Tags: realtime development

FieldTrip buffer Python interface

Client side pure Python implementation

The directory ‘‘fieldtrip/realtime/src/buffer/python’’ contains a single-file Python module called ‘‘FieldTrip.py’’. This provides classes that wrap FieldTrip-style header structures, events, and client connections to a server, including functions for the various requests to read and write samples and events. The module depends on Numpy for representing data matrices and type and value fields of events.

The following Python code example demonstrates how to use the interfac

:::python
import sys
import FieldTrip

ftc = FieldTrip.Client()		
ftc.connect('localhost', 1972)    # might throw IOError
H = ftc.getHeader()
if H is Non
    print 'Failed to retrieve header!'
    sys.exit(1)

print H
print H.labels

if H.nSamples > 
    print 'Trying to read last sample...'
    index = H.nSamples - 1
    D = ftc.getData([index, index])
    print D

if H.nEvents > 
    print 'Trying to read (all) events...'
    E = ftc.getEvents()
    for e in 
        print e
				
ftc.disconnect()