Diagramming software with API allowing high customisation of shapes and actions

Posted by jenson-button-event on Programmers See other posts from Programmers or by jenson-button-event
Published on 2012-11-28T08:49:36Z Indexed on 2012/11/28 11:16 UTC
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I am after something like Visio or Lucid. A relatively simple charting/diagramming tool, to build tree-like structures from (my) pre-defined nodes (squares), but with a powerful API.

Requirements:

  • limit the type of objects allowed to be dropped on the diagram
  • validate a model (e.g. node of type A must precede node of type B; must enter node Title)
  • export a model
  • import a model

Our domain is very specific, and its a tool we'd want to offer to some of our power users. The $500 Visio licence isn't really within the business model.

I'll put no constraints on framework or deployment (web or desktop) - is there anything out there?

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