Besides the wiki, are there any plans to compile an API reference documentation?
I'm rather lost with a few things, particularly adding properties to the nodes on WebGL/Canvas. While I am one particular case, I think we could all agree having Documentation to read would be rather beneficial if not plain helpful.

Currently, edges must be interacted with through the arrow head or tail or through the sometimes very thin edge path itself which makes it a little hard to select them. This is analogous to how the URL attribute works:

For svg [...] output, [...]. For edges, the active areas are small circles where the edge contacts its head and tail nodes

This behavior is not documented :(

Complex data sholud be allowed to be exported. As XML or at least stringified JSON.

It should also be possible to import the result correctly.

It would be even better if user is allowed to pass a callback to transform data as one wishes.

problem recmap (<0.5.29):

bugfix

        if ((gammaM < 0 && gammaC > 0) || ( gammaM > 0 && gammaC < 0))
          delta = fabs(gammaC + gammaM) / C.size();
        else
          delta = fabs(gammaC - gammaM) / C.size();

testthat

R> set.s