Directed Graphs / Edge Direction?

[bentwonk]

Is it possible to visible display the direction of an edge (eg with an arrow, or a colour gradient)?

I see edge direction as being pretty important in a lot of graphs.

D3.js utilizes the svg path and marker to do this, I read the sigma plotter code but could only see support for lines and curves, nothing directional, did I miss something?

I think directed edges would be a very useful addition to a great (and impressively fast) lib, in my use case it would make it perfect :-)

[lawrencegs]

Would love to have this as well :)

[andreineculau]

+1
What I ended up doing temporarily is: on node hover, draw the in/out edges with different colors

[bentwonk]

Andreinecalau, ha ha, I did exactly the same, but it's not as intuitive as an arrow :-)

[qualutions]

Thanks for the idea but I too would love a directional arrow

[bentwonk]

any news on this? I was asked again today 'if we could use arrows instead'

[jmorenoamor]

I'm also very interested in this feature to be added

[kirkstrobeck]

+1

[yaph]

@andreineculau and @bentwonk what colors did you use to indicate directions?

[straux]

Actually sigma already handles directed edges: if you display edges as curves, a clockwise curve is an outgoing edge and a counterclockwise curve is an ingoing edge.
Indeed, an alternative display with arrows could be more explicit.

[bentwonk]

I do display the edges as curves, no user has spotted the clockwise/counter clockwise indicating direction (despite the help text mentioning it), they would instantly recognise an arrow.

[kirkstrobeck]

Here is a great example of the desired effect

[klebba]

+1 -- can this be achieved with a plugin? No new commits for 11 months, is anyone maintaining this project?

[Azinp]

No news about edge direction ?

[JohnMulligan]

I think I've managed to make this work; in my repository.

[jacomyal]

I just merged this pull request #101 (from @hansifer), that makes possible to draw edges as arrows.

[mrocklin]

Is there a minimal example of this somewhere? See related stack overflow question

[mangeshkaslikar]

Is there somewhere a small example on how to do these...? I exported my graph from gephi using the sigma JS template , while gephi in its preview section shows the arrows, when i see the output of the exported Sigma JS , no arrows show up. What property needs to be changed in order to see the arrows .. and in which file ?