range-map

inspired by the Map function in Processing. This module scales a number from one range to another

Installation

$ npm install range-map

Example Usage

var rangeMap = require('range-map')
 
var mapped = rangeMap(50, 0, 100, 0, 1000)
 
//mapped == 500

API

mapped(input, inputLowest, inputHighest, outputLowest, outputHighest)

returns a number that has been rounded with Math.round() The ranges will also work with negative numbers.