class PostProcessingDatabase(object):
__shared_state = {}
def __init__(self):
self.__dict__ = self.__shared_state
def refresh(self):
self.real_time_database = RealTimeDatabase()
self._initialize_data_arrays()
def _initialize_data_arrays(self):
self.rpms, self.torques = self._create_sorted_rpms_and_torques()
self.powers = self._calculate_powers()
#TODO Not efficient...
def _create_sorted_rpms_and_torques(self):
#Pour prendre seulement les points ou la vitesse augmente.
self.max_index = self._find_end_of_data_acquisition_index(self.real_time_database)
velocities = self.real_time_database.get_velocities()[:self.max_index]
rpms = self._convert_velocities_to_rpms(velocities)[:self.max_index]
torques = self.real_time_database.get_torques()[:self.max_index]
sorted_index_array = self._calculate_sorted_index_array(rpms)
sorted_rpms = rpms[sorted_index_array]
sorted_torques = torques[sorted_index_array]
return sorted_rpms, sorted_torques
def _find_end_of_data_acquisition_index(self, real_time_database):
return np.argmax(real_time_database.get_velocities())
def _calculate_sorted_index_array(self, rpms):
return np.argsort(rpms)
def _convert_velocities_to_rpms(self, velocities):
return velocities * 60 / (2 * pi)
def _calculate_powers(self):
return self.real_time_database.get_velocities()[:self.max_index] * self.torques
def serialize_data_as_csv(self):
data_string = ""
data_string += "Rpms, Torques, Powers \n"
for i in range(len(self.rpms)):
data_string += (str(self.rpms[i]) + ",")
data_string += (str(self.torques[i]) + ",")
data_string += (str(self.powers[i]) + "\n")
return data_string
def get_rpms(self):
return self.rpms
def get_torques(self):
return self.torques
def get_powers(self):
return self.powers
