Circular Migration Plot

Creating interactive circular migration plots for the web using D3, like http://www.global-migration.info/ and http://www.german-migration.info/

Installation

Install globally with npm:

npm install circular-migration-plot -g

Usage

1. Filtration (optional)

You may want to filter countries with small migration flows:

cmp-filter data/countries.csv data/flows.csv

2. Compilation

Build the matrix json processible by the library out of the csv input file.

Usage

cmp-compile file [OPTIONS]

Available Options

• --regions, -r: Sort order for regions
• --pretty, -p: Pretty print result JSON

Examples

cmp-compile flows.csv
cmp-compile -
cat flows.csv | cmp-compile
cmp-compile flows.csv --regions North,West
cmp-compile flows.csv --regions North,West --pretty

3. Integration

<scriptsrc="dist/circular-migration-plot.js"></script><divid=timeline></div><divid=chart></div><script>CircularMigrationPlot({data: 'json/sample.json',chart: '#chart',timeline: '#timeline'});</script>

See index.html.

Lets get dirty

head -n30 data/flows.csv | cmp-filter data/countries.csv | cmp-compile > migration-flows.json

Development

Hint & Test

To run the unit tests:

npm test

For JShint:

npm run jshint

Build

The JavaScript is build using Browserify and then compressed with UglifyJS:

npm run build

Packagued files land in dist folder.

Server

A development server can be run with

npm start

License

Copyright (c) 2014 null2 GmbH Berlin
This work as well as the sample data is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.