Subject: [xsl] Re: Re: Re: Network diagram - node set intersection From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx> Date: Mon, 23 Feb 2004 22:21:28 +0100 |
<cknell@xxxxxxxxxx> wrote in message news:B0018932674@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > I've looked over the DTD, I hope I won't get slapped on the wrist for being off-topic, but I think the answer to one more question will settle the matter of graphML for me. It appears that an edge can have one source and one target. If true, that means that I can't use it. > > What appears to be ambiguous is, I suspect, merely the fact that in the model I am representing a node can have more than one predecessor node and more than one successor node. The nodes represent tasks and the edges represent a temporal relationship between them. The temporal relationships are Start-Start, Finish-Start, and Finish-Finish. > > This means that a task may have a Finish-Start relationship to more than one successor task. That is to say in my original diagram, Task B and Task C cannot begin until Task A is complete, but there is no temporal relationship between Task B and Task C. Similarly, Task D cannot start until both Task B and Task C are complete. > > My review of the DTD seems to preclude using graphML to represent such a model. Do I understand this correctly? It seems to me that you are mixing nodes with edges. An edge always has one source and one target. However, for the types of graphs described by graphML many edges may leave one node, many edges may enter one node, there may be more than one edge that leaves a nodeA and enters a node B. Such kinds of graphs are probably the most complex -- they are called multigraph. The fact that one node in your model can have more than one parent means that there may be more than one edge entering this node -- something fully supported by graphML. Cheers, Dimitre Novatchev, FXSL developer, http://fxsl.sourceforge.net/ -- the home of FXSL Resume: http://fxsl.sf.net/DNovatchev/Resume/Res.html XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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