Apache ECharts,一个使用 JavaScript 实现的开源可视化库,可以流畅的运行在 PC 和移动设备上,兼容当前绝大部分浏览器(IE9/10/11,Chrome,Firefox,Safari等),底层依赖矢量图形库 ZRender,提供直观,交互丰富,可高度个性化定制的数据可视化图表。
https://echarts.apache.org/zh/index.html
https://echarts.apache.org/examples/zh/index.html
npm install echarts --save
2.1 页面创建一个 div 并指定其 id 属性;
2.2 加载 Echarts 组件包
import * as echarts from 'echarts';
2.3 在 onMounted 生命周期内使用 Echarts 组件。
<template>
<ga-page>
<template v-slot:body>
<div
style="margin-top:25px;"
class="ga-block">
<div id="eChartShow" style="width:100%; height:500px;"></div>
</div>
</template>
</ga-page>
</template>
<script setup>
import * as echarts from 'echarts';
onMounted(() => {
var chartDom = document.getElementById('eChartShow');
var myChart = echarts.init(chartDom);
var option;
// Generate data
let category = [];
let dottedBase = +new Date();
let lineData = [];
let barData = [];
for (let i = 0; i < 20; i++) {
let date = new Date((dottedBase += 3600 * 24 * 1000));
category.push(
[date.getFullYear(), date.getMonth() + 1, date.getDate()].join('-')
);
let b = Math.random() * 200;
let d = Math.random() * 200;
barData.push(b);
lineData.push(d + b);
}
// option
option = {
backgroundColor: '#0f375f',
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
legend: {
data: ['line', 'bar'],
textStyle: {
color: '#ccc'
}
},
xAxis: {
data: category,
axisLine: {
lineStyle: {
color: '#ccc'
}
}
},
yAxis: {
splitLine: { show: false },
axisLine: {
lineStyle: {
color: '#ccc'
}
}
},
series: [
{
name: 'line',
type: 'line',
smooth: true,
showAllSymbol: true,
symbol: 'emptyCircle',
symbolSize: 15,
data: lineData
},
{
name: 'bar',
type: 'bar',
barWidth: 10,
itemStyle: {
borderRadius: 5,
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{ offset: 0, color: '#14c8d4' },
{ offset: 1, color: '#43eec6' }
])
},
data: barData
},
{
name: 'line',
type: 'bar',
barGap: '-100%',
barWidth: 10,
itemStyle: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
{ offset: 0, color: 'rgba(20,200,212,0.5)' },
{ offset: 0.2, color: 'rgba(20,200,212,0.2)' },
{ offset: 1, color: 'rgba(20,200,212,0)' }
])
},
z: -12,
data: lineData
},
{
name: 'dotted',
type: 'pictorialBar',
symbol: 'rect',
itemStyle: {
color: '#0f375f'
},
symbolRepeat: true,
symbolSize: [12, 4],
symbolMargin: 1,
z: -10,
data: lineData
}
]
};
option && myChart.setOption(option);
});
</script>