---
title: "Can I use measured GPS coordinates in mapping / processing?"
slug: "can-i-use-measured-gps-coordinates-in-mapping-processing"
tags: ["FAQ"]
updated: 2025-10-29T12:32:13Z
published: 2025-10-29T12:32:13Z
canonical: "knowledge.navvis.com/can-i-use-measured-gps-coordinates-in-mapping-processing"
---

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# Can I use measured GPS coordinates in mapping / processing?

In outdoor mappings, sometimes I have GPS measured coordinates, can I easily use that with my device during mapping or afterwards in post-processing?

We cannot directly import the GPS coordinates into our processing pipeline, as the units in processing uses the Cartesian coordinate system (x,y,z) and GPS is using geographic coordinates in e.g. long & lat.

## Workaround:

1. During mapping, take a note of the control point from the device and also the GPS device.
2. Transform those noted GPS coordinates to local metric system starting with a base point (0.0.0).
3. in post-processing stage, use the transferred coordinates in local metric system in Navvis software, similar workflow as using other control points in processing.