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Years ago, I manually drew most of the building outlines for the main campus of my employer, the University of Melbourne. The were OK for the time (aerial imagery wasn't very good back then), and have served well enough, however, we now use an mapping overlay that exposes many inaccuracies in that original data. I now have access to accurate building outlines, and would like to explore a workflow that would allow me to replace my old manual edits with this shiny new geojson. So, I have some questions:
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I am sure that there are ways of scripting this but if the project is relatively small, maybe less than a few hundred buildings, then I think JOSM and a couple of its plug-ins could be of use to you. There is a feature called "Replace Geometry" which I think is part of the utilsplugin2 plug in. And the opendata plug in allows you to load things like shape files from a GIS system into a new layer.
The outline is now updated but has all the old history. Rinse and repeat for each building. You can use the todo pluin to step through the original buildings which will help organise the workflow.
(11 Nov '22, 15:11)
SK53 ♦
Oh, yes. That sounds exactly the sort of thing I'm after. Going to test that asap - thanks so much. I'm not much of a JOSM user, so I'd never have worked that out.
(16 Nov '22, 06:24)
woowoowoo
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Regarding the second question: One of the steps in the Import Guidelines is documenting permission on the OSM wiki.