Show HN: HTML5 Canvas diagramming, a quiet beta release of our library, GoJS | Hacker News Reader

Show HN: HTML5 Canvas diagramming, a quiet beta release of our library, GoJS

gojs.net

32 pointssimonsarris13 comments

Wow, this is incredible. The entity relationship example http://gojs.net/latest/samples/entityRelationship.html is dia quality. great stuff!

Looks very similar to MxGraph (http://www.jgraph.com/mxgraph.html). Would be interesting in seeing a list of what features it provides that MxGraph doesn't.

Which also looks very similar to http://mind42.com

Wow that is a great implementation! Fantastic work guys.

edit: bug report: "View this sample page's source" link at http://gojs.net/latest/samples/entityRelationship.html calls JS that goes to URL of "view-source:http://gojs.net/latest/samples/entityRelationship.html, the "view-source:" at the beginning prevents it from connecting.

Sorry! I forgot about this issue.

view-source: is a convenience protocol only supported by Google Chrome and Firefox, which makes the source look nice (syntax highlighted). When I have time I'll make an appropriate alternative for other browsers.

Nice work! Thanks for releasing it!

Direct link to samples:

http://gojs.net/latest/samples/index.html

Sort of a bum out wrt to the license. If I read it right it is free only for evaluation but not for use in your own product ala MIT? What is the pricing model then?

The pricing model is based on number of developers, number of app (domains) used, and length of support/update subscription. Pricing figures aren't final, but they won't be aimed at hobbyists, probably closer to Sencha's ExtJS prices.

Very cool! What are your plans for licensing this if someone wanted to build it into their product?

It will be sold as a standard commercial license and licensed per domain, with support and updates included for the duration of a term. The details aren't final yet, though.

What about turning the cursor to a hand when hovering on reactive elements?

Totally doable, but up to the programmer if they want that functionality or not. In the library it's as simple as setting a GraphObject's

    cursor: 'pointer'

The only sample I can think of that has that functionality is this one:

http://www.gojs.net/latest/samples/basic.html

In the above example it is set only on the colored shape to indicate that it is possible to create a new link if dragged from the edges of a node.

Reminds me of old Java applets. Very nice work

Reply on news.ycombinator.com