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jsts

A JavaScript library of spatial predicates and functions for processing geometry


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What is jsts?

The jsts (JavaScript Topology Suite) npm package is a JavaScript library for performing various geometric operations. It is a port of the well-known JTS Topology Suite, which is widely used in the GIS (Geographic Information Systems) community. The library provides a range of functionalities for creating, manipulating, and analyzing planar geometric objects.

What are jsts's main functionalities?

Geometry Creation

This feature allows you to create geometric objects from Well-Known Text (WKT) representations. In this example, a point geometry is created from a WKT string.

const jsts = require('jsts');
const reader = new jsts.io.WKTReader();
const point = reader.read('POINT (10 20)');
console.log(point);

Geometric Operations

This feature allows you to perform geometric operations such as union, intersection, and difference. In this example, the union operation is performed on two polygon geometries.

const jsts = require('jsts');
const reader = new jsts.io.WKTReader();
const geom1 = reader.read('POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))');
const geom2 = reader.read('POLYGON ((20 30, 35 35, 30 20, 20 30))');
const union = geom1.union(geom2);
console.log(union);

Spatial Analysis

This feature allows you to perform spatial analysis operations such as calculating distances between geometries. In this example, the distance between two point geometries is calculated.

const jsts = require('jsts');
const reader = new jsts.io.WKTReader();
const geom1 = reader.read('POINT (10 20)');
const geom2 = reader.read('POINT (30 40)');
const distance = geom1.distance(geom2);
console.log(distance);

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Package last updated on 09 May 2024

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