Example applications driven by Vega dataflows.

The Vega language uses a JSON syntax for describing interactive visualizations. These JSON specifications are then compiled to a reactive dataflow runtime. As of Vega version 3.0, the dataflow runtime is a stand-alone library, allowing developers to build dataflows directly, or author new high-level languages that use the same runtime.

This repository contains examples of how to build reactive data visualizations directly using vega-dataflow and related modules. The examples here demonstrate use of the JavaScript API for creating and connecting dataflow operators.

See vega-runtime for a JSON syntax for serializing dataflow graph descriptions.

1. Install dependencies via npm install.
2. Build the Vega dataflow code via npm run build.
3. Launch a local web server in the top-level directory (e.g., python -m SimpleHTTPServer 8000).
4. Load the examples in your browser (e.g., at https://localhost:8000/examples/).