2.3.52 • Published 2 days ago

@thi.ng/geom-resample v2.3.52

Weekly downloads
133
License
Apache-2.0
Repository
github
Last release
2 days ago

geom-resample

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

About

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.

Status

STABLE - used in production

Search or submit any issues for this package

Installation

yarn add @thi.ng/geom-resample

ES module import:

<script type="module" src="https://cdn.skypack.dev/@thi.ng/geom-resample"></script>

Skypack documentation

For Node.js REPL:

# with flag only for < v16
node --experimental-repl-await

> const geomResample = await import("@thi.ng/geom-resample");

Package sizes (gzipped, pre-treeshake): ESM: 1.25 KB

Dependencies

Usage examples

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

A selection:

ScreenshotDescriptionLive demoSource
Animated Voronoi diagram, cubic splines & SVG downloadDemoSource

API

Generated API docs

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 ] ]

Authors

Karsten Schmidt

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
}

License

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

2d3dcurvedatastructuredistancegeometryinterpolationlinendpointspolygonpolylineproximitysampletangenttypescript
@thi.ng/api@thi.ng/checks@thi.ng/geom-api@thi.ng/geom-closest-point@thi.ng/geom-isec@thi.ng/math@thi.ng/vectors
@everything-registry/sub-chunk-914@thi.ng/geom-arc@thi.ng/geom-fuzz@thi.ng/geom@thi.ng/boids@thi.ng/geom-sdf@thi.ng/geom-splines
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