code: function (nodeId) {
        var body = getInitializedBody(nodeId);
        body.setPosition.apply(body, Array.prototype.slice.call(arguments, 1));
        physicsSimulator.invalidateBBox();
      }
docs: Sets position of a node to a given coordinates
  @param {string} nodeId node identifier
  @param {number} x position of a node
  @param {number} y position of a node
  @param {number=} z position of node (only if applicable to body)