gistfile1.ijs

NB. Listen to UDP stream (phone IMU eg.)
load'socket'
load'graph'

(;:'jsocket jdefs z') copath 'base'

sk =: 0 pick sdcheck sdsocket AF_INET_jdefs_,SOCK_DGRAM_jdefs_,0
sdcheck sdbind sk;AF_INET;'';5555

NB. sensor_number check socket
check =: 4 : 0 
if. sk e. 2 pick sdselect '' do.
  it =: 1 pick sdcheck sdrecvfrom (sk ; 1000 ; 0)
  NB. IMU+GPS stream format:
  NB. timestamp, 4-tuples: id x y z
  r=: _4 ]\ }. ". ;. _2 it,','
  G=: }. (x = {."1 r) # r
else.
  G=: 5 5 5
end.
G
)

3 check sk