drag

Fires on mousemove / touchmove.

---

The callback has two parameters which returns the orignal event and coordinates of the selection area (lasso) as an Object.

selectable.on("drag", function(e, coords) {

});

The coords parameter returns an Object of the following format:

{
    x1: Number, // the origin x offset
    y1: Number, // the origin y offset
    x2: Number, // the x offset from x1
    y2: Number, // the y offset from y1
}

x1,y1 (origin)
      +----------------------+
      |                      |
      |                      |
      |                      |
      |                      |
      |                      |
      |                      |
      +----------------------+
                              x2, y2 (mouse pointer)