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@thi.ng/geom-hull

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  • License Apache-2.0

Fast 2D convex hull (Graham Scan)

Package Exports

  • @thi.ng/geom-hull

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@thi.ng/geom-hull) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

geom-hull

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This project is part of the @thi.ng/umbrella monorepo.

About

Fast 2D convex hull (Graham Scan).

Current implementation is partially based on Clojure version of thi.ng/geom.

Status

STABLE - used in production

Search or submit any issues for this package

Installation

yarn add @thi.ng/geom-hull
// ES module
<script type="module" src="https://unpkg.com/@thi.ng/geom-hull?module" crossorigin></script>

// UMD
<script src="https://unpkg.com/@thi.ng/geom-hull/lib/index.umd.js" crossorigin></script>

Package sizes (gzipped, pre-treeshake): ESM: 433 bytes / CJS: 489 bytes / UMD: 598 bytes

Dependencies

Usage examples

Several demos in this repo's /examples directory are using this package.

A selection:

Screenshot Description Live demo Source
Convex hull & shape clipping of 2D polygons Demo Source

API

Generated API docs

import { grahamScan2 } from "@thi.ng/geom-hull";

grahamScan2([[0, 0], [50, 10], [100, 0], [80, 50], [100, 100], [50, 90], [0, 100]]);
// [ [ 0, 0 ], [ 100, 0 ], [ 100, 100 ], [ 0, 100 ] ]

Authors

Karsten Schmidt

If this project contributes to an academic publication, please cite it as:

@misc{thing-geom-hull,
  title = "@thi.ng/geom-hull",
  author = "Karsten Schmidt",
  note = "https://thi.ng/geom-hull",
  year = 2013
}

License

© 2013 - 2021 Karsten Schmidt // Apache Software License 2.0