使用echarts实现渐变色柱状图

import * as echarts from 'echarts';
<ta-col :span="6">
<div id="patientAccessTopChart" :style="{width:'100%',height:`${height}px`}"></div>
</ta-col>
//患者被访问总次数排行前10
patientAccessTopChart(patientTopData, patientTopCategory) {
let myChart = echarts.init(document.getElementById("patientAccessTopChart"));
let str = ''
let option = {
title: {
text: '患者被访问总次数排行前10',
textStyle: {
fontSize: 14,
color: '#AAAAAA'
}
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
legend: {},
grid: {
left: '2%',
right: '5%',
bottom: '2%',
containLabel: true
},
xAxis: {
type: 'value',
boundaryGap: [0, 0.01]
},
yAxis: {
type: 'category',
data: patientTopCategory,
inverse: true,//柱状图倒序排序,
nameTextStyle: {
fontSize: 9,
}
},
series: [
{
name: '',
type: 'bar',
data: patientTopData,
label: {
color: '#fff',
show: true
},
itemStyle: {
normal: {
color: new echarts.graphic.LinearGradient(
0, 0, 0, 1,
[
{offset: 0, color: '#367EEF'},
{offset: 1, color: '#FF6326'}
]
)
}
},
}
]
};
myChart.clear();
myChart.setOption(option);
},