如何在dhtmlx甘特图中设置日期、年份等行的自动高度

gantt.config.row_height = 23;

gantt.config.scale_height = {
  year: 30
};

gantt.templates.scale_cell_class = function(date){
  if (date.getUTCHours() === 0 && date.getUTCMinutes() === 0) {
    var dateString = gantt.templates.date_scale(date);
    var height = dateString.length * 20;
    return "gantt_scale_cell gantt_scale_cell_date" + " gantt_scale_cell_height_" + height;
  }
  return "gantt_scale_cell";
};

.gantt_scale_cell_height_40 {
  height: 40px;
}