feature request: adding {"rotation-alignment": "map"} option to mapboxgl.Marker()

[kkdd]

Hello.
For drawing arrowhead markers, I believe that mapboxgl.Marker() should have {"rotation-alignment": "map"} option. See the following examples:

https://gist.github.com/kkdd/928c67088c2debae4204bef55c170106

[emperor1412]

@mourner
This feature make sense.

[mourner]

Maybe worth implementing in the core. However this would be easy enough to do on the application side — subscribing to the move event and rotating the marker element with a CSS transform.

[emperor1412]

But if you don't have "icon-rotation-alignment": "map" then when rotate map's camera, the marker always face to camera like billboard, and rotate the marker then won't work correctly, no ?

[kirillegorov-dev]

We still need the ability to set marker's direction.

[seedgabo]

any update of this?