option = {
title: {
text: '频谱'
},
grid: {
left: "6%", //距离左边的距离
right: "1%", //距离右边的距离
bottom: "6%", //距离下边的距离
top: "4%", //距离上边的距离
height: "30%" // 高度
},
xAxis: {
name: "频率 / GHz",
nameTextStyle: {
align: "center",
verticalAlign: "bottom",
fontSize: 14
},
nameLocation: 'center',
nameGap: 50,
type: "value",
min: 0,
max: 6000,
splitNumber: 6,
// 格式化显示
axisLabel: {
formatter: function(value, index) {
// 格式化成月/日，只在第一个刻度显示年份
let val = value / 1000;
return val;
}
},
// 设置次要的网格标线
minorSplitLine: {
show: true,
lineStyle: {
color: '#ddd'
}
}
},
yAxis: {
name: "功率密度 / nW/m2",
nameTextStyle: {
align: "center",
verticalAlign: "bottom",
fontSize: 14
},
nameLocation: 'center',
nameGap: 50,
type: "log",
min: 0.0001,
max: 100000,
logBase: 10,
},
series: [{ // 线
type: 'line',
symbol: 'none',
lineStyle: {
color: "#000",
width: 1
},
//标记点
markPoint: {
symbol: 'circle',
symbolSize: 12,
itemStyle: {
color: "red"
},
label: {
show: true,
position: 'top',
formatter: function(param) {
console.log(param)
return param.data.coord[1];
}
},
data: []
}
}],
dataset: { // 数据源
source: [
[0, "13.390"],
[25, "10.047"],
[50, "17.850"],
[600, 110],
[700, 130]
]
}
};