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How to use _ensure_valid method in autotest
Best Python code snippet using autotest_python
zwo_camera.py
Source:zwo_camera.py 
1from python_zwoasi import zwoasi2from PyQt5.QtCore import QThread, QMutex, QMutexLocker, pyqtSignal, pyqtSlot, qDebug, QObject, QTimer, QSettings3import numpy as np4from camera import Camera5from camera_settings_widget import CameraSettingsWidget6def clamp(x, minn, maxx):7 return min(max(x, minn), maxx)8class ZwoCamera(Camera):9 class CaptureThread(QThread):10 ndarray_available = pyqtSignal(np.ndarray)11 def __init__(self, camera: zwoasi.Camera):12 super().__init__()13 self._camera = camera14 self._mutex = QMutex()15 self._abort = False16 def stop(self):17 with QMutexLocker(self._mutex):18 self._abort = True19 def run(self):20 self._abort = False21 self._camera.start_video_capture()22 while True:23 with QMutexLocker(self._mutex):24 if self._abort:25 self._camera.stop_video_capture()26 break27 data = self._camera.get_video_data()28 whbi = self._camera.get_roi_format()29 shape = [whbi[1], whbi[0]]30 if whbi[3] == zwoasi.ASI_IMG_RAW8 or whbi[3] == zwoasi.ASI_IMG_Y8:31 img = np.frombuffer(data, dtype=np.uint8)32 elif whbi[3] == zwoasi.ASI_IMG_RAW16:33 img = np.frombuffer(data, dtype=np.uint16)34 elif whbi[3] == zwoasi.ASI_IMG_RGB24:35 img = np.frombuffer(data, dtype=np.uint8)36 shape.append(3)37 else:38 raise ValueError('Unsupported image type')39 img = img.reshape(shape)40 img = np.rot90(img, 2)41 self.ndarray_available.emit(img)42 class AutoSettingsObject(QObject):43 gain_changed = pyqtSignal(float)44 exposure_time_changed = pyqtSignal(float)45 def __init__(self, **kwargs):46 super().__init__(**kwargs)47 self._saturation = 048 self._enabled = False49 self._piUi = 050 self._last_error = 051 self._gain = None52 self._exposure_time = None53 self._min_gain = None54 self._max_gain = None55 self._min_exposure_time = None56 self._max_exposure_time = None57 self._setpoint = 85.58 self.Kp = 0.559 self.Kd = 1060 self.Ki = 0.361 self._interval = 20062 self._timer = QTimer()63 self._timer.timeout.connect(self._run)64 @pyqtSlot(int)65 def set_saturation(self, sat):66 self._saturation = sat67 @pyqtSlot(float)68 def set_exposure_time(self, exposure):69 self._exposure_time = exposure70 @pyqtSlot(float)71 def set_gain(self, gain):72 self._gain = gain73 def set_exposure_range(self, rng):74 self._min_exposure_time, self._max_exposure_time = rng75 def set_gain_range(self, rng):76 self._min_gain, self._max_gain = rng77 def start(self):78 self._timer.start(self._interval)79 def stop(self):80 self._timer.stop()81 def _run(self):82 error = self._saturation - self._setpoint83 ui = self._piUi + error * self._interval / 1000 * self.Ki84 self._piUi = ui85 ud = self._last_error / self._interval * self.Kd86 output = - self.Kp * (error + ui + ud)87 self._last_error = error88 previous_gain = self._gain89 previous_exposure_time = self._exposure_time90 if (error > 0 and self._min_gain < self._gain) or (error < 0 and self._gain < self._max_gain):91 # adjust gain92 db_increase = output / 593 self._gain = clamp(self._gain + db_increase, self._min_gain, self._max_gain)94 elif (error > 0 and self._min_exposure_time < self._exposure_time) or \95 (error < 0 and self._exposure_time < self._max_exposure_time):96 self._exposure_time = clamp(self._exposure_time + output, self._min_exposure_time,97 self._max_exposure_time)98 else:99 # stuck at the edge...100 self._piUi = 0101 if self._exposure_time != previous_exposure_time:102 self.exposure_time_changed.emit(self._exposure_time)103 if self._gain != previous_gain:104 self.gain_changed.emit(self._gain)105 # to convert the values from ZWO into nice units:106 _gain_factor = 10107 _exposure_factor = 1000108 exposure_time_changed = pyqtSignal(float)109 gain_changed = pyqtSignal(float)110 saturation_changed = pyqtSignal(int)111 def __init__(self, parent=None, cam_number=0):112 super().__init__()113 self._camera = None114 self.maxval = 2**16115 self._last_saturations = []116 self._saturation = 0117 self._camera = zwoasi.Camera(cam_number)118 self._active = True119 self._manualMode = True120 self._controls = self._camera.get_controls()121 self._info = self._camera.get_camera_property()122 self._camera.set_image_type(zwoasi.ASI_IMG_RAW16)123 self._camera.set_control_value(zwoasi.ASI_GAIN, 20)124 self._camera.set_control_value(zwoasi.ASI_EXPOSURE, 3000)125 self._camera.set_control_value(zwoasi.ASI_FLIP, 0)126 self._camera.disable_dark_subtract()127 self._camera.set_control_value(zwoasi.ASI_COOLER_ON, 1)128 self._camera.set_control_value(zwoasi.ASI_TARGET_TEMP, self._controls["TargetTemp"]["MinValue"])129 self.capture_thread = self.CaptureThread(self._camera)130 self.capture_thread.ndarray_available.connect(self.ndarray_available)131 self.ndarray_available.connect(self.calculate_saturation)132 self.auto_settings_thread = self.AutoSettingsObject()133 self.auto_settings_thread.set_gain(self.get_gain())134 self.auto_settings_thread.set_exposure_time(self.get_exposure())135 self.auto_settings_thread.set_gain_range(self.get_gain_range())136 self.auto_settings_thread.set_exposure_range(self.get_exposure_range())137 self.gain_changed.connect(self.auto_settings_thread.set_gain)138 self.exposure_time_changed.connect(self.auto_settings_thread.set_exposure_time)139 self.saturation_changed.connect(self.auto_settings_thread.set_saturation)140 self.auto_settings_thread.gain_changed.connect(self.set_gain)141 self.auto_settings_thread.exposure_time_changed.connect(self.set_exposure)142 def __del__(self):143 self.capture_thread.stop()144 self.capture_thread.wait()145 @pyqtSlot()146 def start(self):147 self.capture_thread.start()148 @pyqtSlot()149 def stop(self):150 self.capture_thread.stop()151 @pyqtSlot(np.ndarray)152 def calculate_saturation(self, array):153 sat = array.max() / self.maxval * 100154 self._last_saturations.append(sat)155 if len(self._last_saturations) > 1:156 self._last_saturations.pop(0)157 weight = np.arange(1, len(self._last_saturations) + 1)158 self._saturation = np.sum(weight * np.array(self._last_saturations)) / np.sum(weight)159 self.saturation_changed.emit(self._saturation)160 @pyqtSlot()161 def get_controls(self):162 controls = CameraSettingsWidget()163 min_exp, max_exp = self.get_exposure_range()164 max_exp = min(max_exp, 2000)165 controls.set_exposure_range(min_exp, max_exp)166 controls.set_gain_range(*self.get_gain_range())167 controls.set_gain(self.get_gain())168 controls.set_exposure(self.get_exposure())169 controls.exposure_changed.connect(self.set_exposure)170 controls.gain_changed.connect(self.set_gain)171 controls.auto_changed.connect(self.enable_auto)172 self.exposure_time_changed.connect(controls.set_exposure)173 self.gain_changed.connect(controls.set_gain)174 return controls175 @pyqtSlot()176 def has_controls(self):177 return True178 @pyqtSlot(bool)179 def enable_auto(self, auto):180 if auto:181 self.auto_settings_thread.set_gain = self.get_gain()182 self.auto_settings_thread.exposure_time = self.get_exposure()183 self.auto_settings_thread.start()184 else:185 self.auto_settings_thread.stop()186 @staticmethod187 def get_number_cameras():188 return zwoasi.get_num_cameras()189 @staticmethod190 def get_available_cameras():191 return list(range(ZwoCamera.get_number_cameras()))192 @staticmethod193 def init_library(path):194 zwoasi.init(path)195 def _clear_interface(self):196 pass197 # if self._control.DeviceValid:198 # self._control.LiveStop()199 # self._control.DeviceFrameFilters.Clear()200 # self._control.Device = ""201 def _valid(self):202 return self._active203 @Camera._ensure_valid204 def get_exposure(self):205 return self._camera.get_control_value(zwoasi.ASI_EXPOSURE)[0] / self._exposure_factor206 @Camera._ensure_valid207 def get_exposure_range(self):208 rng = (self._controls["Exposure"]["MinValue"], self._controls["Exposure"]["MaxValue"])209 scaled_rng = [bound / self._exposure_factor for bound in rng]210 return scaled_rng211 @Camera._ensure_valid212 def is_auto_exposure(self):213 return self._camera.get_control_value(zwoasi.ASI_EXPOSURE)[1]214 @Camera._ensure_valid215 def set_auto_exposure(self, auto):216 current_exposure = self._camera.get_control_value(zwoasi.ASI_EXPOSURE)[0]217 self._camera.set_control_value(zwoasi.ASI_EXPOSURE, current_exposure, auto=auto)218 @Camera._ensure_valid219 def set_exposure(self, exposure):220 true_exposure = int(exposure * self._exposure_factor)221 rng = (self._controls["Exposure"]["MinValue"], self._controls["Exposure"]["MaxValue"])222 if not rng[0] <= true_exposure <= rng[1]:223 raise ValueError("Exposure parameter {} is outside of allowed range {}".format(true_exposure, rng))224 self._camera.set_control_value(zwoasi.ASI_EXPOSURE, true_exposure)225 self.exposure_time_changed.emit(exposure)226 @Camera._ensure_valid227 def get_gain(self):228 return self._camera.get_control_value(zwoasi.ASI_GAIN)[0] / self._gain_factor229 @Camera._ensure_valid230 def get_gain_range(self):231 rng = (self._controls["Gain"]["MinValue"], self._controls["Gain"]["MaxValue"])232 scaled_rng = [bound / self._gain_factor for bound in rng]233 return scaled_rng234 @Camera._ensure_valid235 def is_auto_gain(self):236 return self._camera.get_control_value(zwoasi.ASI_GAIN)[1]237 @Camera._ensure_valid238 def set_auto_gain(self, auto):239 current_gain = self._camera.get_control_value(zwoasi.ASI_GAIN)[0]240 self._camera.set_control_value(zwoasi.ASI_GAIN, current_gain, auto=auto)241 @Camera._ensure_valid242 def set_gain(self, gain):243 true_gain = int(gain * self._gain_factor)244 rng = (self._controls["Gain"]["MinValue"], self._controls["Gain"]["MaxValue"])245 if not rng[0] <= true_gain <= rng[1]:246 raise ValueError("Gain parameter {} is outside of allowed range {}".format(true_gain, rng))247 self._camera.set_control_value(zwoasi.ASI_GAIN, true_gain)248 self.gain_changed.emit(gain)249 def get_pid(self):250 p = self.auto_settings_thread.Kp251 i = self.auto_settings_thread.Ki252 d = self.auto_settings_thread.Kd253 return p, i, d254 def set_pid(self, p, i, d):255 self.auto_settings_thread.Kp = p256 self.auto_settings_thread.Ki = i257 self.auto_settings_thread.Kd = d258 self.save_pid_values(p, i, d)259 print("pid:", p, i, i)260 def load_pid_values(self):261 settings = QSettings("Fringes", "Fringes")262 settings.beginGroup("ZwoCamera")263 if settings.value("P") is not None:264 p = settings.value("P")265 i = settings.value("I")266 d = settings.value("D")267 else:268 p, i, d = self.read_pid_settings("ZwoCamera")269 settings.endGroup("ZwoCamera")270 return p, i, d271 def save_pid_values(self, p, i, d):272 settings = QSettings("Fringes", "Fringes")273 settings.beginGroup("ZwoCamera")274 settings.setValue("P", p)275 settings.setValue("I", i)276 settings.setValue("D", d)...
precise_ephemeris.py
Source:precise_ephemeris.py
...24 self._validity_interval = _EmptyInterval()25 self._loaded_interval = _EmptyInterval()26 self._week = None27 self._positions = {}28 def _ensure_valid(self, week, time):29 """30 If the time isn't in validity interval,31 then download and parse a new sp3 file.32 """33 if time in self._validity_interval and self._week == week:34 return35 rounded_time_2 = (time // (2 * 3600)) * (2 * 3600)36 rounded_time_6 = (time // (6 * 3600)) * (6 * 3600)37 38 file_name = self._get_file_name(week, time)39 remote_file = urlparse.urljoin(self._server, file_name)40 if time not in self._loaded_interval:41 logging.info("Downloading file %s", remote_file)42 f = urllib2.urlopen(remote_file)43 with _decompress_Z_file(f) as f2:44 self._sp3 = Sp3(f2)45 self._loaded_interval = _Interval(rounded_time_6, rounded_time_6 + 6 * 3600)46 logging.info("Recalculating polynomials")47 # find start index for the new validity interval in sp3 file48 start = 049 for i, epoch in enumerate(self._sp3.values):50 if epoch.time >= rounded_time_2:51 start = i52 break53 epochs = self._sp3.values[start - 8: start + 17]54 for sv in self._sp3.svs:55 if sv[0] != 'G':56 continue # only gps57 prn = int(sv[1:])58 times = numpy.fromiter(59 (x.time for x in epochs),60 dtype=numpy.float)61 positions = []62 for i in range(4):63 values = numpy.fromiter(64 (x[sv][i] for x in epochs if sv in x),65 dtype=numpy.float)66 assert len(times) == len(values) == 2567 if i == 4:68 values = values * 1e-669 else:70 values = values * 1e371 poly = numpy.polynomial.polynomial.Polynomial.fit(times, values, 12)72 #poly = numpy.polyfit(times, values, 12) * multiplier73 positions.append(poly)74 self._positions[prn] = positions75 self._validity_interval = _Interval(rounded_time_2, rounded_time_2 + 2 * 3600)76 self._week = week77 def _get_file_name(self, week, time):78 d, rest = divmod(time, 24 * 3600)79 h = rest // 360080 h = (h // 6) * 681 return "{w:04}/igu{w:04}{d:01}_{h:02}.sp3.Z".format(82 w=int(week), d=int(d), h=int(h))83 def sv_pos(self, prn, week, time):84 self._ensure_valid(week, time)85 return numpy.matrix([[86 self._positions[prn][i](time) for i in range(3)]])87 def sv_clock_offset(self, prn, week, time):88 self._ensure_valid(week, time)89 return self._positions[prn][3](time)90 def sv_velocity(prn, week, time):91 self._ensure_valid(week, time)92 raise NotImplementedError()93 #return numpy.matrix([[94 # numpy.polyval(self._positions[prn][i], time) for i in range(3)]])95 def sv_clock_drift(self, prn, week, time):96 self._ensure_valid(week, time)97 raise NotImplementedError()98 def observed_message_types(self):99 """Return a set of sirf message classes that this observer is interested in."""100 return [sirf_messages.GeodeticNavigationData]101 def __call__(self, message):102 """Notification that a message was received.103 Only the messages specified in observed_message_types() are received."""104 self._current_week = message.extended_gps_week105class _EmptyInterval:106 def __contains__(self, x):107 return False108 def __str__(self):109 return "Epty interval"110class _Interval:...
verify_credentials.py
Source:verify_credentials.py
...15 self._verification_model = verification_model16 self._user_repository = user_repository17 self._ensure_valid = validator18 def execute(self, request):19 self._ensure_valid(request)20 user = self._user_repository.find_one(request.username)...
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