---
title: "How to convert the coordinates measured by total station from left hand to right hand coordinate system"
slug: "how-to-convert-the-coordinates-measured-by-total-station-from-left-hand-to-right-hand-coordinate-system"
description: "Total station control points measured in a left-hand coordinate system convert to the NavVis right-hand standard by swapping X and Y. Z stays unchanged; X 10 Y 20 becomes 20, 10."
tags: ["How to ..."]
updated: 2024-02-26T13:08:33Z
published: 2024-02-26T13:08:33Z
canonical: "knowledge.navvis.com/how-to-convert-the-coordinates-measured-by-total-station-from-left-hand-to-right-hand-coordinate-system"
---

> ## 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.

# How to convert the coordinates measured by total station from left hand to right hand coordinate system

## Introduction

### Purpose

If control points were measured in a Left hand coordinate system using the total station, they should be converted to the right hand coordinates which are the standard for NavVis.

## Procedure

Replace the X with the Y coordinate and the Y with the X.

Example: Converted:

X Y X Y

10 20 20 10

The Z coordinates must remain the same.