Function click

explainshell/web/static/js/d3.v3.js:531–534

()

        w.on(touchId != null ? "touchmove.drag-" + touchId : "mousemove.drag", null).on(touchId != null ? "touchend.drag-" + touchId : "mouseup.drag", null);
      }
      function click() {
        d3_eventCancel();
        w.on("click.drag", null);
      }
    }
    drag.origin = function(x) {
      if (!arguments.length) return origin;