Use Sonny's LiDAR digital terrain models?

[jonaseberle]

Europe has LiDAR data thanks to https://sonny.4lima.de/. It is tediously derived from multiple sources, very smooth and I've not come across the spikes that Viewfinderpanorama/SRTM has. It is licensed under CC BY 4.0. Using it requires attribution to Sonny and link to the website. If we decide to use it we should mention it in the release notes and make users consider a donation to Sonny.

The 1" data is 150MB for Iceland or 4.7GB for Europe. It is currently hosted on Google drive in 1-15MB .zips. Using it from there in Github actions does not seem feasible (even cached). So it would have to be re-uploaded, for example as assets of a special "release" on Github.

To make it accessible in the expected tile directory in ./Elevation_data/ for Ortho4XP this can be used after unzipping everything: https://github.com/kubilus1/autoortho/issues/117#issuecomment-1539134818

[jonaseberle]

I think I am ready to make a pull request. I am just doing a test run overnight.

These are my test areas old/new

ENSB: +78+015

EKVG: +62-008

BIHN: +64-016

[kubilus1]

Very nice! I'll be pretty tied up for the next week or so, but good to see progress. Thanks again.

[jonaseberle]

I've found areas where i liked the existing Viewfinderpanorama mesh a bit better.

North of LOWI:

XP default ← Viewfinderpanorama → Sonny

XP default ← Viewfinderpanorama → Sonny

That's the 1" coverage of Viewfinderpanorama for reference. http://viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org1.htm

I'll keep Sonny for all Europe in the PR as is for now but some ridges in the Alps seem to be better represented in Viewfinderpanorama.

[rthor]

Any chance for this getting merged? Iceland is looking very un-Icelandic atm :)

[jonaseberle]

It has been merged to a different development branch only so far. If you want to use it the instructions are here: https://github.com/kubilus1/autoortho-scenery/pull/14