On 04/07/2020 12:54, David Woolley wrote:
At the very least data currently live in on a 'current' view should be
automatically filed to an historic layer when it is replaced
How does this differ from how OSM already works? You can already create
versions of the map at any point in its history, except where data has
been redacted for legal reasons.
The current 'OHM' is not a layer that can be easily combined with the
current 'OSM' layer. Large sections of the current data are simply
cloned into OHM anyway. Providing an historic layer which only holds the
data that has changed over time AND using the same tools to expand on
that historic data as are used to map current data removes another
hurdle to maintenance. If third party data such as NLPG can be processed
to provide it's data as another layer which can then be combined in the
one view then it removes the need to simply import large data sets. One
simply uses which set of layers you want ...
Of cause the other approach is simply merge all available data ... past,
present and future ... into the one humungus database and navigate the
problems of maintaining potentially thousands of data sets in sync with
the 'master' copy.
--
Lester Caine - G8HFL
-----------------------------
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk
_______________________________________________
Talk-GB mailing list
Talk-GB@openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-gb
