Bug report: Georef info lost upon changing file path

[wogreene]

Hey Team!

I've discovered a pretty minor bug and have pinpointed it pretty well I think. So, when a project gets moved or opened from another computer and/or the filepaths to the underlying imagery are changed, the system prompts the user to find the first image file, and that resets the paths of the rest of the imagery in the project (i.e. DEMs or other timepoints) successfully. It does not appear, however, to reset the georeference filepath for each timepoint correctly. Looking at the .json, I can confirm that the "georef_filename" slot appears gets wiped to a blank "". If I manually edit the .json to get the georef_filename to match the new file locations, it works fine when opened back up in TagLab. When you all get the chance, it would be awesome if you can get this georef_filename to update properly to match the new file locations. Thanks!!

[maxcorsini]

Hi Will!

Thank you to point out this bug !

When an user moves the project into another folder Taglab updates all the paths accordingly, but, perhaps, the georef_filename is not updated properly. In your case, the georeference information are contained into the orthoimage or into the DEM ? (this may help to fix the bug)

[wogreene]

Hey Max,

Great question. In the ReefShape case, both the ortho and DEM contain the same georef information. Sometimes, however, we do not use a DEM and in that case, it should be fine to pull from just the ortho. I've noticed this bug on several plots but the ones that I was just working on that got me thinking about it did not have a DEM at all, so when I fixed the .json save file, I just inserted the updated orthomosaic geotiff path into the blank georef_filename slot and it solved the problem. I would think the way to handle this most robustly would be to be making sure the georef info is coming in from the updated path for the ortho if it is a geotiff or if there is a .jgw world file for a jpeg, and if not, pull it in from the geotiff DEM. Shoot me an email if you want to discuss this further!

Thanks,

Will

[maxcorsini]

For the moment, external file associated with the orthoimage containing georef information are not managed (the rationale is that it should be the user to move them with the orthoimage). In case, I will check better how to proceed and, in case, I will contact you by email to go in deep on this.

Thank you again!