Viewing profile — jacomyal

An open-source web application for visual network analysis

It's functionally very close to https://colorbrewer2.org , which has been online for more than 15 years. I think it's not a coincidence, and some credits wouldn't have hurt anyone.…

FYI there is indeed a strong demand, and having the ability to develop full-stacked web apps is a nice plus as well. You can check this Google Group[0] to see actual requests (full…

Both are really different. Phantom.js is a headless browser while artoo is a tool to easily scrape data from website. But combining both would be nice to make it possible to automa…

Basically, it makes scraping accessible to almost anyone who can use a browser and write some CSS selectors.

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:…

I keep this in mind. We need to find an easy way to export examples formatted with the good template etc... before putting anything public, to ensure it's not too hard to update th…

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

It is one hard part. But displaying thousands of elements in a web page is another one. Also, sigma does provide in a plugin a force-directed layout, ForceAtlas2, initially develop…

Actually, as with d3, you can develop your own network visualization layouts. The main difference is that sigma only deals with graphs drawing, so it deals without effort with drag…

First, the canvas element does not work everywhere ( http://caniuse.com/canvas ). Also, canvas is faster in Chrome. For instance, here is one benchmark about layered canvases (sigm…

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 alrea…