Calculates heading based on deviceorientation event.
The algorithm is a version proposed in the stackoverflow answer and deviceorientation spec modified for chrome.
Check out demo page to see how it works on your device.
$ npm install --save kompasconst kompas = require('kompas');
// start watching and add callback
kompas.watch();
kompas.on('heading', function(heading) {
console.log('Heading:', heading);
});
// stop watching
kompas.clear();MIT © Damian Krzeminski
