make.opendata.ch wiki

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
===== Tax Freedom Day =====

Live Demo: http://interactivethings.github.com/make-opendata-finance/map.html

Recently, various media published results of the ESTV (Eidgenössische Steuerverwaltung) which show the so-called "Tax Freedom Day", the day of the year when a citizen has earned enough money to compensate for the taxes he/she paid. Many of you probably heard of this.

The **idea** of this project is thus to craft an interactive, thematic map/visualization of this data, possibly realized with state-of-the-art web technology such as D3.js. The visualization should allow the viewer a quick, informative and salient overview of the spatial disparities in the Swiss tax system.

{{:project:financial_visualizations.jpg?200|}}
{{:project:component1.jpg?200|}}
{{:project:component2.jpg?200|}}
{{:project:components.jpg?200|}}
===== Data =====

  * [[http://www.estv2.admin.ch/d/dokumentation/zahlen_fakten/tax_freedom_day/2011/index.htm|Spreadsheet Data from ESTV]]
  * [[http://www.bfs.admin.ch/bfs/portal/de/index/dienstleistungen/geostat/datenbeschreibung/generalisierte_gemeindegrenzen.html|Community Polygons (Gemeindegrenzen) as SHP]]
  * [[https://github.com/interactivethings/swiss-maps|Swiss Cantons/Municipalities as TopoJSON]]


There is one continuous date variable (the day one compensates taxes), and two factors, form of living (family, kids, etc.) and yearly income. The spatial variable is the township where one lives, accompanied by a BFS-number which can be used to easily link the township name to (SVG) polygons used for rendering the map.

===== Vis Details =====

The entities (the townships with their respective compensation dates) could be visualized as appropriately coloured polygons on a simple map (e.g. a colour scale from green to red for early dates and late dats respectively ). To introduce animation, the rendering/introduction of the polygons could be timed according to their compensation dates. 
There should be a switch where the user can toggle form of living (factor 1) and a draggable scale bar where the user can
set the amount of yearly income (factor 2). The map would either update automatically or upon pressing a button.

Many more combinations/ideas are possible!

===== Team =====


  * [[user:benjamin_wiederkehr]]
  * [[user:philippkueng]]
  * [[user:fabian]]
  * [[user:wnstnsmth]]
  * [[user:umaendli]]


===== Links =====

  * for data, see above
  * [[http://make.opendata.ch/forum/discussion/72/project-idea-vis-4-tax-freedom-day|Forum Thread]]
  * [[http://d3js.org|D3.js]]
  * [[http://downloads.wnstnsmth.net/makefinance2013|Presentation slides]]
  * [[https://github.com/interactivethings/make-opendata-finance|Github]]
  * [[http://www.d3noob.org|D3.js Tips and Tricks]]

<GITHUB interactivethings/make-opendata-finance>

{{tag>status:concept finance needs:dev needs:data needs:expert}}