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fit-rectangle-into-rectangle

v0.0.1

Published

Small utility to fit a rectangle into another

Readme

fit-rectangle-into-rectangle

Clean, tiny utility to fit one rectangle into another while preserving aspect ratio.

GitHubnpm

Table of Contents

  • Description (English)
  • Examples (English)
  • Описание (Русский)
  • API
  • Installation
  • Local build
  • License

Description (English)

A minimal TypeScript function that calculates how to scale and position an inner rectangle so it fits entirely inside an outer rectangle, keeping the original aspect ratio. Returns the scaled width/height and top-left coordinates for centering by default.

Links

  • GitHub: https://github.com/GrigoriyKanev/fit-rectangle-into-rectangle
  • npm: https://www.npmjs.com/package/fit-rectangle-into-rectangle

Examples (English)

import fitRectangle, { ElemSize } from 'fit-rectangle-into-rectangle';

const outer: ElemSize = { w: 1920, h: 1080 };
const inner: ElemSize = { w: 800, h: 600 };
const { x, y, width, height } = fitRectangle(outer, inner);
console.log(x, y, width, height);

Описание (Русский)

Небольшая библиотека для точного вписывания одного прямоугольника в другой с сохранением пропорций. Функция вычисляет максимальный масштаб, при котором внутренний прямоугольник полностью помещается в внешний контейнер, и возвращает координаты и размеры для корректного размещения (по центру по умолчанию).

Описание

Функция вычисляет максимальный масштаб, при котором внутренний прямоугольник полностью помещается в внешний контейнер. Возвращает размеры и позицию для корректного размещения (центрирование по умолчанию).

API (TypeScript)

type ElemSize = { w: number; h: number }

export default function fit_rectangle(outer: ElemSize, inner: ElemSize): { x: number; y: number; width: number; height: number }

Параметры

  • outer — размеры внешнего прямоугольника { w, h }
  • inner — исходные размеры вписываемого прямоугольника { w, h }

Возвращает

  • x, y — координаты верхнего левого угла вписанного прямоугольника внутри outer
  • width, height — итоговые размеры после масштабирования

Установка

npm install fit-rectangle-into-rectangle

Пример (TypeScript)

import fitRectangle, { ElemSize } from 'fit-rectangle-into-rectangle';

const outer: ElemSize = { w: 1920, h: 1080 };
const inner: ElemSize = { w: 800, h: 600 };
const { x, y, width, height } = fitRectangle(outer, inner);
console.log(x, y, width, height);

Локальная сборка

npm install
npm run build

Лицензия

MIT