网络机房建设情况echarts 饼配置项内容和展示

      
var data = [{
        value: 100,
        name: '筹建中',
        label: {
            color: '#fff'
        },
        itemStyle: {

        },
        emphasis: {
            itemStyle: {

            }
        }
    },
    {
        value: 80,
        name: '建设中',
        label: {
            color: '#fff'
        },
        itemStyle: {

        },
        emphasis: {
            itemStyle: {

            }
        }
    },
    {
        value: 65,
        name: '建设完成',
        label: {
            color: '#fff'
        },
        itemStyle: {

        },
        emphasis: {
            itemStyle: {

            }
        }
    },
            {
        value: 65,
        name: '投入使用',
        label: {
            color: '#fff'
        },
        itemStyle: {

        },
        emphasis: {
            itemStyle: {

            }
        }
    },
          
];

function angleText(i, num) {
    //每个元素的角度
    var everyAngle = 360 / num;
    //文字现在所在的角度
    var currentAngle = i * everyAngle + everyAngle / 2;
    //文字所在模块的所占角度
    var currentArea = (i + 1) * everyAngle;
  
    if (currentAngle <= 90) {
        return -currentAngle;
    } else if (currentAngle <= 180 && currentAngle > 90) {
        return 180 - currentAngle;
    } else if (currentAngle < 270 && currentAngle > 180) {
        return 180 - currentAngle;
    } else if (currentAngle < 360 && currentAngle >= 270) {
        return 360 - currentAngle;
    }
}

//有值的色图的正切处理
var data3 = [];
data3 = JSON.parse(JSON.stringify(data));
for (var i = 0; i < data3.length; i++) {
    if (i === 0) {
        data3[i]['label']['color'] = '#333';
        data3[i]['itemStyle']['color'] = 'rgba(25, 255, 224)';
        data3[i]['emphasis']['itemStyle']['color'] = 'rgba(25, 255, 224)';
        data3[i]['label']['rotate'] = angleText(i, data3.length);
    } else {
        data3[i]['label']['color'] = '#fff';
        data3[i]['itemStyle']['color'] = '#4169E1';
        data3[i]['emphasis']['itemStyle']['color'] = '#6A5ACD';
        data3[i]['label']['rotate'] = angleText(i, data3.length);
    }
}


//最外层大圈的数据
var data1 = [];

data1 = JSON.parse(JSON.stringify(data));
for (var i = 0; i < data1.length; i++) {
    data1[i].value = 1;
    data1[i]['label']['rotate'] = angleText(i, data1.length);
    if (i === 0) {
        data1[i]['label']['color'] = 'rgba(25, 255, 224)';
    }
}

//透明饼图的数据
var data2 = [];

for (var i = 0; i < data.length; i++) {
    if (i === 0) {
        data2.push({
            value: 1,
            itemStyle: {
                color: 'rgba(25, 255, 224,0.05)',
            }
        });
    } else {
        data2.push({
            value: 1,
            itemStyle: {
                color: 'transparent',
            }
        });
    }
}





var option = {
    backgroundColor:'rgba(9, 15, 33)',
  title: {
        text: '网络机房建设情况',
        top: '48%',
        textAlign: "center",
        left: "49%",
        textStyle: {
            color: '#fff',
            fontSize: 22,
            fontWeight: '400'
        }
    },
    grid: {
    },
    polar: {},
    angleAxis: {
        show:false,
        interval: 1,
        type: 'category',
        data: [],
      

    },
    //中间画圈圈的坐标轴
    radiusAxis: {
        show: false
    },
    series: [{
        type: 'pie',
        radius: ["68%", "90%"],
        hoverAnimation: false,
        itemStyle: {
            color: 'transparent'
        },
        labelLine: {
            normal: {
                show: false,
                length: 30,
                length2: 55
            },
        },
        label: {
            normal: {
                position: 'inside',
                align: 'right'
            }
        },
        name: "",
        data: data1
    }, {
        stack: 'a',
        type: 'pie',
        radius: ['75%', '42%'],
        roseType: 'area',
        zlevel: 10,
        itemStyle: {
            color: '#4169E1',
        },
        emphasis: {
            itemStyle: {
                color: '#6A5ACD'
            }
        },
        label: {
            normal: {
                show: true,
                textStyle: {
                    fontSize: 18,
                    color: '#fff'
                },
                position: 'inside',
                rotate: 30,
                align: 'right',
                fontWeight:'bold',
                formatter:'{c}%'
            },
            emphasis: {
                show: true
            }
        },
        animation: false,
        data: data3
    }, {
        type: 'pie',
        zlevel: 99,
        radius: ["15%", "90%"],
        selectedOffset: 0,
        animation: false,
        hoverAnimation: false,
        label: {
            normal: {
                show: false,
            }
        },
        data: data2
    }]
};

myChart.setOption(option);


myChart.on('click', function(a) {
    //最外层的字体颜色重置变色
    for (var da1 = 0; da1 < option.series[0].data.length; da1++) {
        option.series[0].data[da1].label.color = '#fff';
    }

    //色圈的字体颜色和选中颜色重置
    for (var da2 = 0; da2 < option.series[1].data.length; da2++) {
        option.series[1].data[da2].itemStyle.color = '#4169E1';
        option.series[1].data[da2].label.color = '#fff';
        //hover颜色重置
        option.series[1].data[da2].emphasis.itemStyle.color = '#6A5ACD';

    }

    //背景的透明饼图的重置
    for (var da3 = 0; da3 < option.series[2].data.length; da3++) {
        option.series[2].data[da3].itemStyle.color = 'transparent';
    }

    option.series[1].data[a.dataIndex].itemStyle.color = 'rgba(25, 255, 224)';
    option.series[1].data[a.dataIndex].label.color = '#333';
    //hover 颜色改变
    option.series[1].data[a.dataIndex].emphasis.itemStyle.color = 'rgba(25, 255, 224)';
    option.series[0].data[a.dataIndex].label.color = 'rgba(25, 255, 224)';
    option.series[2].data[a.dataIndex].itemStyle.color = 'rgba(25, 255, 224,0.1)';
    //console.log(option)
    myChart.setOption(option);
});

myChart.on('mouseover', function(a) {
    myChart.dispatchAction({
        type: 'highlight',
        seriesIndex: 1,
        dataIndex: a.dataIndex
    });
});

myChart.on('mouseout', function(a) {
    myChart.dispatchAction({
        type: 'downplay',
        seriesIndex: 1,
        dataIndex: a.dataIndex
    });
});