Convert DXF to GPX
🎯 Summary: This method allows you to convert DXF to GPX without knowing the projection, using only reference points.
When Should You Use This Method?
Step-by-Step Guide:
✅ If you don’t know the DXF drawing projection
❌ If you do know the projection, it's faster to convert using other tools (online calculators, PC software).
Conversion Methods
🔹 Method 1: Using the drawing's projection.
🔹 Method 2: Matching reference points with real GPS coordinates.
If the projection is unknown, follow this method. Yes, it takes more time, but it requires no special knowledge.
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🔹 Step-by-Step Instructions
⏱ Step 1: Preparing the DXF Drawing
0:00 – Export the required polylines to a new DXF file.
0:25 – Explode and reconnect objects so that the base line becomes the first polyline in the file.
⏱ Step 2: Identifying Reference Points
0:55 – Choose two key vertices on the base line/alignment (widely spaced and with known locations).
1:10 – Find the first point’s coordinates in Google Maps.
1:27 – Enter the coordinates into the table.
1:55 – Find the second reference point and repeat the process.
⏱ Step 3: Converting DXF to GPX
2:06 – Upload the DXF file to the application.
2:17 – Enter the coordinates of the reference points.
2:30 – Specify the approximate terrain elevation (e.g., 150 m).
2:34 – Check the delta (it should be less than 1 m).
2:41 – Adjust coordinates if necessary (changing the sixth decimal place ≈ 10 cm).
⏱ Step 4: Final Export
2:48 – Recalculate; the application will generate a GPX file in the Download folder.
2:59 – Verify the GPX file in Google Earth.
2:41 - When clicking Calc DXF, the application automatically compares distances between the DXF file coordinates and Google Maps coordinates. The delta should be less than 1 meter. Since achieving this precisely on the first attempt is difficult, you can manually adjust point coordinates. (Changing the sixth decimal place alters the distance by approximately 4 inches.)
2:48 – Once the delta is below 1 meter, click Calc DXF again. The application will then display the stationing and offset to the baseline. The GPX file will automatically be saved in the Download folder.
📌Tools I use:
[Alignment Tracking](https://play.google.com/store/apps/de...)
[Google Maps](https://maps.google.com)
[Google Earth](https://earth.google.com)
https://www.stadiamark.com/DXF-to-GPX/ - manual
If you have any questions or want to share your experience, leave a comment—I’ll be sure to reply.
It may be interesting to see my work.
review of the apps:
Auto level surveying calculations + Сollimation https://play.google.com/store/apps/de...
Spreadsheet interpolation https://play.google.com/store/apps/de...
Earthwork. Volume Measurement, altitude control over the base surface, adding Contour Lines, adding Direction Arrow with Slope Labels(Two-point) https://play.google.com/store/apps/de... stadiamark.almagest.name/HOW-IT-WORKS/
Alignment Tracking — your reliable travel companion. Simplify and enhance your movements with our app. a detailed description of all the features of the application can be found at the link https://stadiamark.almagest.name/Alig...
stadiamark.com/ Welcome to StadiaMark, the project that distributes for free geographic data of routing OpenStreetMap routing all over the world