https://bugs.kde.org/show_bug.cgi?id=394544

--- Comment #3 from Ben Armstrong <sy...@debian.org> ---
Gilles,

I appreciate that when building & supporting a plugin ecosystem, having the
freedom of language choice through bindings for those languages has a cost, so
by limiting it to C++ and Qt5, it is less of a burden to support, but
unfortunately, that diminishes my interest in writing any code for this
wishlist, as any such code would be novice-level at best, and both user
communities (iNaturalist, Digikam) deserve better than that.

Still, I'd be happy to play some supporting role here, so that includes clearly
articulating what would be useful in such an extension, testing & debugging any
code written (if it gets that far), or any other way I can help.

If I cannot realize a substantially Digikam-centred workflow, perhaps I could
take a different tack, prototyping something standalone that works with my
Digikam collection.

And in any case, here are some issues I'm currently facing with Digikam's
support for GPS tags that a plugin like this could help with:

- It is important to submit accuracy with each observation created on
iNaturalist. While there are ways to collect that data automatically, I have
yet to determine how to merge it into my photo collection and submit in a form
that iNat accepts.

- Unfortunately, while OsmAnd (which I use for GPS tracking) stores HDOP per
trackpoint, I know of no way horizontal positioning error can be computed from
that figure & then written out to the corresponding EXIF tag
(GPSHPositioningError). And that's the only mechanism they have to input
accuracy from photos submitted on the web.

- Indeed, even after using Digikam's GPS correlation to merge HDOP from my
tracks, it doesn't loook like Digikam writes that out, not even to GPSDOP, in
the EXIF (I'd have to use exiftool for that).

- And even if Digikam did that, iNat ignores GPSDOP and only accepts
GPSHPositioningError.

- Therefore, while I can use Digikam's GPS correlator to import those HDOP
values into Digikam per photo, I am currently without any way (via Digikam or
otherwise) to turn that into usable data for my observation submissions.

If the plugin would ease this particular pain point, it would greatly improve
the workflow:

- snap shots in the field while taking GPS track with HDOP
- import into Digikam for processing
- GPS edit, using correlator to merge HDOP values
- submit to iNat with accuracy info included in a form iNat will accept

Thanks for considering this request.

Ben

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