2D/3D shape intersection checks
npm install @thi.ng/geom-isec
!npm downloads
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> This is one of 214 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
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- About
- 3D tests
- Status
- Installation
- Dependencies
- API
- Authors
- License
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 | ✓ | | | | ✓ | |
| 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.
STABLE - used in production
Search or submit any issues for this package
``bash`
yarn add @thi.ng/geom-isec
ESM import:
`ts`
import * as isec from "@thi.ng/geom-isec";
Browser ESM import:
`html`
For Node.js REPL:
`js`
const isec = await import("@thi.ng/geom-isec");
Package sizes (brotli'd, pre-treeshake): ESM: 3.27 KB
- @thi.ng/api
- @thi.ng/geom-closest-point
- @thi.ng/math
- @thi.ng/vectors
Note: @thi.ng/api is in _most_ cases a type-only import (not used at runtime)
`ts
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
`
If this project contributes to an academic publication, please cite it as:
`bibtex``
@misc{thing-geom-isec,
title = "@thi.ng/geom-isec",
author = "Karsten Schmidt",
note = "https://thi.ng/geom-isec",
year = 2013
}
© 2013 - 2026 Karsten Schmidt // Apache License 2.0