---
title: "What coordinate system do we use for the control points related tasks?"
slug: "what-coordinate-system-do-we-use-for-the-control-points-related-tasks"
description: "In NavVis IVION, we use the right-handed, North-Easting coordinate system when inputting the measured control point values. "
tags: ["Coordinate reference system", "FAQ", "Georegistered", "site coordinate", "spatial coordinate"]
updated: 2025-01-28T13:57:51Z
published: 2025-01-28T13:57:51Z
canonical: "knowledge.navvis.com/what-coordinate-system-do-we-use-for-the-control-points-related-tasks"
---

> ## 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.

# What coordinate system do we use for the control points related tasks?

We use the right-handed, North-Easting coordinate system when inputting the measured control point values.

Same as the comments in the anchor_poses.txt:

```plaintext
# IMPORTANT: Geodetic coordinates are usually in a left-handed coordinate system whereas mathematic
#            coordinate systems are right-handed. Make sure your coordinates are in a right-handed system!
# Hint: X -> Easting, Y -> Northing, Z -> Height
```