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Description:

robust 0.2.7

robust

In what follows python is an alias for python3.5 or pypy3.5
or any later version (python3.6, pypy3.6 and so on).
Installation
Install the latest pip & setuptools packages versions
python -m pip install --upgrade pip setuptools

User
Download and install the latest stable version from PyPI repository:
python -m pip install --upgrade robust

Developer
Download the latest version from GitHub repository
git clone https://github.com/lycantropos/robust.git
cd robust

Install
python setup.py install

Usage
>>> from robust import cocircular
>>> cocircular.determinant((0, 0), (2, 0), (0, 2), (1, 1))
8
>>> cocircular.determinant((0, 0), (2, 0), (0, 2), (3, 3))
-24
>>> cocircular.determinant((0, 0), (2, 0), (2, 2), (0, 2))
0
>>> from robust import parallelogram
>>> parallelogram.signed_area((0, 0), (2, 0), (0, 0), (0, 2))
4
>>> parallelogram.signed_area((0, 0), (0, 2), (0, 0), (2, 0))
-4
>>> parallelogram.signed_area((0, 0), (0, 2), (0, 0), (0, 2))
0
>>> from robust import projection
>>> projection.signed_length((0, 0), (2, 0), (0, 0), (2, 0))
4
>>> projection.signed_length((0, 0), (2, 0), (0, 0), (-2, 0))
-4
>>> projection.signed_length((0, 0), (2, 0), (0, 0), (0, 2))
0
>>> from robust.angular import Orientation, orientation
>>> orientation((0, 1), (0, 0), (1, 0)) is Orientation.CLOCKWISE
True
>>> orientation((1, 0), (0, 0), (2, 0)) is Orientation.COLLINEAR
True
>>> orientation((1, 0), (0, 0), (0, 1)) is Orientation.COUNTERCLOCKWISE
True
>>> from robust.angular import Kind, kind
>>> kind((0, 0), (1, 0), (2, 0)) is Kind.OBTUSE
True
>>> kind((0, 1), (0, 0), (1, 0)) is Kind.RIGHT
True
>>> kind((1, 0), (0, 0), (2, 0)) is Kind.ACUTE
True
>>> from robust.linear import SegmentsRelationship, segments_relationship
>>> segments_relationship(((0, 0), (1, 0)),
... ((2, 0), (3, 0))) is SegmentsRelationship.NONE
True
>>> segments_relationship(((0, 0), (1, 0)),
... ((1, 0), (2, 0))) is SegmentsRelationship.TOUCH
True
>>> segments_relationship(((0, 0), (1, 1)),
... ((0, 1), (1, 0))) is SegmentsRelationship.CROSS
True
>>> segments_relationship(((0, 0), (1, 0)),
... ((0, 0), (1, 0))) is SegmentsRelationship.OVERLAP
True

Development
Bumping version
Preparation
Install
bump2version.
Pre-release
Choose which version number category to bump following semver
specification.
Test bumping version
bump2version --dry-run --verbose $CATEGORY

where $CATEGORY is the target version number category name, possible
values are patch/minor/major.
Bump version
bump2version --verbose $CATEGORY

This will set version to major.minor.patch-alpha.
Release
Test bumping version
bump2version --dry-run --verbose release

Bump version
bump2version --verbose release

This will set version to major.minor.patch.
Running tests
Install dependencies
python -m pip install --force-reinstall -r requirements-tests.txt

Plain
pytest

Inside Docker container:

with CPython
docker-compose --file docker-compose.cpython.yml up

with PyPy
docker-compose --file docker-compose.pypy.yml up

Bash script (e.g. can be used in Git hooks):

with CPython
./run-tests.sh

or
./run-tests.sh cpython

with PyPy
./run-tests.sh pypy

PowerShell script (e.g. can be used in Git hooks):

with CPython
.\run-tests.ps1

or
.\run-tests.ps1 cpython

with PyPy
.\run-tests.ps1 pypy