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"""Basic analysis module.
This program 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.
This program 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
this program. If not, see <http://www.gnu.org/licenses/>.
"""
__author__ = "Théo de la Hogue"
__credits__ = []
__copyright__ = "Copyright 2023, Ecole Nationale de l'Aviation Civile (ENAC)"
__license__ = "GPLv3"
from argaze import GazeFeatures, DataFeatures
import numpy
class ScanPathAnalyzer(GazeFeatures.ScanPathAnalyzer):
"""Basic scan path analysis."""
@DataFeatures.PipelineStepInit
def __init__(self, **kwargs):
# Init ScanPathAnalyzer class
super().__init__()
self.__path_duration = 0
self.__steps_number = 0
self.__step_fixation_durations_average = 0
@DataFeatures.PipelineStepMethod
def analyze(self, scan_path: GazeFeatures.ScanPath):
self.__path_duration = scan_path.duration
self.__steps_number = len(scan_path)
sum_fixation_durations = 0
for scan_step in scan_path:
sum_fixation_durations += scan_step.fixation_duration
self.__step_fixation_durations_average = sum_fixation_durations / self.__steps_number
@property
def path_duration(self) -> float:
"""Scan path duration."""
return self.__path_duration
@property
def steps_number(self) -> float:
"""Scan path steps number."""
return self.__steps_number
@property
def step_fixation_durations_average(self) -> float:
"""Scan path step fixation durations average."""
return self.__step_fixation_durations_average
class AOIScanPathAnalyzer(GazeFeatures.AOIScanPathAnalyzer):
"""Basic AOI scan path analysis."""
@DataFeatures.PipelineStepInit
def __init__(self, **kwargs):
# Init AOIScanPathAnalyzer class
super().__init__()
self.__path_duration = 0
self.__steps_number = 0
self.__step_fixation_durations_average = 0
self.__aoi_fixation_distribution = {}
@DataFeatures.PipelineStepMethod
def analyze(self, aoi_scan_path: GazeFeatures.ScanPath):
self.__path_duration = aoi_scan_path.duration
self.__steps_number = len(aoi_scan_path)
sum_fixation_durations = 0
self.__sum_aoi_fixation_durations = {}
for aoi_scan_step in aoi_scan_path:
sum_fixation_durations += aoi_scan_step.fixation_duration
try:
self.__sum_aoi_fixation_durations[aoi_scan_step.aoi] = self.__sum_aoi_fixation_durations[aoi_scan_step.aoi] + aoi_scan_step.fixation_duration
except KeyError:
self.__sum_aoi_fixation_durations[aoi_scan_step.aoi] = aoi_scan_step.fixation_duration
self.__step_fixation_durations_average = sum_fixation_durations / self.__steps_number
self.__aoi_fixation_distribution = {}
for aoi_name, sum_aoi_fixation_duration in self.__sum_aoi_fixation_durations.items():
self.__aoi_fixation_distribution[aoi_name] = sum_aoi_fixation_duration / sum_fixation_durations
@property
def path_duration(self) -> float:
"""AOI scan path duration."""
return self.__path_duration
@property
def steps_number(self) -> float:
"""AOI scan path steps number."""
return self.__steps_number
@property
def step_fixation_durations_average(self) -> float:
"""AOI scan path step fixation durations average."""
return self.__step_fixation_durations_average
@property
def aoi_fixation_distribution(self) -> dict:
"""percentage of time spent on each AOI."""
return self.__aoi_fixation_distribution
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