/*
图表上边展示7天降雨量，下边展示7天温度/湿度
***注意***
xAxis / yAxis / series
一定要把 series - xAxisIndex / yAxisIndex对应好
对应规则：series数据
降雨量的xAxisIndex - 因为xAxis第0项为顶部x轴（降雨量要放到顶部），所以 xAxisIndex = 0
yAxisIndex - 因为yAxis第0项为降雨量，所以 yAxisIndex = 0
降雨量的xAxisIndex - 因为xAxis第1项为底部x轴（温度要放到底部），所以 xAxisIndex = 1
yAxisIndex - 因为yAxis第2项为降雨量，所以 yAxisIndex = 2
***展示数据对应 yAxis 数据的第几项 yAxisIndex 就等于几***
如果对应不对可能会报错 'type is undefined'，数据确认没问题那就是gridIndex ，yAxisIndex， xAxisIndex 没有对应好
***注意***
*/
// 最大和最小时间戳
const xMin = new Date('2021/08/24').getTime();
const xMax = new Date('2021/08/31').getTime();
option = {
title: {
text: '多个x轴和多个y轴',
},
axisPointer: {
// 设置上下x轴同时联动
link: { xAxisIndex: 'all' },
},
tooltip: {
trigger: 'axis',
formatter: function (params) {
//时间
let relVal = params[0].value[0];
for (let i = 0, l = params.length; i < l; i++) {
const dataValue = params[i].value[1] === null ? '-' : params[i].value[1];
relVal += '<br/>' + params[i].seriesName + ' : ' + dataValue;
}
return relVal;
},
},
grid: [
{
height: '35%',
top: '10%',
show: true,
borderColor: '#19295c',
borderWidth: 0,
},
{
top: '60%',
height: '35%',
show: true,
borderColor: '#19295c',
borderWidth: 0,
},
],
xAxis: [
{
// 顶部x轴
gridIndex: 0,
type: 'time',
max: 1630252800000,
min: 1629734400000,
position: 'top',
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
boundaryGap: false, // 取消坐标轴两边留白
},
{
// 底部x轴
gridIndex: 1,
type: 'time',
max: 1630252800000,
min: 1629734400000,
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
boundaryGap: false, // 取消坐标轴两边留白
},
],
yAxis: [
{
// 降雨量
name: '降雨量\n(mm)',
nameTextStyle: {
align: 'center'
},
nameLocation: 'end',
gridIndex: 0,
type: 'value',
inverse: true,
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
},
{
// 降雨量右侧y轴线与为了下面的折线图对齐
gridIndex: 0,
type: 'value',
position: 'right',
inverse: true,
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
},
{
// 温度
name: '温度\n(℃)',
nameTextStyle: {
align: 'center'
},
nameLocation: 'end',
gridIndex: 1,
type: 'value',
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
},
{
// 湿度
name: ' 湿度\n(hPa)',
nameTextStyle: {
align: 'left'
},
nameLocation: 'end',
gridIndex: 1,
type: 'value',
position: 'right',
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: true,
},
},
{
// 气压
name: ' 气压\n(Pa)',
nameTextStyle: {
align: 'left'
},
nameLocation: 'end',
gridIndex: 1,
offset: 50,
type: 'value',
position: 'right',
axisTick: { show: false },
splitLine: {
show: false,
},
axisLine: {
show: false,
},
},
],
series: [
{
name: '降雨量',
type: 'bar',
symbol: 'circle',
symbolSize: 6,
xAxisIndex: 0,
yAxisIndex: 0,
barWidth: 5, // 柱宽
itemStyle: {
normal: {
show: true,
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{
offset: 0,
color: '#0d5592',
},
{
offset: 1,
color: '#0ebfd4',
},
]),
barBorderRadius: [0, 0, 4, 4],
borderWidth: 0,
},
},
data: [
['2021-08-24', 12],
['2021-08-25', 121],
['2021-08-26', 55],
['2021-08-27', 99],
['2021-08-28', 23],
['2021-08-29', 45],
['2021-08-30', 200],
],
},
{
name: '温度',
type: 'line',
symbol: 'circle',
symbolSize: 6,
xAxisIndex: 1,
yAxisIndex: 2,
data: [
['2021-08-24', 25],
['2021-08-25', 16],
['2021-08-26', 18],
['2021-08-27', 20],
['2021-08-28', 33],
['2021-08-29', 30],
['2021-08-30', 12],
],
},
{
name: '湿度',
type: 'line',
symbol: 'circle',
symbolSize: 6,
xAxisIndex: 1,
yAxisIndex: 3,
data: [
['2021-08-24', 50],
['2021-08-25', 30],
['2021-08-26', 10],
['2021-08-27', 70],
['2021-08-28', 45],
['2021-08-29', 88],
['2021-08-30', 22],
],
},
{
name: '气压',
type: 'line',
symbol: 'circle',
symbolSize: 6,
xAxisIndex: 1,
yAxisIndex: 4,
data: [
['2021-08-24', 250],
['2021-08-25', 130],
['2021-08-26', 110],
['2021-08-27', 70],
['2021-08-28', 45],
['2021-08-29', 88],
['2021-08-30', 22],
],
},
],
};