Robust computational geometry predicates.
Project description
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
Project details
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