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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [VolumeMaterial](./volume.volumematerial.md) &gt; [toMapPosition](./volume.volumematerial.tomapposition.md)

## VolumeMaterial.toMapPosition() method

将材质空间下的坐标转为 map 空间下的坐标

**Signature:**

```typescript
toMapPosition(coord: IVector3): Vector3;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  coord | IVector3 | 材质空间下的坐标 |

**Returns:**

Vector3