![]() 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. Add Component.Similarly, graph elements are analogous to HTML DOM elements-they are styled by the stylesheets and programmatically accessible via the JS core API.Add setup and version explanation to README.Add support for headless, styleEnabled and the following (canvas renderer) rendering hints: hideEdgesOnViewport, textureOnViewport, motionBlur, motionBlurOpacity, wheelSensitivity, pixelRatio.When patching, apply layout outside of batching.Update dependencies and lint configurations.Change from webpack to microbundle ( rollup based).In particular, since you frequently need to explicitly call cytoscape functionality in your larger project, this helps ensure only one copy of it is loaded. BREAKING: Move cytoscape to peer dependencies for easier use in other packages.For example, you may specify elements as the following: Using Immutable allows for cheaper diffs, which is useful for updating graphs with many elements. The props used to control the reading and diffing of the main props are listed below.Įxamples are given using Immutable. non JSON props), for example an object-oriented model or an Immutable model. This component allows for props of custom type to be used (i.e. The style attribute of the div containing CSS styles, e.g. The class attribute of the div containing space-separated class names, e.g. These props allow for setting built-in HTML attributes on the div created by the component that holds the visualisation: id If true, elements have immutable selection state, e.g. If true, nodes can not be moved at all, e.g. If true, nodes automatically can not be grabbed regardless of whether each node is marked as grabbable, e.g. Whether shift+click-and-drag box selection is enabled, e.g. Whether the zoom level of the graph is mutable by user gestures (e.g. Whether the zoom level of the graph is mutable overall, e.g. The maximum zoom level of the graph, e.g. The minimum zoom level of the graph, e.g. Whether the panning position of the graph is mutable by user gestures such as swiping, e.g. Whether the panning position of the graph is mutable overall, e.g. Viewport mutability & gesture toggling panningEnabled
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