---
title: "NavVis M6 Control Points"
slug: "control-points-2"
description: "NavVis M6 control points supply external real-world positions that improve the trajectory estimate and auto-geo-reference datasets. The M6 needs a calibrated laser cross-pointing to the floor."
tags: ["Anchor Position", "Mapping", "SLAM Anchor", "wall mounted anchors"]
updated: 2025-06-27T11:04:47Z
published: 2025-06-27T11:04:47Z
canonical: "knowledge.navvis.com/control-points-2"
---

> ## 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.

# Control Points

Another effective method for improving map accuracy are control points. By supplying additional, external information about the real-world position of the device, this feature improves the trajectory estimate and allows for automatic geo-registration of Datasets.

The **Control Points** feature allows the user to improve the accuracy of the device's trajectory estimate, as well as to automatically geo-reference and align datasets by supplying additional, external information about its real-world position.

For control points, the NavVis M6 needs to be fitted with a calibrated laser cross-pointing from the device's body to the floor.

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.