echarts-bot[bot] commented on issue #21248:
URL: https://github.com/apache/echarts/issues/21248#issuecomment-3262570630

   @whosalex It seems you are not using English, I've helped translate the 
content automatically. To make your issue understood by more people and get 
helped, we'd like to suggest using English next time. 🤗
   <details><summary><b>TRANSLATED</b></summary><br>
   
   **TITLE**
   
   [Feature] lines animations need to execute the previously incomplete 
animation after setting setOption. The animation stopped abruptly halfway 
through the setOption, which was a bit abrupt
   
   **BODY**
   
   ### What problem does this feature solve?Scenario: A map effect of flying 
lines on a website under attack. When new attack data comes in and adds flying 
lines, the previous animations that have not finished executing are directly 
reset after calling 
setOption.![threatMap](https://youke1.picui.cn/s1/2025/09/06/68bc4a2d3edd3.png)###
 What does the proposed API look like?```series: [    {      id: 2,      type: 
'lines',      coordinateSystem: 'geo',      silent: true,      effect: {        
show: true,        trailWidth: 2,        trailOpacity: 0.5,        trailLength: 
0.02,        period: 3,        symbol: 'arrow',        symbolSize: 6,        
loop: false,      },      blendMode: 'source-over',      lineStyle: {        
width: 2,        color: function (params: { value?: [number[], number[], 
string] }) {          return params.value?.[2] || 'rgb(255,183,45)'        },   
     curveness: 0.5,      },      zlevel: 1,      animation: true,      
animationDuration: 3000,      /** Add configu
 ration item to implement incremental data animation, allowing existing data 
animations to continue executing */      animationIncrementalUpdate: true,      
data: [],    },]```
   </details>


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