> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Pattern Repetition Constraint

Constrain the topology optimization process to maintain a repeated pattern defined by a Cell Map.

### Inputs

| Name     | Type                                                       | Description                                   |
| -------- | ---------------------------------------------------------- | --------------------------------------------- |
| Cell map | [Cell Map](../../../../block-documentation/types/cell-map) | A cell map that defines the repeated pattern. |

### Outputs

| Type                                                                         |
| ---------------------------------------------------------------------------- |
| [Design Constraint](../../../../block-documentation/types/design-constraint) |