[OSM-talk] Preserving History ...

moltonel 3x Combo moltonel at gmail.com
Tue Aug 25 15:39:02 UTC 2015

On 25/08/2015, Blake Girardot <bgirardot at gmail.com> wrote:
> But in general if you want to map from scratch, make a new layer, map,
> merge layers, replace geometry, done, history retained and you mapped
> from scratch.

I wonder if JOSM could do that automatically. Before uploading, JOSM
would look at all objects deleted during this editing session,
fuzzy-match new objects at the same location and tags, and perform the
replace-geometry tag automatically.

> Same thing with roads that need updating, you just remap it and then
> replace geometry or use the improve way tool, either one will preserve
> history.

Another tip for preserving history in JOSM: if you split a way in two,
the start of the way is the one that retains history and the end of
the way (where the arrow is) is new. Reversing the way before spliting
it can help keep the history on the important section.

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