常用的echarts图表的实现代码
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2022-03-06 12:10:38
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本文代码基于ehcarts4.0开发
饼图
// 饼图配置项
var option = {
series: [
{
name:'风险预警占比',
type: 'pie',
radius: ['25%', '40%'],
center: ['50%', '50%'],
roseType: false,
data: [
{
value: 40,
name: '红色预警'
}, {
value: 30,
name: '橙色预警'
}, {
value: 10,
name: '黄色预警'
}, {
value: 50,
name: '蓝色预警'
}
],
label: {
fontSize: 12,
color:'#545454',
formatter: function (param) {
return param.name + '(' + Math.round(param.percent) + '%' + ')'
+ '\n' + param.value + '个';
}
},
labelLine: {
smooth: false,
lineStyle: {
width: 2
}
},
itemStyle: {
color:function(params){
switch (params.name) {
case '红色预警':
return '#D70002';
case '橙色预警':
return '#FF9309';
case '黄色预警':
return '#FFFB09';
case '蓝色预警':
return '#035EF7';
default:
break;
}
}
},
}
]
}
堆叠柱状图
//堆叠柱状图配置项
var option = {
backgroundColor: '#fff',
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
legend: {
bottom: '10',
itemGap: 30,
data: ['一级', '二级', '三级', '四级']
},
grid: { //图表的位置
top: 30,
left: 10,
right: 80,
bottom: 60,
containLabel: true
},
dataZoom: [
{
type: 'inside'
}, {
type: 'slider',
start: 0,
bottom: 40,
height: '15px',
fillerColor:'rgba(202,223,255,.8)',
borderColor:'#b6d2fc',
handleStyle:{
color:'#b6d2fc'
},
dataBackground:{
lineStyle:{
color:'#b6d2fc'
},
areaStyle:{
color:'rgba(202,223,255,.8)'
}
}
}
],
yAxis: [
{
type: 'value',
name: '备案个数',
nameTextStyle: {
fontSize: 12,
fontWeight: 'bold',
color: '#454545'
},
splitLine: {
show: false
},
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
}
}
],
xAxis: [
{
type: 'category',
name: '区县名称',
nameTextStyle: {
fontSize: 12,
fontWeight: 'bold',
color: '#454545'
},
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
},
data: ['鼓楼区','玄武区','秦淮区']
}
],
series: [
{
name: '一级',
type: 'bar',
stack: '总量',
barWidth: '10px',
itemStyle:{
color:'#D70002'
},
data: [2,4,6]
},
{
name: '二级',
type: 'bar',
stack: '总量',
barWidth: '10px',
data: [2,4,1]
},
{
name: '三级',
type: 'bar',
stack: '总量',
barWidth: '10px',
itemStyle:{
color:'#FFFB09'
},
data: [1,5,7]
},
{
name: '四级',
type: 'bar',
stack: '总量',
barWidth: '10px',
itemStyle:{
color:'#FF9309'
},
data: [1]
}
]
}
渐变柱状图
//配置项
var option = {
backgroundColor: '#fff',
color: [
new echarts.graphic.LinearGradient(
0, 0, 0, 1,
[
{ offset: 0, color: '#23E9EE' },
{ offset: 1, color: '#0460F7' }
]
)
],
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
legend: {
bottom: '10',
itemGap: 30,
data: ['一级', '二级', '三级', '四级']
},
grid: { //图表的位置
top: 30,
left: 10,
right: 80,
bottom: 60,
containLabel: true
},
dataZoom: [
{
type: 'inside'
}, {
type: 'slider',
start: 0,
bottom: 40,
height: '15px',
fillerColor:'rgba(202,223,255,.8)',
borderColor:'#b6d2fc',
handleStyle:{
color:'#b6d2fc'
},
dataBackground:{
lineStyle:{
color:'#b6d2fc'
},
areaStyle:{
color:'rgba(202,223,255,.8)'
}
}
}
],
yAxis: [
{
type: 'value',
name: '备案个数',
nameTextStyle: {
fontSize: 12,
fontWeight: 'bold',
color: '#454545'
},
splitLine: {
show: false
},
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
}
}
],
xAxis: [
{
type: 'category',
name: '区县名称',
nameTextStyle: {
fontSize: 12,
fontWeight: 'bold',
color: '#454545'
},
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
},
data: ['鼓楼区','玄武区','秦淮区']
}
],
series: [
{
name: '报警',
type: 'bar',
stack: '总量',
barWidth: '10px',
data: [1,2,4]
}
]
};
线图
//线图配置项
var option = {
tooltip: {
trigger: 'axis'
},
color: [
new echarts.graphic.LinearGradient(
0, 0, 0, 1,
[
{offset: 0, color: '#23E9EE'},
{offset: 1, color: '#0460F7'}
]
)
],
grid: {
top: 30,
left: 10,
right: 30,
bottom: 50,
containLabel: true
},
dataZoom: [
{
type: 'inside'
}, {
type: 'slider',
start: 0,
bottom: 30,
height: '15px',
fillerColor:'rgba(202,223,255,.8)',
borderColor:'#b6d2fc',
handleStyle:{
color:'#b6d2fc'
},
dataBackground:{
lineStyle:{
color:'#b6d2fc'
},
areaStyle:{
color:'rgba(202,223,255,.8)'
}
}
}
],
yAxis: [
{
type: 'value',
splitLine: {
show: false
},
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
}
}
],
xAxis: {
type: 'category',
boundaryGap:false,
axisLine: {
lineStyle: {
color: '#B3B3B3'
}
},
axisLabel: {
color: '#454545'
},
data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
},
series: [
{
name: '报警个数',
type: 'line',
symbol: 'emptyCircle',
symbolSize: 2,
showSymbol: false,
smooth: true,
areaStyle: {
color: new echarts.graphic.LinearGradient(
0, 0, 0, 1,
[
{offset: 0, color: 'rgba(35,233,238,.4)'},
{offset: 1, color: 'rgba(4,96,247,.4)'}
]
)
},
lineStyle: {
width: 1,
color: '#59cef5'
},
itemStyle: {
borderColor: '#59cef5',
borderWidth: 2
},
data:[2,4,3,2,1,4,2]
}
]
}
创建实例
var chart = echarts.init(document.getElementById('chartBox'));
设置图表实例的配置项
设置图表实例的配置项以及数据，万能接口，所有参数和数据的修改都可以通过setOption完成，ECharts 会合并新的参数和数据，然后刷新图表chart.setOption(option);
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