• Implement range slider values
• Show age span in tooltip
• Highlight selected town

• Some towns id can't be merged. The Swisstopo shapefile contains towns which were merged in 2015-2016
• Map not centered anymore since the zoom feature was added
• Remove lakes from the shapefile
• Constrain range slider to 20-24, 25-29 or 20-29 etc. age spans
• Implement range slider in JS
• Make the topojson file lighter
• Make the data files lighter by suppressing every other column (redundant values)

Preview here (french) or here (german)

Issue #1 was closed.

• Fix the colors
• Last rows to fix
• Labels for the 10 biggest cities
• Annotation when we change the age range? Bar graph on the right: amount of men and women overall. How many people (total singles number). Balkengraphik. Mobile phone: underneath, desktop: on the screen
• percentage / raw values toggle %
• No zoom (at least for Zurich)

• Find a 2015 version of swissBOUNDARIES3D
• Make a topojson file
• Is there the missing towns? YES
• Export the data again from final_dataset_per100.csv or final_dataset_totals_id.csv

The current ready-to-display data doesn't contain totals. The +/- percentages are only valid for a specific age span.
I think the nicest would be to have the totals in the datasets. So we could tell: there is xxx single men and xxx single women in Zurich, which means x% more women... I'll commit a new data file, which needs to be processed (merged with town ids, etc.)

Current colors are determined by absolute numbers, which makes it very confusing.

To do:

• store relative values or the population by town in the dataset
• set colors using relative values

• Download Swisstopo's GG25 (48 Mo)
• Use QGIS to smooth polygons then export to geoJSON
• Convert from geoJSON to topojson
• Add a "Gemeinde Nummer" column to the datasets
• Merge using a JavaScript map() function (or within QGIS)
• Adapt the current canton map code to load the new data
• New glider to be able to select an age span

The "Ledige Frauen Total +/-" and the sum of the columns don't match.
In Geneva, the "Ledige Frauen Total +/-" is 9576 while the columns sum is 10170.
I add a "Data check sums" notebook which shows the issue.