饼图titleecharts 饼配置项内容和展示

在动态设置title后hover放大效果失效

           var source = ['50%', '50%'];
     var option = {
            tooltip: {
                trigger: 'item',
                formatter: "{a} <br/>{b} : {c} ({d}%)"
            },
            title: {
                text: '蔬菜',
                x: 'center',
                y: 'center',
                textStyle: {
                    color: '#98a0c4',
                    fontWeight: 'bolder',
                    fontSize: 25,
                }
            },
            legend: {
                itemWidth: 14,
                orient: '',
                icon: 'rect',
                left: '10%',
                top: 'center',
                data: ['蔬菜', '水果', '粮食作物', '经济作物', '茶叶', '绿化植物', '中药材', '其他'],

            },
            calculable: true,
            series: [
                {
                    type: 'pie',
                    data: [100],
                    z: 2,
                    radius: ['69%', '0%'],
                    center: source,
                    silent: true,
                    itemStyle: {
                        normal: {
                            color: '#fff',
                        }
                    },
                    labelLine: {
                        normal: {
                            show: false
                        }
                    }
                },
                {
                    type: 'pie',
                    data: [100],
                    z: 1,
                    radius: ['70%', '0%'],
                    center: source,
                    itemStyle: {
                        normal: {
                            color: '#dcdcdc',
                        }
                    },
                    silent: true,
                    labelLine: {
                        normal: {
                            show: false
                        }
                    }
                }, {
                    type: 'pie',
                    data: [100],
                    z: 4,
                    radius: ['36%', '0%'],
                    center: source,
                    itemStyle: {
                        normal: {
                            color: '#dcdcdc',
                        }
                    },
                    silent: true,
                    labelLine: {
                        normal: {
                            show: false
                        }
                    }
                },
                {
                    type: 'pie',
                    data: [100],
                    z: 4,
                    radius: ['35%', '0%'],
                    center: source,
                    itemStyle: {
                        normal: {
                            color: '#fff',
                        }
                    },
                    silent: true,
                    labelLine: {
                        normal: {
                            show: false
                        }
                    }
                },
                {
                    name: '种植面积',
                    type: 'pie',
                    z: 5,
                    radius: ["45%", "60%"],
                    center: source,
                    startAngle: 300,
                    hoverAnimation:true,
                    label: {
                        normal: {
                            show: false,
                        },
                    },
                    data: [
                        { value: 69, name: '蔬菜' },
                        { value: 88, name: '水果' },
                        { value: 90, name: '粮食作物' },
                        { value: 20, name: '经济作物' },
                        { value: 60, name: '茶叶' },
                        { value: 86, name: '绿化植物' },
                        { value: 46, name: '中药材' },
                        { value: 35, name: '其他' },
                    ]
                }
            ]
        };
        myChart.on('mousemove', function (params) {
            myChart.setOption({
                title: {
                    text: params.name,
                }
            })
        });