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 # ansys.meshing.prime.SurfaceUtilities

 Last update: 17.07.2025 

#### SurfaceUtilities.smooth\_dihedral\_face\_nodes(zonelets, params)

Perform a smoothing operation to eliminate sharp corners at locations where the input face zonelets intersect.

- **Parameters:****zonelets**: List of input face zonelet ids.
    
    **params**: Parameters to control the smoothing operation.
- **Returns:**[`SmoothDihedralFaceNodesResults`](ansys.meshing.prime.SmoothDihedralFaceNodesResults.md#ansys.meshing.prime.SmoothDihedralFaceNodesResults): Returns a SmoothDihedralFaceNodesResults.
- **Return type:**[`SmoothDihedralFaceNodesResults`](ansys.meshing.prime.SmoothDihedralFaceNodesResults.md#ansys.meshing.prime.SmoothDihedralFaceNodesResults)

### Examples

```pycon
>>> result = surf_utils.smooth_dihedral_face_nodes(zonelets, params)

```