GazeTK

#

# DeviceServer_REDm.py

# 

# This file is part of GazeTk.

#

# Copyright 2015 Thies Pfeiffer and Dimitri Heil

# GazeTk is distributed under the terms of the GNU General Public License

# 

# GazeTk is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# 

# GazeTk is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

# 

# You should have received a copy of the GNU General Public License

# along with GazeTk. If not, see <http://www.gnu.org/licenses/>.

#

#!/usr/bin/env python

# -*- coding: utf-8 -*-

from iViewXAPI import  *            #iViewX library

from iViewXAPIReturnCodes import * 

from websocket import create_connection

ws = create_connection("ws://127.0.0.1:6777")

print "sending: Hi, this is the python server"

ws.send("TYPE:smi");

ws.send("Hi, this is the python server")

print "sent."

# ---------------------------------------------

#---- connect to iViewX

# ---------------------------------------------

res = iViewXAPI.iV_SetLogger(c_int(1), c_char_p("iViewXSDK_Python_SimpleExperiment.txt"))

res = iViewXAPI.iV_Connect(c_char_p('127.0.0.1'), c_int(4444), c_char_p('127.0.0.1'), c_int(5555))

if res != 1:

    HandleError(res)

    exit(0)

res = iViewXAPI.iV_GetSystemInfo(byref(systemData))

print "iV_GetSystemInfo: " + str(res)

print "Samplerate: " + str(systemData.samplerate)

print "iViewX Version: " + str(systemData.iV_MajorVersion) + "." + str(systemData.iV_MinorVersion) + "." + str(systemData.iV_Buildnumber)

print "iViewX API Version: " + str(systemData.API_MajorVersion) + "." + str(systemData.API_MinorVersion) + "." + str(systemData.API_Buildnumber)

# ---------------------------------------------

#---- configure and start calibration

# ---------------------------------------------

calibrationData = CCalibration(5, 1, 0, 0, 1, 250, 220, 2, 20, b"")

res = iViewXAPI.iV_SetupCalibration(byref(calibrationData))

print "iV_SetupCalibration " + str(res)

res = iViewXAPI.iV_Calibrate()

print "iV_Calibrate " + str(res)

res = iViewXAPI.iV_Validate()

print "iV_Validate " + str(res)

res = iViewXAPI.iV_GetAccuracy(byref(accuracyData), 0)

print "iV_GetAccuracy " + str(res)

print "deviationXLeft " + str(accuracyData.deviationLX) + " deviationYLeft " + str(accuracyData.deviationLY)

print "deviationXRight " + str(accuracyData.deviationRX) + " deviationYRight " + str(accuracyData.deviationRY)

# ---------------------------------------------

#---- define the callback functions

# ---------------------------------------------

def SampleCallback(sample):

    print " Gaze Data - Timestamp " + str(sample.timestamp) + " Gaze " + str(sample.leftEye.gazeX) + " " + str(sample.leftEye.gazeY) + "\n"

    print "{\"x\":" + str(sample.leftEye.gazeX) + ",\"y\":" + str(sample.leftEye.gazeY) + "}"

    ws.send("{\"x\":"+str(sample.leftEye.gazeX)+",\"y\":"+str(sample.leftEye.gazeY)+"}")

    #ws.send("hi..")

    return 0

def EventCallback(event):

    print " Event: " + str(event.positionX) + " " + str(event.positionY) + "\n"

    return 0

CMPFUNC = WINFUNCTYPE(c_int, CSample)

smp_func = CMPFUNC(SampleCallback)

sampleCB = False

CMPFUNC = WINFUNCTYPE(c_int, CEvent)

event_func = CMPFUNC(EventCallback)

eventCB = False

# ---------------------------------------------

#---- start DataStreaming

# ---------------------------------------------

command = 0

while (command != 'q'):

    command = raw_input("waiting for input - press 's' and 'Enter' to start DataStreaming \n\

                  - press 'q' and 'Enter' to quit DataStreaming \n")

    if (command == 's'):

                res = iViewXAPI.iV_SetSampleCallback(smp_func)

                sampleCB = True

                res = iViewXAPI.iV_SetEventCallback(event_func)

                eventCB = True

# ---------------------------------------------

#---- stop recording and disconnect from iViewX

# ---------------------------------------------

res = iViewXAPI.iV_Disconnect()

ws.close()