echarts5 中，鼠标悬浮到 折线上，会默认强制触发 emphasis，无法取消，而 echarts4 就不会

[yongnny]

Version

5.0.2

Steps to reproduce

echarts4 鼠标悬浮到 折线上，无特效

https://echarts.apache.org/v4/examples/zh/editor.html?c=line-stack

echarts5 鼠标悬浮到 折线上，会默认强制触发 emphasis

https://echarts.apache.org/examples/zh/editor.html?c=line-stack

我现在只能把 emphasis.lineStyle 设置为 lineStyle 一样，才绕过这个问题

What is expected?

提供一个 开关，例如 饼图 中的 silent，当为 true 时，鼠标悬浮到 折线上，不会被 emphasis

What is actually happening?

鼠标悬浮到 折线上，会默认强制触发 emphasis

[echarts-bot[bot]]

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[echarts-bot[bot]]

@yongnny It seems you are not using English, I've helped translate the content automatically. To make your issue understood by more people, we'd like to suggest using English next time. 🤗

TRANSLATED

**TITLE** In echarts5, the mouse hovers over the line, which forces the trigger by default, cannot be canceled, and echarts4 does not **BODY** ### Version 5.0.2 ### Steps to reproduce The echarts4 mouse hovers over the line with no special effects https://echarts.apache.org/v4/examples/zh/editor.html?c=line-stack Echarts5 hovers over the line and forces the trigger by default https://echarts.apache.org/examples/zh/editor.html?c=line-stack I can only get around this problem now by setting the value.lineStyle to lineStyle ### What is expected? Provides a switch, such as silent in a pie chart, and when true, the mouse is suspended on the line and is not subjected to an add ### What is actually happening? Hovering over the line forces the trigger of the event by default

[pissang]

@plainheart 我感觉可能 line 还是不能默认 hover 加粗

[plainheart]

@pissang 我现在也是这么想的，之后可以讨论下如何优化这个逻辑。 这个 issue 说的鼠标 hover 到 line 上时，默认触发了 emphasis 状态，是不是也可以允许设置 silent 去禁止？当前好像只能整个系列 silent 而不能作用到 lineStyle 或者 itemStyle(Symbol) 上。 我在 #14448 这个 PR 里修改了一点逻辑，大体上是只有 emphasis.focus 启用且系列数量大于1时加粗...

[pissang]

嗯，系列数量大于 1 的时候经常会把tooltip.trigger设置为'axis'，这个时候高亮就所有系列都高亮了，结果还是所有系列都变粗

[pissang]

@plainheart 试了几个例子，感觉主要是数据密集的时候默认加粗的效果不太好，如果数据不是很多默认加粗效果还可以

[plainheart]

对，之前提到过这个，但好像不太好知道数据怎样算是密集？