def initializeDPX():
"""
InitializeDPX performs a few DataPixx operations in order to ready
the presentation of images. It returns the datapixx object, which
must be maintained in order to continue using DataPixx.
"""
# Open datapixx.
dpixx = dpx.open()
# set videomode: Concatenate Red and Green into a 16 bit luminance
# channel.
dpixx.setVidMode(dpx.DPREG_VID_CTRL_MODE_M16)
# Demonstrate successful initialization.
dpixx.blink(dpx.BWHITE | dpx.BBLUE | dpx.BGREEN
| dpx.BYELLOW | dpx.BRED)
return dpixx
def __init__(self
,graphics='gpu'
,inputs='keyboard'
,photometer=None
,wdth=1024,hght=768,bg=0.0
,fs=False,db=True,scrn=0
,dfl=None,rfl=None,rhds=None
,lut=None):
"""
Initialize an HRL object.
Parameters
----------
graphics : The graphics device to use. Available: 'gpu','datapixx',
None. Default: 'gpu'
inputs : The input device to use. Available: 'keyboard', 'responsepixx',
None. Default: 'keyboard'
photometer : The graphics device to use. Available: 'optical', 'minolta', None.
Default: None
wdth : The desired width of the screen. Default: 1024
hght : The desired height of the screen. Default: 768
bg : The background luminance on a scale from 0 to 1. Default: 0.0
fs : Whether or not to run in Fullscreen.Default: False
db : Whether or not to use double buffering. Default: True
scrn: Which monitor to use. Numbered 0,1... Default: 0
dfl : The read location of the design matrix. Default: None
rfl : The write location of the result matrix. Default: None
rhds : A list of the string names of the headers for the Result
Matrix. The string names should be without spaces, e.g.
'InputLuminance'. If rfl != None, rhds must be provided.
Default: None
lut : The lookup table. Default: None
Returns
-------
hrl instance. Comes with a number of methods required to run an
experiment.
"""
### Load Config ###
#data_files=[(os.path.expanduser('~/.config'), ['misc/hrlrc'])]
#cfg = cp.RawConfigParser()
#cfg.read([os.path.expanduser('~/.config/hrlrc')])
os.environ['DISPLAY'] = ':0.' + str(scrn)
## Load Datapixx ##
if (graphics == 'datapixx') or (inputs == 'responsepixx'):
import datapixx as dpx
# Open datapixx.
self.datapixx = dpx.open()
# set videomode: Concatenate Red and Green into a 16 bit luminance
# channel.
self.datapixx.setVidMode(dpx.DPREG_VID_CTRL_MODE_M16)
# Demonstrate successful initialization.
self.datapixx.blink(dpx.BWHITE | dpx.BBLUE | dpx.BGREEN
| dpx.BYELLOW | dpx.BRED)
else:
self.datapixx = None
## Load Graphics Device ##
if graphics == 'gpu':
from graphics.gpu import GPU
self.graphics = GPU(wdth,hght,bg,fs,db,lut)
elif graphics == 'datapixx':
from graphics.datapixx import DATAPixx
self.graphics = DATAPixx(wdth,hght,bg,fs,db,lut)
else:
self.graphics = None
## Load Input Device ##
if inputs == 'keyboard':
from inputs.keyboard import Keyboard
self.inputs = Keyboard()
elif inputs == 'responsepixx':
from inputs.responsepixx import RESPONSEPixx
self.inputs = RESPONSEPixx(self.datapixx)
else:
self.inputs = None
## Load Photometer ##
if photometer == 'optical':
from photometer.optical import OptiCAL
self.photometer = OptiCAL('/dev/ttyUSB0')
if photometer == 'minolta':
from photometer.minolta import Minolta
self.photometer = Minolta('/dev/ttyUSB0')
else:
self.photometer = None
## Design and Result matrices ##
self._dfl = None
if dfl != None:
self._dfl = open(dfl,'rb')
self.designs = csv.DictReader(self._dfl,delimiter=' ',skipinitialspace=True)
self._rfl = None
if rfl != None:
self._rfl = open(rfl,'wb')
self._rwtr = csv.DictWriter(self._rfl,rhds,delimiter=' ')
self.results = {}
#self._rwtr.writeheader() - requires Python 2.7
self._rfl.write(' '.join(rhds) + '\r\n')
# -*- coding: utf-8 -*- """ Example script to test connection with DATAPixx @author: Guillermo Aguilar, Dec 2017 """ import time import sys sys.path.insert(0, "../build/dist-packages") import datapixx as dpx # Open datapixx. datapixx = dpx.open() # set videomode: Concatenate Red and Green into a 16 bit luminance # channel. datapixx.setVidMode(dpx.DPREG_VID_CTRL_MODE_M16) # Demonstrate successful initialization with button blinks datapixx.blink(dpx.BWHITE) datapixx.blink(dpx.BWHITE | dpx.BBLUE | dpx.BGREEN | dpx.BYELLOW | dpx.BRED) datapixx.blink(dpx.BBLUE | dpx.BGREEN | dpx.BYELLOW | dpx.BRED) # closes datapixx.close()