![]() We are doing this as our main project for modernizing the Cytoscape ecosystem, including both desktop and web applications. ![]() Our goal is maintaining reusable visualization components for users who want to develop component-based applications quickly. Since Cytoscape.js project started as a jquery-based library, it is a bit tricky to create React based component. Here is the list of things we have so far: At this point, we decide to use Cytoscape.js as a simple renderer for graphs and all data management will be done in Redux side. This is the store / reducers used by the component. Just like other Redux applications, all data will be stored here. In our case, the actual graph and tables will be stored here. This is a thin React.js wrapper for Cytoscape.js. This uses the store above and render the network using standard react+redux architecture. Utility to connect store and component (without knowing react/redux details).Still needs to add more event handlers, but they are already in our TODO list. This is optional if you are an experienced react/redux user, but if you use this, it can render the given data without knowing technical details inside these components. It's mainly for developers who want to integrate this component to existing applications. Maybe you noticed already, but in this approach, graph data exists in both Redux store and Cytoscape.js. This is the limitation of our current approach, but it covers 90% of our use cases, so we decided to go this way. If you really need to handle huge networks in web browsers, you may need more dumb/simple renderer for speed and memory space, but I think Cytoscape.js is sufficient for most of real-world graph visualization projects. Since we've just started this project, there are tons of TODOs and we need to write more documentations, but eventually we will provide more working examples and documents shortly. The following is the one I'm working on now using these components and some other UI toolkits, and looks it works fine. Once it's ready, we'll publish the application code, too. In any case, if you need a Cytoscape.js based graph visualization component, we are happy to help.Īlthough React encourages using declarative components for everything, there's nothing stopping you from using Cytoscape normally as a model. Write your graph model in Cytoscape - or in a module on top of Cytoscape. You can pass Cytoscape instances to components if they need to access the graph data. In this approach, you treat Cytoscape as one of your models.Īlternatively, you can use Cytoscape just as a visualisation component, underneath React. That approach follows in the next section, but it requires you to do diffing. It also means you lose out on events and many other benefits. I would suggest using Cytoscape as a model, because Cytoscape is a model - it just so happens to have a renderer/component extension included in the default build. If the model ( state) for the component is just JSON, you can use cy.json() and ele.json() to rerender. In this way, your model is held completely on the React side (in JSON) - and it is updated declaratively: Just specify the JSON diffs for the viewport and the changed elements. You don't want to specify the whole graph in cy.json() or whole elements in ele.json() - only diffs, i.e.You can be clever with diffs using fast = checks for which elements and which top-level fields (e.g.You should really use Immutable to handle state with this approach (and in general, anyway). if( oldEleJson.data != newEleJson.data ). You may need to clone the newEleJson objects if your data in your elements contain nested objects (e.g.If you use the naive approach and update everything on every render(), you will cause needless overhead with additional style calculations, events, etc. if you mutate ele.data() outside the React component). Make sure you never call cytoscape() in your render method.If only React is driving writes, then there is no need for cloning (and Cytoscape does no cloning internally). You want to create an instance once per component (i.e. componentWillMount()) - not once per render.A GeneMANIA gene–gene interaction network automatically laid out and visualised with Cytoscape.js, showing interaction strength (edge thickness), interaction type (colour), multiple edges between nodes, protein score (node size) defined using a stylesheetįor increased ease of use, the library shares several concepts with the HTML + CSS + JS web model. Styling in Cytoscape.js is specified using CSS-like stylesheets, sharing as much syntax as possible with CSS. Similarly, graph elements are analogous to HTML DOM elements-they are styled by the stylesheets and programmatically accessible via the JS core API.
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