h(Math.round(Math.random() * (paths.length - 1)));
                        }
                        data.push([
                            echarts.format.formatTime('yyyy-MM-dd', time),
                            items.join('|')
                        ]);
                    }
                    return data;
                }

                function renderItem(params, api) {
                    var cellPoint = api.coord(api.value(0));
                    var cellWidth = params.coordSys.cellWidth;
   