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@thi.ng/geom-isec

npm version npm downloads Mastodon Follow

Note

This is one of 199 standalone projects, maintained as part of the @thi.ng/umbrella monorepo and anti-framework.

🚀 Please help me to work full-time on these projects by sponsoring me on GitHub. Thank you! ❤️

About

2D/3D shape intersection checks. This is a support package for @thi.ng/geom.

Type Circle Line Poly Ray Rect Tri
Circle
Line
Point
Ray
Rect

3D tests

Type AABB Plane Point Ray Sphere
AABB
Plane
Point
Ray
Sphere

Current implementations partially based on toxiclibs (Java) and 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-isec

ESM import:

import * as isec from "@thi.ng/geom-isec";

Browser ESM import:

<script type="module" src="https://esm.run/@thi.ng/geom-isec"></script>

JSDelivr documentation

For Node.js REPL:

const isec = await import("@thi.ng/geom-isec");

Package sizes (brotli'd, pre-treeshake): ESM: 3.26 KB

Dependencies

Note: @thi.ng/api is in most cases a type-only import (not used at runtime)

API

Generated API docs

import * as isec from "@thi.ng/geom-isec";

const res = isec.intersectLineLine([0, 0], [100, 50], [50, 100], [50, -100]);
// { type: 4, isec: [ 50, 25 ], alpha: 0.5, beta: 0.375, det: -20000 }

res.type === isec.IntersectionType.INTERSECT
// true

Authors

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

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

License

© 2013 - 2024 Karsten Schmidt // Apache License 2.0