Hi,

First of all – are You using JPG or PNG format images. Your text is a bit confusing.

JPG images are associated with JGW or WLD _world_ _format_ files.

XML can contain anything. Provide example.

Good luck,
Kārlis

20.08.25 17:20, Léopold Stoessel via QGIS-User rakstīja:
Hello,

Our team is currently working on a project to reconstruct the railways of Canada using QGIS. To do this, we collect data directly on the rails, taking a photo every 2 meters. Each image (JPG) is accompanied by an XML file containing its GPS coordinates (EPSG:4326) and orientation.

Our goal is to display all the images on a QGIS map at their correct geographic location and with the proper orientation. (Example image: /Try.jpg/)

As far as I understand, a JPG file needs either an associated PGW world file or must be converted into a georeferenced TIFF in order to be correctly placed on the map.

Here are the challenges we're facing:

  * *PGW method*: I tried placing a PNG file with a PGW of the same name
    in the same directory, but QGIS seems to ignore the PGW file and
    creates HTML document with other coordinates instead.
  * *GeoTIFF method*: With over 500,000 images, manually georeferencing
    each one is not feasible.

So I would like to ask for your advice:

  * Are we on the right track with our approach?
  * Which method would you recommend in our case?
  * Do you know of any way to automate the image placement and
    orientation based on our XML data?
  * Would it be possible to handle this through the Python console or
    using PyQGIS?

Any guidance or suggestions would be greatly appreciated.

Thanks in advance for your time and help!

**

**

** <https://www.cefrail.ca/>** <https://www.facebook.com/cefrail>**<https://www.linkedin.com/authwall?trk=bf&trkInfo=AQEjKKnHH0hB2QAAAYzqp8YogvhljVV4rfWfPZk4nt7Fxp7t-jgeC03T84SUqgFnFtN8YLHip3me96M7mf832Uiq6YnFyyw3y1AU8c10Tw4twclYPuLl6KexU9lj_p4Hp_UeifI=&original_referer=&sessionRedirect=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcefrail>

        

*Léopold Stoessel*

Stagiaire - Génie ferroviaire

1 866 544-RAIL

[email protected] <mailto:[email protected]>_

_www.cefrail.ca <http://www.cefrail.ca/> _

/RAIL est un centre intégré au Cégep de Sept-Îles/

        


_______________________________________________
QGIS-User mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

_______________________________________________
QGIS-User mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Reply via email to