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! ❤️
Customizable nD polyline interpolation, re-sampling, splitting & nearest point computation. This is a support package for @thi.ng/geom.
Also includes an implementation of Douglas-Peucker polyline / polygon simplification.
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
yarn add @thi.ng/geom-resampleESM import:
import * as sample from "@thi.ng/geom-resample";Browser ESM import:
<script type="module" src="https://esm.run/@thi.ng/geom-resample"></script>For Node.js REPL:
const sample = await import("@thi.ng/geom-resample");Package sizes (brotli'd, pre-treeshake): ESM: 1.49 KB
- @thi.ng/api
- @thi.ng/checks
- @thi.ng/geom-closest-point
- @thi.ng/geom-isec
- @thi.ng/math
- @thi.ng/vectors
Note: @thi.ng/api is in most cases a type-only import (not used at runtime)
Two projects in this repo's /examples directory are using this package:
| Screenshot | Description | Live demo | Source |
|---|---|---|---|
 |
Animated, iterative polygon subdivisions & visualization | Demo | Source |
 |
Animated Voronoi diagram, cubic splines & SVG download | Demo | Source |
import { resample, simplify } from "@thi.ng/geom-resample";
// resample polygon w/ uniform distance
const pts = resample([[0,0], [100,0], [100,100], [0,100]], { dist: 25 }, true)
// [ [ 0, 0 ], [ 25, 0 ], [ 50, 0 ], [ 75, 0 ],
// [ 100, 0 ], [ 100, 25 ], [ 100, 50 ], [ 100, 75 ],
// [ 100, 100 ], [ 75, 100 ], [ 50, 100 ], [ 25, 100 ],
// [ 0, 100 ], [ 0, 75 ], [ 0, 50 ], [ 0, 25 ] ]
// simply polygon
// (epsilon = 0 only removes co-linear points, increase if necessary)
simplify(pts, 0, true)
// [ [ 0, 0 ], [ 100, 0 ], [ 100, 100 ], [ 0, 100 ] ]If this project contributes to an academic publication, please cite it as:
@misc{thing-geom-resample,
title = "@thi.ng/geom-resample",
author = "Karsten Schmidt",
note = "https://thi.ng/geom-resample",
year = 2013
}© 2013 - 2024 Karsten Schmidt // Apache License 2.0