Snap.svg - drag event handler

Question

Question is about the onstart event handler for Element.drag in the newly announced Snap.svg.

The intention of the code below is to register event handlers for the start

Answer 1

Try this

var paper = Snap("#main"); 

var object  = paper.circle(300,150,100)
object .attr({
  stroke: "#000",
  strokeWidth: 10,
  strokeLinecap:"round"
}); 

var move1 = function(dx,dy, posx, posy) { 
this.transform(this.data('origTransform') + (this.data('origTransform') ? "T" : "t") + [dx, dy]) 
};

var start = function() {
        this.data('origTransform', this.transform().local );
}
var stop = function() {
        console.log('dragging done');
}

object.drag(move1, start, stop );