GazeTK

/*

 * Copyright 2015 Thies Pfeiffer and Dimitri Heil

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

 * 

 * This file is part of GazeTk.

 * 

 * 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/>.

 */

#

# 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()

DeviceServer_REDm

=================

[Download](https://opensource.cit-ec.de/projects/gazetk/repository/gazetk)

License

-------

DeviceServer_REDm is free and open source software distributed under the terms of the [GNU General Public License](http://www.gnu.org/licenses/).

Description

-----------

Welcome to DeviceServer_REDm!

This python-based server connects your SMI REDm eye tracking device with the GazeTk DesktopConnector. 

Requirements

------------

- Python 2.7 32bit

- Python module websocket

Installation

------------

1. Install Python 2.7 32bit

2. Install websocket-client by running the following script from PYTHONDIR/Scripts:

$ pip install websocket-client

Starting DeviceServer_REDm

--------------------------

1. Start the REDm application provided with the device.

2. Make sure you have the iViewXAPI.dlls on your PATH, they come with the REDm installation package.

3. Start the DeviceServer_REDm:

$ python DeviceServer_REDm.py

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

#

# (c) Copyright 1997-2013, SensoMotoric Instruments GmbH

# 

# Permission  is  hereby granted,  free  of  charge,  to any  person  or

# organization  obtaining  a  copy  of  the  software  and  accompanying

# documentation  covered  by  this  license  (the  "Software")  to  use,

# reproduce,  display, distribute, execute,  and transmit  the Software,

# and  to  prepare derivative  works  of  the  Software, and  to  permit

# third-parties to whom the Software  is furnished to do so, all subject

# to the following:

# 

# The  copyright notices  in  the Software  and  this entire  statement,

# including the above license  grant, this restriction and the following

# disclaimer, must be  included in all copies of  the Software, in whole

# or  in part, and  all derivative  works of  the Software,  unless such

# copies   or   derivative   works   are   solely   in   the   form   of

# machine-executable  object   code  generated  by   a  source  language

# processor.

# 

# THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,

# EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF

# MERCHANTABILITY,   FITNESS  FOR  A   PARTICULAR  PURPOSE,   TITLE  AND

# NON-INFRINGEMENT. IN  NO EVENT SHALL  THE COPYRIGHT HOLDERS  OR ANYONE

# DISTRIBUTING  THE  SOFTWARE  BE   LIABLE  FOR  ANY  DAMAGES  OR  OTHER

# LIABILITY, WHETHER  IN CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT

# OF OR IN CONNECTION WITH THE  SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

#

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

# iViewXAPI.py

#

# Demonstrates features of iView API 

# Defines structures 

# Loads in iViewXAPI.dll

# This script shows how to set up an experiment with Python 2.7.1 (with ctypes Library) 

from ctypes import *

#===========================

#		Struct Definition

#===========================

class CSystem(Structure):

	_fields_ = [("samplerate", c_int),

	("iV_MajorVersion", c_int),

	("iV_MinorVersion", c_int),

	("iV_Buildnumber", c_int),

	("API_MajorVersion", c_int),

	("API_MinorVersion", c_int),

	("API_Buildnumber", c_int),

	("iV_ETDevice", c_int)]

class CCalibration(Structure):

	_fields_ = [("method", c_int),

	("visualization", c_int),

	("displayDevice", c_int),

	("speed", c_int),

	("autoAccept", c_int),

	("foregroundBrightness", c_int),

	("backgroundBrightness", c_int),

	("targetShape", c_int),

	("targetSize", c_int),

	("targetFilename", c_char * 256)]

class CEye(Structure):

	_fields_ = [("gazeX", c_double),

	("gazeY", c_double),

	("diam", c_double),

	("eyePositionX", c_double),

	("eyePositionY", c_double),

	("eyePositionZ", c_double)]

class CSample(Structure):

	_fields_ = [("timestamp", c_longlong),

	("leftEye", CEye),

	("rightEye", CEye),

	("planeNumber", c_int)]

class CEvent(Structure):

	_fields_ = [("eventType", c_char),

	("eye", c_char),

	("startTime", c_longlong),

	("endTime", c_longlong),

	("duration", c_longlong),

	("positionX", c_double),

	("positionY", c_double)]

class CAccuracy(Structure):

	_fields_ = [("deviationLX",c_double),

				("deviationLY",c_double),				

				("deviationRX",c_double),

				("deviationRY",c_double)]

#===========================

#		Loading iViewX.dll 

#===========================

iViewXAPI = windll.LoadLibrary("iViewXAPI.dll")

#===========================

#		Initializing Structs

#===========================

systemData = CSystem(0, 0, 0, 0, 0, 0, 0, 0)

calibrationData = CCalibration(5, 1, 0, 0, 1, 20, 239, 1, 15, b"")

leftEye = CEye(0,0,0)

rightEye = CEye(0,0,0)

sampleData = CSample(0,leftEye,rightEye,0)

eventData = CEvent('F', 'L', 0, 0, 0, 0, 0)

accuracyData = CAccuracy(0,0,0,0)

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

#

# (c) Copyright 1997-2013, SensoMotoric Instruments GmbH

# 

# Permission  is  hereby granted,  free  of  charge,  to any  person  or

# organization  obtaining  a  copy  of  the  software  and  accompanying

# documentation  covered  by  this  license  (the  "Software")  to  use,

# reproduce,  display, distribute, execute,  and transmit  the Software,

# and  to  prepare derivative  works  of  the  Software, and  to  permit

# third-parties to whom the Software  is furnished to do so, all subject

# to the following:

# 

# The  copyright notices  in  the Software  and  this entire  statement,

# including the above license  grant, this restriction and the following

# disclaimer, must be  included in all copies of  the Software, in whole

# or  in part, and  all derivative  works of  the Software,  unless such

# copies   or   derivative   works   are   solely   in   the   form   of

# machine-executable  object   code  generated  by   a  source  language

# processor.

# 

# THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,

# EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF

# MERCHANTABILITY,   FITNESS  FOR  A   PARTICULAR  PURPOSE,   TITLE  AND

# NON-INFRINGEMENT. IN  NO EVENT SHALL  THE COPYRIGHT HOLDERS  OR ANYONE

# DISTRIBUTING  THE  SOFTWARE  BE   LIABLE  FOR  ANY  DAMAGES  OR  OTHER

# LIABILITY, WHETHER  IN CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT

# OF OR IN CONNECTION WITH THE  SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

#

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

def HandleError(ret):

    if ret == 104:

         print "Could not establish connection. Check if Eye Tracker is running."

    elif ret == 105:

         print "Could not establish connection. Check the communication Ports."

    elif ret == 123:

         print "Could not establish connection. Another Process is blocking the communication Ports."

    elif ret == 201:

         print "Could not establish connection. Check if Eye Tracker is installed and running."

    else:

        print "Return Code is " + ret + ". Refer to the iView X SDK Manual for its meaning."

	return

python DeviceServer_REDm.py

pause