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# ARRaycastQuery.Target.estimatedPlane

A raycast target that specifies nonplanar surfaces, or planes about which ARKit can only estimate.

```
case estimatedPlane
```

## Discussion

A raycast with this target intersects feature points around the ray that ARKit estimates may be a real-world surface.

When combined with [`ARRaycastQuery.TargetAlignment.any`](/documentation/ARKit/ARRaycastQuery/TargetAlignment-swift.enum/any), ARKit bases estimated plane alignment on the normal of the surface.

When you set your world-tracking configuration’s [`sceneReconstruction`](/documentation/ARKit/ARWorldTrackingConfiguration/sceneReconstruction) to one of the `mesh` options, ARKit allows a raycast with this target (and target-alignment [`ARRaycastQuery.TargetAlignment.any`](/documentation/ARKit/ARRaycastQuery/TargetAlignment-swift.enum/any)) to intersect the scene mesh. Then the raycast result can include points even on nonplanar surfaces or surfaces that have few or no features, such as a white wall. If you set [`sceneReconstruction`](/documentation/ARKit/ARWorldTrackingConfiguration/sceneReconstruction) to [`ARSceneReconstructionNone`](/documentation/ARKit/ARSceneReconstruction/ARSceneReconstructionNone), raycasts ignore the scene mesh.

---

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