@three3d/effect/doc/api/effect.pathgeometry.getclosestindex.md

@three3d/effect 提供了 ThreeJS 的特效

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[Home](./index.md) &gt; [@three3d/effect](./effect.md) &gt; [PathGeometry](./effect.pathgeometry.md) &gt; [getClosestIndex](./effect.pathgeometry.getclosestindex.md)

## PathGeometry.getClosestIndex() method

获取与指定长度值最近的索引

**Signature:**

```typescript
getClosestIndex(length: number): number;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  length | number | 目标长度值 |

**Returns:**

number