Geometry-TS

A collection of TS classes for geometric objects and calculations. Uses 2D coordinates to represent position of objects.

Public classes

Library provides 3 classes for the most common geometric figures and a class to represent point in 2D space.

Point

Utility class to represent point in 2D space. Primarely used in geometric object constructors.

Circle

Represents circle in 2D space. Has 2 main parameters: center and radius and 3 calculated parameters: area, circumference and diameter.

Rectangle

Represents rectangle in 2D space. Has 2 main parameters: top-left and bottom-right corners and 4 calculated parameters: height, width, perimeter and area.

Triangle

Represents triangle in 2D space.
Public properties:

• edges - array of 3 points that represent triangle edges
• perimeter - perimeter of the triangle. (calculated property)
• area - area of the triangle. (calculated property)

Setup

You can grab it directly from npm:

npm install geometry-ts
# or
yarn add geometry-ts

Then you can import it in your project:

In ES modules syntax:

import { Circle, Point, Rectangle, Triangle } from 'geometry-ts';

In CommonJS syntax:

const { Circle, Point, Rectangle, Triangle } = require('geometry-ts');

Usage

You can expand class structure by defining your own classes using inheritance.

import { Rectangle, Point } from 'geometry-ts';

class Square extends Rectangle {
    sideLenght: number;
    constructor(topLeft: Point, sideLenght: number) {
        super(topLeft, new Point(topLeft.x + sideLenght, topLeft.y + sideLenght));
        this.sideLenght = sideLenght;
    }
    toString(): string {
        return `Square with top left corner ${this.vertices[0].toString()} and side ${this.sideLenght}`;
    }
}

const square = new Square(new Point(0, 0), 10);
console.log(square.toString()); // Square with top left corner (0,0) and side 10
console.log(square.area); // 100