OkMap Tutorial - GPX Track Analysis and GPS Track Cleaning
Published on April 15, 2026 - Video duration: 3:45
Tutorial Overview
OkMap tutorial for analyzing GPX tracks recorded in the field, correcting GPS errors, and using DEM data.
In this video, we will see how to correct elevations, remove redundant points, and obtain reliable route statistics and charts using OkMap's GPX and GPS track analysis tools.
The result is an optimized and accurate GPX track, ready for further analysis, editing or use on GPS devices.
OkMap offers advanced tools for editing, cleaning, and analyzing GPX tracks, allowing you to correct errors, improve data accuracy, and obtain reliable statistics.
Recommended prerequisite
To better understand this tutorial, we recommend watching first:
Procedure:
- Open a georeferenced raster map or a web map
- Download elevation data (DEM)
- Load the track recorded from the GPS
- Correct elevation using DEM data
- Remove redundant or incorrect track points
- Simplify the track if necessary
- Analyze route statistics
- Analyze elevation profile graphs
- Save the cleaned track as a new GPX file
Tips:
- Use elevation correction to improve profile accuracy
- Remove GPS point clusters generated during pauses
- Reduce points only enough to preserve route detail
- Compare the recorded track with the map to identify GPS errors and improve GPX file quality
Common errors:
- Not correcting GPS track elevation
- Not removing point clusters generated during stops
- Removing too many points and losing route accuracy
- Not verifying consistency between track and real route