@three3d/tools
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@three3d/tools 提供了 ThreeJS 常用的工具库
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[Home](./index.md) > [@three3d/tools](./tools.md) > [CourseAzimuthMap](./tools.courseazimuthmap.md) > [roll](./tools.courseazimuthmap.roll.md)
## CourseAzimuthMap.roll property
横滚角
**Signature:**
```typescript
roll?: Define | null;
```
## Remarks
- 旋转轴 后方向量 - 起始向量:上方向量