[ddj] Visualizing data on a map of Germany (county-level)

Friedrich Lindenberg friedrich.lindenberg at okfn.org
Thu Jun 4 15:25:25 UTC 2015

For Germany, check out:

* http://checkgermany.de/

The most common issue with German municipal ("Kreis") level data is the
fact that the regional delimitations (and hence their AGS ids) change
surprisingly often, the last major reform was in 2009 and affected most of
Mecklenburg-Vorpommern and Aachen. If the municipal AGS in your data and
your map files don't match up, the first thing to do is to make sure that
both refer to the same year. This makes comparisons across different years
(or even decades) an incredibly tough thing to pull off.

In terms of tools: QGIS, and the tools mentioned here around topojson and
geojson ;)


- Friedrich

On Thu, Jun 4, 2015 at 5:06 PM, Maurizio Napolitano <napo at fbk.eu> wrote:

> On Thu, Jun 4, 2015 at 2:13 PM, Matthew Fullerton
> <matt.fullerton at gmail.com> wrote:
> > In case its any help there's a great source of all the Landkreise as
> geojson
> > here:
> https://github.com/isellsoap/deutschlandGeoJSON/tree/master/4_kreise
> >
> > There are probably various approaches for matching these to the data but
> in
> > terms of coloring things differently according to data, cartoDB is quite
> > good (www.cartodb.com).
> You can also try with topojson and d3 -
> http://bl.ocks.org/mbostock/5925375
> or leaftlet and geojsoncss -
> https://github.com/albburtsev/Leaflet.geojsonCSS
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