Reactodia Workspace

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@reactodia/workspace is a TypeScript library that allows to explore, visualize and make changes to the data in the form of an interactive graph based on underlying data sources.

@reactodia/workspace is an open-source fork of Ontodia project.

Installation

Install with:

npm install --save @reactodia/workspace

Quick example

import * as React from 'react';
import * as Reactodia from '@reactodia/workspace';
import * as N3 from 'n3';

const GRAPH_DATA =
    'https://raw.githubusercontent.com/reactodia/reactodia-workspace/' +
    'master/examples/resources/orgOntology.ttl';

// Use background Web Worker to compute graph layout
const Layouts = Reactodia.defineLayoutWorker(() => new Worker(
  new URL('@reactodia/workspace/layout.worker', import.meta.url)
));

function BasicExample() {
    const {defaultLayout} = Reactodia.useWorker(Layouts);

    const {onMount} = Reactodia.useLoadedWorkspace(async ({context, signal}) => {
        const {model, performLayout} = context;
        // Fetch graph data to use as underlying data source
        const response = await fetch(GRAPH_DATA, {signal});
        const graphData = new N3.Parser().parse(await response.text());
        const dataProvider = new Reactodia.RdfDataProvider({acceptBlankNodes: false});
        dataProvider.addGraph(graphData);

        // Create empty diagram and put owl:Class entities with links between them
        await model.createNewDiagram({dataProvider, signal});
        const elementTypeId = 'http://www.w3.org/2002/07/owl#Class' as Reactodia.ElementTypeIri;
        for (const {element} of await dataProvider.lookup({elementTypeId})) {
            model.createElement(element);
        }
        await model.requestLinks();

        // Layout elements on canvas
        await performLayout({signal});
    }, []);

    return (
        <Reactodia.Workspace ref={onMount}
            defaultLayout={defaultLayout}>
            <Reactodia.DefaultWorkspace />
        </Reactodia.Workspace>
    );
}

Look for more examples in the documentation.

Development

Tests

The library uses Vitest as a testing framework: run npm run test to execute all tests.

See Vitest Debugging documentation page for an integrated debugger setup for the tests (e.g. VSCode debugger).

License

The library is distributed under LGPL-2.1 or (at your option) any later version.

Scientific citations

If you use the library in your scientific projects, it would be great if you provide a link to this repository in your publication and a citation reference to the following paper:

Mouromtsev, D., Pavlov, D., Emelyanov, Y., Morozov, A., Razdyakonov, D. and Galkin, M., 2015. The Simple Web-based Tool for Visualization and Sharing of Semantic Data and Ontologies. In International Semantic Web Conference (Posters & Demos).

@inproceedings{Mouromtsev2015,
    author = {Mouromtsev, Dmitry and Pavlov, Dmitry and Emelyanov, Yury and
        Morozov, Alexey and Razdyakonov, Daniil and Galkin, Mikhail},
    year = {2015},
    month = {10},
    title = {The Simple Web-based Tool for Visualization and Sharing of Semantic Data and Ontologies},
    booktitle = {International Semantic Web Conference (Posters & Demos)}
}

It really helps our team to gain publicity and acknowledgment for our efforts. Thank you for being considerate!