liaomy0207 opened a new issue #14573:
URL: https://github.com/apache/echarts/issues/14573
### Version
5.0.2
### Steps to reproduce
官网示例中，打开“自定义系列”的“性能分析图”。
这边我把“dataCount”改成1000，为了方便展示问题，这里不用原例中的随机数data。详细配置如下
var data = [];
var dataCount = 1000;
var startTime = new Date();
var categories = ['categoryA', 'categoryB', 'categoryC'];
var types = [
{name: 'JS Heap', color: '#7b9ce1'},
{name: 'Documents', color: '#bd6d6c'},
{name: 'Nodes', color: '#75d874'},
{name: 'Listeners', color: '#e0bc78'},
{name: 'GPU Memory', color: '#dc77dc'},
{name: 'GPU', color: '#72b362'}
];
// Generate mock data
categories.forEach(function (category, index) {
let start = 0;
for (var i = 0; i < dataCount; i ) {
data.push({
name: "" index i,
value: [
index,
i start,
i 1 start,
1
],
itemStyle: {
normal: {
color: "black"
}
}
});
start
}
});
function renderItem(params, api) {
var categoryIndex = api.value(0);
var start = api.coord([api.value(1), categoryIndex]);
var end = api.coord([api.value(2), categoryIndex]);
var height = api.size([0, 1])[1] * 0.6;
var rectShape = echarts.graphic.clipRectByRect({
x: start[0],
y: start[1] - height / 2,
width: end[0] - start[0],
height: height
}, {
x: params.coordSys.x,
y: params.coordSys.y,
width: params.coordSys.width,
height: params.coordSys.height
});
return rectShape && {
type: 'rect',
transition: ['shape'],
shape: rectShape,
style: api.style()
};
}
option = {
tooltip: {
formatter: function (params) {
return params.marker params.name ': ' params.value[3] '
ms';
}
},
title: {
text: 'Profile',
left: 'center'
},
dataZoom: [{
type: 'slider',
filterMode: 'weakFilter',
showDataShadow: false,
top: 400,
labelFormatter: ''
}, {
type: 'inside',
filterMode: 'weakFilter'
}],
grid: {
height: 300
},
xAxis: {
min: 0,
scale: true,
axisLabel: {
formatter: function (val) {
return val ' ms';
}
}
},
yAxis: {
data: categories
},
series: [{
type: 'custom',
renderItem: renderItem,
itemStyle: {
opacity: 0.8
},
encode: {
x: [1, 2],
y: 0
},
data: data
}]
};
### What is expected?
在实际项目中有用到这个自定义图。数据量少的时候正常，数据量比较多（几千条）的时候就会报错。
### What is actually happening?
通过鼠标缩放，一直缩放，会报错
Cannot read property '3' of undefined
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