pybuilder/ | ||
target/ | ||
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# Jupyter Notebook | ||
.ipynb_checkpoints | ||
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# IPython | ||
profile_default/ | ||
ipython_config.py | ||
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# pyenv | ||
# For a library or package, you might want to ignore these files since the code is | ||
# intended to run in multiple environments; otherwise, check them in: | ||
# .python-version | ||
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# pipenv | ||
# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. | ||
# However, in case of collaboration, if having platform-specific dependencies or dependencies | ||
# having no cross-platform support, pipenv may install dependencies that don't work, or not | ||
# install all needed dependencies. | ||
#Pipfile.lock | ||
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# PEP 582; used by e.g. github.com/David-OConnor/pyflow | ||
__pypackages__/ | ||
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# Celery stuff | ||
celerybeat-schedule | ||
celerybeat.pid | ||
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# SageMath parsed files | ||
*.sage.py | ||
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# Environments | ||
.env | ||
.venv | ||
env/ | ||
venv/ | ||
ENV/ | ||
env.bak/ | ||
venv.bak/ | ||
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# Spyder project settings | ||
.spyderproject | ||
.spyproject | ||
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# Rope project settings | ||
.ropeproject | ||
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# mkdocs documentation | ||
/site | ||
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# mypy | ||
.mypy_cache/ | ||
.dmypy.json | ||
dmypy.json | ||
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# Pyre type checker | ||
.pyre/ | ||
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# pytype static type analyzer | ||
.pytype/ | ||
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# Cython debug symbols | ||
cython_debug/ |
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ogdf-python: Automagic Python Bindings for the Open Graph Drawing Framework | ||
=========================================================================== | ||
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`Original repository <https://github.com/N-Coder/ogdf-python>`_ (GitHub) - | ||
`Bugtracker and issues <https://github.com/N-Coder/ogdf-python>`_ (GitHub) - | ||
`PyPi package <https://pypi.python.org/pypi/ogdf-python>`_ (PyPi ``ogdf-python``) - | ||
`Documentation <https://ogdf-python.readthedocs.io>`_ (Read The Docs). | ||
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`Official OGDF website <https://ogdf.net>`_ (ogdf.net) - | ||
`Public OGDF repository <https://github.com/ogdf/ogdf>`_ (GitHub) - | ||
`Internal OGDF repository <https://git.tcs.uos.de/ogdf-devs/OGDF>`_ (GitLab) - | ||
`OGDF Documentation <https://ogdf.github.io/docs/ogdf/>`_ (GitHub / Doxygen) - | ||
`cppyy Documentation <https://cppyy.readthedocs.io>`_ (Read The Docs). | ||
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.. |(TM)| unicode:: U+2122 | ||
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``ogdf-python`` uses the `black magic <http://www.camillescott.org/2019/04/11/cmake-cppyy/>`_ | ||
of the awesome `cppyy <https://bitbucket.org/wlav/cppyy/src/master/>`_ library to automagically generate python bindings | ||
for the C++ Open Graph Drawing Framework (OGDF). | ||
It is available for Python>=3.6 and is Apache2 licensed. | ||
There are no binding definitions files, no stuff that needs extra compiling, it just works\ |(TM)|, believe me. | ||
Templates, namespaces, cross-language callbacks and inheritance, pythonic iterators and generators, it's all there. | ||
If you want to learn more about the magic behind the curtains, read `this article <http://www.camillescott.org/2019/04/11/cmake-cppyy/>`_. | ||
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Quickstart | ||
---------- | ||
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First, install the package ``ogdf-python`` package. | ||
Please note that building ``cppyy`` from sources may take a while. | ||
If you didn't install OGDF globally on your system, | ||
either set the ``OGDF_INSTALL_DIR`` to the prefix you configured in ``cmake``, | ||
or set ``OGDF_BUILD_DIR`` to the subdirectory of your copy of the OGDF repo where your | ||
`out-of-source build <https://ogdf.github.io/docs/ogdf/md_doc_build.html#autotoc_md4>`_ lives. | ||
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.. code-block:: bash | ||
$ pip install ogdf-python | ||
$ OGDF_BUILD_DIR=~/ogdf/build-debug python3 | ||
Alternatively, ``ogdf-python`` works very well with Jupyter: | ||
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.. code-block:: python | ||
%env OGDF_BUILD_DIR=~/ogdf/build-debug | ||
from ogdf_python import ogdf, cppinclude | ||
cppinclude("ogdf/basic/graph_generators/randomized.h") | ||
cppinclude("ogdf/layered/SugiyamaLayout.h") | ||
G = ogdf.Graph() | ||
ogdf.setSeed(1) | ||
ogdf.randomPlanarTriconnectedGraph(G, 20, 40) | ||
GA = ogdf.GraphAttributes(G, ogdf.GraphAttributes.all) | ||
for n in G.nodes: | ||
GA.label[n] = "N%s" % n.index() | ||
SL = ogdf.SugiyamaLayout() | ||
SL.call(GA) | ||
GA | ||
.. image:: docs/examples/sugiyama-simple.svg | ||
:target: docs/examples/sugiyama-simple.ipynb | ||
:alt: SugiyamaLayouted Graph | ||
:height: 300 px | ||
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Read the pitfalls section and check out `docs/examples/pitfalls.ipynb <docs/examples/pitfalls.ipynb>`_ | ||
for the more advanced Sugiyama example from the OGDF docs. | ||
There is also a bigger example in `docs/examples/ogdf-includes.ipynb <docs/examples/ogdf-includes.ipynb>`_. | ||
If anything is unclear, check out the python help ``help(ogdf.Graph)`` and read the corresponding OGDF documentation. | ||
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.. | ||
Documentation | ||
------------- | ||
TODO use ``help(ogdf.Graph)`` and sphinx autodoc | ||
.. | ||
Load Custom Code | ||
---------------- | ||
TODO | ||
Pitfalls | ||
-------- | ||
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See also `docs/examples/pitfalls.ipynb <docs/examples/pitfalls.ipynb>`_ for full examples. | ||
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OGDF sometimes takes ownership of objects (usually when they are passed as modules), | ||
which may conflict with the automatic cppyy garbage collection. | ||
Set ``__python_owns__ = False`` on those objects to tell cppyy that those objects | ||
don't need to be garbage collected, but will be cleaned up from the C++ side. | ||
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.. code-block:: python | ||
SL = ogdf.SugiyamaLayout() | ||
ohl = ogdf.OptimalHierarchyLayout() | ||
ohl.__python_owns__ = False | ||
SL.setLayout(ohl) | ||
When you overwrite a python variable pointing to a C++ object (and it is the only | ||
python variable pointing to that object), the C++ will usually be immediately deleted. | ||
This might be a problem if another C++ objects depends ob that old object, e.g. | ||
a ``GraphAttributes`` instance depending on a ``Graph`` instance. | ||
Now the other C++ object has a pointer to a delted and now invalid location, | ||
which will usually cause issues down the road (e.g. when the dependant object is | ||
deleted and wants to deregister from its no longer alive parent). | ||
This overwriting might easily happen if you run a Jupyter cell multiple times. | ||
Please ensure that you always overwrite or delete C++ dependent variables in | ||
the reverse order of their initialization. | ||
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.. code-block:: python | ||
CGA = CG = G = None | ||
G = ogdf.Graph() | ||
CG = ogdf.ClusterGraph(G) | ||
CGA = ogdf.ClusterGraphAttributes(CG, ogdf.ClusterGraphAttributes.all) | ||
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