@scratching-platypus/coordinate-ts

A geographic coordinates (latitude/longitude) type for TypeScript with utilities for strict and tolerant comparison.

Install

npm install @scratching-platypus/coordinate-ts

Import

import { Coordinate, equals, approxEquals } from "@scratching-platypus/coordinate-ts";

Coordinate Type

const a: Coordinate = { latitude: 50.0802767, longitude: 16.2958756 };

const b: Coordinate = { latitude: 50.0797031, longitude: 16.2961389 };

Strict Equality

equals(a, b); // false

Tolerant Equality

Compares latitude and longitude independently using absolute difference in degrees.

approxEquals(a, b);         // false, epsilon = 1e-9
approxEquals(a, b, 1e-3);   // true