Have nblast work with Labels in given neuronlist/dotprops objects

[alexanderbates]

Have a UseLabels option for nblast, which would work similarly to UseAlpha. Labels could be numeric (2) or character ("axon").

Some sample dotprops data from the hemibrain, two sets of cells types that should match to each other but not between, also with differing axon/dendrite locations: PD2a, PD2b1, AV1a1, LHCENT1, LHCENT2, LHCENT3:

Code used to fetch:

library(hemibrainr)
db = hemibrain_neurons()
chosen = subset(db, type%in%c("LHPD2a1","LHPD2b1_a","LHPD2b1_b","LHAV1a1","LHCENT1","LHCENT2","LHCENT3"))
dps = dotprops(chosen)
table(chosen[[1]]$d$Label)
table(dps[[1]]$labels)

Output:

> table(chosen[[1]]$d$Label)                                                           

    0     2     3     4     7 
10809  3186 41315   213   161 
> table(dps[[1]]$labels)

    0     2     3     4     7 
10809  3186 41315   213   161 

Where:
0 - non-computing(no 'flow'), possible erroneuous
1- soma
2- axon
3 - dendrite
4 - linker
7 - cell body fibre

dps.rda.zip

[jefferis]

@alexanderbates interesting idea although I'm not sure about the generality. @dokato and I have been talking recently about augmenting using topology and it's possible that one could fit this into a similar framework. The radius when this is available would actually be another example — would probably need to be smoothed around some local (geodesic) region.

[jefferis]

@dokato @schlegelp FYI