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

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

Diagonal	Hilbert curve	Outward spiral
Zigzag columns	Zigzag rows

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

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

yarn add @thi.ng/grid-iterators

None

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 ]
// ]

• Karsten Schmidt

© 2019 Karsten Schmidt // Apache Software License 2.0