cytoscape.js | Graph theory library for visualisation
kandi X-RAY | cytoscape.js Summary
kandi X-RAY | cytoscape.js Summary
Cytoscape.js is a fully featured graph theory library. Do you need to model and/or visualise relational data, like biological data or social networks? If so, Cytoscape.js is just what you need. Cytoscape.js contains a graph theory model and an optional renderer to display interactive graphs. This library was designed to make it as easy as possible for programmers and scientists to use graph theory in their apps, whether it's for server-side analysis in a Node.js app or for a rich user interface.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of cytoscape.js
cytoscape.js Key Features
cytoscape.js Examples and Code Snippets
License : Strong Copyleft (CC BY-SA 4.0)
Copyimport * as cytoscape from 'cytoscape';
import * as popper from 'cytoscape-popper';
cytoscape.use( popper );
document.addEventListener("DOMContentLoaded", function() {
var sampleDataset = [{
group: "nodes",
data: {
id: "16150999",
name: "xps plrmr",
type: 0,
code: "7704322293"
},
classes: "class1export class MyComponent implements OnInit {
constructor(private zone: NgZone) {}
ngOnInit() {
this.zone.runOutsideAngular(() => {
// Initialize cytoscape
cytoscape({...});
});
}
}
// Initialize cytoscape
cy = window.cy = cytoscape({
container: $('#diagram'),
boxSelectionEnabled: false,
autounselectify: true,
layout: {
name: 'random'
},
elements: L,
style: [
{
selector: 'node', // Initialize cytoscape
cy = window.cy = cytoscape({
container: $('.cy'),
boxSelectionEnabled: false,
autounselectify: true,
layout: {
name: 'yourLayout'
},
style: [
Community Discussions
Trending Discussions on cytoscape.js
QUESTION
I'm trying to build a webpage on which embed a visualization window for my local graph database. The graph database I'm using is Neo4j and for visualization I'm trying to use Cytoscape. Until now, I embedded a test graph in a webpage thanks to Cytoscape.js by putting some nodes and relationships directly in the JavaScript code. The only thing I still have problem with is the connection between Cytoscape and my local Neo4j Database. Which would be the best way to do this?
...ANSWER
Answered 2022-Jan-13 at 16:27Typically, I answer Cytoscape desktop (not Cytoscape.js) questions, but I have built a web site (see https://spoke.rbvi.ucsf.edu) that does exactly what you are proposing. For a number of reasons, we implemented it with an intermediate REST interface so that we don't have to expose our Neo4J database. The REST interface does all of the queries and spits out cytoscape.js JSON formatted networks...
-- scooter
QUESTION
I am using cytoscape.js and the edgehandles extension (https://github.com/cytoscape/cytoscape.js-edgehandles).
Currently I am automatically resizing the line width of my edge using the event 'zoom':
ANSWER
Answered 2022-Jan-12 at 14:23You can give a function for a style. The drawback is the functions are not JSON serializable. So If you need to import/export a graph with cy.json() you should also apply the function styles.
QUESTION
I'm trying to use cytoscape.js to display a graph on my page and I'm having a hard time just getting a basic instance to display properly.
Code Breakdown:
I get the graph elements via an AJAX call, pass the elements into the cytoscape constructor, and display the instance in a Bootstrap modal.
Here's my JavaScript:
...ANSWER
Answered 2022-Jan-03 at 18:17Ok, OP here. I think my problem is with Bootstrap.
I started by noticing that I call $('#cyModal').modal('show'); after I've finished initializing the Cytoscape instance. I realized that before I call $('#cyModal').modal('show'); the div container for my Cytoscape instance has no size and is invisible. So I tried calling $('#cyModal').modal('show'); before initializing Cytoscape, but that still didn't work. Furthermore, I noticed that the modal wasn't actually showing until after Cytoscape initialized.
Apparently, for this sort of thing, I need to wait for the Bootstrap modal to fire the 'shown' event before setting my Cytoscape layout to be sure that the div is visible and has a size. So I put my layout setter in a listener for shown.bs.modal:
QUESTION
I am building an interactive graph app where the user would upload a data file. The app would then build the graph from the input file.
I am having problems with making the input work with the cytoscape . More specifically, the file dialog window does not pop up when I include the div. That is, the input button is not responsive unless I comment out the cytoscape .
Please see the code below. I guess, this is not cytoscape specific. However, I could not get to the bottom of this, so I am posting the complete instance of the problem.
...ANSWER
Answered 2021-Nov-20 at 07:36It's related with the z-index of the divs. In your case, because you don't assign z-indexes to the divs and add cy div at the end, it is rendered on top, so you cannot interact with the buttons.
You can assign a z-index to cy div such as -1 to send it to the background:
QUESTION
I am learning Cytoscape.js. I successfully make a HTML file containing this basic graph. I try to export the graph to image using:
...ANSWER
Answered 2021-Sep-24 at 12:12If you have the following (make sure the DOM is loaded before trying to query for elements):
HTML:
QUESTION
I'm using cytoscape.js 3.19.1 and I cannot figure out how to combine multiple edges into one, and have the weight increased of that one edge.
I am now looking for a solution where 2 edges get combined into one with a width of 2, 3 edges combined into one with a width of 3, etc.
I am changing the color of the nodes with this code:
...ANSWER
Answered 2021-Sep-07 at 08:09Actually, you might achieve this using some different styles on the edges. "haystack" or "straight" might be useful. Check them https://js.cytoscape.org/demos/edge-types/
Or you might use https://github.com/iVis-at-Bilkent/cytoscape.js-expand-collapse
Check its demo and collapse the edges.
QUESTION
I am creating a graph using cytoscape.js and I have compounded nodes which are inside the parent node. I would like to have the title of the main/parent node at the top of the node but inside the node. Is that possible in cytoscape?
I have tried using using halign and valign. Whenever I use top value, it shows outside the box.
Is there a extension or a plugin that lets us do it?
Example with child node: https://stackblitz.com/edit/cytoscape-call-method-child-efmbaj?file=src%2Fapp%2FstylesheetObject.ts
...ANSWER
Answered 2021-Jun-25 at 08:46As you can read here, you can only place labels inside a node with the center option, a good configuration (label inside at the top) requires a margin to be added to your label:
QUESTION
I want to select nodes in cytoscape using operators "and" and "or".
Based on the [cytoscape.js][1] document
[1]: https://js.cytoscape.org/#selectors, the users can use the below syntax for "and" operator, but i couldn't find any syntax for "or" operator.
...ANSWER
Answered 2021-Jun-19 at 06:21Below should work. Give attention to the COMMA. Comma is used for logical OR
cy.nodes("[weight >= 50],[height < 180]");
QUESTION
I'm refactoring old code with react-cytoscapejs. In the past it was possible to identify clicks on empty space in cytoscape.
...ANSWER
Answered 2021-Apr-24 at 09:25You can just use the normal tap event without specifying the target. That way, you get all events and you can filter from there:
QUESTION
I understand that I can edit the color of nodes and edges in cytoscape.js
- For nodes, I can use selector: 'node'
- For edges, I can use selector: 'edge'
- Similar to this: Cytoscape.js - Set core background to dark?
What selector should I use for the background color? I want to toggle between a light and dark background (like a toggle for light/dark mode).
Thank you very much for anyone who can answer.
...ANSWER
Answered 2021-Mar-30 at 09:40You can toggle the background color with some simple js code. I implemented this functionality with .addEventListener() on a button click:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install cytoscape.js
Run npm run <target> in the console. The main targets are:. The default test scripts run directly against the source code. Tests can alternatively be run on a built bundle. The library can be built on node>=6, but the library's bundle can be tested on node>=0.10.
build: do all builds of the library (umd, min, umd, esm)
build:min : do the unminified build with bundled dependencies (for simple html pages, good for novices)
build:umd : do the umd (cjs/amd/globals) build
build:esm : do the esm (ES 2015 modules) build
clean : clean the build directory
docs : build the docs into documentation
release : build all release artifacts
watch : automatically build lib for debugging (with sourcemap, no babel, very quick) good for general testing on debug/index.html served on http://localhost:8080 or the first available port thereafter, with livereload on debug/index.html
watch:babel : automatically build lib for debugging (with sourcemap, with babel, a bit slower) good for testing performance or for testing out of date browsers served on http://localhost:8080 or the first available port thereafter, with livereload on debug/index.html
watch:umd : automatically build prod umd bundle (no sourcemap, with babel) good for testing cytoscape in another project (with a "cytoscape": "file:./path/to/cytoscape" reference in your project's package.json) no http server
dist : update the distribution js for npm etc.
test : run all testing & linting
test:js : run the mocha tests on the public API of the lib (directly on source files) npm run test:js -- -g "my test name" runs tests on only the matching test cases
test:build : run the mocha tests on the public API of the lib (on a built bundle) npm run build should be run beforehand on a recent version of node npm run test:build -- -g "my test name" runs build tests on only the matching test cases
test:modules : run unit tests on private, internal API npm run test:modules -- -g "my test name" runs modules tests on only the matching test cases
lint : lint the js sources via eslint
benchmark : run all benchmarks
benchmark:single : run benchmarks only for the suite specified in benchmark/single
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