@thi.ng/geom-resample
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    2.1.17 • Public • Published

    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: 1.27 KB

    Dependencies

    Usage examples

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

    A selection:

    Screenshot Description Live demo Source
    Animated Voronoi diagram, cubic splines & SVG download Demo Source

    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 - 2022 Karsten Schmidt // Apache Software License 2.0

    Install

    npm i @thi.ng/geom-resample

    DownloadsWeekly Downloads

    140

    Version

    2.1.17

    License

    Apache-2.0

    Unpacked Size

    30.5 kB

    Total Files

    12

    Last publish

    Collaborators

    • thi.ng