Filter service API.
initFilter(api)
api
: reverse linkage to topoForce modulenode()
: reference to D3 node selectionlink()
: reference to D3 link selectionclickAction()
selected()
all
, pkt
, or opt
)inLayer(d, layer)
d
: model data (link, host, device)layer
: layer id (e.g. pkt
)