> ## 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.

# Filter Point Map using Mesh Boundaries

> AI context for Filter Point Map using Mesh Boundaries. Not linked in navigation.

> This page is for AI assistant context only. To use this package, visit [community.ntop.com](https://community.ntop.com/packages/ntop/filter-point-map-using-mesh-boundaries).

## Summary

This Custom Block filters out a point map by excluding the result of the points in the vicinity of mesh boundaries.

## Package Details

| Field            | Value                                                                 |
| ---------------- | --------------------------------------------------------------------- |
| **ID**           | `filter-point-map-using-mesh-boundaries`                              |
| **Type**         | Block                                                                 |
| **Author**       | nTop                                                                  |
| **Version**      | 1.0.0                                                                 |
| **nTop Version** | 5.44+                                                                 |
| **Domain**       | Geometry                                                              |
| **Complexity**   | Beginner                                                              |
| **Tags**         | `filter`, `point-map`, `mesh`, `boundaries`, `proximity`, `exclusion` |
| **License**      | MIT                                                                   |
| **Verified**     | Yes                                                                   |

***

This Custom Block filters out a point map by excluding the result of the points in the vicinity of mesh boundaries.

* Used to filter out stress concentrations that appear on boundaries, which are typically simulation artifacts rather than real structural hotspots.
* Uses the Keep Out Distance (`KO Distance`) to define a buffer zone around the mesh boundaries — any points within this distance are excluded from the output point map.

## Installation

Clone this repo or copy the package folder into your nTop workspace:

```bash theme={null}
git clone https://github.com/nTopology/Utilities.git
```

The package lives at `packages/ntop/filter-point-map-using-mesh-boundaries/`.

## Inputs

| Name            | Type             | Description                                                                                                                                                                                 |
| --------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Point Map`     | Scalar Point Map | Point Map                                                                                                                                                                                   |
| `Mesh Entities` | list\<mesh>      | Mesh entities                                                                                                                                                                               |
| `KO Distance`   | Scalar           | Keep Out Distance - The distance around the mesh elements                                                                                                                                   |
| `Region`        | Choice           | The region you want to filter — `Outside` keeps points with distance > KO Distance, `Inside` keeps points with distance \< KO Distance, `Boundary` keeps points with distance = KO Distance |

## Outputs

| Name          | Type             | Description                                            |
| ------------- | ---------------- | ------------------------------------------------------ |
| `Filtered PM` | Scalar Point Map | The new point map using the filtered points and values |

## License

MIT.

***

## Source

[https://community.ntop.com/packages/ntop/filter-point-map-using-mesh-boundaries](https://community.ntop.com/packages/ntop/filter-point-map-using-mesh-boundaries)