def generateGazeFrames(eyetrackList, dirname="./gaze_frames/", granularity=250):
# TODO: Check for a final "/" in the dirname, and add if necessary
# TODO: Enforce "/gaze_frames/" directory
if (not os.path.isdir(dirname)): os.mkdir(dirname)
# generate gaze frames
maxTime = 0
time = 0
i = 0
contentID = eyetrackList[0]["ContentID"]
for eyetrack in eyetrackList:
if maxTime < eyetrack["Time"]: maxTime = eyetrack["Time"]
while time <= maxTime:
eyetrackSegment = Task1.refineTimeframe(eyetrackList, (time, time + granularity))
# print(time)
# pprint(eyetrackSegment)
if len(eyetrackSegment) > 0:
path = dirname + contentID + "-" + str(i) + ".png"
Task1.makeMap(eyetrackSegment, path)
elif time == 0:
# Create a blank image
img = Image.new("RGBA", (eyetrackList[0]["OriginWidth"], eyetrackList[0]["OriginHeight"]), (0, 0, 0, 0))
img.save(dirname + contentID + "-" + str(i) + ".png", "PNG")
else:
# use the last image.
print "Skipping segment", time, "-", time + granularity
shutil.copyfile(dirname + contentID + "-" + str(i - 1) + ".png", dirname + contentID + "-" + str(i) + ".png")
time += granularity
i += 1
def generateGazeFrames(eyetrackList,
dirname="./gaze_frames/",
granularity=250):
# TODO: Check for a final "/" in the dirname, and add if necessary
# TODO: Enforce "/gaze_frames/" directory
if (not os.path.isdir(dirname)): os.mkdir(dirname)
# generate gaze frames
maxTime = 0
time = 0
i = 0
contentID = eyetrackList[0]["ContentID"]
for eyetrack in eyetrackList:
if maxTime < eyetrack["Time"]: maxTime = eyetrack["Time"]
while time <= maxTime:
eyetrackSegment = Task1.refineTimeframe(eyetrackList,
(time, time + granularity))
# print(time)
# pprint(eyetrackSegment)
if len(eyetrackSegment) > 0:
path = dirname + contentID + "-" + str(i) + ".png"
Task1.makeMap(eyetrackSegment, path)
elif time == 0:
# Create a blank image
img = Image.new("RGBA", (eyetrackList[0]["OriginWidth"],
eyetrackList[0]["OriginHeight"]),
(0, 0, 0, 0))
img.save(dirname + contentID + "-" + str(i) + ".png", "PNG")
else:
# use the last image.
print "Skipping segment", time, "-", time + granularity
shutil.copyfile(dirname + contentID + "-" + str(i - 1) + ".png",
dirname + contentID + "-" + str(i) + ".png")
time += granularity
i += 1
