Rotating SVG elements matrix inversion in JavaScript -- 2

Job ID: 35760106

Budget: $30 – $250 USD

I am looking for a developer who knows matrix inversion in JavaScript to add rotate function to an open source WBO whiteboard: https://github.com/lovasoa/whitebophir
I would like to be able to do a 360 degree an element rotation or a group of elements.
Related categories: JavaScript HTML5 Node.js Socket IO SVG