I need to represent graphically a directed graph, with possibility of defining events when clicking the nodes.
But the library needs to be free, because it's for a professional purpose and I won't get lucky on getting a paid one.
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Do you mean graphs having nodes and edges or do you mean charts? – Lincoln May 15 '12 at 13:46
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jGraph? jFreeChart? No clue what kind of graph you're talking about. – Dave Newton May 15 '12 at 13:46
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Nodes and edges. A directed graph. jGraph is the mxgraph right? And isn't free – Mind May 15 '12 at 13:47
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Sorry for the stupid question, and yes I read the definition in wiki. But does that mean I could use it in an research project application? In the jGraph I find only this: http://www.jgraph.com/jgraphdownload.html But that doesn't seem like the jGraph library that I've found examples of. – Mind May 15 '12 at 13:55
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You can use it freely (even commercially). Basically the only thing you need to do is leave the original copyright notice somewhere in the Readme... – Lincoln May 15 '12 at 14:37
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@Mind - it is not a good idea to seek (what amounts to) free legal advice from no-lawyers. If you cannot get your head around what a license means, and you are worried about it, talk to a legal professional ... – Stephen C May 15 '12 at 16:58
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