Generate a map for https://www.ccc.de/regional from Wikidata and the doku.ccc.de Semantic MediaWiki data.

Find a file

s3lph 80a2f5ee78 All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details Split GeoJSON into single polygons, producing smaller SVG		2022-10-14 21:50:09 +02:00
cache.example	Split GeoJSON into single polygons, producing smaller SVG	2022-10-14 21:50:09 +02:00
style	Generate standalone SVG	2022-10-14 20:32:58 +02:00
.gitignore	Create imagemap, download ALL chaostreffs, variate distance in label placement	2022-10-12 02:43:47 +02:00
.woodpecker.yml	Simplify and improve text layouting. Still not optimal, but MUCH better. Also add a CLI flag for renaming cities	2022-10-09 07:12:43 +02:00
generate_map.py	Split GeoJSON into single polygons, producing smaller SVG	2022-10-14 21:50:09 +02:00
LICENSE	License	2022-10-09 02:26:47 +02:00
map.readme.png	Major refactoring	2022-10-13 04:00:07 +02:00
README.md	Update README	2022-10-12 02:48:14 +02:00
requirements.txt	Cleanup	2022-10-08 21:17:31 +02:00

README.md

erfamap

Generate a map for https://www.ccc.de/regional from Wikidata, Nominatim and the doku.ccc.de Semantic MediaWiki data.

TL;DR

pip3 install -r requirements.txt
export DOKU_CCC_DE_BASICAUTH=username:password
./generate_map.py --update-erfalist
ls -al out/

Installation

Create a Python virtualenv: python3 -m virtualenv venv
Enable the virtualenv: . venv/bin/activate
Install the dependencies: pip install -r requirements.txt

Instead of following these steps, you could also install the dependencies from your OS' package manager.

Usage

For a quick test run, point the script at the cache.example directory:

./generate_map.py --cache-directory cache.example

This creates the following files in out/:

map.svg is the map as a SVG image, with clickable links.
map.png is the map as a PNG image.
imagemap.html includes map.png, along with a HTML image map that makes the dots and labels clickable.
erfamap.html includes map.svg, with map.png and an imagemap as fallback.
style/ contains the stylesheet and font.

If the wrong font is used in the PNG, make sure the chosen font is installed on your system. (CairoSVG does not support the use of @font-face in style sheets.)

Usually you'll want to keep the border cache, but renew the Erfa & Chaostreff list from time to time:

./generate_map.py --update-erfalist

For this, you need to provide the HTTP Basic Auth credentials to doku.ccc.de via an environment variable:

export DOKU_CCC_DE_BASICAUTH=username:password

A run without cache takes some time as it fetches all data from their sources:

Get a list of countries in Europe and federal states in Germany from Wikidata.
Download all these countries' and states' border shapes from Wikimedia Commons.
Get a list of Erfas & Chaostreffs from the doku.ccc.de Semantic Mediawiki API.
Resolve all POIs' (Erfas & Chaostreffs) street addresses' to geocoordinates using Nominatim.

Use the cache at least for the country and state borders. Otherwise, Wikidata will start rate limiting pretty quickly.

License

Unless otherwise noted, the contents of this repository are licensed under the MIT License (See LICENSE).

Fonts

The font contained in style/concertone-regular.ttf was created by Johan Kallas (johankallas@gmail.com) and is licensed unter the terms of the SIL Open Font License v1.10.

Geoshape Data

The geoshape data contained in cache.example is in the public domain.