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@thi.ng/grid-iterators

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@thi.ng/grid-iterators

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

About
Installation
Dependencies
Usage examples
Authors
License

About

Collection of 2D grid iterators, providing the 10 following orderings:

Diagonal

anim

Source

Hilbert curve

anim

Source

Interleave columns

anim

Source

Supports custom strides... example uses step = 4

Interleave rows

anim

Source

Supports custom strides... example uses step = 4

Random

anim

Source

Supports custom PRNG implementations via IRandom interface defined in @thi.ng/random

Outward spiral

anim

Source

Z-curve

anim

Source

Zigzag columns

anim

Source

Zigzag diagonal

anim

Source

Zigzag rows

anim

Source

Some functions have been ported from Christopher Kulla's Java-based Sunflow renderer.

For more basic 2D/3D grid iteration, also see range2d() & range3d() in @thi.ng/transducers.

Installation

yarn add @thi.ng/grid-iterators

Dependencies

Usage examples

import * as gi from "@thi.ng/grid-iterators";

[...gi.zigzagRows2d(4, 4)]

// [
//   [ 0, 0 ], [ 1, 0 ], [ 2, 0 ], [ 3, 0 ],
//   [ 3, 1 ], [ 2, 1 ], [ 1, 1 ], [ 0, 1 ],
//   [ 0, 2 ], [ 1, 2 ], [ 2, 2 ], [ 3, 2 ],
//   [ 3, 3 ], [ 2, 3 ], [ 1, 3 ], [ 0, 3 ]
// ]

Authors

Karsten Schmidt