I would like to make simple network diagram using the ExtJS chart. I can plot the nodes using a scatter plot type.
However, I am wondering what to do about the connections between nodes. It seems like I might be able to do that with a whole bunch of line series. However that seems like it will be quite inelegant using the store/series paradigm of ExtJS charting (it seems like I would have to create many series each containing a large number of null values).
Is there some way I can directly call line drawing operations on an ExtJS chart? Something like an onRender method where I can say drawline(x1,y1,x2,y2) repeatedly to connect all my nodes as I see fit?