wagyu 0.2.2

Python port of mapbox/wagyu library.

wagyu

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 wagyu

Developer

Download the latest version from GitHub repository

git clone https://github.com/lycantropos/wagyu.git
cd wagyu

Install setup dependencies:

python -m pip install --force-reinstall -r requirements-setup.txt

Install:

python setup.py install

Usage

>>> from wagyu.enums import PolygonKind
>>> from wagyu.linear_ring import LinearRing
>>> from wagyu.point import Point
>>> from wagyu.polygon import Multipolygon, Polygon
>>> from wagyu.wagyu import Wagyu
>>> lower_triangle = Polygon([LinearRing([Point(0, 0), Point(6, 0), Point(3, 3), Point(0, 0)])])
>>> upper_triangle = Polygon([LinearRing([Point(3, 1), Point(6, 4), Point(0, 4), Point(3, 1)])])
>>> wagyu = Wagyu()
>>> wagyu.add_polygon(lower_triangle, PolygonKind.SUBJECT)
True
>>> wagyu.add_polygon(upper_triangle, PolygonKind.CLIP)
True
>>> (wagyu.intersect()
...  == Multipolygon([Polygon([LinearRing([Point(3, 1), Point(4, 2), Point(3, 3), Point(2, 2), Point(3, 1)])])]))
True
>>> (wagyu.unite()
...  == Multipolygon([Polygon([LinearRing([Point(6, 0), Point(4, 2), Point(6, 4), Point(0, 4), Point(2, 2), Point(0, 0), Point(6, 0)])])]))
True
>>> (wagyu.symmetric_subtract()
...  == Multipolygon([Polygon([LinearRing([Point(4, 2), Point(3, 1), Point(2, 2), Point(0, 0), Point(6, 0), Point(4, 2)])]),
...                   Polygon([LinearRing([Point(4, 2), Point(6, 4), Point(0, 4), Point(2, 2), Point(3, 3), Point(4, 2)])])]))
True
>>> (wagyu.subtract()
...  == Multipolygon([Polygon([LinearRing([Point(6, 0), Point(4, 2), Point(3, 1), Point(2, 2), Point(0, 0), Point(6, 0)])])]))
True

for CPython original C++ implementation can be invoked by importing from _wagyu module instead.

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