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 # BoundaryFittedSplineParams

 Last update: 17.07.2025 

<a id="ansys.meshing.prime.BoundaryFittedSplineParams"></a>

### *class* ansys.meshing.prime.BoundaryFittedSplineParams(model=None, degree\_u=None, degree\_v=None, degree\_w=None, refinement\_fraction\_u=None, refinement\_fraction\_v=None, refinement\_fraction\_w=None, control\_points\_count\_u=None, control\_points\_count\_v=None, control\_points\_count\_w=None, n\_refine=None, control\_point\_selection\_type=None, json\_data=None, \*\*kwargs)

Boundary fitted spline fitting parameters.

- **Parameters:**
    
    **model: Model**: Model to create a `BoundaryFittedSplineParams` object with default parameters.
    
    **degree\_u: int, optional**: Degree of spline in u direction.
    
    **degree\_v: int, optional**: Degree of spline in v direction.
    
    **degree\_w: int, optional**: Degree of spline in w direction.
    
    **refinement\_fraction\_u: float, optional**: Fraction of input mesh size that sets the control points size in u direction. This is used in program controlled control points selection mode.
    
    **refinement\_fraction\_v: float, optional**: Fraction of input mesh size that sets the control points size in v direction. This is used in program controlled control points selection mode.
    
    **refinement\_fraction\_w: float, optional**: Fraction of input mesh size that sets the control points size in w direction. This is used in program controlled control points selection mode.
    
    **control\_points\_count\_u: int, optional**: Spline control points count in U direction. Used in manual control points selection mode.
    
    **control\_points\_count\_v: int, optional**: Spline control points count in V direction. Used in manual control points selection mode.
    
    **control\_points\_count\_w: int, optional**: Spline control points count in W direction. Used in manual control points selection mode.
    
    **n\_refine: int, optional**: Spline refinement level for rendering.
    
    **control\_point\_selection\_type: ControlPointSelection, optional**: Spline control points selection type.
    
    **json\_data: dict, optional**: JSON dictionary to create a `BoundaryFittedSplineParams` object with provided parameters.

### Examples

```pycon
&gt;&gt;&gt; boundary_fitted_spline_params = prime.BoundaryFittedSplineParams(model = model)

```

### Methods

NameDescription[`BoundaryFittedSplineParams.print_default`](ansys.meshing.prime.BoundaryFittedSplineParams.print_default.md#ansys.meshing.prime.BoundaryFittedSplineParams.print_default)()Print the default values of `BoundaryFittedSplineParams` object.[`BoundaryFittedSplineParams.set_default`](ansys.meshing.prime.BoundaryFittedSplineParams.set_default.md#ansys.meshing.prime.BoundaryFittedSplineParams.set_default)(\[...\])Set the default values of the `BoundaryFittedSplineParams` object.### Attributes

NameDescription[`BoundaryFittedSplineParams.control_point_selection_type`](ansys.meshing.prime.BoundaryFittedSplineParams.control_point_selection_type.md#ansys.meshing.prime.BoundaryFittedSplineParams.control_point_selection_type)Spline control points selection type.[`BoundaryFittedSplineParams.control_points_count_u`](ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_u.md#ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_u)Spline control points count in U direction.[`BoundaryFittedSplineParams.control_points_count_v`](ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_v.md#ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_v)Spline control points count in V direction.[`BoundaryFittedSplineParams.control_points_count_w`](ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_w.md#ansys.meshing.prime.BoundaryFittedSplineParams.control_points_count_w)Spline control points count in W direction.[`BoundaryFittedSplineParams.degree_u`](ansys.meshing.prime.BoundaryFittedSplineParams.degree_u.md#ansys.meshing.prime.BoundaryFittedSplineParams.degree_u)Degree of spline in u direction.[`BoundaryFittedSplineParams.degree_v`](ansys.meshing.prime.BoundaryFittedSplineParams.degree_v.md#ansys.meshing.prime.BoundaryFittedSplineParams.degree_v)Degree of spline in v direction.[`BoundaryFittedSplineParams.degree_w`](ansys.meshing.prime.BoundaryFittedSplineParams.degree_w.md#ansys.meshing.prime.BoundaryFittedSplineParams.degree_w)Degree of spline in w direction.[`BoundaryFittedSplineParams.n_refine`](ansys.meshing.prime.BoundaryFittedSplineParams.n_refine.md#ansys.meshing.prime.BoundaryFittedSplineParams.n_refine)Spline refinement level for rendering.[`BoundaryFittedSplineParams.refinement_fraction_u`](ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_u.md#ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_u)Fraction of input mesh size that sets the control points size in u direction.[`BoundaryFittedSplineParams.refinement_fraction_v`](ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_v.md#ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_v)Fraction of input mesh size that sets the control points size in v direction.[`BoundaryFittedSplineParams.refinement_fraction_w`](ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_w.md#ansys.meshing.prime.BoundaryFittedSplineParams.refinement_fraction_w)Fraction of input mesh size that sets the control points size in w direction.