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<img src="https://github.com/gadomski/antimeridian/blob/main/docs/img/complex-split.png?raw=true" style="width: 600px;" alt="Demonstration image" />

Fix shapes that cross the antimeridian. See the documentation for information about the underlying algorithm. Depends on shapely and numpy.

Can fix:

Usage

pip install antimeridian

Then:

import antimeridian

fixed = antimeridian.fix_geojson(geojson)

We also have some utilities to create bounding boxes and centroids from antimeridian-crossing polygons and multipolygons. See the documentation for a complete API reference.

Command line interface

Use the cli optional dependency to install the antimeridian CLI:

pip install 'antimeridian[cli]'
antimeridian fix input.json > output.json

Developing

Clone and install in editable mode with the development optional dependencies:

git clone https://github.com/gadomski/antimeridian
cd antimeridian
pip install -e '.[dev,docs]'

We use pytest for tests:

pytest

We use Sphinx for docs:

make -C docs html

Contributing

Github issues and pull requests, please and thank you!

License

Apache-2.0