First, let me introduce myself: My name is Reinhard and I am member of the German OSM community.
Recently, I had the opportunity to climb Klek mountain (near Ogulin). I recorded the course of the hike with a small navigation device (Garmin GPSMAP 64s) using an external antenna for the best possible satellite reception.
Verifying the course in the summit area with Google Earth results in the fact that my GNSS track actually runs like the real trail with a slight deviation to west-northwest:
But trying to adjust the course of the current OSM way is not possible for me: the orthophotos which are provided by my OSM editor (Potlatch) are not helpful in any way which e. g. is documented by the position of the helipad (#5 in the above picture) relatively to its position in the following pictures:
Yes; in Croatia we use latest DGU (DrĹžavna geodetska uprava) Croatia ortophotos (available as WMS) as default imagery (we declare it to have correct offset).
In particular, WMS layer OI.OrthoimageCoverage on URL https://geoportal.dgu.hr/services/inspire/orthophoto_2021_2022/ows? using EPSG:4326 projection
is the latest containing the Klek area. Unfortunately, I do not know if Potlach allows adding WMS imagery sources. If it doesnât (and only allows custom TMS), youâd have to:
install local mapproxy with configuration from that GitHub linked above (or convince someone to setup a public instance for you) and use that in combination with Potlach
switch to using different editor for that purpose (iD is browser based and easy to use; although i personally prefer JOSM)
give the .gpx track to someone else to give it a try (if you want; I can try)
Many thanks for your help. Unfortunately, Potlatch couldnât âdigestâ your WMS imaginary link and I must admit that I donât feel able to follow your hints for activating TMS imaginary. So I decided to give the iD editor a try.
To my surprise, it actually provides dgu.hr: Croatia 2019-2020 aerial imagery that matches pretty well with both the existing OSM path and my tracks:
Additionally, one of the links in the post âDGU ortofoto 2021, 2022, 2023â from 14 August also works, although its imaginery obviously is based on a different projection, but unfortunately the link in your post doesnât work here either:
Bitte kopiere jeweils den kompletten Link aus meinem Beitrag zur Benutzung in iD. Nach dem âows?â in deinem letzten Bild unten fehlen noch viele Zeichen.
Alle 3 von mir aufgelisteten BildhintergrĂźnde funktionieren in iD, wobei die Bilder von 2023 in diesem Gebiet nicht verfĂźgbar sind, da dieses 2023 nicht beflogen wurde (dort siehst du dann nur das Logo des Geoportals als Hintergrund).
