[Talk-us] Civil War sites

Richard Welty rwelty at averillpark.net
Mon Mar 28 15:18:07 BST 2011

how this would get done is all part of the laboratory aspect of the 
project. things
that exist, maps of current historical sites, are all reasonable things 
for the
existing OSM database. the idea here is that things that no longer exist 
but are
historically significant go in the history database and we use 
openlayers to do
a mashup on top of a rendering of modern OSM. so you've distinguished by 
two different databases, and the historical database can use tagging 
that would
be considered clutter in modern OSM.

i will look into where this can be hosted, and look into setting up a 
mailing list
for those interested in the project to communicate. i'd consider hosting 
it on my
own hardware, but i think i'd like to increase the available disk space 


On 3/28/11 10:10 AM, john at jfeldredge.com wrote:
> In some cases, portions of the sites are still extant, and could be shown on current maps; other portions are no longer in existence, and should show up only on historical maps, or rendered in a different color, as a historical overlay.  So, the tagging would need to distinguish between the two statuses.
> -------Original Email-------
> Subject :Re: [Talk-us] Civil War sites
> > From  :mailto:jlkittle at aquaterra.com
> Date  :Mon Mar 28 08:46:32 America/Chicago 2011
> +1 on a parallel/complementary database.
> we have lots of Civil War sites here in Georgia that would be fun to
> map.  it's a timely topic during the sesquicentennial years.
> jack
> On 3/26/2011 5:57 PM, Richard Welty wrote:
>> On 3/26/11 5:53 PM, Russ Nelson wrote:
>>> Richard Welty writes:
>>>>   historical mapping can be hard. i have the resources to do a bunch
>>> of it for
>>>>   the Civil War, but the tagging system doesn't support a lot of the
>>> data and
>>>>   it would just make a mess  of the map, i think, right now.
>>> OSM doesn't have a good concept of time. It would be reasonable to put
>>> non-current data into OSM except that it would show up in editors, and
>>> renderers likely don't know about the ending-date tags and would
>>> render data not currently present on the ground. E.g. at this time and
>>> date General Custer was here, then he was there.
>> i'm debating whether or not i want to set up a parallel database, using
>> the OSM design, to contain historical data that can be used in a mashup
>> with OSM, and opening it up for historically minded mappers to use as
>> a laboratory for experiments in how one would tag this stuff.
>> richard
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