# geosimplify-js

**Repository Path**: mirrors_mapbox/geosimplify-js

## Basic Information

- **Project Name**: geosimplify-js
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: BSD-2-Clause
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-09
- **Last Updated**: 2025-11-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## geosimplify-js

This module simplifies sequences of [longitude,latitude] pairs using
geography-aware measurement thresholds.

Based on https://github.com/mourner/simplify-js, `geosimplify-js`
fixes the problem that the simple pythagorean measure used in `simplify-js`
changes size if you simply give it longitude/latitude sequences to
simplify.

Usage:

```javascript
simplify([[lon,lat],[lon,lat],[lon,lat]], offsetThresholdInMetres, gapThresholdInMetres);
```

**path** - an array of `longitude,latitude` pairs

**offsetThreshold** - how far outside the straight line a point needs to be for it to be "kept"

**gapThreshold** - if removing a point would create a segment longer than this, do not remove it

Example:

```javascript
var geosimplify = require('@mapbox/geosimplify-js');
var coords = [ [ 15.603332, 78.227070 ],
               [ 15.606422, 78.226824 ],
               [ 15.608782, 78.226667 ],
               [ 15.610799, 78.226535 ] ];
var result = geosimplify(coords, 5, 50);
```