区域填充颜色重叠异常

[Lost-Kun]

Version

4.8.0

Steps to reproduce

option = {
    xAxis: {
        type: 'category',
        boundaryGap: false,
        data: ['周一','周二','周三','周四','周五','周六','周日']
    },
    yAxis: {
        type: 'value'
    },
    series: [{
        name: '成交',
        type: 'line',
        smooth: true,
        connectNulls: true,
        stack: "stack",
        areaStyle: {},
        data: [10, "-", "-", 710, "-", "-", 54]
    },
    {
        name: '预购',
        type: 'line',
        smooth: true,
        connectNulls: true,
        stack: "stack",
        areaStyle: {},
        data: [10, "-", "-", 710, "-", "-", 54]
    }]
};

What is expected?

重叠后应该只有两种颜色，而非三种

What is actually happening?

重叠后出现三种颜色

[echarts-bot]

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[quillblue]

重现了Bug，看上去是在数据里有NaN时connectNull设置为true时的一个堆叠bug（累积线没有考虑null）
临时的解决方案是传入数据前把非数值数据转换成0（也不是很好的过渡）

[Lost-Kun]

重现了Bug，看上去是在数据里有NaN时connectNull设置为true时的一个堆叠bug（累积线没有考虑null）
临时的解决方案是传入数据前把非数值数据转换成0（也不是很好的过渡）

转换成0确实不是好办法

[quillblue]

重现了Bug，看上去是在数据里有NaN时connectNull设置为true时的一个堆叠bug（累积线没有考虑null）
临时的解决方案是传入数据前把非数值数据转换成0（也不是很好的过渡）

转换成0确实不是好办法

对的，不过在这个问题被修复之前目前想不出什么更好的临时方案了。如果你乐意为ECharts做出贡献，可以尝试自己修复这个Bug并通过PR提交给社区。

For community, please be kind to remove waiting-for tag and evaluate proper milestone & bug diffculty tag for this issue.

[lefex]

I am fixing this bug