Chris,

The Voices of the Holocaust project (http://voices.iit.edu) does some
visualization using GIS data marked up in TEI.

The approach is fairly simple: geographic entities in the texts are marked
using the <placeName> element. Each <placeName> element includes a reference
to an XML ID maintained in a separate "authority file" of sorts (also
created using TEI), which is really just a big <listPlace> list. This allows
us to maintain a single source of GIS data for entities that are referenced
multiple times over different texts in the collection.

The GIS data is used to produce clickable pop-up maps, using PHP,
JavaScript, OpenLayers, and Google Maps.

Here's an example:

http://voices.iit.edu/interview?doc=bassfreundJ&display=bassfreundJ_en

The data from individual documents can also be aggregated and used to
produce "collection-level" maps:

http://voices.iit.edu/maps?type=camp

Hope this helps,

Eben English
Reference & Digital Services Librarian
Paul V. Galvin Library
Illinois Institute of Technology
35 W. 33rd St.
Chicago IL 60616
312.567.3373
http://library.iit.edu



-----Original Message-----

Date:    Thu, 17 Dec 2009 11:33:54 -0500
From:    "Kemp, Chris" <[log in to unmask]>
Subject: TEI and spatial/geographical visualization

Hi everyone,

At the University of Richmond we're working on a grant proposal with the
goal of developing some spatial/geographical visualization tools for
historians to use with TEI encoded texts.  We're obviously not the first
people to think of this--leveraging the data in TEI has been always been
something that those using TEI have talked about--but we haven't discovered
many projects that actually do produce visualizations from TEI.  A project
similar to what we're considering is The Old Bailey Online
(http://www.oldbaileyonline.org/), which plots the location data within
their proceedings on maps.

Seeking the wisdom of the group, does anyone know of other projects that
attempt to use TEI in this way? Responses on- or off-list will be
appreciated. I'll also report my findings to the group if there is interest.

Thanks in advance.
Chris
---
Chris Kemp
Head of Digital Initiatives
Boatwright Memorial Library
University of Richmond
[log in to unmask]
804 287.6672