VENUS: Visual Ecosystem for kNowledge graph Understanding Systems

This repository is dedicated to VENUS, a JavaScript library for creating interactive visualizations and dashboards from SPARQL queries.

This repository contains the source code for:

• The VENUS JavaScript library
• A website with documentation and usage information
• A web editor to explore available VENUS visualizations and encodings
• A set of encoding and query examples
• A set of example apps showing how to use the library
• A minimal SPARQL proxy to use the library with non-CORS endpoints

The library is defined in the packages folder and includes the following packages.

NPM published package:

• packages/components: defines the @wimmics/venus package, which provides custom elements (venus-graph, venus-barchart) and the integration layer.

Internal packages:

• packages/core: shared utilities, encoding defaults and structures.
• packages/import: fetch data from a given SPARQL endpoint.
• packages/encoding: visualization-specific encoding managers, handles default encoding specification and validators.
• packages/transform: SPARQL JSON -> visualization data transformation layer.
• packages/visual-mapping: compute visual artifacts from encoding and data, creates color/size legend web components, creates and manages tooltips, and computes color/size scales.
• packages/rendering: handles the visualization rendering and user interactions using D3.js library.

SPARQL proxy package:

• packages/proxy: defines the @wimmics/venus-sparql-proxy, a standalone SPARQL proxy server for CORS workarounds.

The VENUS Editor helps you discover available visualization components and test encodings before integrating them into a web application. Browse the provided examples to explore VENUS capabilities.

Try it here.

A website presenting the tool and its documentation is available here.

VENUS is developed with web components that can be integrated into any web application. The example-apps directory provides ready-to-use minimal Vanilla JS code to support easy integration and quick testing.

• Install dependencies: npm install
• Build VENUS packages: npm run build
• Run homepage: npm run dev
• Run editor: npm run dev:editor

See LICENSE