> ## 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.

# FE Boundary by CAD Face

Create an FE Boundary of mesh entities using a list of CAD faces.

### Inputs

| Name      | Type                                                            | Description                                                                                                                           |
| --------- | --------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| Faces     | [CAD Face List](../../../../block-documentation/types/cad-face) | The input CAD faces. The distance to these faces will be the searching criteria for finding entities of the input FE Mesh.            |
| Mesh      | [FE Mesh](../../../../block-documentation/types/fe-mesh)        | The input FE Mesh to search for mesh entities.                                                                                        |
| Entity    | FE Boundary Enum                                                | The type of mesh entity the boundary output should consist of.                                                                        |
| Reverse   | [Bool](../../../../block-documentation/types/bool)              | An option to reverse the selected entities.                                                                                           |
| Tolerance | [Scalar](../../../../block-documentation/types/scalar)          | The search tolerance for finding mesh entities. If this function does not detect the desired entities, try increasing this tolerance. |

### Outputs

| Type                                                             |
| ---------------------------------------------------------------- |
| [FE Boundary](../../../../block-documentation/types/fe-boundary) |