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 # RefineTetMeshParams

 Last update: 20.02.2026 

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

### *class* ansys.meshing.prime.RefineTetMeshParams(model=None, nisr=None, niss=None, nist=None, tolerance=None, json\_data=None, \*\*kwargs)

Parameters for meshing the solid spline.

- **Parameters:**
    
    **model: Model**: Model to create a `RefineTetMeshParams` object with default parameters.
    
    **nisr: int, optional**: Interpolation elements in the local r-direction.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **niss: int, optional**: Interpolation elements in the local s-direction.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **nist: int, optional**: Interpolation elements in the local t-direction.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **tolerance: float, optional**: Tolerance for boundary refinement.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **json\_data: dict, optional**: JSON dictionary to create a `RefineTetMeshParams` object with provided parameters.

### Examples

```pycon
&gt;&gt;&gt; refine_tet_mesh_params = prime.RefineTetMeshParams(model = model)

```

### Methods

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

NameDescription[`RefineTetMeshParams.nisr`](ansys.meshing.prime.RefineTetMeshParams.nisr.md#ansys.meshing.prime.RefineTetMeshParams.nisr)Interpolation elements in the local r-direction.[`RefineTetMeshParams.niss`](ansys.meshing.prime.RefineTetMeshParams.niss.md#ansys.meshing.prime.RefineTetMeshParams.niss)Interpolation elements in the local s-direction.[`RefineTetMeshParams.nist`](ansys.meshing.prime.RefineTetMeshParams.nist.md#ansys.meshing.prime.RefineTetMeshParams.nist)Interpolation elements in the local t-direction.[`RefineTetMeshParams.tolerance`](ansys.meshing.prime.RefineTetMeshParams.tolerance.md#ansys.meshing.prime.RefineTetMeshParams.tolerance)Tolerance for boundary refinement.