From the commit:

This patch adds support for slippy maps to display a live geo-location
aware status view of your network. The new display (called node-map)
is scoped by surveillance categories. By selecting a category the map
will snap to the size to fit all elements in. If nodes are too close
to each other they are globed together until the map zooms to a
suitable level when they can be expanded into individual icons.

Configuration
=============

You will require a working OpenLayers and Tile Cache setup. In our
case we run it on our NMS machine but there is no reason to. For
Debian/Ubuntu systems the package dependencies look like:

python-mapnik (>=0.7.1-2), openlayers, tilecache, osm2pgsql,
osm-mapnik-utils, osm-base-data

The osm-base-data provides a world map, you will need additional data
if you want more detail.

OpenNMS uses the following parameters in /etc/opennms/opennms.properties:

In a standard Debian setup the tilecache scripts will just be in cgi
along with all other system installed cgi.

Geo-location data
=================

Currently the only way to import geo-location data for nodes is
through the model-importer (which is what CBNL uses as OpenNMS cannot
discover network topology on its own). The node element now takes an
optional geolocation tag, e.g.:

<geolocation lat="52.227352" lon="0.154387"></geolocation>

Updates
=======

Server Side:

• Remove knowledge of CBNL specific relationships

• Replace with a generic parent/child relationship and categories

• Add ability to return an arbitrary depth of child relationships

• Servlet returns availability as a formatted string

Web-side:

• Re-factored the code into Map/Table and Data controllers

• Cleaned up DOM manipulation using jQuery methods

• Changed mapping for map markers based on alarm and availability

• re-organises the layout in into more OpenNMS like 3 pane view

• Add OpenNMS style info boxes to the display

• Add the ability to display child nodes

• Made the pop-up box use OpenNMS table styling

• Removed a bunch of dead code, generalised a bunch more