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Repository: flupke/pypotrace
Branch: master
Commit: e28c4a25553f
Files: 50
Total size: 235.4 KB
Directory structure:
gitextract_onmz_mbu/
├── .gitignore
├── CONTRIBUTORS
├── GPL
├── LICENSE
├── MANIFEST.in
├── README.rst
├── build.py
├── doc/
│ ├── Makefile
│ ├── _build/
│ │ ├── doctrees/
│ │ │ ├── environment.pickle
│ │ │ ├── index.doctree
│ │ │ ├── ref.doctree
│ │ │ └── tutorial.doctree
│ │ └── html/
│ │ ├── .buildinfo
│ │ ├── _sources/
│ │ │ ├── index.txt
│ │ │ ├── ref.txt
│ │ │ └── tutorial.txt
│ │ ├── _static/
│ │ │ ├── basic.css
│ │ │ ├── default.css
│ │ │ ├── doctools.js
│ │ │ ├── jquery.js
│ │ │ ├── pygments.css
│ │ │ ├── searchtools.js
│ │ │ └── underscore.js
│ │ ├── genindex.html
│ │ ├── index.html
│ │ ├── modindex.html
│ │ ├── objects.inv
│ │ ├── ref.html
│ │ ├── search.html
│ │ ├── searchindex.js
│ │ └── tutorial.html
│ ├── conf.py
│ ├── index.rst
│ ├── make.bat
│ ├── ref.rst
│ └── tutorial.rst
├── potrace/
│ ├── .gitignore
│ ├── __init__.py
│ ├── _potrace.pxd
│ ├── _potrace.pyx
│ ├── agg/
│ │ ├── __init__.py
│ │ ├── basics.pxd
│ │ ├── curves.pxd
│ │ └── curves.pyx
│ ├── bezier.pxd
│ └── bezier.pyx
├── pyproject.toml
└── tests/
├── __init__.py
├── test_basic.py
└── test_bezier.py
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitignore
================================================
build
pypotrace.egg-info
potrace.egg-info
dist
MANIFEST
*.cpp
*.c
*.pyc
/.eggs
.venv/
.vscode/
================================================
FILE: CONTRIBUTORS
================================================
James Boyden: https://github.com/jboy
Klonuo: https://github.com/klonuo
================================================
FILE: GPL
================================================
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Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
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state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
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might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
================================================
FILE: LICENSE
================================================
Python bindings for potrace
Copyright (C) 2010 Luper ROUCH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
================================================
FILE: MANIFEST.in
================================================
include README.rst
include LICENSE
include GPL
include MANIFEST.in
include cysetuptools.py
recursive-include potrace *.py *.pyx *.pxd
recursive-exclude potrace *.c *.cpp
recursive-exclude tests *
================================================
FILE: README.rst
================================================
potrace Python bindings
=======================
These bindings provide an object oriented API to the `potrace`_ library.
The full API documentation is on `<https://pythonhosted.org/pypotrace/>`_.
Example usage
-------------
The bindings work with input images represented as numpy arrays::
import numpy as np
import potrace
# Make a numpy array with a rectangle in the middle
data = np.zeros((32, 32), np.uint32)
data[8:32-8, 8:32-8] = 1
# Create a bitmap from the array
bmp = potrace.Bitmap(data)
# Trace the bitmap to a path
path = bmp.trace()
# Iterate over path curves
for curve in path:
print "start_point =", curve.start_point
for segment in curve:
print segment
end_point_x, end_point_y = segment.end_point
if segment.is_corner:
c_x, c_y = segment.c
else:
c1_x, c1_y = segment.c1
c2_x, c2_y = segment.c2
Installation
------------
Ubuntu
~~~~~~
Install system dependencies::
$ sudo apt-get install build-essential python-dev libagg-dev libpotrace-dev pkg-config
Install pypotrace::
$ git clone https://github.com/flupke/pypotrace.git
$ cd pypotrace
$ pip install numpy
$ pip install .
CentOS/RedHat
~~~~~~~~~~~~~
Install system dependencies::
$ sudo yum -y groupinstall "Development Tools"
$ sudo yum -y install agg-devel potrace-devel python-devel
Install pypotrace::
$ git clone https://github.com/flupke/pypotrace.git
$ cd pypotrace
$ pip install numpy
$ pip install .
OSX
~~~
Install system dependencies::
$ brew install libagg pkg-config potrace
Install pypotrace::
$ git clone https://github.com/flupke/pypotrace.git
$ cd pypotrace
$ pip install numpy
$ pip install .
Windows
~~~~~~~
*Thanks to* `klonuo <https://github.com/klonuo>`_ *for the instructions*
Here are instruction how to make this package work on Windows, by using MinGW
system. Probably it can be done with Visual Studio, but I lack skills to make
such magic.
So assuming user has MinGW available, additional two packages are needed:
1. potrace source: http://potrace.sourceforge.net/#downloading
2. agg source: http://www.antigrain.com/download/index.html
I extracted both packages in my ``C:\src`` folder. Both are easy to build by
executing ``./configure; make`` and ``./autogen.sh; make`` respectively, on
MSYS prompt.
After that, we need some variables to build pypotrace successfully:
First, includes paths:
* "numpy/arrayobject.h": ``C:/Python27/Lib/site-packages/numpy/core/include``
* potrace headers: ``C:/src/potrace-1.11/src``
* agg headers: ``C:/src/agg-2.5``
there is a little catch for agg includes, as paths referenced in cpp sources
point to ``agg2/*.h`` while in downloaded agg package we don't have ``agg2``
folder. For me it was easiest to rename ``C:/src/agg-2.5/include`` to
``C:/src/agg-2.5/agg2`` and use ``C:/src/agg-2.5`` as agg include folder.
Next, libdirs for libraries we build above:
* potrace: ``C:/src/potrace-1.11/src/.libs``
* agg: ``C:/src/agg-2.5/src``
and we can make pypotrace build command, and execute it::
python setup.py build_ext -IC:/Python27/Lib/site-packages/numpy/core/include;C:/src/potrace-1.11/src;C:/src/agg-2.5 -LC:/src/potrace-1.11/src/.libs;C:/src/agg-2.5/src
Finally install the package::
C:\src\git\pypotrace>python setup.py install
running install
running build
running build_py
copying potrace\__init__.py -> build\lib.win32-2.7\potrace
copying potrace\agg\__init__.py -> build\lib.win32-2.7\potrace\agg
running build_ext
skipping 'potrace\_potrace.c' Cython extension (up-to-date)
skipping 'potrace\bezier.cpp' Cython extension (up-to-date)
skipping 'potrace/agg\curves.cpp' Cython extension (up-to-date)
running install_lib
creating C:\Python27\Lib\site-packages\potrace
creating C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\agg\curves.pyd -> C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\agg\__init__.py -> C:\Python27\Lib\site-packages\potrace\agg
copying build\lib.win32-2.7\potrace\bezier.pyd -> C:\Python27\Lib\site-packages\potrace
copying build\lib.win32-2.7\potrace\_potrace.pyd -> C:\Python27\Lib\site-packages\potrace
copying build\lib.win32-2.7\potrace\__init__.py -> C:\Python27\Lib\site-packages\potrace
byte-compiling C:\Python27\Lib\site-packages\potrace\agg\__init__.py to __init__.pyc
byte-compiling C:\Python27\Lib\site-packages\potrace\__init__.py to __init__.pyc
running install_egg_info
Writing C:\Python27\Lib\site-packages\pypotrace-0.1-py2.7.egg-info
Running tests
-------------
You can check everything is working correctly by running the tests::
$ pip install '.[dev]'
$ nosetests -v
Documentation
-------------
The documentation is hosted here: http://packages.python.org/pypotrace
A copy is also included in the ``doc/_build/html`` directory of the source
distribution.
Homepage
--------
This project is hosted on github: http://github.com/flupke/pypotrace
.. _potrace: http://potrace.sourceforge.net/
================================================
FILE: build.py
================================================
import subprocess
import shlex
from setuptools import Extension
from Cython.Build import cythonize
import numpy as np
def pkg_config(pkg_name, command):
return subprocess.check_output(["pkg-config", command, pkg_name]).decode(
"utf8"
)
def build(setup_kwargs):
"""Needed for the poetry building interface."""
extra_compile_args = pkg_config("libagg", '--cflags')
extra_link_args = pkg_config("libagg", '--libs')
extra_compile_args = shlex.split(extra_compile_args)
extra_link_args = shlex.split(extra_link_args)
print(extra_compile_args)
print(extra_link_args)
extensions = [
Extension(
"potrace._potrace",
sources=["potrace/_potrace.pyx"],
include_dirs=[np.get_include()],
libraries=["potrace"],
),
Extension(
"potrace.bezier",
sources=["potrace/bezier.pyx"],
include_dirs=[np.get_include()],
language="c++",
extra_compile_args=extra_compile_args,
extra_link_args=extra_link_args,
),
Extension(
"potrace.agg.curves",
sources=["potrace/agg/curves.pyx"],
language="c++",
extra_compile_args=extra_compile_args,
extra_link_args=extra_link_args,
),
]
extensions = cythonize(extensions)
setup_kwargs.update(
{
"ext_modules": extensions,
"include_dirs": [np.get_include()],
}
)
================================================
FILE: doc/Makefile
================================================
# Makefile for Sphinx documentation
#
# You can set these variables from the command line.
SPHINXOPTS =
SPHINXBUILD = sphinx-build
PAPER =
BUILDDIR = _build
# Internal variables.
PAPEROPT_a4 = -D latex_paper_size=a4
PAPEROPT_letter = -D latex_paper_size=letter
ALLSPHINXOPTS = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp epub latex changes linkcheck doctest
help:
@echo "Please use \`make <target>' where <target> is one of"
@echo " html to make standalone HTML files"
@echo " dirhtml to make HTML files named index.html in directories"
@echo " singlehtml to make a single large HTML file"
@echo " pickle to make pickle files"
@echo " json to make JSON files"
@echo " htmlhelp to make HTML files and a HTML help project"
@echo " qthelp to make HTML files and a qthelp project"
@echo " devhelp to make HTML files and a Devhelp project"
@echo " epub to make an epub"
@echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
@echo " latexpdf to make LaTeX files and run them through pdflatex"
@echo " changes to make an overview of all changed/added/deprecated items"
@echo " linkcheck to check all external links for integrity"
@echo " doctest to run all doctests embedded in the documentation (if enabled)"
clean:
-rm -rf $(BUILDDIR)/*
html:
$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
@echo
@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
dirhtml:
$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
@echo
@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
singlehtml:
$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
@echo
@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
pickle:
$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
@echo
@echo "Build finished; now you can process the pickle files."
json:
$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
@echo
@echo "Build finished; now you can process the JSON files."
htmlhelp:
$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
@echo
@echo "Build finished; now you can run HTML Help Workshop with the" \
".hhp project file in $(BUILDDIR)/htmlhelp."
qthelp:
$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
@echo
@echo "Build finished; now you can run "qcollectiongenerator" with the" \
".qhcp project file in $(BUILDDIR)/qthelp, like this:"
@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/potrace.qhcp"
@echo "To view the help file:"
@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/potrace.qhc"
devhelp:
$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) _build/devhelp
@echo
@echo "Build finished."
@echo "To view the help file:"
@echo "# mkdir -p $$HOME/.local/share/devhelp/potrace"
@echo "# ln -s _build/devhelp $$HOME/.local/share/devhelp/potrace"
@echo "# devhelp"
epub:
$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
@echo
@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
latex:
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
@echo
@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
@echo "Run \`make all-pdf' or \`make all-ps' in that directory to" \
"run these through (pdf)latex."
latexpdf: latex
$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) _build/latex
@echo "Running LaTeX files through pdflatex..."
make -C _build/latex all-pdf
@echo "pdflatex finished; the PDF files are in _build/latex."
changes:
$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
@echo
@echo "The overview file is in $(BUILDDIR)/changes."
linkcheck:
$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
@echo
@echo "Link check complete; look for any errors in the above output " \
"or in $(BUILDDIR)/linkcheck/output.txt."
doctest:
$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
@echo "Testing of doctests in the sources finished, look at the " \
"results in $(BUILDDIR)/doctest/output.txt."
================================================
FILE: doc/_build/html/.buildinfo
================================================
# Sphinx build info version 1
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
config: df932b24544803dd899b353050e7ea2a
tags: fbb0d17656682115ca4d033fb2f83ba1
================================================
FILE: doc/_build/html/_sources/index.txt
================================================
pypotrace documentation
=======================
pypotrace are Python bindings for `potrace`_, an utility to transform bitmap
images into vector images.
.. _potrace: http://potrace.sourceforge.net/
Contents:
.. toctree::
:maxdepth: 2
tutorial
ref
Indices and tables
==================
* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`
================================================
FILE: doc/_build/html/_sources/ref.txt
================================================
:mod:`potrace` -- API reference
===============================
.. module:: potrace
.. autofunction:: potracelib_version
Constants for :meth:`Bitmap.trace` *turnpolicy* parameter:
.. data:: TURNPOLICY_BLACK
.. data:: TURNPOLICY_WHITE
.. data:: TURNPOLICY_LEFT
.. data:: TURNPOLICY_RIGHT
.. data:: TURNPOLICY_MINORITY
.. data:: TURNPOLICY_MAJORITY
.. data:: TURNPOLICY_RANDOM
Bitmap objects
--------------
You start a trace by creating a :class:`Bitmap` instance, e.g.::
from potrace import Bitmap
# Initialize data, for example convert a PIL image to a numpy array
# [...]
bitmap = Bitmap(data)
path = bitmap.trace()
.. autoclass:: Bitmap(data)
.. automethod:: trace([turdsize, turnpolicy, alphamax, opticurve, opttolerance, progress_func])
Path objects
------------
:meth:`Bitmap.trace` returns a :class:`Path` instance, containing the whole
vectorized image.
.. autoclass:: Path
.. attribute:: curves
The list of :class:`Curve` objects composing the path.
.. attribute:: curves_tree
The top level :class:`Curve` objects in the tree representation of the
path.
Curve objects
-------------
:class:`Path` objects are made of one or more of :class:`Curve` objects,
which are themselves composed of a list of segments.
Curves can have children curves. Children curves are guaranteed to be enclosed
by their parent.
.. autoclass:: Curve
.. attribute:: regular
.. attribute:: adaptive
Constants for the :meth:`tesselate` method.
.. autoattribute:: start_point
.. attribute:: segments
The list of segment objects that compose the curve.
.. attribute:: children
The list of children curves.
.. automethod:: tesselate([method, res])
There are two types of segments, :class:`BezierSegment`:
.. image:: _static/bezier.png
and :class:`CornerSegment`:
.. image:: _static/corner.png
Since curves are always closed, segments only store their control points and
end point; their starting point is always the previous segment's end point. You
can check the :attr:`is_corner` attribute to determine the segments type easily.
.. autoclass:: BezierSegment
.. attribute:: c1
The segment's starting point control point.
.. attribute:: c2
The segment's end point control point.
.. attribute:: end_point
The segment's end point.
.. attribute:: is_corner
Always :const:`False`.
.. autoclass:: CornerSegment
.. attribute:: c
The segment's corner point.
.. attribute:: end_point
The segment's end point.
.. attribute:: is_corner
Always :const:`True`.
================================================
FILE: doc/_build/html/_sources/tutorial.txt
================================================
Tutorial
========
.. currentmodule:: potrace
Here is a simple example using pypotrace::
import potrace
# Make a numpy array with a rectangle in the middle
data = np.zeros((32, 32), np.uint32)
data[8:32-8, 8:32-8] = 1
# Create a bitmap from the array
bmp = potrace.Bitmap(data)
# Trace the bitmap to a path
path = bmp.trace()
# Iterate over path curves
for curve in path:
print "start_point =", curve.start_point
for segment in curve:
print segment
end_point_x, end_point_y = segment.end_point
if segment.is_corner:
c_x, c_y = segment.c
else:
c1_x, c1_y = segment.c1
c2_x, c2_y = segment.c2
The main class is :class:`Bitmap`. You pass its constructor a 2D numpy array,
and you call its :meth:`trace() <Bitmap.trace>` method to convert it to a
:class:`Path` object.
================================================
FILE: doc/_build/html/_static/basic.css
================================================
/*
* basic.css
* ~~~~~~~~~
*
* Sphinx stylesheet -- basic theme.
*
* :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
/* -- main layout ----------------------------------------------------------- */
div.clearer {
clear: both;
}
/* -- relbar ---------------------------------------------------------------- */
div.related {
width: 100%;
font-size: 90%;
}
div.related h3 {
display: none;
}
div.related ul {
margin: 0;
padding: 0 0 0 10px;
list-style: none;
}
div.related li {
display: inline;
}
div.related li.right {
float: right;
margin-right: 5px;
}
/* -- sidebar --------------------------------------------------------------- */
div.sphinxsidebarwrapper {
padding: 10px 5px 0 10px;
}
div.sphinxsidebar {
float: left;
width: 230px;
margin-left: -100%;
font-size: 90%;
}
div.sphinxsidebar ul {
list-style: none;
}
div.sphinxsidebar ul ul,
div.sphinxsidebar ul.want-points {
margin-left: 20px;
list-style: square;
}
div.sphinxsidebar ul ul {
margin-top: 0;
margin-bottom: 0;
}
div.sphinxsidebar form {
margin-top: 10px;
}
div.sphinxsidebar input {
border: 1px solid #98dbcc;
font-family: sans-serif;
font-size: 1em;
}
img {
border: 0;
}
/* -- search page ----------------------------------------------------------- */
ul.search {
margin: 10px 0 0 20px;
padding: 0;
}
ul.search li {
padding: 5px 0 5px 20px;
background-image: url(file.png);
background-repeat: no-repeat;
background-position: 0 7px;
}
ul.search li a {
font-weight: bold;
}
ul.search li div.context {
color: #888;
margin: 2px 0 0 30px;
text-align: left;
}
ul.keywordmatches li.goodmatch a {
font-weight: bold;
}
/* -- index page ------------------------------------------------------------ */
table.contentstable {
width: 90%;
}
table.contentstable p.biglink {
line-height: 150%;
}
a.biglink {
font-size: 1.3em;
}
span.linkdescr {
font-style: italic;
padding-top: 5px;
font-size: 90%;
}
/* -- general index --------------------------------------------------------- */
table.indextable {
width: 100%;
}
table.indextable td {
text-align: left;
vertical-align: top;
}
table.indextable dl, table.indextable dd {
margin-top: 0;
margin-bottom: 0;
}
table.indextable tr.pcap {
height: 10px;
}
table.indextable tr.cap {
margin-top: 10px;
background-color: #f2f2f2;
}
img.toggler {
margin-right: 3px;
margin-top: 3px;
cursor: pointer;
}
div.modindex-jumpbox {
border-top: 1px solid #ddd;
border-bottom: 1px solid #ddd;
margin: 1em 0 1em 0;
padding: 0.4em;
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div.genindex-jumpbox {
border-top: 1px solid #ddd;
border-bottom: 1px solid #ddd;
margin: 1em 0 1em 0;
padding: 0.4em;
}
/* -- general body styles --------------------------------------------------- */
a.headerlink {
visibility: hidden;
}
h1:hover > a.headerlink,
h2:hover > a.headerlink,
h3:hover > a.headerlink,
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h5:hover > a.headerlink,
h6:hover > a.headerlink,
dt:hover > a.headerlink {
visibility: visible;
}
div.body p.caption {
text-align: inherit;
}
div.body td {
text-align: left;
}
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padding-left: 1em;
}
.first {
margin-top: 0 !important;
}
p.rubric {
margin-top: 30px;
font-weight: bold;
}
/* -- sidebars -------------------------------------------------------------- */
div.sidebar {
margin: 0 0 0.5em 1em;
border: 1px solid #ddb;
padding: 7px 7px 0 7px;
background-color: #ffe;
width: 40%;
float: right;
}
p.sidebar-title {
font-weight: bold;
}
/* -- topics ---------------------------------------------------------------- */
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border: 1px solid #ccc;
padding: 7px 7px 0 7px;
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}
p.topic-title {
font-size: 1.1em;
font-weight: bold;
margin-top: 10px;
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margin-top: 10px;
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margin-bottom: 0;
margin-left: 1.5em;
}
/* -- code displays --------------------------------------------------------- */
pre {
overflow: auto;
}
td.linenos pre {
padding: 5px 0px;
border: 0;
background-color: transparent;
color: #aaa;
}
table.highlighttable {
margin-left: 0.5em;
}
table.highlighttable td {
padding: 0 0.5em 0 0.5em;
}
tt.descname {
background-color: transparent;
font-weight: bold;
font-size: 1.2em;
}
tt.descclassname {
background-color: transparent;
}
tt.xref, a tt {
background-color: transparent;
font-weight: bold;
}
h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
background-color: transparent;
}
/* -- math display ---------------------------------------------------------- */
img.math {
vertical-align: middle;
}
div.body div.math p {
text-align: center;
}
span.eqno {
float: right;
}
/* -- printout stylesheet --------------------------------------------------- */
@media print {
div.document,
div.documentwrapper,
div.bodywrapper {
margin: 0 !important;
width: 100%;
}
div.sphinxsidebar,
div.related,
div.footer,
#top-link {
display: none;
}
}
================================================
FILE: doc/_build/html/_static/default.css
================================================
/*
* default.css_t
* ~~~~~~~~~~~~~
*
* Sphinx stylesheet -- default theme.
*
* :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
@import url("basic.css");
/* -- page layout ----------------------------------------------------------- */
body {
font-family: sans-serif;
font-size: 100%;
background-color: #11303d;
color: #000;
margin: 0;
padding: 0;
}
div.document {
background-color: #1c4e63;
}
div.documentwrapper {
float: left;
width: 100%;
}
div.bodywrapper {
margin: 0 0 0 230px;
}
div.body {
background-color: #ffffff;
color: #000000;
padding: 0 20px 30px 20px;
}
div.footer {
color: #ffffff;
width: 100%;
padding: 9px 0 9px 0;
text-align: center;
font-size: 75%;
}
div.footer a {
color: #ffffff;
text-decoration: underline;
}
div.related {
background-color: #133f52;
line-height: 30px;
color: #ffffff;
}
div.related a {
color: #ffffff;
}
div.sphinxsidebar {
}
div.sphinxsidebar h3 {
font-family: 'Trebuchet MS', sans-serif;
color: #ffffff;
font-size: 1.4em;
font-weight: normal;
margin: 0;
padding: 0;
}
div.sphinxsidebar h3 a {
color: #ffffff;
}
div.sphinxsidebar h4 {
font-family: 'Trebuchet MS', sans-serif;
color: #ffffff;
font-size: 1.3em;
font-weight: normal;
margin: 5px 0 0 0;
padding: 0;
}
div.sphinxsidebar p {
color: #ffffff;
}
div.sphinxsidebar p.topless {
margin: 5px 10px 10px 10px;
}
div.sphinxsidebar ul {
margin: 10px;
padding: 0;
color: #ffffff;
}
div.sphinxsidebar a {
color: #98dbcc;
}
div.sphinxsidebar input {
border: 1px solid #98dbcc;
font-family: sans-serif;
font-size: 1em;
}
/* -- body styles ----------------------------------------------------------- */
a {
color: #355f7c;
text-decoration: none;
}
a:visited {
color: #355f7c;
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
div.body p, div.body dd, div.body li {
text-align: justify;
line-height: 130%;
}
div.body h1,
div.body h2,
div.body h3,
div.body h4,
div.body h5,
div.body h6 {
font-family: 'Trebuchet MS', sans-serif;
background-color: #f2f2f2;
font-weight: normal;
color: #20435c;
border-bottom: 1px solid #ccc;
margin: 20px -20px 10px -20px;
padding: 3px 0 3px 10px;
}
div.body h1 { margin-top: 0; font-size: 200%; }
div.body h2 { font-size: 160%; }
div.body h3 { font-size: 140%; }
div.body h4 { font-size: 120%; }
div.body h5 { font-size: 110%; }
div.body h6 { font-size: 100%; }
a.headerlink {
color: #c60f0f;
font-size: 0.8em;
padding: 0 4px 0 4px;
text-decoration: none;
}
a.headerlink:hover {
background-color: #c60f0f;
color: white;
}
div.body p, div.body dd, div.body li {
text-align: justify;
line-height: 130%;
}
div.admonition p.admonition-title + p {
display: inline;
}
div.admonition p {
margin-bottom: 5px;
}
div.admonition pre {
margin-bottom: 5px;
}
div.admonition ul, div.admonition ol {
margin-bottom: 5px;
}
div.note {
background-color: #eee;
border: 1px solid #ccc;
}
div.seealso {
background-color: #ffc;
border: 1px solid #ff6;
}
div.topic {
background-color: #eee;
}
div.warning {
background-color: #ffe4e4;
border: 1px solid #f66;
}
p.admonition-title {
display: inline;
}
p.admonition-title:after {
content: ":";
}
pre {
padding: 5px;
background-color: #eeffcc;
color: #333333;
line-height: 120%;
border: 1px solid #ac9;
border-left: none;
border-right: none;
}
tt {
background-color: #ecf0f3;
padding: 0 1px 0 1px;
font-size: 0.95em;
}
th {
background-color: #ede;
}
.warning tt {
background: #efc2c2;
}
.note tt {
background: #d6d6d6;
}
================================================
FILE: doc/_build/html/_static/doctools.js
================================================
/*
* doctools.js
* ~~~~~~~~~~~
*
* Sphinx JavaScript utilties for all documentation.
*
* :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
/**
* select a different prefix for underscore
*/
$u = _.noConflict();
/**
* make the code below compatible with browsers without
* an installed firebug like debugger
*/
if (!window.console || !console.firebug) {
var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
"group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
window.console = {};
for (var i = 0; i < names.length; ++i)
window.console[names[i]] = function() {};
}
/**
* small helper function to urldecode strings
*/
jQuery.urldecode = function(x) {
return decodeURIComponent(x).replace(/\+/g, ' ');
}
/**
* small helper function to urlencode strings
*/
jQuery.urlencode = encodeURIComponent;
/**
* This function returns the parsed url parameters of the
* current request. Multiple values per key are supported,
* it will always return arrays of strings for the value parts.
*/
jQuery.getQueryParameters = function(s) {
if (typeof s == 'undefined')
s = document.location.search;
var parts = s.substr(s.indexOf('?') + 1).split('&');
var result = {};
for (var i = 0; i < parts.length; i++) {
var tmp = parts[i].split('=', 2);
var key = jQuery.urldecode(tmp[0]);
var value = jQuery.urldecode(tmp[1]);
if (key in result)
result[key].push(value);
else
result[key] = [value];
}
return result;
};
/**
* small function to check if an array contains
* a given item.
*/
jQuery.contains = function(arr, item) {
for (var i = 0; i < arr.length; i++) {
if (arr[i] == item)
return true;
}
return false;
};
/**
* highlight a given string on a jquery object by wrapping it in
* span elements with the given class name.
*/
jQuery.fn.highlightText = function(text, className) {
function highlight(node) {
if (node.nodeType == 3) {
var val = node.nodeValue;
var pos = val.toLowerCase().indexOf(text);
if (pos >= 0 && !jQuery.className.has(node.parentNode, className)) {
var span = document.createElement("span");
span.className = className;
span.appendChild(document.createTextNode(val.substr(pos, text.length)));
node.parentNode.insertBefore(span, node.parentNode.insertBefore(
document.createTextNode(val.substr(pos + text.length)),
node.nextSibling));
node.nodeValue = val.substr(0, pos);
}
}
else if (!jQuery(node).is("button, select, textarea")) {
jQuery.each(node.childNodes, function() {
highlight(this);
});
}
}
return this.each(function() {
highlight(this);
});
};
/**
* Small JavaScript module for the documentation.
*/
var Documentation = {
init : function() {
this.fixFirefoxAnchorBug();
this.highlightSearchWords();
this.initModIndex();
},
/**
* i18n support
*/
TRANSLATIONS : {},
PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
LOCALE : 'unknown',
// gettext and ngettext don't access this so that the functions
// can savely bound to a different name (_ = Documentation.gettext)
gettext : function(string) {
var translated = Documentation.TRANSLATIONS[string];
if (typeof translated == 'undefined')
return string;
return (typeof translated == 'string') ? translated : translated[0];
},
ngettext : function(singular, plural, n) {
var translated = Documentation.TRANSLATIONS[singular];
if (typeof translated == 'undefined')
return (n == 1) ? singular : plural;
return translated[Documentation.PLURALEXPR(n)];
},
addTranslations : function(catalog) {
for (var key in catalog.messages)
this.TRANSLATIONS[key] = catalog.messages[key];
this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
this.LOCALE = catalog.locale;
},
/**
* add context elements like header anchor links
*/
addContextElements : function() {
$('div[id] > :header:first').each(function() {
$('<a class="headerlink">\u00B6</a>').
attr('href', '#' + this.id).
attr('title', _('Permalink to this headline')).
appendTo(this);
});
$('dt[id]').each(function() {
$('<a class="headerlink">\u00B6</a>').
attr('href', '#' + this.id).
attr('title', _('Permalink to this definition')).
appendTo(this);
});
},
/**
* workaround a firefox stupidity
*/
fixFirefoxAnchorBug : function() {
if (document.location.hash && $.browser.mozilla)
window.setTimeout(function() {
document.location.href += '';
}, 10);
},
/**
* highlight the search words provided in the url in the text
*/
highlightSearchWords : function() {
var params = $.getQueryParameters();
var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
if (terms.length) {
var body = $('div.body');
window.setTimeout(function() {
$.each(terms, function() {
body.highlightText(this.toLowerCase(), 'highlight');
});
}, 10);
$('<li class="highlight-link"><a href="javascript:Documentation.' +
'hideSearchWords()">' + _('Hide Search Matches') + '</a></li>')
.appendTo($('.sidebar .this-page-menu'));
}
},
/**
* init the modindex toggle buttons
*/
initModIndex : function() {
var togglers = $('img.toggler').click(function() {
var src = $(this).attr('src');
var idnum = $(this).attr('id').substr(7);
console.log($('tr.cg-' + idnum).toggle());
if (src.substr(-9) == 'minus.png')
$(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
else
$(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
}).css('display', '');
if (DOCUMENTATION_OPTIONS.COLLAPSE_MODINDEX) {
togglers.click();
}
},
/**
* helper function to hide the search marks again
*/
hideSearchWords : function() {
$('.sidebar .this-page-menu li.highlight-link').fadeOut(300);
$('span.highlight').removeClass('highlight');
},
/**
* make the url absolute
*/
makeURL : function(relativeURL) {
return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
},
/**
* get the current relative url
*/
getCurrentURL : function() {
var path = document.location.pathname;
var parts = path.split(/\//);
$.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
if (this == '..')
parts.pop();
});
var url = parts.join('/');
return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
}
};
// quick alias for translations
_ = Documentation.gettext;
$(document).ready(function() {
Documentation.init();
});
================================================
FILE: doc/_build/html/_static/jquery.js
================================================
/*
* jQuery 1.2.6 - New Wave Javascript
*
* Copyright (c) 2008 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $
* $Rev: 5685 $
*/
(function(){var _jQuery=window.jQuery,_$=window.$;var jQuery=window.jQuery=window.$=function(selector,context){return new jQuery.fn.init(selector,context);};var quickExpr=/^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/,isSimple=/^.[^:#\[\.]*$/,undefined;jQuery.fn=jQuery.prototype={init:function(selector,context){selector=selector||document;if(selector.nodeType){this[0]=selector;this.length=1;return this;}if(typeof selector=="string"){var match=quickExpr.exec(selector);if(match&&(match[1]||!context)){if(match[1])selector=jQuery.clean([match[1]],context);else{var elem=document.getElementById(match[3]);if(elem){if(elem.id!=match[3])return jQuery().find(selector);return jQuery(elem);}selector=[];}}else
return jQuery(context).find(selector);}else if(jQuery.isFunction(selector))return jQuery(document)[jQuery.fn.ready?"ready":"load"](selector);return this.setArray(jQuery.makeArray(selector));},jquery:"1.2.6",size:function(){return this.length;},length:0,get:function(num){return num==undefined?jQuery.makeArray(this):this[num];},pushStack:function(elems){var ret=jQuery(elems);ret.prevObject=this;return ret;},setArray:function(elems){this.length=0;Array.prototype.push.apply(this,elems);return this;},each:function(callback,args){return jQuery.each(this,callback,args);},index:function(elem){var ret=-1;return jQuery.inArray(elem&&elem.jquery?elem[0]:elem,this);},attr:function(name,value,type){var options=name;if(name.constructor==String)if(value===undefined)return this[0]&&jQuery[type||"attr"](this[0],name);else{options={};options[name]=value;}return this.each(function(i){for(name in options)jQuery.attr(type?this.style:this,name,jQuery.prop(this,options[name],type,i,name));});},css:function(key,value){if((key=='width'||key=='height')&&parseFloat(value)<0)value=undefined;return this.attr(key,value,"curCSS");},text:function(text){if(typeof text!="object"&&text!=null)return this.empty().append((this[0]&&this[0].ownerDocument||document).createTextNode(text));var ret="";jQuery.each(text||this,function(){jQuery.each(this.childNodes,function(){if(this.nodeType!=8)ret+=this.nodeType!=1?this.nodeValue:jQuery.fn.text([this]);});});return ret;},wrapAll:function(html){if(this[0])jQuery(html,this[0].ownerDocument).clone().insertBefore(this[0]).map(function(){var elem=this;while(elem.firstChild)elem=elem.firstChild;return elem;}).append(this);return this;},wrapInner:function(html){return this.each(function(){jQuery(this).contents().wrapAll(html);});},wrap:function(html){return this.each(function(){jQuery(this).wrapAll(html);});},append:function(){return this.domManip(arguments,true,false,function(elem){if(this.nodeType==1)this.appendChild(elem);});},prepend:function(){return this.domManip(arguments,true,true,function(elem){if(this.nodeType==1)this.insertBefore(elem,this.firstChild);});},before:function(){return this.domManip(arguments,false,false,function(elem){this.parentNode.insertBefore(elem,this);});},after:function(){return this.domManip(arguments,false,true,function(elem){this.parentNode.insertBefore(elem,this.nextSibling);});},end:function(){return this.prevObject||jQuery([]);},find:function(selector){var elems=jQuery.map(this,function(elem){return jQuery.find(selector,elem);});return this.pushStack(/[^+>] [^+>]/.test(selector)||selector.indexOf("..")>-1?jQuery.unique(elems):elems);},clone:function(events){var ret=this.map(function(){if(jQuery.browser.msie&&!jQuery.isXMLDoc(this)){var clone=this.cloneNode(true),container=document.createElement("div");container.appendChild(clone);return jQuery.clean([container.innerHTML])[0];}else
return this.cloneNode(true);});var clone=ret.find("*").andSelf().each(function(){if(this[expando]!=undefined)this[expando]=null;});if(events===true)this.find("*").andSelf().each(function(i){if(this.nodeType==3)return;var events=jQuery.data(this,"events");for(var type in events)for(var handler in events[type])jQuery.event.add(clone[i],type,events[type][handler],events[type][handler].data);});return ret;},filter:function(selector){return this.pushStack(jQuery.isFunction(selector)&&jQuery.grep(this,function(elem,i){return selector.call(elem,i);})||jQuery.multiFilter(selector,this));},not:function(selector){if(selector.constructor==String)if(isSimple.test(selector))return this.pushStack(jQuery.multiFilter(selector,this,true));else
selector=jQuery.multiFilter(selector,this);var isArrayLike=selector.length&&selector[selector.length-1]!==undefined&&!selector.nodeType;return this.filter(function(){return isArrayLike?jQuery.inArray(this,selector)<0:this!=selector;});},add:function(selector){return this.pushStack(jQuery.unique(jQuery.merge(this.get(),typeof selector=='string'?jQuery(selector):jQuery.makeArray(selector))));},is:function(selector){return!!selector&&jQuery.multiFilter(selector,this).length>0;},hasClass:function(selector){return this.is("."+selector);},val:function(value){if(value==undefined){if(this.length){var elem=this[0];if(jQuery.nodeName(elem,"select")){var index=elem.selectedIndex,values=[],options=elem.options,one=elem.type=="select-one";if(index<0)return null;for(var i=one?index:0,max=one?index+1:options.length;i<max;i++){var option=options[i];if(option.selected){value=jQuery.browser.msie&&!option.attributes.value.specified?option.text:option.value;if(one)return value;values.push(value);}}return values;}else
return(this[0].value||"").replace(/\r/g,"");}return undefined;}if(value.constructor==Number)value+='';return this.each(function(){if(this.nodeType!=1)return;if(value.constructor==Array&&/radio|checkbox/.test(this.type))this.checked=(jQuery.inArray(this.value,value)>=0||jQuery.inArray(this.name,value)>=0);else if(jQuery.nodeName(this,"select")){var values=jQuery.makeArray(value);jQuery("option",this).each(function(){this.selected=(jQuery.inArray(this.value,values)>=0||jQuery.inArray(this.text,values)>=0);});if(!values.length)this.selectedIndex=-1;}else
this.value=value;});},html:function(value){return value==undefined?(this[0]?this[0].innerHTML:null):this.empty().append(value);},replaceWith:function(value){return this.after(value).remove();},eq:function(i){return this.slice(i,i+1);},slice:function(){return this.pushStack(Array.prototype.slice.apply(this,arguments));},map:function(callback){return this.pushStack(jQuery.map(this,function(elem,i){return callback.call(elem,i,elem);}));},andSelf:function(){return this.add(this.prevObject);},data:function(key,value){var parts=key.split(".");parts[1]=parts[1]?"."+parts[1]:"";if(value===undefined){var data=this.triggerHandler("getData"+parts[1]+"!",[parts[0]]);if(data===undefined&&this.length)data=jQuery.data(this[0],key);return data===undefined&&parts[1]?this.data(parts[0]):data;}else
return this.trigger("setData"+parts[1]+"!",[parts[0],value]).each(function(){jQuery.data(this,key,value);});},removeData:function(key){return this.each(function(){jQuery.removeData(this,key);});},domManip:function(args,table,reverse,callback){var clone=this.length>1,elems;return this.each(function(){if(!elems){elems=jQuery.clean(args,this.ownerDocument);if(reverse)elems.reverse();}var obj=this;if(table&&jQuery.nodeName(this,"table")&&jQuery.nodeName(elems[0],"tr"))obj=this.getElementsByTagName("tbody")[0]||this.appendChild(this.ownerDocument.createElement("tbody"));var scripts=jQuery([]);jQuery.each(elems,function(){var elem=clone?jQuery(this).clone(true)[0]:this;if(jQuery.nodeName(elem,"script"))scripts=scripts.add(elem);else{if(elem.nodeType==1)scripts=scripts.add(jQuery("script",elem).remove());callback.call(obj,elem);}});scripts.each(evalScript);});}};jQuery.fn.init.prototype=jQuery.fn;function evalScript(i,elem){if(elem.src)jQuery.ajax({url:elem.src,async:false,dataType:"script"});else
jQuery.globalEval(elem.text||elem.textContent||elem.innerHTML||"");if(elem.parentNode)elem.parentNode.removeChild(elem);}function now(){return+new Date;}jQuery.extend=jQuery.fn.extend=function(){var target=arguments[0]||{},i=1,length=arguments.length,deep=false,options;if(target.constructor==Boolean){deep=target;target=arguments[1]||{};i=2;}if(typeof target!="object"&&typeof target!="function")target={};if(length==i){target=this;--i;}for(;i<length;i++)if((options=arguments[i])!=null)for(var name in options){var src=target[name],copy=options[name];if(target===copy)continue;if(deep&©&&typeof copy=="object"&&!copy.nodeType)target[name]=jQuery.extend(deep,src||(copy.length!=null?[]:{}),copy);else if(copy!==undefined)target[name]=copy;}return target;};var expando="jQuery"+now(),uuid=0,windowData={},exclude=/z-?index|font-?weight|opacity|zoom|line-?height/i,defaultView=document.defaultView||{};jQuery.extend({noConflict:function(deep){window.$=_$;if(deep)window.jQuery=_jQuery;return jQuery;},isFunction:function(fn){return!!fn&&typeof fn!="string"&&!fn.nodeName&&fn.constructor!=Array&&/^[\s[]?function/.test(fn+"");},isXMLDoc:function(elem){return elem.documentElement&&!elem.body||elem.tagName&&elem.ownerDocument&&!elem.ownerDocument.body;},globalEval:function(data){data=jQuery.trim(data);if(data){var head=document.getElementsByTagName("head")[0]||document.documentElement,script=document.createElement("script");script.type="text/javascript";if(jQuery.browser.msie)script.text=data;else
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this.options.curAnim)if(this.options.curAnim[i]!==true)done=false;if(done){if(this.options.display!=null){this.elem.style.overflow=this.options.overflow;this.elem.style.display=this.options.display;if(jQuery.css(this.elem,"display")=="none")this.elem.style.display="block";}if(this.options.hide)this.elem.style.display="none";if(this.options.hide||this.options.show)for(var p in this.options.curAnim)jQuery.attr(this.elem.style,p,this.options.orig[p]);}if(done)this.options.complete.call(this.elem);return false;}else{var n=t-this.startTime;this.state=n/this.options.duration;this.pos=jQuery.easing[this.options.easing||(jQuery.easing.swing?"swing":"linear")](this.state,n,0,1,this.options.duration);this.now=this.start+((this.end-this.start)*this.pos);this.update();}return true;}};jQuery.extend(jQuery.fx,{speeds:{slow:600,fast:200,def:400},step:{scrollLeft:function(fx){fx.elem.scrollLeft=fx.now;},scrollTop:function(fx){fx.elem.scrollTop=fx.now;},opacity:function(fx){jQuery.attr(fx.elem.style,"opacity",fx.now);},_default:function(fx){fx.elem.style[fx.prop]=fx.now+fx.unit;}}});jQuery.fn.offset=function(){var left=0,top=0,elem=this[0],results;if(elem)with(jQuery.browser){var parent=elem.parentNode,offsetChild=elem,offsetParent=elem.offsetParent,doc=elem.ownerDocument,safari2=safari&&parseInt(version)<522&&!/adobeair/i.test(userAgent),css=jQuery.curCSS,fixed=css(elem,"position")=="fixed";if(elem.getBoundingClientRect){var box=elem.getBoundingClientRect();add(box.left+Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),box.top+Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));add(-doc.documentElement.clientLeft,-doc.documentElement.clientTop);}else{add(elem.offsetLeft,elem.offsetTop);while(offsetParent){add(offsetParent.offsetLeft,offsetParent.offsetTop);if(mozilla&&!/^t(able|d|h)$/i.test(offsetParent.tagName)||safari&&!safari2)border(offsetParent);if(!fixed&&css(offsetParent,"position")=="fixed")fixed=true;offsetChild=/^body$/i.test(offsetParent.tagName)?offsetChild:offsetParent;offsetParent=offsetParent.offsetParent;}while(parent&&parent.tagName&&!/^body|html$/i.test(parent.tagName)){if(!/^inline|table.*$/i.test(css(parent,"display")))add(-parent.scrollLeft,-parent.scrollTop);if(mozilla&&css(parent,"overflow")!="visible")border(parent);parent=parent.parentNode;}if((safari2&&(fixed||css(offsetChild,"position")=="absolute"))||(mozilla&&css(offsetChild,"position")!="absolute"))add(-doc.body.offsetLeft,-doc.body.offsetTop);if(fixed)add(Math.max(doc.documentElement.scrollLeft,doc.body.scrollLeft),Math.max(doc.documentElement.scrollTop,doc.body.scrollTop));}results={top:top,left:left};}function border(elem){add(jQuery.curCSS(elem,"borderLeftWidth",true),jQuery.curCSS(elem,"borderTopWidth",true));}function add(l,t){left+=parseInt(l,10)||0;top+=parseInt(t,10)||0;}return results;};jQuery.fn.extend({position:function(){var left=0,top=0,results;if(this[0]){var offsetParent=this.offsetParent(),offset=this.offset(),parentOffset=/^body|html$/i.test(offsetParent[0].tagName)?{top:0,left:0}:offsetParent.offset();offset.top-=num(this,'marginTop');offset.left-=num(this,'marginLeft');parentOffset.top+=num(offsetParent,'borderTopWidth');parentOffset.left+=num(offsetParent,'borderLeftWidth');results={top:offset.top-parentOffset.top,left:offset.left-parentOffset.left};}return results;},offsetParent:function(){var offsetParent=this[0].offsetParent;while(offsetParent&&(!/^body|html$/i.test(offsetParent.tagName)&&jQuery.css(offsetParent,'position')=='static'))offsetParent=offsetParent.offsetParent;return jQuery(offsetParent);}});jQuery.each(['Left','Top'],function(i,name){var method='scroll'+name;jQuery.fn[method]=function(val){if(!this[0])return;return val!=undefined?this.each(function(){this==window||this==document?window.scrollTo(!i?val:jQuery(window).scrollLeft(),i?val:jQuery(window).scrollTop()):this[method]=val;}):this[0]==window||this[0]==document?self[i?'pageYOffset':'pageXOffset']||jQuery.boxModel&&document.documentElement[method]||document.body[method]:this[0][method];};});jQuery.each(["Height","Width"],function(i,name){var tl=i?"Left":"Top",br=i?"Right":"Bottom";jQuery.fn["inner"+name]=function(){return this[name.toLowerCase()]()+num(this,"padding"+tl)+num(this,"padding"+br);};jQuery.fn["outer"+name]=function(margin){return this["inner"+name]()+num(this,"border"+tl+"Width")+num(this,"border"+br+"Width")+(margin?num(this,"margin"+tl)+num(this,"margin"+br):0);};});})();
================================================
FILE: doc/_build/html/_static/pygments.css
================================================
.hll { background-color: #ffffcc }
.c { color: #408090; font-style: italic } /* Comment */
.err { border: 1px solid #FF0000 } /* Error */
.k { color: #007020; font-weight: bold } /* Keyword */
.o { color: #666666 } /* Operator */
.cm { color: #408090; font-style: italic } /* Comment.Multiline */
.cp { color: #007020 } /* Comment.Preproc */
.c1 { color: #408090; font-style: italic } /* Comment.Single */
.cs { color: #408090; background-color: #fff0f0 } /* Comment.Special */
.gd { color: #A00000 } /* Generic.Deleted */
.ge { font-style: italic } /* Generic.Emph */
.gr { color: #FF0000 } /* Generic.Error */
.gh { color: #000080; font-weight: bold } /* Generic.Heading */
.gi { color: #00A000 } /* Generic.Inserted */
.go { color: #303030 } /* Generic.Output */
.gp { color: #c65d09; font-weight: bold } /* Generic.Prompt */
.gs { font-weight: bold } /* Generic.Strong */
.gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.gt { color: #0040D0 } /* Generic.Traceback */
.kc { color: #007020; font-weight: bold } /* Keyword.Constant */
.kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
.kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
.kp { color: #007020 } /* Keyword.Pseudo */
.kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
.kt { color: #902000 } /* Keyword.Type */
.m { color: #208050 } /* Literal.Number */
.s { color: #4070a0 } /* Literal.String */
.na { color: #4070a0 } /* Name.Attribute */
.nb { color: #007020 } /* Name.Builtin */
.nc { color: #0e84b5; font-weight: bold } /* Name.Class */
.no { color: #60add5 } /* Name.Constant */
.nd { color: #555555; font-weight: bold } /* Name.Decorator */
.ni { color: #d55537; font-weight: bold } /* Name.Entity */
.ne { color: #007020 } /* Name.Exception */
.nf { color: #06287e } /* Name.Function */
.nl { color: #002070; font-weight: bold } /* Name.Label */
.nn { color: #0e84b5; font-weight: bold } /* Name.Namespace */
.nt { color: #062873; font-weight: bold } /* Name.Tag */
.nv { color: #bb60d5 } /* Name.Variable */
.ow { color: #007020; font-weight: bold } /* Operator.Word */
.w { color: #bbbbbb } /* Text.Whitespace */
.mf { color: #208050 } /* Literal.Number.Float */
.mh { color: #208050 } /* Literal.Number.Hex */
.mi { color: #208050 } /* Literal.Number.Integer */
.mo { color: #208050 } /* Literal.Number.Oct */
.sb { color: #4070a0 } /* Literal.String.Backtick */
.sc { color: #4070a0 } /* Literal.String.Char */
.sd { color: #4070a0; font-style: italic } /* Literal.String.Doc */
.s2 { color: #4070a0 } /* Literal.String.Double */
.se { color: #4070a0; font-weight: bold } /* Literal.String.Escape */
.sh { color: #4070a0 } /* Literal.String.Heredoc */
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.ss { color: #517918 } /* Literal.String.Symbol */
.bp { color: #007020 } /* Name.Builtin.Pseudo */
.vc { color: #bb60d5 } /* Name.Variable.Class */
.vg { color: #bb60d5 } /* Name.Variable.Global */
.vi { color: #bb60d5 } /* Name.Variable.Instance */
.il { color: #208050 } /* Literal.Number.Integer.Long */
================================================
FILE: doc/_build/html/_static/searchtools.js
================================================
/*
* searchtools.js
* ~~~~~~~~~~~~~~
*
* Sphinx JavaScript utilties for the full-text search.
*
* :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
/**
* helper function to return a node containing the
* search summary for a given text. keywords is a list
* of stemmed words, hlwords is the list of normal, unstemmed
* words. the first one is used to find the occurance, the
* latter for highlighting it.
*/
jQuery.makeSearchSummary = function(text, keywords, hlwords) {
var textLower = text.toLowerCase();
var start = 0;
$.each(keywords, function() {
var i = textLower.indexOf(this.toLowerCase());
if (i > -1)
start = i;
});
start = Math.max(start - 120, 0);
var excerpt = ((start > 0) ? '...' : '') +
$.trim(text.substr(start, 240)) +
((start + 240 - text.length) ? '...' : '');
var rv = $('<div class="context"></div>').text(excerpt);
$.each(hlwords, function() {
rv = rv.highlightText(this, 'highlight');
});
return rv;
}
/**
* Porter Stemmer
*/
var PorterStemmer = function() {
var step2list = {
ational: 'ate',
tional: 'tion',
enci: 'ence',
anci: 'ance',
izer: 'ize',
bli: 'ble',
alli: 'al',
entli: 'ent',
eli: 'e',
ousli: 'ous',
ization: 'ize',
ation: 'ate',
ator: 'ate',
alism: 'al',
iveness: 'ive',
fulness: 'ful',
ousness: 'ous',
aliti: 'al',
iviti: 'ive',
biliti: 'ble',
logi: 'log'
};
var step3list = {
icate: 'ic',
ative: '',
alize: 'al',
iciti: 'ic',
ical: 'ic',
ful: '',
ness: ''
};
var c = "[^aeiou]"; // consonant
var v = "[aeiouy]"; // vowel
var C = c + "[^aeiouy]*"; // consonant sequence
var V = v + "[aeiou]*"; // vowel sequence
var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0
var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1
var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1
var s_v = "^(" + C + ")?" + v; // vowel in stem
this.stemWord = function (w) {
var stem;
var suffix;
var firstch;
var origword = w;
if (w.length < 3)
return w;
var re;
var re2;
var re3;
var re4;
firstch = w.substr(0,1);
if (firstch == "y")
w = firstch.toUpperCase() + w.substr(1);
// Step 1a
re = /^(.+?)(ss|i)es$/;
re2 = /^(.+?)([^s])s$/;
if (re.test(w))
w = w.replace(re,"$1$2");
else if (re2.test(w))
w = w.replace(re2,"$1$2");
// Step 1b
re = /^(.+?)eed$/;
re2 = /^(.+?)(ed|ing)$/;
if (re.test(w)) {
var fp = re.exec(w);
re = new RegExp(mgr0);
if (re.test(fp[1])) {
re = /.$/;
w = w.replace(re,"");
}
}
else if (re2.test(w)) {
var fp = re2.exec(w);
stem = fp[1];
re2 = new RegExp(s_v);
if (re2.test(stem)) {
w = stem;
re2 = /(at|bl|iz)$/;
re3 = new RegExp("([^aeiouylsz])\\1$");
re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
if (re2.test(w))
w = w + "e";
else if (re3.test(w)) {
re = /.$/;
w = w.replace(re,"");
}
else if (re4.test(w))
w = w + "e";
}
}
// Step 1c
re = /^(.+?)y$/;
if (re.test(w)) {
var fp = re.exec(w);
stem = fp[1];
re = new RegExp(s_v);
if (re.test(stem))
w = stem + "i";
}
// Step 2
re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
if (re.test(w)) {
var fp = re.exec(w);
stem = fp[1];
suffix = fp[2];
re = new RegExp(mgr0);
if (re.test(stem))
w = stem + step2list[suffix];
}
// Step 3
re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
if (re.test(w)) {
var fp = re.exec(w);
stem = fp[1];
suffix = fp[2];
re = new RegExp(mgr0);
if (re.test(stem))
w = stem + step3list[suffix];
}
// Step 4
re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
re2 = /^(.+?)(s|t)(ion)$/;
if (re.test(w)) {
var fp = re.exec(w);
stem = fp[1];
re = new RegExp(mgr1);
if (re.test(stem))
w = stem;
}
else if (re2.test(w)) {
var fp = re2.exec(w);
stem = fp[1] + fp[2];
re2 = new RegExp(mgr1);
if (re2.test(stem))
w = stem;
}
// Step 5
re = /^(.+?)e$/;
if (re.test(w)) {
var fp = re.exec(w);
stem = fp[1];
re = new RegExp(mgr1);
re2 = new RegExp(meq1);
re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
w = stem;
}
re = /ll$/;
re2 = new RegExp(mgr1);
if (re.test(w) && re2.test(w)) {
re = /.$/;
w = w.replace(re,"");
}
// and turn initial Y back to y
if (firstch == "y")
w = firstch.toLowerCase() + w.substr(1);
return w;
}
}
/**
* Search Module
*/
var Search = {
_index : null,
_queued_query : null,
_pulse_status : -1,
init : function() {
var params = $.getQueryParameters();
if (params.q) {
var query = params.q[0];
$('input[name="q"]')[0].value = query;
this.performSearch(query);
}
},
/**
* Sets the index
*/
setIndex : function(index) {
var q;
this._index = index;
if ((q = this._queued_query) !== null) {
this._queued_query = null;
Search.query(q);
}
},
hasIndex : function() {
return this._index !== null;
},
deferQuery : function(query) {
this._queued_query = query;
},
stopPulse : function() {
this._pulse_status = 0;
},
startPulse : function() {
if (this._pulse_status >= 0)
return;
function pulse() {
Search._pulse_status = (Search._pulse_status + 1) % 4;
var dotString = '';
for (var i = 0; i < Search._pulse_status; i++)
dotString += '.';
Search.dots.text(dotString);
if (Search._pulse_status > -1)
window.setTimeout(pulse, 500);
};
pulse();
},
/**
* perform a search for something
*/
performSearch : function(query) {
// create the required interface elements
this.out = $('#search-results');
this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
this.dots = $('<span></span>').appendTo(this.title);
this.status = $('<p style="display: none"></p>').appendTo(this.out);
this.output = $('<ul class="search"/>').appendTo(this.out);
$('#search-progress').text(_('Preparing search...'));
this.startPulse();
// index already loaded, the browser was quick!
if (this.hasIndex())
this.query(query);
else
this.deferQuery(query);
},
query : function(query) {
var stopwords = ['and', 'then', 'into', 'it', 'as', 'are', 'in',
'if', 'for', 'no', 'there', 'their', 'was', 'is',
'be', 'to', 'that', 'but', 'they', 'not', 'such',
'with', 'by', 'a', 'on', 'these', 'of', 'will',
'this', 'near', 'the', 'or', 'at'];
// stem the searchterms and add them to the correct list
var stemmer = new PorterStemmer();
var searchterms = [];
var excluded = [];
var hlterms = [];
var tmp = query.split(/\s+/);
var object = (tmp.length == 1) ? tmp[0].toLowerCase() : null;
for (var i = 0; i < tmp.length; i++) {
if ($u.indexOf(stopwords, tmp[i]) != -1 || tmp[i].match(/^\d+$/)) {
// skip this word
continue;
}
// stem the word
var word = stemmer.stemWord(tmp[i]).toLowerCase();
// select the correct list
if (word[0] == '-') {
var toAppend = excluded;
word = word.substr(1);
}
else {
var toAppend = searchterms;
hlterms.push(tmp[i].toLowerCase());
}
// only add if not already in the list
if (!$.contains(toAppend, word))
toAppend.push(word);
};
var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
console.debug('SEARCH: searching for:');
console.info('required: ', searchterms);
console.info('excluded: ', excluded);
// prepare search
var filenames = this._index.filenames;
var titles = this._index.titles;
var terms = this._index.terms;
var descrefs = this._index.descrefs;
var modules = this._index.modules;
var desctypes = this._index.desctypes;
var fileMap = {};
var files = null;
var objectResults = [];
var regularResults = [];
$('#search-progress').empty();
// lookup as object
if (object != null) {
for (var module in modules) {
if (module.indexOf(object) > -1) {
fn = modules[module];
descr = _('module, in ') + titles[fn];
objectResults.push([filenames[fn], module, '#module-'+module, descr]);
}
}
for (var prefix in descrefs) {
for (var name in descrefs[prefix]) {
var fullname = (prefix ? prefix + '.' : '') + name;
if (fullname.toLowerCase().indexOf(object) > -1) {
match = descrefs[prefix][name];
descr = desctypes[match[1]] + _(', in ') + titles[match[0]];
objectResults.push([filenames[match[0]], fullname, '#'+fullname, descr]);
}
}
}
}
// sort results descending
objectResults.sort(function(a, b) {
return (a[1] > b[1]) ? -1 : ((a[1] < b[1]) ? 1 : 0);
});
// perform the search on the required terms
for (var i = 0; i < searchterms.length; i++) {
var word = searchterms[i];
// no match but word was a required one
if ((files = terms[word]) == null)
break;
if (files.length == undefined) {
files = [files];
}
// create the mapping
for (var j = 0; j < files.length; j++) {
var file = files[j];
if (file in fileMap)
fileMap[file].push(word);
else
fileMap[file] = [word];
}
}
// now check if the files don't contain excluded terms
for (var file in fileMap) {
var valid = true;
// check if all requirements are matched
if (fileMap[file].length != searchterms.length)
continue;
// ensure that none of the excluded terms is in the
// search result.
for (var i = 0; i < excluded.length; i++) {
if (terms[excluded[i]] == file ||
$.contains(terms[excluded[i]] || [], file)) {
valid = false;
break;
}
}
// if we have still a valid result we can add it
// to the result list
if (valid)
regularResults.push([filenames[file], titles[file], '', null]);
}
// delete unused variables in order to not waste
// memory until list is retrieved completely
delete filenames, titles, terms;
// now sort the regular results descending by title
regularResults.sort(function(a, b) {
var left = a[1].toLowerCase();
var right = b[1].toLowerCase();
return (left > right) ? -1 : ((left < right) ? 1 : 0);
});
// combine both
var results = regularResults.concat(objectResults);
// print the results
var resultCount = results.length;
function displayNextItem() {
// results left, load the summary and display it
if (results.length) {
var item = results.pop();
var listItem = $('<li style="display:none"></li>');
listItem.append($('<a/>').attr(
'href',
item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
highlightstring + item[2]).html(item[1]));
if (item[3]) {
listItem.append($('<span> (' + item[3] + ')</span>'));
Search.output.append(listItem);
listItem.slideDown(5, function() {
displayNextItem();
});
} else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
$.get('_sources/' + item[0] + '.txt', function(data) {
listItem.append($.makeSearchSummary(data, searchterms, hlterms));
Search.output.append(listItem);
listItem.slideDown(5, function() {
displayNextItem();
});
});
} else {
// no source available, just display title
Search.output.append(listItem);
listItem.slideDown(5, function() {
displayNextItem();
});
}
}
// search finished, update title and status message
else {
Search.stopPulse();
Search.title.text(_('Search Results'));
if (!resultCount)
Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
else
Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
Search.status.fadeIn(500);
}
}
displayNextItem();
}
}
$(document).ready(function() {
Search.init();
});
================================================
FILE: doc/_build/html/_static/underscore.js
================================================
(function(){var j=this,n=j._,i=function(a){this._wrapped=a},m=typeof StopIteration!=="undefined"?StopIteration:"__break__",b=j._=function(a){return new i(a)};if(typeof exports!=="undefined")exports._=b;var k=Array.prototype.slice,o=Array.prototype.unshift,p=Object.prototype.toString,q=Object.prototype.hasOwnProperty,r=Object.prototype.propertyIsEnumerable;b.VERSION="0.5.5";b.each=function(a,c,d){try{if(a.forEach)a.forEach(c,d);else if(b.isArray(a)||b.isArguments(a))for(var e=0,f=a.length;e<f;e++)c.call(d,
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<h2 id="A">A</h2>
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<dt><a href="ref.html#potrace.Curve.adaptive">adaptive (potrace.Curve attribute)</a></dt>
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<h2 id="B">B</h2>
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<dt><a href="ref.html#potrace.BezierSegment.is_corner">is_corner (potrace.BezierSegment attribute)</a></dt>
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<dt><a href="ref.html#potrace.CornerSegment.is_corner">(potrace.CornerSegment attribute)</a></dt>
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<h2 id="P">P</h2>
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<dt><a href="ref.html#potrace.Path">Path (class in potrace)</a></dt>
<dt><a href="ref.html#module-potrace">potrace (module)</a></dt>
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<dt><a href="ref.html#potrace.potracelib_version">potracelib_version() (in module potrace)</a></dt>
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<h2 id="R">R</h2>
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<dt><a href="ref.html#potrace.Curve.regular">regular (potrace.Curve attribute)</a></dt>
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<h2 id="S">S</h2>
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<h2 id="T">T</h2>
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<dt><a href="ref.html#potrace.Curve.tesselate">tesselate() (potrace.Curve method)</a></dt>
<dt><a href="ref.html#potrace.Bitmap.trace">trace() (potrace.Bitmap method)</a></dt>
<dt><a href="ref.html#potrace.TURNPOLICY_BLACK">TURNPOLICY_BLACK (in module potrace)</a></dt>
<dt><a href="ref.html#potrace.TURNPOLICY_LEFT">TURNPOLICY_LEFT (in module potrace)</a></dt>
<dt><a href="ref.html#potrace.TURNPOLICY_MAJORITY">TURNPOLICY_MAJORITY (in module potrace)</a></dt>
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<dt><a href="ref.html#potrace.TURNPOLICY_MINORITY">TURNPOLICY_MINORITY (in module potrace)</a></dt>
<dt><a href="ref.html#potrace.TURNPOLICY_RANDOM">TURNPOLICY_RANDOM (in module potrace)</a></dt>
<dt><a href="ref.html#potrace.TURNPOLICY_RIGHT">TURNPOLICY_RIGHT (in module potrace)</a></dt>
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<h1>pypotrace documentation<a class="headerlink" href="#pypotrace-documentation" title="Permalink to this headline">¶</a></h1>
<p>pypotrace are Python bindings for <a class="reference external" href="http://potrace.sourceforge.net/">potrace</a>, an utility to transform bitmap
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# Sphinx inventory version 1
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potrace mod ref.html
potrace.TURNPOLICY_MINORITY data ref.html
potrace.CornerSegment class ref.html
potrace.CornerSegment.c attribute ref.html
potrace.TURNPOLICY_BLACK data ref.html
potrace.BezierSegment.c1 attribute ref.html
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potrace.potracelib_version function ref.html
potrace.BezierSegment.end_point attribute ref.html
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potrace.CornerSegment.is_corner attribute ref.html
potrace.TURNPOLICY_WHITE data ref.html
potrace.Bitmap.trace method ref.html
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potrace.Curve.tesselate method ref.html
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potrace.TURNPOLICY_MAJORITY data ref.html
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potrace.Path.curves_tree attribute ref.html
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potrace.BezierSegment.is_corner attribute ref.html
potrace.Curve class ref.html
potrace.BezierSegment.c2 attribute ref.html
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<div class="section" id="module-potrace">
<h1><a title="" class="reference external" href="#module-potrace"><tt class="xref docutils literal"><span class="pre">potrace</span></tt></a> – API reference<a class="headerlink" href="#module-potrace" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt id="potrace.potracelib_version">
<tt class="descclassname">potrace.</tt><tt class="descname">potracelib_version</tt><big>(</big><big>)</big><a class="headerlink" href="#potrace.potracelib_version" title="Permalink to this definition">¶</a></dt>
<dd>Return the potrace library version.</dd></dl>
<p>Constants for <a title="potrace.Bitmap.trace" class="reference internal" href="#potrace.Bitmap.trace"><tt class="xref docutils literal"><span class="pre">Bitmap.trace()</span></tt></a> <em>turnpolicy</em> parameter:</p>
<dl class="data">
<dt id="potrace.TURNPOLICY_BLACK">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_BLACK</tt><a class="headerlink" href="#potrace.TURNPOLICY_BLACK" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_WHITE">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_WHITE</tt><a class="headerlink" href="#potrace.TURNPOLICY_WHITE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_LEFT">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_LEFT</tt><a class="headerlink" href="#potrace.TURNPOLICY_LEFT" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_RIGHT">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_RIGHT</tt><a class="headerlink" href="#potrace.TURNPOLICY_RIGHT" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_MINORITY">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_MINORITY</tt><a class="headerlink" href="#potrace.TURNPOLICY_MINORITY" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_MAJORITY">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_MAJORITY</tt><a class="headerlink" href="#potrace.TURNPOLICY_MAJORITY" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="data">
<dt id="potrace.TURNPOLICY_RANDOM">
<tt class="descclassname">potrace.</tt><tt class="descname">TURNPOLICY_RANDOM</tt><a class="headerlink" href="#potrace.TURNPOLICY_RANDOM" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<div class="section" id="bitmap-objects">
<h2>Bitmap objects<a class="headerlink" href="#bitmap-objects" title="Permalink to this headline">¶</a></h2>
<p>You start a trace by creating a <a title="potrace.Bitmap" class="reference internal" href="#potrace.Bitmap"><tt class="xref docutils literal"><span class="pre">Bitmap</span></tt></a> instance, e.g.:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">from</span> <span class="nn">potrace</span> <span class="kn">import</span> <span class="n">Bitmap</span>
<span class="c"># Initialize data, for example convert a PIL image to a numpy array</span>
<span class="c"># [...]</span>
<span class="n">bitmap</span> <span class="o">=</span> <span class="n">Bitmap</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">bitmap</span><span class="o">.</span><span class="n">trace</span><span class="p">()</span>
</pre></div>
</div>
<dl class="class">
<dt id="potrace.Bitmap">
<em class="property">class </em><tt class="descclassname">potrace.</tt><tt class="descname">Bitmap</tt><big>(</big><em>data</em><big>)</big><a class="headerlink" href="#potrace.Bitmap" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a Bitmap instance.</p>
<p>The constructor <em>data</em> argument should be a 2D numpy array containing pixel
data. Pixels are only interpreted as zero or nonzero.</p>
<dl class="method">
<dt id="potrace.Bitmap.trace">
<tt class="descname">trace</tt><big>(</big><span class="optional">[</span><em>turdsize</em>, <em>turnpolicy</em>, <em>alphamax</em>, <em>opticurve</em>, <em>opttolerance</em>, <em>progress_func</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#potrace.Bitmap.trace" title="Permalink to this definition">¶</a></dt>
<dd><p>Trace the bitmap and wrap the result in a <a title="potrace.Path" class="reference internal" href="#potrace.Path"><tt class="xref docutils literal"><span class="pre">Path</span></tt></a> instance.</p>
<p>The <em>turdsize</em> parameter can be used to “despeckle” the bitmap to be
traced, by removing all curves whose enclosed area is below the given
threshold. The current default for the <em>turdsize</em> parameter is 2; its
useful range is from 0 to infinity.</p>
<p>The <em>turnpolicy</em> parameter determines how to resolve ambiguities during
decomposition of bitmaps into paths. The possible choices for the
<em>turnpolicy</em> parameter are:</p>
<ul class="simple">
<li><a title="potrace.TURNPOLICY_BLACK" class="reference internal" href="#potrace.TURNPOLICY_BLACK"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_BLACK</span></tt></a>: prefers to connect black
(foreground) components.</li>
<li><a title="potrace.TURNPOLICY_WHITE" class="reference internal" href="#potrace.TURNPOLICY_WHITE"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_WHITE</span></tt></a>: prefers to connect white
(background) components.</li>
<li><a title="potrace.TURNPOLICY_LEFT" class="reference internal" href="#potrace.TURNPOLICY_LEFT"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_LEFT</span></tt></a>: always take a left turn.</li>
<li><a title="potrace.TURNPOLICY_RIGHT" class="reference internal" href="#potrace.TURNPOLICY_RIGHT"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_RIGHT</span></tt></a>: always take a right turn.</li>
<li><a title="potrace.TURNPOLICY_MINORITY" class="reference internal" href="#potrace.TURNPOLICY_MINORITY"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_MINORITY</span></tt></a>: prefers to connect the color
(black or white) that occurs least frequently in a local neighborhood
of the current position.</li>
<li><a title="potrace.TURNPOLICY_MAJORITY" class="reference internal" href="#potrace.TURNPOLICY_MAJORITY"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_MAJORITY</span></tt></a>: prefers to connect the color
(black or white) that occurs most frequently in a local neighborhood
of the current position.</li>
<li><a title="potrace.TURNPOLICY_RANDOM" class="reference internal" href="#potrace.TURNPOLICY_RANDOM"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_RANDOM</span></tt></a>: choose randomly.</li>
</ul>
<p>The current default policy is <a title="potrace.TURNPOLICY_MINORITY" class="reference internal" href="#potrace.TURNPOLICY_MINORITY"><tt class="xref docutils literal"><span class="pre">TURNPOLICY_MINORITY</span></tt></a>, which tends
to keep visual lines connected.</p>
<p>The <em>alphamax</em> parameter is a threshold for the detection of corners.
It controls the smoothness of the traced curve. The current default is
1.0; useful range of this parameter is from 0.0 (polygon) to 1.3333
(no corners).</p>
<p>The <em>opticurve</em> parameter is a boolean flag that controls whether
Potrace will attempt to “simplify” the final curve by reducing the
number of Bezier curve segments. Opticurve=1 turns on optimization,
and <em>opticurve=0</em> turns it off. The current default is on.</p>
<p>The <em>opttolerance</em> parameter defines the amount of error allowed in
this simplification. The current default is 0.2. Larger values tend to
decrease the number of segments, at the expense of less accuracy. The
useful range is from 0 to infinity, although in practice one would
hardly choose values greater than 1 or so. For most purposes, the
default value is a good tradeoff between space and accuracy.</p>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="path-objects">
<h2>Path objects<a class="headerlink" href="#path-objects" title="Permalink to this headline">¶</a></h2>
<p><a title="potrace.Bitmap.trace" class="reference internal" href="#potrace.Bitmap.trace"><tt class="xref docutils literal"><span class="pre">Bitmap.trace()</span></tt></a> returns a <a title="potrace.Path" class="reference internal" href="#potrace.Path"><tt class="xref docutils literal"><span class="pre">Path</span></tt></a> instance, containing the whole
vectorized image.</p>
<dl class="class">
<dt id="potrace.Path">
<em class="property">class </em><tt class="descclassname">potrace.</tt><tt class="descname">Path</tt><a class="headerlink" href="#potrace.Path" title="Permalink to this definition">¶</a></dt>
<dd><p>Path objects store a list of <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> objects.</p>
<dl class="attribute">
<dt id="potrace.Path.curves">
<tt class="descname">curves</tt><a class="headerlink" href="#potrace.Path.curves" title="Permalink to this definition">¶</a></dt>
<dd>The list of <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> objects composing the path.</dd></dl>
<dl class="attribute">
<dt id="potrace.Path.curves_tree">
<tt class="descname">curves_tree</tt><a class="headerlink" href="#potrace.Path.curves_tree" title="Permalink to this definition">¶</a></dt>
<dd>The top level <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> objects in the tree representation of the
path.</dd></dl>
</dd></dl>
</div>
<div class="section" id="curve-objects">
<h2>Curve objects<a class="headerlink" href="#curve-objects" title="Permalink to this headline">¶</a></h2>
<p><a title="potrace.Path" class="reference internal" href="#potrace.Path"><tt class="xref docutils literal"><span class="pre">Path</span></tt></a> objects are made of one or more of <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> objects,
which are themselves composed of a list of segments.</p>
<p>Curves can have children curves. Children curves are guaranteed to be enclosed
by their parent.</p>
<dl class="class">
<dt id="potrace.Curve">
<em class="property">class </em><tt class="descclassname">potrace.</tt><tt class="descname">Curve</tt><a class="headerlink" href="#potrace.Curve" title="Permalink to this definition">¶</a></dt>
<dd><p>Curve objects represent closed, non intersecting curves.</p>
<p>Curves are made of a list of <a title="potrace.BezierSegment" class="reference internal" href="#potrace.BezierSegment"><tt class="xref docutils literal"><span class="pre">BezierSegment</span></tt></a> and
<a title="potrace.CornerSegment" class="reference internal" href="#potrace.CornerSegment"><tt class="xref docutils literal"><span class="pre">CornerSegment</span></tt></a> objects connected to each other.</p>
<dl class="attribute">
<dt id="potrace.Curve.regular">
<tt class="descname">regular</tt><a class="headerlink" href="#potrace.Curve.regular" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="potrace.Curve.adaptive">
<tt class="descname">adaptive</tt><a class="headerlink" href="#potrace.Curve.adaptive" title="Permalink to this definition">¶</a></dt>
<dd>Constants for the <a title="potrace.Curve.tesselate" class="reference internal" href="#potrace.Curve.tesselate"><tt class="xref docutils literal"><span class="pre">tesselate()</span></tt></a> method.</dd></dl>
<dl class="attribute">
<dt id="potrace.Curve.start_point">
<tt class="descname">start_point</tt><a class="headerlink" href="#potrace.Curve.start_point" title="Permalink to this definition">¶</a></dt>
<dd>The curve starting point.</dd></dl>
<dl class="attribute">
<dt id="potrace.Curve.segments">
<tt class="descname">segments</tt><a class="headerlink" href="#potrace.Curve.segments" title="Permalink to this definition">¶</a></dt>
<dd>The list of segment objects that compose the curve.</dd></dl>
<dl class="attribute">
<dt id="potrace.Curve.children">
<tt class="descname">children</tt><a class="headerlink" href="#potrace.Curve.children" title="Permalink to this definition">¶</a></dt>
<dd>The list of children curves.</dd></dl>
<dl class="method">
<dt id="potrace.Curve.tesselate">
<tt class="descname">tesselate</tt><big>(</big><span class="optional">[</span><em>method</em>, <em>res</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#potrace.Curve.tesselate" title="Permalink to this definition">¶</a></dt>
<dd><p>Tesselate the curve.</p>
<p>Returns a numpy array containing the curve vertices. The <em>method</em>
argument is for selecting the bezier segments tesselation method:
<a title="potrace.Curve.adaptive" class="reference internal" href="#potrace.Curve.adaptive"><tt class="xref docutils literal"><span class="pre">adaptive</span></tt></a> (the default) uses an adaptive tesselation algorithm
and <a title="potrace.Curve.regular" class="reference internal" href="#potrace.Curve.regular"><tt class="xref docutils literal"><span class="pre">regular</span></tt></a> divides the segments with a fixed number of steps
(controled by the <em>res</em> argument).</p>
</dd></dl>
</dd></dl>
<p>There are two types of segments, <a title="potrace.BezierSegment" class="reference internal" href="#potrace.BezierSegment"><tt class="xref docutils literal"><span class="pre">BezierSegment</span></tt></a>:</p>
<img alt="_images/bezier.png" src="_images/bezier.png" />
<p>and <a title="potrace.CornerSegment" class="reference internal" href="#potrace.CornerSegment"><tt class="xref docutils literal"><span class="pre">CornerSegment</span></tt></a>:</p>
<img alt="_images/corner.png" src="_images/corner.png" />
<p>Since curves are always closed, segments only store their control points and
end point; their starting point is always the previous segment’s end point. You
can check the <tt class="xref docutils literal"><span class="pre">is_corner</span></tt> attribute to determine the segments type easily.</p>
<dl class="class">
<dt id="potrace.BezierSegment">
<em class="property">class </em><tt class="descclassname">potrace.</tt><tt class="descname">BezierSegment</tt><a class="headerlink" href="#potrace.BezierSegment" title="Permalink to this definition">¶</a></dt>
<dd><p>Represents a Bezier segment in a <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> object.</p>
<dl class="attribute">
<dt id="potrace.BezierSegment.c1">
<tt class="descname">c1</tt><a class="headerlink" href="#potrace.BezierSegment.c1" title="Permalink to this definition">¶</a></dt>
<dd>The segment’s starting point control point.</dd></dl>
<dl class="attribute">
<dt id="potrace.BezierSegment.c2">
<tt class="descname">c2</tt><a class="headerlink" href="#potrace.BezierSegment.c2" title="Permalink to this definition">¶</a></dt>
<dd>The segment’s end point control point.</dd></dl>
<dl class="attribute">
<dt id="potrace.BezierSegment.end_point">
<tt class="descname">end_point</tt><a class="headerlink" href="#potrace.BezierSegment.end_point" title="Permalink to this definition">¶</a></dt>
<dd>The segment’s end point.</dd></dl>
<dl class="attribute">
<dt id="potrace.BezierSegment.is_corner">
<tt class="descname">is_corner</tt><a class="headerlink" href="#potrace.BezierSegment.is_corner" title="Permalink to this definition">¶</a></dt>
<dd>Always <tt class="xref xref docutils literal"><span class="pre">False</span></tt>.</dd></dl>
</dd></dl>
<dl class="class">
<dt id="potrace.CornerSegment">
<em class="property">class </em><tt class="descclassname">potrace.</tt><tt class="descname">CornerSegment</tt><a class="headerlink" href="#potrace.CornerSegment" title="Permalink to this definition">¶</a></dt>
<dd><p>Represents a corner segment in a <a title="potrace.Curve" class="reference internal" href="#potrace.Curve"><tt class="xref docutils literal"><span class="pre">Curve</span></tt></a> object.</p>
<dl class="attribute">
<dt id="potrace.CornerSegment.c">
<tt class="descname">c</tt><a class="headerlink" href="#potrace.CornerSegment.c" title="Permalink to this definition">¶</a></dt>
<dd>The segment’s corner point.</dd></dl>
<dl class="attribute">
<dt id="potrace.CornerSegment.end_point">
<tt class="descname">end_point</tt><a class="headerlink" href="#potrace.CornerSegment.end_point" title="Permalink to this definition">¶</a></dt>
<dd>The segment’s end point.</dd></dl>
<dl class="attribute">
<dt id="potrace.CornerSegment.is_corner">
<tt class="descname">is_corner</tt><a class="headerlink" href="#potrace.CornerSegment.is_corner" title="Permalink to this definition">¶</a></dt>
<dd>Always <tt class="xref xref docutils literal"><span class="pre">True</span></tt>.</dd></dl>
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gitextract_onmz_mbu/
├── .gitignore
├── CONTRIBUTORS
├── GPL
├── LICENSE
├── MANIFEST.in
├── README.rst
├── build.py
├── doc/
│ ├── Makefile
│ ├── _build/
│ │ ├── doctrees/
│ │ │ ├── environment.pickle
│ │ │ ├── index.doctree
│ │ │ ├── ref.doctree
│ │ │ └── tutorial.doctree
│ │ └── html/
│ │ ├── .buildinfo
│ │ ├── _sources/
│ │ │ ├── index.txt
│ │ │ ├── ref.txt
│ │ │ └── tutorial.txt
│ │ ├── _static/
│ │ │ ├── basic.css
│ │ │ ├── default.css
│ │ │ ├── doctools.js
│ │ │ ├── jquery.js
│ │ │ ├── pygments.css
│ │ │ ├── searchtools.js
│ │ │ └── underscore.js
│ │ ├── genindex.html
│ │ ├── index.html
│ │ ├── modindex.html
│ │ ├── objects.inv
│ │ ├── ref.html
│ │ ├── search.html
│ │ ├── searchindex.js
│ │ └── tutorial.html
│ ├── conf.py
│ ├── index.rst
│ ├── make.bat
│ ├── ref.rst
│ └── tutorial.rst
├── potrace/
│ ├── .gitignore
│ ├── __init__.py
│ ├── _potrace.pxd
│ ├── _potrace.pyx
│ ├── agg/
│ │ ├── __init__.py
│ │ ├── basics.pxd
│ │ ├── curves.pxd
│ │ └── curves.pyx
│ ├── bezier.pxd
│ └── bezier.pyx
├── pyproject.toml
└── tests/
├── __init__.py
├── test_basic.py
└── test_bezier.py
SYMBOL INDEX (20 symbols across 6 files)
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function build (line 16) | def build(setup_kwargs):
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function test_errors (line 6) | def test_errors():
function test_trace (line 12) | def test_trace():
function test_tree (line 35) | def test_tree():
FILE: tests/test_bezier.py
function test_tesselate (line 71) | def test_tesselate():
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"preview": "cdef extern from \"agg2/agg_curves.h\":\n struct curve4_div \"agg::curve4_div\":\n void rewind(unsigned)\n int"
},
{
"path": "potrace/agg/curves.pyx",
"chars": 241,
"preview": "cimport potrace.agg.basics as agg\n\n\ncdef unsigned num_vertices(curve4_div *curve):\n cdef unsigned count = 0\n cdef "
},
{
"path": "potrace/bezier.pxd",
"chars": 118,
"preview": "cimport numpy as np\n\n\ncdef np.ndarray bezier(np.ndarray p, int steps=?)\ncdef np.ndarray adaptive_bezier(np.ndarray p)\n"
},
{
"path": "potrace/bezier.pyx",
"chars": 1800,
"preview": "cimport numpy as np\nfrom potrace.agg cimport curves as agg\n\nimport numpy as np\n\n\ncdef np.ndarray bezier(np.ndarray p_, i"
},
{
"path": "pyproject.toml",
"chars": 1169,
"preview": "[tool.poetry]\nname = \"potrace\"\nversion = \"0.3\"\ndescription = \"potrace Python bindings\"\nreadme = \"README.rst\"\nauthors = ["
},
{
"path": "tests/__init__.py",
"chars": 0,
"preview": ""
},
{
"path": "tests/test_basic.py",
"chars": 1260,
"preview": "from nose.tools import assert_raises, assert_equal\nimport numpy as np\nimport potrace\n\n\ndef test_errors():\n assert_rai"
},
{
"path": "tests/test_bezier.py",
"chars": 2590,
"preview": "import numpy as np\nimport potrace\nfrom PIL import Image\nfrom PIL import ImageDraw\n\n\nadaptive = \\\n[[ 13.31417446, 23.490"
}
]
// ... and 4 more files (download for full content)
About this extraction
This page contains the full source code of the flupke/pypotrace GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 50 files (235.4 KB), approximately 67.9k tokens, and a symbol index with 20 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.