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 # SoiSizingParams

 Last update: 29.04.2026 

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

### *class* ansys.meshing.prime.SoiSizingParams(model=None, centers=None, radius=None, max=None, growth\_rate=None, json\_data=None, \*\*kwargs)

Parameters for sphere of influence size control.

**Parameters:**

**model: Model**

Model to create a `SoiSizingParams` object with default parameters.

**centers: Iterable\[float\], optional**

Centers of the spheres within which the size is limited to the specified max value.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**radius: float, optional**

Radius of the sphere within which the size is limited to the specified max value.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**max: float, optional**

Maximum size within the sphere.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**growth\_rate: float, optional**

The rate at which size grows outwards from the sphere boundary.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**json\_data: dict, optional**

JSON dictionary to create a `SoiSizingParams` object with provided parameters.

### Examples

```pycon
>>> soi_sizing_params = prime.SoiSizingParams(model = model)

```

### Methods

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

NameDescription[`SoiSizingParams.centers`](ansys.meshing.prime.SoiSizingParams.centers.md#ansys.meshing.prime.SoiSizingParams.centers)Centers of the spheres within which the size is limited to the specified max value.[`SoiSizingParams.growth_rate`](ansys.meshing.prime.SoiSizingParams.growth_rate.md#ansys.meshing.prime.SoiSizingParams.growth_rate)The rate at which size grows outwards from the sphere boundary.[`SoiSizingParams.max`](ansys.meshing.prime.SoiSizingParams.max.md#ansys.meshing.prime.SoiSizingParams.max)Maximum size within the sphere.[`SoiSizingParams.radius`](ansys.meshing.prime.SoiSizingParams.radius.md#ansys.meshing.prime.SoiSizingParams.radius)Radius of the sphere within which the size is limited to the specified max value.