Welcome, Christian!<div><br></div><div>Thanks for joining the list - would you mind forwarding this note to talk-fr?</div><div><br></div><div>Those threads on talk-fr look like exactly what we have in mind for Historical OSM:</div>
<div><a href="http://lists.openstreetmap.org/pipermail/talk-fr/2012-December/052738.html">http://lists.openstreetmap.org/pipermail/talk-fr/2012-December/052738.html</a></div><div><a href="http://forum.openstreetmap.fr/viewtopic.php?f=2&t=376&start=0">http://forum.openstreetmap.fr/viewtopic.php?f=2&t=376&start=0</a></div>
<div><a href="http://forum.openstreetmap.fr/viewtopic.php?f=2&t=395&start=0">http://forum.openstreetmap.fr/viewtopic.php?f=2&t=395&start=0</a></div><div><br></div><div>And, the questions you ask about tagging are at the core of what we are trying to figure out, which is: how should we do this?</div>
<div><br></div><div>Welcome aboard!</div><div>Regards,</div><div>Jeff</div><div><br></div><div><br></div><div><div><br><div class="gmail_quote">On Wed, Jan 2, 2013 at 4:04 PM, Christian Quest <span dir="ltr"><<a href="mailto:cquest@openstreetmap.fr" target="_blank">cquest@openstreetmap.fr</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I subscribed today to this list after seing some mention of Historical<br>
OSM in one of Jeff message on another OSM list.<br>
<br>
I'm also interested in that area, keeping track of data from the past<br>
if possible directly in OSM.<br>
<br>
Who am I ?<br>
<br>
My french accent is hidden by the internet (so far) but, yes, I'm from<br>
Paris area (this will help understand my strange english sometime).<br>
<br>
I've been mapping my home town extensively over the past years after<br>
discovering OSM because of genealogy (looking for place names, and<br>
people names in toponyms*). I'm involved in OpenStreetMap France board<br>
(secretary of our non profit association).<br>
<br>
On the french OSM forum, we had a recent talk about historical details<br>
in OSM. I started drafting some tagging scheme that would not collide<br>
with present tags.<br>
<br>
I've only tried to deal with tags, the semantic part of OSM, not the<br>
geometry part that may also depend on the time.<br>
<br>
The idea is to add a time range to a tag, example:<br>
<br>
The current name is "Place Charles de Gaulle", but until 1970 it was<br>
"Place de l'Etoile" (located on the upper end of Champ Elysée in<br>
Paris).<br>
name[:1970]=Place de l'Etoile<br>
name=Place Charles de Gaulle<br>
<br>
A building was a court house until 1927 and is not a shoe shop (at my<br>
street corner):<br>
building=yes<br>
shop=shoes<br>
amenity[1905:1927]=court_house<br>
<br>
<br>
Dates can be formatted to deal with different calendars, BC dates, fuzzy dates.<br>
Data users that do not want to keep these details from the past can<br>
simply trash any tag containing brackets.<br>
If you want to deal with these details, extraction of the date range<br>
can then be stored in additional "start/end" fields the database<br>
schema you're using.<br>
<br>
Well, this is more a brainstorming that actually a draft of some proposal.<br>
<br>
* about toponyms, I've recently added a proposal for wikipedia:name<br>
tags to link a name to a wikipedia article... but this is another<br>
topic.<br>
<span class="HOEnZb"><font color="#888888">--<br>
Christian Quest - OpenStreetMap France - <a href="http://openstreetmap.fr/u/cquest" target="_blank">http://openstreetmap.fr/u/cquest</a><br>
<br>
_______________________________________________<br>
Historic mailing list<br>
<a href="mailto:Historic@openstreetmap.org">Historic@openstreetmap.org</a><br>
<a href="http://lists.openstreetmap.org/listinfo/historic" target="_blank">http://lists.openstreetmap.org/listinfo/historic</a><br>
</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><font size="1">Jeff Meyer<br>Global World History Atlas<br><a href="http://www.gwhat.org" target="_blank">www.gwhat.org</a><br><a href="mailto:jeff@gwhat.org" target="_blank">jeff@gwhat.org</a><br>
206-676-2347</font><div><font size="1"><a href="http://www.openstreetmap.org/user/jeffmeyer" target="_blank">www.openstreetmap.org/user/jeffmeyer</a></font></div><div><font size="1"><br></font><br></div>
</div></div>