1 d3.svg.touches = function(container, touches) {

     2   if (arguments.length < 2) touches = d3.event.touches;

     3 

     4   return touches ? d3_array(touches).map(function(touch) {

     5     var point = d3_svg_mousePoint(container, touch);

     6     point.identifier = touch.identifier;

     7     return point;

     8   }) : [];

     9 };