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Gephi - The Open Graph Viz Platform

gephi.org

21–30 of 36 posts

Re: Gephi - The Open Graph Viz Platform

#21
ok, I've searched for a minute how to add a node and didn't found a way. So I closed the app. Maybe in a future version, it will be possible to easily add a node in an Open Graph Viz Platform.

Re: Gephi - The Open Graph Viz Platform

#22

This looks like excellent work. Any chance on supporting other formats like spreadsheets, csv, or generic XML schemas s.t. I can just specify a couple of xpaths as the node end points and have it figure out how to draw the graph?

Gephi supports CSV imput already and has some plans to make assistant plugins to import data from other sources like Excel files, RDF or XML.

Excellent. One of the problems I've always had with graph viz tools is the need to cram my data into some predefined schema to make the tool work instead of having the tool do that kind of stuff for me.

Been playing around with it for a bit. Amazing work for a beta release. The "generate random network" option is fantastic. Some GUI bugs, like drag doesn't seem to want to turn back on, but really great stuff.

Re: Gephi - The Open Graph Viz Platform

#23
post #21

ok, I've searched for a minute how to add a node and didn't found a way. So I closed the app. Maybe in a future version, it will be possible to easily add a node in an Open Graph Viz Platform.

I'm gephi main dev. That will be fixed with better documentation asap. You can add nodes and edges by using "Node Pencil" and "Edge Pencil" tools in the toolbar.

Re: Gephi - The Open Graph Viz Platform

#24

Earlier quoted context omitted.

Gephi supports CSV imput already and has some plans to make assistant plugins to import data from other sources like Excel files, RDF or XML.

Excellent. One of the problems I've always had with graph viz tools is the need to cram my data into some predefined schema to make the tool work instead of having the tool do that kind of stuff for me. Been playing around with it for a bit. Amazing work for a beta release. The "generate random network" option is fantastic. Some GUI bugs, like drag doesn't seem to want to turn back on, but really great stuff.

Yes there is a bug with drag. I just filled a bug report https://bugs.launchpad.net/gephi/+bug/546986

Re: Gephi - The Open Graph Viz Platform

#25

This looks like excellent work. Any chance on supporting other formats like spreadsheets, csv, or generic XML schemas s.t. I can just specify a couple of xpaths as the node end points and have it figure out how to draw the graph?

Support for weka's file format would be great as well

Re: Gephi - The Open Graph Viz Platform

#26
post #21

ok, I've searched for a minute how to add a node and didn't found a way. So I closed the app. Maybe in a future version, it will be possible to easily add a node in an Open Graph Viz Platform.

I'm gephi main dev. That will be fixed with better documentation asap. You can add nodes and edges by using "Node Pencil" and "Edge Pencil" tools in the toolbar.

Quick suggestion: Instead of better documentation, I suggest you remove less-used elements from the main screen and put more emphasis on the important ones. For such an important feature (add a node), it should be trivially easy to see how to do it.

Also, it could be great to have a project open by default when you first open the application.. instead of the: file new project.

Oh, and everyone can down me, I don't care, I use a smurf account. Constructive critism = down vote, while saying wow good job, is +5 karma. So, I have 2 accounts: one to say wow, and one to say real important critismes.

Guess what, one is always around 0 karma while the other is high ranked.. what a shame :)

Re: Gephi - The Open Graph Viz Platform

#27
post #8
post #4

Earlier quoted context omitted.

It appears to be, as this doesn't seem to import any GraphViz file formats natively (sadly). From the user manual, it does sound like there's a plugin to handle them, though it's a bit ambiguous, so it may just be as an example of a possible plugin.

I'm Gephi main dev. Supporting DOT file format is in our roadmap and will be done very soon.

Have you thought about bundling some canonical example graphs and using it as a teaching tool for graph theory?

(I'm already working on a similar project. Feel free to shoot me an email at the address in my profile if you want to talk about it.)

Re: Gephi - The Open Graph Viz Platform

#28
post #5

_Related question_: Anyone know of a software to display points in 3D space on screen and allow the display to be rotated left, right, up, down, etc. (in real-time using mouse or keyboard)? I need it to run on Windows or Linux Ubuntu. Gephi looks awesome, but my data points are just 3D points, not a network. There used to be a program called MacSpin which was perfect for my needs, but is no longer available (and I do…

tulip might be what you want; I'm not sure if the viz. is built-in or just something others have done with it though. But well worth knowing about, for all interesting in graph viz.

  http://tulip.labri.fr/TulipDrupal/

Re: Gephi - The Open Graph Viz Platform

#29
post #26

Earlier quoted context omitted.

I'm gephi main dev. That will be fixed with better documentation asap. You can add nodes and edges by using "Node Pencil" and "Edge Pencil" tools in the toolbar.

Quick suggestion: Instead of better documentation, I suggest you remove less-used elements from the main screen and put more emphasis on the important ones. For such an important feature (add a node), it should be trivially easy to see how to do it. Also, it could be great to have a project open by default when you first open the application.. instead of the: file new project. Oh, and everyone can down me, I don't ca…

My guess is that your tone grated. This may help:

Moving parts in rubbing contact require lubrication to avoid excessive wear. Honorifics and formal politeness provide lubrication where people rub together. Often the very young, the untraveled, the naive, the unsophisticated deplore these formalities as “empty,” “meaningless,” or “dishonest,” and scorn to use them. No matter how “pure” their motives, they thereby throw sand into machinery that does not work too well at best.

(Heinlein, filched here: http://www.angelfire.com/or/sociologyshop/lazlong.html)

Re: Gephi - The Open Graph Viz Platform

#30
post #8

Earlier quoted context omitted.

I'm Gephi main dev. Supporting DOT file format is in our roadmap and will be done very soon.

Have you thought about bundling some canonical example graphs and using it as a teaching tool for graph theory? (I'm already working on a similar project. Feel free to shoot me an email at the address in my profile if you want to talk about it.)

If you guys go into that, I'd suggest leaving a path open for TikZ (text to embed pics in TeX, see here http://news.ycombinator.com/item?id=1204172 , about use in a graph theory book).

Makes neat print-style pictures - for example this chart: http://www.texample.net/tikz/examples/gajski-kuhn-y-chart/ , which is not a graph; but the ones in the book looked good.

P.S. http://www.texample.net/tikz/examples/prims-algorithm/ illustrates the graph algorithm with overlays.

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