rust-rectangle-dividing

A library of rectangle dividing written in Rust. It can be compiled to WebAssembly. So you can use it in JavaScript.

Motivation

I want to divide a rectangle into smaller rectangles by given conditions (weights, aspect ratio, etc.).

Mainly, I want to use this for generating a map for my react-playground

• https://github.com/kitsuyui/react-playground
• https://react-playground.docs.kitsuyui.com/storybook/?path=/docs/base-treemap-introduction--docs

Usage in JavaScript

Install

This package is published on NPM @kitsuyui/rectangle-dividing

$ npm install @kitsuyui/rectangle-dividing
# or
$ yarn add @kitsuyui/rectangle-dividing
# or
$ pnpm add @kitsuyui/rectangle-dividing

Example

import { dividing } from "@kitsuyui/rectangle-dividing";

const rect = { x: 0, y: 0, w: 900, h: 800 };
const weights: Float32Array = Float32Array.from([4, 4, 1, 1, 1, 1]);
const aspectRatio = 1.5;
const verticalFirst = true;
const boustrophedron = true;
const divided = dividing(rect, weights, aspectRatio, verticalFirst, boustrophedron);
for (const d of divided) {
  console.log(d);
}

Result

{ x: 0, y: 0, w: 600, h: 400 }
{ x: 0, y: 400, w: 600, h: 400 }
{ x: 600, y: 600, w: 300, h: 200 }
{ x: 600, y: 400, w: 300, h: 200 }
{ x: 600, y: 200, w: 300, h: 200 }
{ x: 600, y: 0, w: 300, h: 200 }

dividing's arguments are

• rect: The rectangle to be divided
• weights: The weights of each rectangle
• isVertical: The direction of the first division
• aspectRatio: The aspect ratio of each rectangle
• boustrophedon: The direction of the next division in the same level

License

MIT