一、心电图效果之单线条
```html:run
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Echarts实现心电图效果</title>
<script src="https://cdn.bootcss.com/echarts/3.7.1/echarts.js"></script>
</head>
<body>
<div id="totalFlowRate" style="height:300px;"></div>
</body>
</html>
<script type="text/javascript">
var totalFlowRate = echarts.init(document.getElementById('totalFlowRate'));
var xAxisData=[];
var yAxisData=[];
for(var i=500 ;i>0;i--){
xAxisData.push(i+"秒前");
}
for(i=1;i<501;i++){
yAxisData.push(Math.round(Math.random()*1000));
}
var totalFlowRateOption = {
animation:false,
title: {
text: '总流量(kbps)'/*,
left:"110px"*/
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross'
}
},
grid: {
left: 50/*"50px"*/,
right: 15/*"15px"*/
},
legend: {
data:['当前流量']
},
xAxis: {
boundaryGap: false,
data: xAxisData
},
yAxis: {
boundaryGap:false
},
series: {
symbol:"none",/*去掉小圆点*/
name: '当前流量',
type: 'line',
itemStyle : {
normal : {
lineStyle:{
width:2,//折线宽度
color:"#FF0000"//折线颜色
}
}
},
data: yAxisData/*,
smooth:true//0-1之间的数字或true或false,显示为平滑的曲线*/
}
};
totalFlowRate.setOption(totalFlowRateOption);
setInterval(function(){
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
totalFlowRate.setOption(totalFlowRateOption);
},100);
/*setInterval(function(){
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
var myselfOption = totalFlowRate.getOption();
myselfOption.series[0].data=yAxisData;
totalFlowRate.setOption(myselfOption);
},100);*/
</script>
```
二、心电图效果之单线条下有阴影
```html:run
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Echarts实现心电图效果</title>
<script src="https://cdn.bootcss.com/echarts/3.7.1/echarts.js"></script>
</head>
<body>
<div id="totalFlowRate" style="height:300px;"></div>
</body>
</html>
<script type="text/javascript">
var totalFlowRate = echarts.init(document.getElementById('totalFlowRate'));
var xAxisData=[];
var yAxisData=[];
for(var i=100 ;i>0;i--){
xAxisData.push(i+"秒前");
}
for(i=1;i<101;i++){
yAxisData.push(Math.round(Math.random()*1000));
}
setInterval(function(){
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
var totalFlowRateOption = {
animation:false,
title: {
text: '总流量(kbps)'/*,
left:"110px"*/
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross'
}
},
grid: {
left: 50/*"50px"*/,
right: 15/*"15px"*/
},
legend: {
data:['当前流量'],
textStyle:{color:"#66b3ff"}/*图例(legend)说明文字的颜色*/
},
xAxis: {
boundaryGap: false,
data: xAxisData,
splitLine:{show: true}/*网格线*/
},
yAxis: {
boundaryGap:false,
splitLine:{show: true}/*网格线*/
},
series: {
/*itemStyle: {normal: {areaStyle: {type: 'default'}}},*/
itemStyle : {
normal : {
lineStyle:{
color:'#92c2ff'/*折线的颜色*/
},
color:"#66b3ff"/*图例(legend)的颜色,不是图例说明文字的颜色*/
}
},
areaStyle: {normal: {
color: new echarts.graphic.LinearGradient(
/* 声明渐变色,传入5个参数。
前4个参数用于配置渐变色的起止位置, 这4个参数依次对应右/下/左/上四个方位。
其中0 0 0 1则代表渐变色从正上方开始。
第5个参数则是一个数组, 用于配置颜色的渐变过程,包含起止位置和起止颜色 */
0, 0, 0, 1,
[
{offset: 0, color: '#66b3ff'},
/* {offset: 0.5, color: '#c4e1ff'},*/
{offset: 1, color: '#ecf5ff'}
]
)
}},
symbol:"none",/*去掉小圆点*/
name: '当前流量',
type: 'line',
data: yAxisData/*,
smooth:true//显示为平滑的曲线*/
}
};
totalFlowRate.setOption(totalFlowRateOption);
},100);
</script>
```
三、鼠标移入移出变背景色
```html:run
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Echarts实现心电图效果</title>
<script src="https://cdn.bootcss.com/echarts/3.7.1/echarts.js"></script>
</head>
<body>
<div id="totalFlowRate" style="height:300px;"></div>
</body>
</html>
<script type="text/javascript">
var totalFlowRate = echarts.init(document.getElementById('totalFlowRate'));
var xAxisData=[];
var yAxisData=[];
for(var i=100 ;i>0;i--){
xAxisData.push(i+"秒前");
}
for(i=1;i<101;i++){
yAxisData.push(Math.round(Math.random()*1000));
}
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
var totalFlowRateOption = {
backgroundColor: '#ffffff',
animation:false,
title: {
text: '总流量(kbps)'/*,
left:"110px"*/
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross'
}
},
grid: {
left: 50/*"50px"*/,
right: 15/*"15px"*/
},
legend: {
data:['当前流量'],
textStyle:{color:"#66b3ff"}/*图例(legend)说明文字的颜色*/
},
xAxis: {
boundaryGap: false,
data: xAxisData,
splitLine:{show: true}/*网格线*/
},
yAxis: {
boundaryGap:false,
splitLine:{show: true}/*网格线*/
},
series: {
/*itemStyle: {normal: {areaStyle: {type: 'default'}}},*/
itemStyle : {
normal : {
lineStyle:{
color:'#92c2ff'/*折线的颜色*/
},
color:"#66b3ff"/*图例(legend)的颜色,不是图例说明文字的颜色*/
}
},
areaStyle: {normal: {
color: new echarts.graphic.LinearGradient(
0, 0, 0, 1,
[
{offset: 0, color: '#66b3ff'},
/* {offset: 0.5, color: '#c4e1ff'},*/
{offset: 1, color: '#ecf5ff'}
]
)
}},
symbol:"none",/*去掉小圆点*/
name: '当前流量',
type: 'line',
data: yAxisData/*,
smooth:true//显示为平滑的曲线*/
}
};
totalFlowRate.setOption(totalFlowRateOption);
totalFlowRate.getZr().on('mousemove', function (params) {
var pointInPixel = [params.offsetX, params.offsetY];
if (totalFlowRate.containPixel('grid', pointInPixel)) {
totalFlowRateOption.backgroundColor = '#F6F8FC';
totalFlowRate.setOption(totalFlowRateOption);
}
});
totalFlowRate.getZr().on('mouseout', function (params) {
var pointInPixel = [params.offsetX, params.offsetY];
if (!totalFlowRate.containPixel('grid', pointInPixel)) {
totalFlowRateOption.backgroundColor = '#ffffff';
totalFlowRate.setOption(totalFlowRateOption);
}
});
</script>
```
四、心电图效果之7500条数据同页显示
```html:run
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Echarts实现心电图效果</title>
<script src="https://cdn.bootcss.com/echarts/3.7.1/echarts.js"></script>
</head>
<body>
<div id="totalFlowRate" style="height:300px;"></div>
</body>
</html>
<script type="text/javascript">
var totalFlowRate = echarts.init(document.getElementById('totalFlowRate'));
var xAxisData=[];
var yAxisData=[];
for(var i=7500 ;i>0;i--){
xAxisData.push(i+"秒前");
}
for(i=1;i<7501;i++){
yAxisData.push(Math.round(Math.random()*1000));
}
var totalFlowRateOption = {
animation:false,
title: {
text: '总流量(kbps)'/*,
left:"110px"*/
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'cross'
}
},
grid: {
left: 50/*"50px"*/,
right: 15/*"15px"*/
},
legend: {
data:['当前流量']
},
xAxis: {
boundaryGap: false,
data: xAxisData
},
yAxis: {
boundaryGap:false
},
series: {
symbol:"none",/*去掉小圆点*/
name: '当前流量',
type: 'line',
data: yAxisData/*,
smooth:true//显示为平滑的曲线*/
}
};
totalFlowRate.setOption(totalFlowRateOption);
setInterval(function(){
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
totalFlowRate.setOption(totalFlowRateOption);
},100);
/*setInterval(function(){
yAxisData.push(Math.round(Math.random()*1000));
yAxisData.shift();
var myselfOption = totalFlowRate.getOption();
myselfOption.series[0].data=yAxisData;
totalFlowRate.setOption(myselfOption);
},100);*/
</script>
```
43ECharts:心电图效果
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