> ## 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 Points by Plane

> AI context for Filter Points by Plane. 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-points-by-plane).

## Summary

Filters a scalar point map to retain those within the negative  field of a plane.

## Package Details

| Field            | Value                                               |
| ---------------- | --------------------------------------------------- |
| **ID**           | `filter-points-by-plane`                            |
| **Type**         | Block                                               |
| **Author**       | nTop                                                |
| **Version**      | 1.0.0                                               |
| **nTop Version** | 5.43+                                               |
| **Domain**       | Geometry                                            |
| **Complexity**   | Beginner                                            |
| **Tags**         | `filter`, `points`, `plane`, `scalar`, `half-space` |
| **License**      | MIT                                                 |
| **Verified**     | Yes                                                 |

***

Filters a scalar point map to retain those within the negative  field of a plane.

## 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-points-by-plane/`.

## Inputs

| Name        | Type             | Description                                                                                              |
| ----------- | ---------------- | -------------------------------------------------------------------------------------------------------- |
| `Point map` | Scalar Point Map | The point map that will be filtered.                                                                     |
| `Cut plane` | plane            | Plane used to divide the point map. Points on the negative side of the plane are retained in the output. |

## Outputs

| Name              | Type             | Description |
| ----------------- | ---------------- | ----------- |
| `Filtered Points` | Scalar Point Map | Output.     |

## License

MIT.

***

## Source

[https://community.ntop.com/packages/ntop/filter-points-by-plane](https://community.ntop.com/packages/ntop/filter-points-by-plane)