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offsetter

0.2.0 • Public • Published

offsetter

This module is a simple thing does two things:

  • moves (in the abstract) the center of your browser/css coordinate system to wherever you want, instead of the top-left corner.
  • returns coordinates that offset your position to the middle of object (based on width & height)
npm install offsetter

usage

offsetter returns a function that you call with new center, relative to [0,0] in the top-left, so:

var offsetter = require('offsetter')
var center = [window.innerWidth / 2, window.innerHeight / 2]
var offset = offsetter(center)

The function that is returned from the constructor takes 3 args

var width = 20
var height = 20
var coord = [-200, 200]
var newCoordinate = offset(coord, width, height)

example

from ex.js

var offset = require('./')([500,500]) // sets the new [0,0] to [500,500] the page
                                      // ie. offset([window.innerWidth / 2, window.innerHeight])
 
// test centering at the new [0,0] a supposed object that is height and width zero
console.log(offset([0,0], 0, 0))
 
// test position at [5,5], an item that is height and width 10
console.log(offset([5,5], 10, 10))

Readme

Keywords

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Install

npm i offsetter

Weekly Downloads

1

Version

0.2.0

License

BSD-2-Clause

Last publish

Collaborators

  • johnnyscript
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