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Geo-referencing content types in Plone with
collective.geo

Where is my
content?

Who am I?
I'm senior developer and project manager with Abstract since 2011

I have been working with Plone since 2007

During the last years I have gained experience with various Python web
development frameworks

Abstract
Where is my content? �� Giorgio Borelli

Web maps: when, why and how
1. Complex and specialized GIS application
2. Maps are the central part of the app
Panoramio
Foursquare
Only-apartments

3. Geo-referenced CMS

Abstract

What is collective.geo
collective.geo is a package that allows to geo-reference contents and to
display them on a map

http://plone.org/products/collective.geo

In 2008 I faced two problems

learning Plone 3 and the Zope component architecture
put a lot of contents on a map

Abstract

What if c.geo was not there
Plone products Cons
Products.Maps 1. speci?c for Archetypes
Products.ATGoogleMaps 2. can only georeference points
redturtle.maps.core 3. can only use Google Maps
raptus.article.map 4. developed for a speci?c project

Abstract

collective.geo manifesto
modular and easily extendable
up to date and taking advantage of ZCA
not related to a speci?c map service

Abstract

Use the location ?eld
ENEA
We can use the location ?eld
of a content-type to
geo-locate the of?ces of a
company

Archetypes
collective.geo

http://www.enea.it

Abstract

Dexterity content types TTW
Tropical Data Hub
We can assign collective.geo
Maps behaviour to a
Dexterity content-type in
order to make it
geo-referenceable

Dexterity
collective.geo.behaviour

http://tropicaldatahub.org/

Abstract

Not only points
IW:LEARN
c.geo allows to geo-reference
content with different shapes

Points
Lines
Polygons

http://iwlearn.net/

Abstract

Flexitopic
We can aggregate
geo-referenced contents with
a Plone collection and, with
?exitopic, we can show the
results on a table and
paginate them

collective.?exitopic
c.geo.?exitopic

Abstract

More customizations
AORIF
The modular structure of
collective.geo allows us to
customize it in a simple way

On saving a content we can
geolocate its address and show
it on a map. The user doesn't
need to know the coordinates
neither to use a complex UI.

Abstract

Backend/frontend
We can use a different javascript
map services to display contents.

Google maps
Polymaps http://polymaps.org/
Lea?et
http://lea?et.cloudmade.com

Kartograph
http://kartograph.org

http://ferraraterraeacqua.it/

Abstract

Plone.it - users' map
We can also view the portal
users in a speci?c map

With a portlet we can include the
map in a different context such
as a landing page.

collective.geo.usersmap

http://plone.it/partecipa

Abstract

Looking for my content
Inside Plone when an object is geo-referenced an
event is ?red by
collective.geo.index collective.geo.geographer

External catalogs <subscriber
handler=".MySubscriber"
SOLR for="IObjectGeoreferencedEvent"
/>
collective.solr

PostGIS

Abstract

collective.geo under
the hood

The core of collective.geo
Dependencies Installation
Shapely [buildout]
extends = http://dist.plone.org/release
libgeos_c /4.2.1/versions.cfg

geopy eggs =
collective.geo.bundle
BeautifulSoup BeautifulSoup
...

Note: Shapely dependency will be removed in the next release

Abstract

collective.geo structure

Abstract

collective.geo.openlayers
Includes the javascript library Openlayers in Plone and some other
javascripts that are useful for managing maps in collective.geo

layer = new OpenLayers.Layer.Google(
'Google maps',
{
'sphericalMercator':true,
numZoomLevels:20
}
)

Abstract

collective.geo.geographer
based on zgeo.geographer and >>> class Placemark(object):
... implements(
zgeo.plone.geographer ... IGeoreferenceable,
... IAttributeAnnotatable
provides the basic mechanism to ... )
enter geographic data into
>>> placemark = Placemark()
georeferenceable contents
>>> geo = IGeoreferenced(placemark)
>>> geo.setGeoInterface('Point',
any object can be georeferenced ... (-105.08, 40.59))

Abstract

collective.geo.settings
store default settings for collective.geo

map center
zoom level
which layers have to be shown on the map
which contents can be georeferenced
default styles for all features

Abstract

collective.geo.mapwidget
manages the mechanism that handles Openlayers maps in Plone
each map widget is a Zope component which contains a series of
layers
all the maps in collective.geo are composed by one or more map
layers and each layer returns a javascript snippet by a page template
which contains all information about the layer itself

Abstract

collective.geo.mapwidget
>>> from collective.geo.mapwidget import maplayer
>>> class BingStretMapLayer(maplayer.MapLayer):
... name = u"bing_map"
... Title = _(u'Bing Streets')
... type = 'bing'
... jsfactory = """
... function() {
... return new OpenLayers.Layer.VirtualEarth('%s',
... {'type': VEMapStyle.Shaded,
... 'sphericalMercator': true});
... }""" % Title

<metal:layer
use-macro="context/@@collectivegeo-macros/map-widget" />

collective.geo.contentlocations
user interface for georeferencing Archetypes content types

data can be inserted in WKT
format
geocoding with geopy
it is possible to set
customized styles

Abstract

collective.geo.kml
registers a kml view on the georeferenced objects and on folderish
contents such as Folders and Collections.

the KML ?le can be used on external services like Google Earth/Maps

Abstract

Dexterity
collective.z3cform.mapwidget
it's a speci?c widget for z3c.form that allows to manage the
geographic data in an easy way

collective.geo.behaviour
it's a Dexterity behaviour that allows to georeference contents and
uses the annotations mechanism of collective.geo.geographer for
registering data

Abstract

collective.geo.mapcontent

Abstract

collective.geo.?le
it provides a view for KML, KMZ (Keyhole Markup Language) and GPX
(GPS eXchange Format) ?les.

The view renders the ?le in a openlayers Map using the collective.geo
library.

Abstract

Conclusion
7 packages on the core (two more for Dexterity soon)
9 addons packages
translated in 9 languages
Coactivate http://www.coactivate.org/projects/collectivegeo
Readthedocs http://collectivegeo.readthedocs.org

Abstract

Contributors
Sean Gillies Christian Ledermann - nan
Silvio Tomatis - silviot David Beitey - davidjb
Gerhard Weis - gweis Maurizio Delmonte - miziodel
David Breitkreutz - rockdj Alice Narduzzo
Makina corpus Enrico Barra

Abstract

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Where is my content?

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