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 # refine\_spline

 Last update: 29.04.2026 

<a id="ansys.meshing.prime.BoundaryFittedSpline.refine_spline"></a>

#### BoundaryFittedSpline.refine\_spline(part\_id, spline\_ids, refine\_spline\_params)

Refine boundary fitted splines.

Now H and P refinement are supported. Refinement along one or more dimension can be suppressed using refinement parameters in the input.

**Parameters:**

**part\_id**

Id of the part.

**spline\_ids**

Ids of the splines on which refinement is performed.

**refine\_spline\_params**

Structure containing parameters for spline refinement.

**Returns:**

**[`IGAResults`](ansys.meshing.prime.IGAResults.md#ansys.meshing.prime.IGAResults)**

Returns the IGAResults Structure.

**Return type:**

[`IGAResults`](ansys.meshing.prime.IGAResults.md#ansys.meshing.prime.IGAResults)

### Examples

```pycon
>>> from ansys.meshing.prime import BoundaryFittedSpline
>>> #connect client to server and get model from it
>>> client = Client(ip="localhost", port=50060)
>>> model = client.model
>>> boundary_fitted_spline = BoundaryFittedSpline(model = model)
>>> results = boundary_fitted_spline.refine_spline(part_id, spline_ids, refine_spline_params)

```