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 # ShellBLControlGrowthParams

 Last update: 10.09.2025 

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

### *class* ansys.meshing.prime.ShellBLControlGrowthParams(model=None, n\_layers=None, offset\_type=None, growth\_rate=None, first\_height=None, json\_data=None, \*\*kwargs)

Growth parameters for ShellBL control.

- **Parameters:**
    
    **model: Model**: Model to create a `ShellBLControlGrowthParams` object with default parameters.
    
    **n\_layers: int, optional**: Number of layers to be generated.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **offset\_type: ShellBLOffsetType, optional**: Offset type for ShellBL.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **growth\_rate: float, optional**: Ratio of height of the current layer to the previous layer.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **first\_height: float, optional**: Height of first layer of ShellBL.   
    **This is a beta parameter**. **The behavior and name may change in the future**.
    
    **json\_data: dict, optional**: JSON dictionary to create a `ShellBLControlGrowthParams` object with provided parameters.

### Examples

```pycon
&gt;&gt;&gt; shell_bl_control_growth_params = prime.ShellBLControlGrowthParams(model = model)

```

### Methods

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

NameDescription[`ShellBLControlGrowthParams.first_height`](ansys.meshing.prime.ShellBLControlGrowthParams.first_height.md#ansys.meshing.prime.ShellBLControlGrowthParams.first_height)Height of first layer of ShellBL.[`ShellBLControlGrowthParams.growth_rate`](ansys.meshing.prime.ShellBLControlGrowthParams.growth_rate.md#ansys.meshing.prime.ShellBLControlGrowthParams.growth_rate)Ratio of height of the current layer to previous layer.[`ShellBLControlGrowthParams.n_layers`](ansys.meshing.prime.ShellBLControlGrowthParams.n_layers.md#ansys.meshing.prime.ShellBLControlGrowthParams.n_layers)Number of layers to be generated.[`ShellBLControlGrowthParams.offset_type`](ansys.meshing.prime.ShellBLControlGrowthParams.offset_type.md#ansys.meshing.prime.ShellBLControlGrowthParams.offset_type)Offset type for ShellBL.