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jacomyal

sigma.js

TypeScript2012–2018

jacomyal / sigma.js

sigma.js

A JavaScript library aimed at visualizing graphs of thousands of nodes and edges

Web Development Data & Databases Creative & Media Libraries & SDKs

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6Distinct people

8Mentions

0Explicit recommenders

12.2KGitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

A JavaScript library aimed at visualizing graphs of thousands of nodes and edges

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year8 dated mentions

Observed mentions: 2012-03-22 23:13:56 UTC to 2018-11-26 15:59:24 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2012	2012-01-01 00:00:00 UTC	2013-01-01 00:00:00 UTC	1	0	1
2013	2013-01-01 00:00:00 UTC	2014-01-01 00:00:00 UTC	0	0	0
2014	2014-01-01 00:00:00 UTC	2015-01-01 00:00:00 UTC	4	1	3
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	2	0	2
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	0	0	0
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	0	0	0
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	1	0	1

What Hacker News says

8 sources

jeremieb·Nov 26, 2018

I agree, Cytoscape.js provides more graph theory algorithms; but Sigma.js also has some, including A*: https://github.com/jacomyal/sigma.js/tree/master/plugins/sig...

In Cytoscape.js – Graph theory / network library for analysis and visualisation

Buetol·Nov 15, 2015

If you like sigma.js, it's worth checking out a very active fork of the library with commercial support: https://github.com/Linkurious/linkurious.js For example, sigma.js is blurry with an hdpi screen. Here is my PR to fix that: https://github.com/jacomyal/sigma.js/pull/639

In Sigma.js: a JavaScript library for graph drawing

jonesetc·Nov 15, 2015

I believe that the only bundled layout is a force atlas 2 force-directed. https://github.com/jacomyal/sigma.js/tree/master/plugins It does look like it should be reasonable to add in any custom layouts though.

In Sigma.js: a JavaScript library for graph drawing

sunilkumarc·Jun 9, 2014Submission

1 points · Open discussion

jacomyal·Feb 5, 2014

That is weird, indeed. The thickness of the edges should be related to their "size" value. After that, check how sigma rescales the nodes and edges in the related wiki page: https://github.com/jacomyal/sigma.js/wiki/Settings#wiki-resc...

In Sigma.js, a JavaScript library dedicated to graph drawing

auvrw·Feb 5, 2014

upvote, because this is the correct answer to the question "how does this work differently from d3," as opposed to the question, "what are the advantages/disadvantages of using this over d3." a quick f12-for-firebug reveals that sigma indeed uses the canvas element. i haven't actually used the library, but it appears ( https://github.com/jacomyal/sigma.js/blob/master/package.jso... ) to in fact be built directly on canvas, which is impressive in some sense but probably does duplicate a lot of work that could be avoided by using a generic-canvas-drawing-but-not-specifically-graph-drawing library. d3 stands for "data-driven-documents" and is actually not specific to graphs. at the core, it's about (as the expanded name suggests) connecting html documents to javascript data structures. of course, lots of libraries -- angular, etc. -- may

Read the rest

be described in such general terms, so more specifically, d3 is useful when you have both a lot of data (or a lot of structure to your data) and a lot of html elements to layout according to that data. it just so happens that <svg> is now actually a tag in html ( : / ? i mean that, the advances in the browsers themselves, was news to me, when i looked at d3 for the first time), so yeah, d3 is most commonly used when the elements you want to lay out are a bunch of svg tags. anyway, i really like d3 (and probably would like three.js, for that matter, if i took the time to toy around with it) b/c i think it does one fairly general thing, does it well, and has practical applications.

In Sigma.js, a JavaScript library dedicated to graph drawing

jacomyal·Feb 4, 2014

You can check the examples in the repository: https://github.com/jacomyal/sigma.js/wiki#wiki-getting-start...

In Sigma.js, a JavaScript library dedicated to graph drawing

jacomyal·Mar 22, 2012

I am formerly a big fan and user of Gephi, so I think graph drawing is "important enough" to deserve its own JavaScript library, which is why I made sigma.js. I know d3.js is already a great tool, but it looked hardcore for me to tweak it to draw graphs on a Canvas element (it is more easy to use SVG elements). And basically, using a Canvas makes it much more scalable. About the features to come, you can check https://github.com/jacomyal/sigma.js/blob/master/TODO.txt to see what will come soon. Also, of course, don't hesitate to add some ideas you have in that list :)

In Sigma.js: a lightweight JavaScript library to draw graphs