graph 的rotate 没作用echarts graph配置项内容和展示

graph 的rotate 没作用

      option = {
    series: [{
        type: 'graph',

        data: [{
            name: "xxxxxxxxxxxxxxxxxxxxxxxx",
            value: "100000",
            symbolSize: 110,
            draggable: false,
            fixed: true,

            x: 500,
            y: 50,
        }],

        links: [],
        //圆形上面的文字	
        label: {
            normal: {
                position: "bottom",
                show: true,
                rotate: 30,
            }
        }
    }]
};