<div dir="ltr"><div><div><div>The simplest way is to select the object(s), create a new layer & COPY them into the layer which will create new objects. I think the process is noted in my <a href="http://sk53-osm.blogspot.com/2014/12/city-stripping-building-historical-road.html">City Stripping</a> blog post.<br><br></div>For now I'd discourage using OHM as a backing store for demolished OSM buildings (not least, because the data is in the OSM history). At the very least avoid doing it on a large scale. <br><br>We would quickly be overwhelmed if every deleted object from OSM got pushed into OHM immediately. On the other hand things like the London Olympic Park from 2012 which has changed significantly would be something worth pulling into OHM. At present we need coherent data sets (typically project based), so if you want to find 5 years of demolished buildings from a discrete area in OSM and place those in OHM this would give us enough data to explore what the issues are with the generic case (pulling all dead OSM buildings out).<br><br></div>Also for now until we get a better conceptual grasp most of the OHM data is a snapshot at a particular notional date.<br><br></div>Jerry<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 26 February 2015 at 16:45, Richard Welty <span dir="ltr"><<a href="mailto:rwelty@averillpark.net" target="_blank">rwelty@averillpark.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>On 2/26/15 11:33 AM, Kurt Waldhans
wrote:<br>
</div>
<blockquote type="cite">
Is it possible to save demolished building in the
OpenHistoricalMap?<br>
<br>
In OSM it's necessary to delete the data of a razed building as
soon as a new building is constructed in this place. I would
really like to save the data. <br>
<br>
Is there a simple way? I am using JOSM, I can tag the end_date,
and save it to a .osm file. <br>
</blockquote>
if you have it in a .osm file then there shouldn't be any reason why
you can't restart<br>
JOSM pointed at OHM and bring it into the system in the usual way.
you will probably<br>
need to do some fiddling with the ids (changing them to negative
values so that they<br>
come in as new nodes and ways and get OHM ids assigned.)<span class="HOEnZb"><font color="#888888"><br>
<br>
richard<br>
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