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本篇內容主要講解“Vue2怎么用echarts繪制折線圖,餅圖和大圖”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強。下面就讓小編來帶大家學習“Vue2怎么用echarts繪制折線圖,餅圖和大圖”吧!
<template>
<div>
<div
class="chart-header"
:
>
<span class="chart-title">{{ title }}</span>
<slot name="right" />
</div>
<div
v-if="!isNoData"
>
<div
ref="pie"
class="echarts"
:
/>
</div>
<div
v-else
class="no-data"
>
<empty :imagew="160" />
</div>
</div>
</template>
<script>
import echarts from 'echarts';
export default {
props: {
chartType: {
type: String,
default: 'pie'
},
chartHeight: {
type: String,
default: '220px'
},
title: {
type: String,
default: ''
}
},
data() {
return {
isNoData: false
};
},
methods: {
pieInit(data, text, subtext, tab = 'node') {
data = data.filter(i=>+i.value != 0);
if (data.length < 1) {
this.isNoData = true;
} else {
this.isNoData = false;
}
if (this.isNoData) return;
this.$nextTick(()=>{
let myChart = echarts.init(this.$refs['pie']);
myChart.clear();
myChart.setOption({
tooltip: {
trigger: 'item'
},
legend: {
orient: 'vertical',
right: '10%',
top: tab === 'node' || data.length < 5 ? '22%' : null,
itemGap: tab === 'node' ? 17 : 10,
itemWidth: 8,
icon: 'circle',
textStyle: {
color: '#666',
lineHeight: 25
},
formatter: (name) => {
let tarValue;
for (let i = 0; i < data.length; i++) {
if (data[i].name == name) {
tarValue = data[i].value;
}
}
return `${name}: ${tarValue}`;
}
},
title: {
show: !!subtext,
text: text,
textAlign: 'middle',
subtext: `${subtext}`,
left: '26%',
top: '25%',
itemGap: 15,
textStyle: {
fontSize: 14,
color: '#666',
fontWeight: 400
},
subtextStyle: {
fontSize: 24,
color: '#333',
fontWeight: 600
}
},
textStyle: {
rich: {
a: {
verticalAlign: 'middle'
}
},
lineHeight: 8,
padding: [0, 5, -2, 0]
},
color: ['#6E99F0', '#47C8A3', '#FAC858', '#FFA660', '#FF8579', '#A3B3D6'],
series: [
{
type: 'pie',
minAngle: 25,
center: [subtext ? '5%' : '18%', subtext ? '20%' : '45%'],
radius: ['75%', '116%'],
left: 'center',
top: 'center',
avoidLabelOverlap: false,
labelLine: {
show: false
},
label: {
show: false
},
data
}
]
});
myChart.resize();
window.addEventListener('resize', () => {
myChart.resize();
});
});
},
lineInit(date, data, subtext = '(%)', tab = 'node') {
data = data.filter(i=>+i.value != 0);
if (data.length < 1) {
this.isNoData = true;
} else {
this.isNoData = false;
}
if (this.isNoData) return;
this.$nextTick(()=>{
let myChart = echarts.init(this.$refs['pie']);
myChart.clear();
myChart.setOption({
tooltip: {
trigger: 'axis',
position: function(point, params, dom, rect, size) {
var x = 0; // x坐標位置
var y = 0; // y坐標位置
var pointX = point[0];
var pointY = point[1];
// 提示框大小
var boxWidth = size.contentSize[0];
var boxHeight = size.contentSize[1];
if (boxWidth > pointX) {
x = 5;
} else { // 左邊放的下
x = pointX - boxWidth;
}
if (boxHeight > pointY) {
y = 5;
} else { // 上邊放得下
y = pointY - boxHeight;
}
return [x, y];
},
formatter: function(params) {
let color = params[0].color;
let marker = '<span ></span>';
let res = params[0].name + '<br/>' + marker + params[0].value + subtext;
return res;
}
},
grid: {
top: '13%',
left: '15%',
right: 0,
bottom: '20%'
},
xAxis: {
type: 'category',
offset: 8,
data: date,
axisLabel: {
color: '#666',
formatter: function(value) {
return value.substring(value.length - 8);
}
}
},
title: {
subtext: subtext,
subtextStyle: {
textAlign: 'right',
color: '#666'
},
// padding: [0, 10],
top: 0,
left: tab === 'node' ? '5%' : '8%',
itemGap: 0
},
yAxis: {
type: 'value',
boundaryGap: false,
axisLine: {
show: false
},
axisLabel: {
color: '#666'
},
axisTick: {
show: false
}
},
series: [
{
type: 'line',
symbol: 'none',
sampling: 'lttb',
itemStyle: {
color: 'rgb(110, 153, 240)'
},
areaStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{
offset: 0,
color: '#6E99F0'
},
{
offset: 1,
color: '#ffffff'
}
])
},
data: data
}
]
});
myChart.resize();
window.addEventListener('resize', () => {
myChart.resize();
});
});
},
markLineInit(date, data, subtext = '(%)', tab = 'node', limit, request) {
data = data.filter(i=>+i.value != 0);
if (data.length < 1) {
this.isNoData = true;
}
if (this.isNoData) return;
this.$nextTick(()=>{
let myChart = echarts.init(this.$refs['pie']);
myChart.clear();
myChart.setOption({
tooltip: {
trigger: 'axis',
position: function(point, params, dom, rect, size) {
var x = 0; // x坐標位置
var y = 0; // y坐標位置
var pointX = point[0];
var pointY = point[1];
// 提示框大小
var boxWidth = size.contentSize[0];
var boxHeight = size.contentSize[1];
if (boxWidth > pointX) {
x = 5;
} else { // 左邊放的下
x = pointX - boxWidth;
}
if (boxHeight > pointY) {
y = 5;
} else { // 上邊放得下
y = pointY - boxHeight;
}
return [x, y];
},
formatter: function(params) {
let color = params[0].color;
let marker = '<span ></span>';
let res = params[0].name + '<br/>' + marker + params[0].value + subtext;
return res;
}
},
color: ['#6E99F0'],
title: {
subtext: subtext,
subtextStyle: {
textAlign: 'right',
color: '#666'
},
top: 0,
left: tab === 'node' ? '5%' : '8%',
itemGap: 0
},
grid: {
top: '15%',
left: '15%',
right: 0,
bottom: '15%'
},
xAxis: {
type: 'category',
boundaryGap: false,
data: date,
axisLabel: {
color: '#666',
formatter: function(value) {
return value.substring(value.length - 8);
}
}
},
yAxis: {
type: 'value',
max: limit >= request ? limit + 1 : request + 1,
boundaryGap: false,
axisLine: {
show: false
},
axisLabel: {
color: '#666'
},
axisTick: {
show: false
}
},
series: {
type: 'line',
data: data,
markLine: {
silent: true,
data: [
{
yAxis: limit,
lineStyle: {
color: '#47C8A3',
type: 'solid',
cap: 'round'
}
},
{
yAxis: request,
lineStyle: {
type: 'solid',
cap: 'round',
color: '#FAC858'
}
}
]
}
}
});
myChart.resize();
window.addEventListener('resize', () => {
myChart.resize();
});
});
}
}
};
</script>
<style lang="scss" scoped>
.echarts {
width: 100%;
}
.no-data {
width: 100%;
height: 220px;
display: flex;
justify-content: center;
align-items: center;
}
.chart-header {
display: flex;
justify-content: space-between;
align-items: center;
}
.chart-title {
font-weight: 600;
color: #333333;
font-size: 16px
}
</style><chartPan
ref="pieNode"
:title="tab == 'node' ? '節點' : '負載'"
/>
console.log('arr', arr); // [ {"name": "master節點","value": "1" },{ "name": "worker節點", "value": "1"}]
console.log('sum', sum); // sum 2
this.$refs.pieNode ? this.$refs.pieNode.pieInit(arr, `${this.tab === 'node' ? '節點' : ''}總數`, sum, 'node) : '';效果
<chartPan
ref="cpu"
:title="tab == 'node' ? 'CPU使用率' : 'CPU用量'"
chart-type="line"
chart-height="200px"
>
<div slot="right">
<i
class="iconfont icon-color icon-shuaxin"
@click="getUseRateCpu"
/>
<i
class="iconfont icon-color icon-fangda"
@click="handlePreViewChart('cpu', tab == 'node' ? 'CPU使用率' : 'CPU用量')"
/>
</div>
</chartPan>
console.log('chartDate', chartDate); // ['2023-04-25 17:57:01', '2023-04-25 17:58:01', '2023-04-25 17:59:01',]
console.log('chartData', chartData); // [4.92, 4.84, 5.07, 4.96, 5.06,]
this.$refs.cpu ? this.$refs.cpu.lineInit(chartDate, chartData, this.tab === 'node' ? '(%)' : '(核)', this.tab) : '';效果
handlePreViewChart 事件
<maxChart
ref="maxChart"
:chart-data="chartPublicData"
/>
// 展示大dialog 圖形
handlePreViewChart(type, title) {
console.log('maxCpuChartData', this.maxCpuChartData); //
{
subtext: "(%)",
maxChartDate : [ "2023-04-25 17:57:10", "2023-04-25 17:58:10","2023-04-25 17:59:10","2023-04-25 18:00:10",],
maxChartData : [4.92,4.84,5.07]
}
this.chartPublicData = type === 'cpu' ? { ...this.maxCpuChartData } : { ...this.maxMemChartData };
this.$refs.maxChart.title = title;
this.$refs.maxChart.dialogVisible = true;
},<template>
<el-dialog
:title="title"
:visible.sync="dialogVisible"
append-to-body
width="1000px"
@open="openDialogVisible"
>
<div class="dialog-wrap">
<div
ref="chart"
class="echarts"
/>
</div>
</el-dialog>
</template>
<script>
import echarts from 'echarts';
export default {
props: {
lineType: {
type: String,
default: 'line'
},
chartData: {
type: Object,
default: () => {}
}
},
data() {
return {
title: '',
dialogVisible: false
};
},
methods: {
openDialogVisible() {
this.$nextTick(() => {
this.lineType === 'line' ? this.lineInit(this.chartData.maxChartDate, this.chartData.maxChartData, this.chartData.subtext)
: this.markLineInit(this.chartData.maxChartDate, this.chartData.maxChartData, this.chartData.subtext, this.chartData.limit, this.chartData.request);
});
},
lineInit(date = [], data, subtext = '(%)') {
this.$nextTick(()=>{
let myChart = echarts.init(this.$refs['chart']);
myChart.clear();
myChart.setOption({
tooltip: {
trigger: 'axis',
position: function(point, params, dom, rect, size) {
var x = 0; // x坐標位置
var y = 0; // y坐標位置
var pointX = point[0];
var pointY = point[1];
// 提示框大小
var boxWidth = size.contentSize[0];
var boxHeight = size.contentSize[1];
if (boxWidth > pointX) {
x = 5;
} else { // 左邊放的下
x = pointX - boxWidth;
}
if (boxHeight > pointY) {
y = 5;
} else { // 上邊放得下
y = pointY - boxHeight;
}
return [x, y];
},
formatter: function(params) {
let color = params[0].color;
let marker = '<span ></span>';
let res = params[0].name + '<br/>' + marker + params[0].value + subtext;
return res;
}
},
dataZoom: [
{
show: date.length > 10,
type: 'slider'
}
],
grid: {
top: '13%',
left: '10%',
right: 0,
bottom: '10%'
},
xAxis: {
type: 'category',
offset: 15,
data: date,
axisLabel: {
color: '#666',
formatter: function(value) {
return value.substring(value.length - 8);
}
}
},
title: {
subtext: subtext,
subtextStyle: {
textAlign: 'right',
color: '#666'
},
padding: [0, 60],
top: 0,
itemGap: 0
},
yAxis: {
type: 'value',
boundaryGap: false,
axisLine: {
show: false
},
axisLabel: {
color: '#666'
},
axisTick: {
show: false
}
},
series: [
{
type: 'line',
symbol: 'none',
sampling: 'lttb',
itemStyle: {
color: 'rgb(110, 153, 240)'
},
areaStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{
offset: 0,
color: '#6E99F0'
},
{
offset: 1,
color: '#ffffff'
}
])
},
data: data
}
]
});
myChart.resize();
window.addEventListener('resize', () => {
myChart.resize();
});
});
},
markLineInit(date, data, subtext = '(%)', limit, request) {
data = data.filter(i=>+i.value != 0);
if (data.length < 1) {
this.isNoData = true;
}
if (this.isNoData) return;
this.$nextTick(() => {
let myChart = echarts.init(this.$refs['chart']);
myChart.clear();
myChart.setOption({
tooltip: {
trigger: 'axis',
position: function(point, params, dom, rect, size) {
var x = 0; // x坐標位置
var y = 0; // y坐標位置
var pointX = point[0];
var pointY = point[1];
// 提示框大小
var boxWidth = size.contentSize[0];
var boxHeight = size.contentSize[1];
if (boxWidth > pointX) {
x = 5;
} else { // 左邊放的下
x = pointX - boxWidth;
}
if (boxHeight > pointY) {
y = 5;
} else { // 上邊放得下
y = pointY - boxHeight;
}
return [x, y];
},
formatter: function(params) {
let color = params[0].color;
let marker = '<span ></span>';
let res = params[0].name + '<br/>' + marker + params[0].value + subtext;
return res;
}
},
color: ['#6E99F0'],
title: {
subtext: subtext,
subtextStyle: {
textAlign: 'right',
color: '#666'
},
top: 0,
left: '8%',
itemGap: 0
},
grid: {
top: '15%',
left: '15%',
right: 0,
bottom: '15%'
},
xAxis: {
type: 'category',
boundaryGap: false,
data: date,
axisLabel: {
color: '#666',
formatter: function(value) {
return value.substring(value.length - 8);
}
}
},
yAxis: {
type: 'value',
max: limit >= request ? limit + 1 : request + 1,
boundaryGap: false,
axisLine: {
show: false
},
axisLabel: {
color: '#666'
},
axisTick: {
show: false
}
},
series: {
type: 'line',
data: data,
markLine: {
silent: true,
data: [
{
yAxis: limit,
lineStyle: {
color: '#47C8A3',
type: 'solid',
cap: 'round'
}
},
{
yAxis: request,
lineStyle: {
type: 'solid',
cap: 'round',
color: '#FAC858'
}
}
]
}
}
});
myChart.resize();
window.addEventListener('resize', () => {
myChart.resize();
});
});
}
}
};
</script>
<style lang="scss" scoped>
.echarts {
width: 100%;
height: 500px;
}
</style>大圖效果
到此，相信大家對“Vue2怎么用echarts繪制折線圖,餅圖和大圖”有了更深的了解，不妨來實際操作一番吧！這里是億速云網站，更多相關內容可以進入相關頻道進行查詢，關注我們，繼續學習！
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