@cearth/tools/doc/api/tools.quaterniontoheadingpitchroll.md

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## quaternionToHeadingPitchRoll() function

四元数转 HeadingPitchRoll

**Signature:**

```typescript
export declare function quaternionToHeadingPitchRoll(quate: Quaternion, referFrame: Matrix4, result?: HeadingPitchRoll): HeadingPitchRoll;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

quate


</td><td>

Quaternion


</td><td>


</td></tr>
<tr><td>

referFrame


</td><td>

Matrix4


</td><td>


</td></tr>
<tr><td>

result


</td><td>

HeadingPitchRoll


</td><td>

_(Optional)_


</td></tr>
</tbody></table>
**Returns:**

HeadingPitchRoll