Hard to(How to) Set/Get relative Location/Rotation?

[alonezhby]

Hi,

It’s basic, I really want to know you guys how to handle this usually in UE4.

I want to Set/Get a actor’s relative Location/Rotation(e.g: A actor relative to B actor location/rotation), the nodes Transform Location and Inverse Transform Location can handle location.

But how to handle relative Rotation?

And I don’t understand why this two nodes get two different value?:

I’m very confused with relative location/rotation in UE4. I was wondering why not no nodes like?:

Set/GetLocationInSpace[e.g: GetPositionInSpace (vkVec3& oPosition , const vkNode3D* iSpace )], Set/GetOrientationInSpace[e.g: GetWorldOrientation ( vkVec3& oDir , vkVec3& oUp , vkVec3& oRight )], it’s easy to use and understand.

Thanks.

[Yun-Kun]

I would simply do:

• get Actor A location vector, set Actor B location to A location + wanted location
• get Actor A rotation, set Actor B rotation to A rotation + wanted rotation

Using the nodes “Get Actor Location” and “Get Actor Rotation”

[alonezhby]

@Yun-Kun
Thanks for your reply.

simply set Actor B location to A location + wanted location not work when A not align to world orientation.

[Yun-Kun]

I think you’re looking to attach as parent, attach to component or simply parent components in Hierarchy then.