Module generators/sankey-content

Generates a Sankey (flow) chart as inline SVG — no JavaScript or third-party libraries required.

A Sankey diagram visualises quantities flowing from source nodes to target nodes. Node heights and flow-path widths are proportional to the values, making it easy to see dominant flows at a glance.

Typical usage in articles:

• Parliamentary flow: political group → document type → legislative outcome
• Policy flow: policy domain → committee → outcome (adopted/rejected/pending)
• Budget flow: programme area → committee → spending category