# entity heading, pitch and roll

**URL:** <https://community.cesium.com/t/entity-heading-pitch-and-roll/4500>\
**Category:** CesiumJS\
**Created:** [August 15, 2016, 2:58pm UTC](https://community.cesium.com/t/entity-heading-pitch-and-roll/4500 "2016-08-15T14:58:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Boris\_Gontar](https://avatars.discourse-cdn.com/v4/letter/b/bbe5ce/32.png) [@Boris\_Gontar](https://community.cesium.com/u/Boris_Gontar)\
**Post date:** [August 15, 2016, 2:58pm UTC](https://community.cesium.com/t/entity-heading-pitch-and-roll/4500/1 "2016-08-15T14:58:07Z")

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Hello everybody,

What I know:

- the value of Entity.orientation is a Quaternion;
- knowing Entity.position and desired heading, pitch, roll (in radians), I can set orientation =

```auto
Transforms.headingPitchRollQuaternion(position, heading, pitch, roll)

What I want to know:

having Entity's position and orientation (the Quaternion), how to get values of heading, pitch and roll?

Thanks, Boris.

```

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<div class="post-metadata">

**Author:** ![abdou](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/abdou/32/2012_2.png) [@abdou](https://community.cesium.com/u/abdou)\
**Post date:** [August 17, 2016, 11:56am UTC](https://community.cesium.com/t/entity-heading-pitch-and-roll/4500/2 "2016-08-17T11:56:22Z")

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hello,  
You should check this [pull](https://github.com/AnalyticalGraphicsInc/cesium/pull/4047)

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<div class="post-metadata">

**Author:** ![Boris\_Gontar](https://avatars.discourse-cdn.com/v4/letter/b/bbe5ce/32.png) [@Boris\_Gontar](https://community.cesium.com/u/Boris_Gontar)\
**Post date:** [August 17, 2016, 12:18pm UTC](https://community.cesium.com/t/entity-heading-pitch-and-roll/4500/3 "2016-08-17T12:18:51Z")

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Great, thanks.