EEA Daviz

Introduction

EEA Daviz is a web tool developed by the European Environment Agency which helps creating interactive data visualizations easily through the web browser, no extra tools are necessary. It is free and open source.

You can generate attractive and interactive charts and combine them in a dashboard with facets/filters which updates the charts simultaneously. Data can be uploaded as CSV/TSV or you can specify SPARQL to query online Linked open data servers (aka sparql endpoints).

Daviz is the first Semantic web data visualisation tool for Plone CMS, entirely web-based!

At the moment Simile Exhibit and Google Charts visualizations are supported. The architecture allows to extend Daviz with more visualisation libraries (visualisations plugins).

Contents

Introduction
Main features
Video Tutorials
Live demos
Architecture overview
Installation
- Google Maps API Key
  - Plone
  - Zope
Dependencies
Source code
Copyright and license
More documentation
Links
Funding and project management

Main features

No desktop tools needed to make visualizations. all web based.
Data input: easy copy and paste of data table from any webpage or excel sheet
Data input from URL (CSV/TSV/JSON)
Data input: drag-and-drop your data from CSV/TSV files, and we do the rest
Data input advanced: retrieve data from any SPARQL endpoint on the fly
Intuitive visualization editor to create interactive charts.
Large amount of visualizations available: Area, Bar, Bubble, Candlestick, Column, Combo Chart, Gauge, Geo Intensity Maps, Line, Pie, Radar, Scatter, Stepped Area, Table, Tree Map, Motion Charts, Faceted search table, Faceted tiles, Faceted timeline, Faceted map and more…
Dashboard. Group charts into one or more dashboards.
Share any chart. Embeddable visualization in any webpage.
Customizable chart options and colors
Data table manipulation via drag and drop, preparing table for chart
Pivot table (Transpose), transform row values into columns
Modular framework for extending it with more visualizations
Branding: add your own logo to each chart + QR code
And much more…

It is simple to use, needs no desktop application, everything is done through the web by uploading an “excel file”, CSV, TSV. You can also query the “web of data” via public available sparql endpoints.

You can easily make visualizations like:

See also initial project wiki page for the reasoning behind this project.

Video Tutorials

Most of DaViz features are presented throughout a series of video tutorials available under the EEA Web Systems Training YouTube channel. The screencasts are divided in two playlists: Basic and Advanced.

Live demos

Architecture overview

At the moment Simile Exhibit and Google Charts visualizations are supported. The architecture allows to extend Daviz with more visualisation libraries (visualisations plugins).

Installation

zc.buildout

If you are using zc.buildout and the plone.recipe.zope2instance recipe to manage your project, you can do this:

Update your buildout.cfg file:
- Add eea.daviz to the list of eggs to install
  
  [instance] … eggs = … eea.daviz
Re-run buildout, e.g. with:
```
$ ./bin/buildout
```

Google Maps API Key

Plone

Within ZMI -> Plone Site -> portal_properties add a plone property sheet called geographical_properties and inside it add a new string property called google_key.

Zope

Within ZMI -> Top Folder -> manage_propertiesForm add a string property called google_key

In this property you have to paste the Google maps API KEY, follow instruction https://developers.google.com/maps/documentation/javascript/tutorial#api_key

The Google account you use to generate the key has to be owner of the site, this is done by verification via Google webmaster tools.

Dependencies

EEA Daviz has the following dependencies:

Plone 4.x
eea.app.visualization
eea.sparql
eea.forms
eea.googlecharts
eea.exhibit
collective.js.jqueryui < 1.9 (Plone 4.0, 4.1, 4.2)
collective.js.jqueryui > 1.9 (Plone 4.3+)

The following package are optional. Still they can improve the user experience with this tool:

eea.relations
eea.cache (Check eea.cache documentation for more about memcache configuration)
eea.depiction

[instance] … eggs = … eea.daviz [full]

zcml = … eea.daviz-overrides eea.daviz-full

Source code

Latest source code (Plone 4 compatible):

Plone 2 and 3 compatible (Simile Exhibit visualisations only):

<https://github.com/collective/eea.daviz/tree/plone25>

Copyright and license

The EEA Daviz (the Original Code) is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

More details under eea.daviz/docs/License.txt

Funding and project management

EEA - European Environment Agency (EU)

EEA & Eionet documentation hub