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Anyone know of an online tool available for making graphs (as in graph theory - consisting of edges and vertices)? I have about 36 vertices and even more edges that I wish to draw. (why do I have so many? It's for pathing in a game)

Only tool available to me right now is MS Paint and it would be very messy.

Edit:

I'm not actually looking for a 'standard' - just some way to neatly draw a set of vertices and edges, preferably without having to write code. I was planning to screenshot the pic and use it in a question on gamedev but I managed to solve the problem for now. Thanks for all the answers. I still prefer GeoGebra because it accessible online, neat, accurate, aligns elements to a grid, has consistent shapes, and has a high degree of customization available.

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See also cstheory.stackexchange.com/questions/1677/… –  Raphael Dec 11 '10 at 8:58
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I actually was trying to figure out the best approach for this just yesterday. My solution was to program and draw the graph in Sage, but I couldnt figure out how to do edge colorings. –  AnonymousCoward Dec 12 '10 at 18:24
    
Is it possible for me to see your code? I asked the same question here: stackoverflow.com/questions/24065611/… and was wondering how to make sage understand the polygon=graph as an input P, given the vertex set V and the edge set E. If I just input 4 points, they may not determine the polygon uniquely, so we need to specify the edge set. How are you inputting the edge set and make sage understand your graph= my polygon? –  Mathmath Jun 5 at 22:16

9 Answers 9

up vote 19 down vote accepted

For drawing graph,the best is TIKZ but it does take some time to study,an alternate is graphviz


Rollbacked:

For drawing 2D geometry, try GeoGebra or Sketchpad (licensed).

For drawing 3D geometry, try Cabri 3d (licensed).

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I like this GeoGebra thing that you mentioned earlier. There's a free online version and a (possibly free) downloadable one too! –  f20k Dec 10 '10 at 20:41
    
@f20k:GeoGebra is good for 2D geometry in general.But for graph TIKZ or graphviz provide better options. –  Quixotic Dec 10 '10 at 21:03
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+1 for GraphViz. –  Tobin Fricke Dec 10 '10 at 23:55
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I cannot stress how much I love TikZ. –  Hans Parshall Dec 11 '10 at 0:36
    
Take a look at graphviz.org, it is a set of easy to use tools for drawing graphs. –  vonbrand Jan 21 '13 at 1:15

A friend an me coded this up quickly: http://dl.dropbox.com/u/4189520/GraphJS/graphjs.html

It does not have many features, but you will be able to draw graphs, and export the graph to TikZ-code.

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http://illuminations.nctm.org/ActivityDetail.aspx?ID=20 In the above link you can have a tool where you can draw graphs, check degree, find eulerian path, hamiltonian path.

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+1 for only answer that actually meets the question's criteria... –  BlueRaja - Danny Pflughoeft Nov 18 '13 at 17:19

yEd is a free cross-platform application that lets you interactively create nodes and edges via drag and drop, format them with different shapes and styles, and apply various graph layout algorithms to arrange the graph neatly.

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yEd doesn't seem to have smart arrows. –  Pacerier Jul 16 at 16:09

You can also use GasTeX.

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Creately offers a nice WYSIWYG interface for drawing graphs.

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Creately looks more like a flowchart kinda software. Dabbleboard is good but it isnt as neat as I would like. Thanks for your help –  f20k Dec 10 '10 at 20:44
    
No, both are not ideal. They do a good enough work, though, if you really refuse to use TikZ or Graphviz. –  Raphael Dec 11 '10 at 8:56

I created an open source graph drawing library too: https://github.com/anvaka/VivaGraphJS.

It requires some programming knowledge but I'd be really glad to help.

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Draw.io is really nice and user friendly.

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I think you're looking for something like:

Gliffy.com

Creately.com

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