feat(core): 3D enable MapController using new rotatePivot option #9938
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felixpalmer
commented
Jan 15, 2026
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| import {Deck} from '@deck.gl/core'; | ||
| import {Tile3DLayer} from '@deck.gl/geo-layers'; | ||
| import {ScenegraphLayer} from '@deck.gl/mesh-layers'; |
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Test app for demo only, will not be commiting
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Background
Building on top of the 3D picking infrastructure in #9937
MapControllerzooms to the position of the cursor, but when a rotation/tilt is triggered using the Shift Key, the center is always fixed at the center of the viewport, with z=0.For flat scenes this works OK, but when we are using a layer that has some non-zero elevation, for example
TerrainLayerorTile3DLayerthe movement feels unnatural.This PR adds a new prop to the
MapController:rotationPivot: 'center' | '2d' | '3d'which means the rotate/tilt operation is anchored on:'center': Center of viewport, with z=0 irrespective of mouse position (current behavior)'2d': Mouse position, with z=0'3d': Mouse position, with z raycast onto sceneThe following videos demonstrate the behavior:
Mouse grabbed in bottom left corner, but pivot is in center of screen:
Screen.Recording.2026-01-15.at.16.01.09.mov
Pivot is now correctly at mouse location, but behind building as z=0 is assumed
Screen.Recording.2026-01-15.at.16.01.29.mov
Pivot is now on front side of the building
Screen.Recording.2026-01-15.at.16.01.48.mov
Works even with multiple layers, why not pivot on planes in the sky!
Screen.Recording.2026-01-15.at.16.02.16.mov
Change List
rotationPivotpropMapController_pickPositionForControllertoDeckto provide way forMapControllerto access pickingrotationPivotPositioninInteractionStateto enable drawing helper layer showing pivot locationLimitations