var xData = ["东北师范大学", "华东师范大学", "华中师范大学"]
var data = [{
name: '学校',
value: ["13", "25", "84"]
}]
var average = parseFloat(data[0].value.reduce((current, next) => {
return Number(current) + Number(next)
}) / data[0].value.length).toFixed(2)
console.log('average', average)
var lineData = data[0].value.map((item, index) => {
return {
value: average,
}
})
var barWidth = 30
var imgurl = 'data:image/png;base64,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'
//背景图片不接受百分比，只接受数值，获取图表的宽度实现动态背景宽度
var imgwidth = myChart.getWidth()
// console.log(myChart.getWidth())
var colorsTop = {
'学校': new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: "rgba(128, 195, 255, 1)"
},
{
offset: 1,
color: "rgba(128, 195, 255, 1)"
}
])
}
var colorsBottom = {
'学校': 'rgba(10, 121, 223, 1)',
}
var colors = [
new echarts.graphic.LinearGradient(0, 1, 0, 0, [{
offset: 0,
color: "rgba(10, 121, 223, 1)"
},
{
offset: 1,
color: "rgba(78, 164, 243, 1)"
}
])
]
var option = chuliData(data, barWidth)
console.log(option, 'option')
function chuliData(data, barWidth) {
// console.log(data)
let max = Math.max(...data[0].value);
let barDataBtm = []
let barData = []
let barDataTop = []
data[0].value.map((item) => {
let colorBottom = 'rgba(10, 121, 223, 1)'
let colorBody = new echarts.graphic.LinearGradient(0, 1, 0, 0, [{
offset: 0,
color: "rgba(10, 121, 223, 1)"
},
{
offset: 1,
color: "rgba(78, 164, 243, 1)"
}
])
let colorTop = new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: "rgba(128, 195, 255, 1)"
},
{
offset: 1,
color: "rgba(128, 195, 255, 1)"
}
])
barDataTop.push({
name: data[0].name,
value: item,
itemStyle: {
normal: {
color: colorTop
}
}
})
barData.push({
name: data[0].name,
value: item,
itemStyle: {
normal: {
color: colorBody
}
}
})
barDataBtm.push({
name: data[0].name,
value: item,
itemStyle: {
normal: {
color: colorBottom
}
}
})
})
// console.log(barData)
// let baseWidth = data.length == 4 ? 0 : 2.25/ data.length
let baseWidth = 0;
if (data.length == 4) {
baseWidth = 0
} else if (data.length == 2) {
baseWidth = 1.5
} else {
baseWidth = 2.25 / data.length
}
var seriesData = []
data.forEach((item, i) => {
var item = {
name: data[i].name,
type: 'bar',
barWidth: barWidth,
barGap: '50%',
data: barData,
symbolOffset: [0, 30],
itemStyle: {
normal: {
label: {
show: true, //开启显示
position: 'top', //在上方显示
distance: 10,
textStyle: { //数值样式
color: barDataBtm,
fontSize: 16
}
}
}
},
}
var itemBottom = { //柱底圆片
name: data[i].name,
type: "pictorialBar",
symbolSize: [barWidth, barWidth * 0.5],
symbolOffset: [baseWidth * barWidth + (i - 1.5) * barWidth * 1.5, barWidth * 0.25],
z: 12,
silent: true,
// color: colorsBottom,
itemStyle: {
"normal": {
color: colorsBottom[item.name]
}
},
data: barDataBtm
}
//柱顶圆片
var itemTop = {
name: data[i].name,
type: "pictorialBar",
symbolSize: [barWidth, barWidth * 0.5],
symbolOffset: [baseWidth * barWidth + (i - 1.5) * barWidth * 1.5, -barWidth * 0.25],
z: 12,
symbolPosition: "end",
silent: true,
itemStyle: {
"normal": {
color: colorsTop[item.name]
}
},
data: barDataTop
}
//平均线
var ave = {
name: '平均值',
type: 'line',
xAxisIndex: 1,
data: lineData,
lineStyle: {
type: 'dashed',
color: 'rgba(0,0,0,0)'
},
symbolSize: 0.0000001,
silent: true,
label: {
show: false
},
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgba(255, 163, 135, 1)'
}, {
offset: 1,
color: 'rgba(255, 99, 136, 1)'
}]),
symbol: 'none',
markLine: {
silent: true,
data: [{
type: 'average',
name: '平均值'
}],
lineStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: '#ff6388'
}, {
offset: 1,
color: '#ffa387'
}]),
textStyle: {
color: 'red',
}
},
symbol: 'none',
label: {
show: true,
position: 'top',
align: 'center',
lineHeight: 28,
distance: [20, 20],
textStyle: { //数值样式
fontSize: 16,
},
formatter: item => {
console.log('markLine', item)
return `{circle|${item.value}}\n`
},
rich: {
circle: {
// backgroundColor:'rgba(74, 202, 255, 0.1)',
backgroundColor: 'rgba(255, 99, 136, 1)',
color: '#FFFFFF',
borderRadius: 3,
fontSize: 14,
padding: [0, 5, 2, 5]
},
mb: {
padding: [0, 0, 20, 0]
}
}
}
},
markArea: {
data: [
[{
yAxis: 'average',
itemStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgba(255, 99, 136, 0.05)'
}, {
offset: 1,
color: 'rgba(255, 163, 135, 0.05)'
}])
}
}, {
yAxis: '0'
}]
],
}
}
console.log('ave', ave)
seriesData.push(itemTop)
seriesData.push(item)
seriesData.push(itemBottom)
seriesData.push(ave)
})
var option = {
color: colors,
tooltip: {
trigger: 'item',
},
grid: {
top: 100,
right: 0,
left: 0,
bottom: 0,
containLabel: true
},
graphic: {
type: 'image',
id: 'logo',
left: 22,
bottom: 44,
z: 0,
left: 'center',
style: {
image: imgurl,
width: imgwidth,
height: 50,
}
},
xAxis: [{
data: xData,
axisLabel: {
textStyle: {
color: '#aaaaaa',
fontSize: 14
},
margin: 30, //刻度标签与轴线之间的距离。
},
axisLine: {
show: false //不显示x轴
},
axisTick: {
show: false //不显示刻度
},
boundaryGap: true,
splitLine: {
show: false,
width: 0.08,
lineStyle: {
type: "solid",
color: "#03202E"
}
}
}, {
data: xData,
boundaryGap: false,
show: false
}],
yAxis: [{
splitLine: {
// show: false,
lineStyle: {
color: 'rgba(216, 216, 216, 1)',
type: 'solid'
}
},
axisTick: {
show: false
},
axisLine: {
show: false
},
axisLabel: {
textStyle: {
color: '#888'
},
}
}],
series: seriesData
};
return option
}
// console.log(seriesData)
myChart.setOption(option);
myChart.on('legendselectchanged', function (obj) {
const selectedList = []
data.forEach((item, i) => {
if (obj['selected'][item['name']]) {
selectedList.push(item)
}
})
var option = chuliData(selectedList, 30)
myChart.setOption(option);
});