---
title: "Scanning with Control Points"
slug: "scanning-with-control-points"
tags: ["Accuracy", "Anchor Position", "SLAM Anchor", "SLAM Anchor File", "wall mounted anchors"]
updated: 2025-06-27T11:06:59Z
published: 2025-06-27T11:06:59Z
---

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

# Scanning with Control Points

> [!NOTE]
> **Note**: You can capture a control point more than once within a Dataset if it is passed multiple times during mapping.

> [!NOTE]
> **Note:**If the control point is not saved within 60 seconds it must be set again.

## Procedure

1. Press the control point button in the user interface to activate the downward-pointing laser cross of the NavVis M6.
2. Move the laser cross exactly over the cross on the marker. The centers of the crosses must line up, but the orientation does not matter.

![](https://cdn.document360.io/bf174766-fa1a-4fe1-a4d7-b1db1e7cb996/Images/Documentation/scanning-with-control-points-image-o4fbs80n.png)
3. In the **Set a control point** screen, press **Set control point**. This sets the current device position as a control point.
4. In the next **Set a control point** screen, enter a control point ID in the field provided. The ID you enter must match the ID on the control point marker.
5. Press **SAVE** to confirm, or **Retry** to undo or repeat a measurement before the control point is saved. If the control point is not saved within 60 seconds, it must be set again.

A dataset is a piece of a site, the result of a continuous recording with a NavVis mapping device or the result of an imported point cloud. Datasets can contain panoramic images and point clouds.