> ## 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.

# Field from Mesh Thickness

## About this Block

**What it does:** Measures the thickness of a Mesh and creates a Scalar Field of the values. Mesh thickness is defined as twice the distance from a point on the Mesh's medial axis to its surface. This block only supports objects with medial axes. Spheres and other objects with degenerate meidal axes are not supported.

**Common uses:**

* Evaluating a model's local feature size or wall thickness.

**Tips:**

* Create a **Point Map** from the field to help evaluate the approximate wall thickness of your mesh.

## Example File

Download Example: [Field from Mesh Thickness](https://storage.googleapis.com/files-learn/static/ExtendedBlockDocs/field_from_mesh_thickness.ntop)
![Example Screenshot](https://storage.googleapis.com/files-learn/static/ExtendedBlockDocs/field_mesh.jpg)

***

Measures the thickness of a Mesh and creates a Scalar Field of the values. The thickness of a Mesh is defined as twice the distance from a point on its medial axis to the surface. Only Meshes with non-degenerate medial axes are supported. Meshes with a degenerate medial axis, such as a sphere, may give unexpected results.

### Inputs

| Name | Type                                               | Description                            |
| ---- | -------------------------------------------------- | -------------------------------------- |
| Mesh | [Mesh](../../../../block-documentation/types/mesh) | Mesh to extract thickness values from. |

### Outputs

| Type                                                               |
| ------------------------------------------------------------------ |
| [Scalar Field](../../../../block-documentation/types/scalar-field) |