id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
24238	[WIP] Write more gps info inside jpg exif metadata	StephaneP	team	"A few months ago, I've started to write a patch to add more ""gps"" informations inside the jpg images during the image/gpx correlation.

These metadata are used in Panoramax to compute a ""quality score"", and available in the filters.
Example : https://api.panoramax.xyz/#focus=pic&map=17/48.523629/2.655424&pic=05f66723-a2f0-4cc3-93ea-8e0ba9df24b9&pic_score=A&speed=250&theme=default&xyz=139.57/-2.46/25 (clic on the right bottom '?' to see the metadata) 

3 steps are needed:
 1. Patch for Josm core
 2. Patch for photo_geotagging plugin
 3. Patch for Apache Commons Imaging

=== 1. Patch for Josm core
It's 80% done, and I'm open to some feedback.
==== About the GUI:
Right now, i've added many informations on the image viewer overlay. I'm not sure it will be accepted as is:
[[Image(new_exif_metadata_correlation.jpg, 800px)]]
==== About the GPSProcessingMethod:
The GPSProcessingMethod metadata is a text field, without restricted entry. I made these choices:
 - Add 'GNSS' during a correlation
 - Add 'RTK_FIX'/'RTK_FLOAT' if the information is available. Other status as dgps are already stored inside GPSDifferential tag.
 - Add 'CORRELATION' because ...it's a correlation, and not a processing done directly inside the camera
A complete value could be `GNSS RTK_FIX CORRELATION`

Other newly managed exif metadata are:
 - GPSDOP
 - GPSDifferential
 - GPSHPositioningError
 - GPSMeasureMode
 - GPSMapDatum (with the EPSG code)
 - GPSTrack

=== 2. Patch for photo_geotagging plugin
It is ready, but we can't merge it before step 3 is done.

=== 3. Patch for Apache Commons Imaging
In the available release, alpha5, it's not possible to write the `GPSHPositioningError` tag. My pull request was merged some months ago. I'm waiting for an alpha6 release.
Then Josm should switch from the alpha5 to the alpha6 release."	enhancement	new	normal		Core