How to use start_record method in ATX

Best Python code snippet using ATX

power_data_io.py

Source:power_data_io.py

1import time2import numpy as np3import transpose4# File format parameters5HEADER_LEN = 12       # Bytes: index, loops, n_FFT_int6FRAME_HEADER_LEN = 8  # Bytes: FGPA counts, Unix_time7DTYPE = np.dtype(np.uint32)8# Acquisition parameters9NTIME_RECORD = 1024     # Post integration, post-scrunch. Arbitrary, doesn't matter10FFT_RATE = 800e6 / 1024 / 2   # Hz11NFREQ = 102412FREQ0 = 800.13DELTA_F = -400. / 102414NPOL = 215POL_WEIGHTS = [0., 1.]16CAL_PERIOD_SAMPLES = 017class Ring(object):18    def __init__(self, filename, scrunch=1):19        self._filename = filename20        self._scrunch = scrunch21        with open(filename, 'r') as f:22            s = f.read(HEADER_LEN)23            f.seek(0, 2)24            size = f.tell()25        ring_bytes = size - HEADER_LEN26        integ_bytes = (FRAME_HEADER_LEN + NFREQ * NPOL * DTYPE.itemsize)27        self._ninteg_ring = ring_bytes // integ_bytes28        if ring_bytes % integ_bytes:29            raise RuntimeError('Odd filesize.')30        header = np.fromstring(s, DTYPE)31        self._sample_time = header[2] / FFT_RATE32        self._delta_t = self._sample_time * scrunch33        # The record we will call "0".34        # XXX35        self._record_offset = ((header[0] + int((header[1] - 0.4) * self._ninteg_ring))36                               // (scrunch * NTIME_RECORD))37        #self._record_offset = ((header[0] + header[1] * self._ninteg_ring)38        #                       // (scrunch * NTIME_RECORD))39    def current_records(self):40        ninteg_ring = self._ninteg_ring41        with open(self._filename, 'r') as f:42            s = f.read(HEADER_LEN)43        header = np.fromstring(s, DTYPE)44        index = header[0]45        loops = header[1]46        last_record = ((index + loops * ninteg_ring)47                       // (self._scrunch * NTIME_RECORD) + 1)48        last_record -= self._record_offset49        nrecord_ring = ninteg_ring // (self._scrunch * NTIME_RECORD)50        # The latest 80% of the ring is availble, for safety.51        first_available_record = last_record - int(nrecord_ring * 0.8)52        return first_available_record, last_record53    def get_parameters(self):54        parameters = {}55        parameters['cal_period_samples'] = CAL_PERIOD_SAMPLES56        parameters['delta_t'] = self._delta_t57        parameters['nfreq'] = NFREQ58        parameters['freq0'] = FREQ059        parameters['delta_f'] = DELTA_F60        parameters['ntime_record'] = NTIME_RECORD61        parameters['nrecords'] = self.current_records()[1]62        return parameters63    def read_records(self, start_record=None, end_record=None):64        first_available_record, last_record = self.current_records()65        if start_record is None:66            start_record = first_available_record67        if end_record is None:68            end_record = last_record69        if start_record < first_available_record:70            raise DataGone()71        if end_record > last_record:72            end_record = last_record73        if start_record >= last_record:74            raise ValueError("No data to read.")75        scrunch = self._scrunch76        out = np.empty((NFREQ, (end_record - start_record), NTIME_RECORD),77                       dtype=np.float32)78        time = np.empty(((end_record - start_record), NTIME_RECORD),79                        dtype=np.float32)80        integ_bytes_data = NPOL * NFREQ * DTYPE.itemsize81        integ_bytes = integ_bytes_data + FRAME_HEADER_LEN82        with open(self._filename, 'r') as f:83            for ii in range(end_record - start_record):84                abs_record_ind = ii + start_record + self._record_offset85                record_data = np.zeros((NTIME_RECORD, NFREQ), dtype=np.float32)86                for jj in range(NTIME_RECORD):87                    integ_ind_jj = (abs_record_ind * NTIME_RECORD + jj) * scrunch88                    for kk in range(self._scrunch):89                        integ_ind = (integ_ind_jj + kk) % self._ninteg_ring90                        #f.seek(HEADER_LEN + integ_ind * integ_bytes91                        #       + FRAME_HEADER_LEN)92                        f.seek(HEADER_LEN + integ_ind * integ_bytes)93                        s = f.read(FRAME_HEADER_LEN)94                        header = np.fromstring(s, dtype=DTYPE)95                        if kk == 0:96                            time[ii,jj] = header[1]97                        s = f.read(integ_bytes_data)98                        integ = np.fromstring(s, dtype=DTYPE)99                        integ.shape = (NPOL, NFREQ)100                        for pp in range(NPOL):101                            record_data[jj, :] += POL_WEIGHTS[pp] * integ[pp]102                out[:,ii,:] = transpose.blocked(record_data)103        out.shape = (NFREQ, (end_record - start_record) * NTIME_RECORD)104        time.shape = ((end_record - start_record) * NTIME_RECORD,)105        return out, time106class DataGone(Exception):107    pass108MOCK_N_SAMP_INTEG = 512109MOCK_RING_LEN = 200110MOCK_START_TIME = time.time() - MOCK_RING_LEN111class MockRing(object):112    def __init__(self, filename, scrunch):113        self._scrunch = scrunch114        self._delta_t = MOCK_N_SAMP_INTEG * self._scrunch / FFT_RATE115    def get_parameters(self):116        parameters = {}117        parameters['cal_period_samples'] = CAL_PERIOD_SAMPLES118        parameters['delta_t'] = self._delta_t119        parameters['nfreq'] = NFREQ120        parameters['freq0'] = FREQ0121        parameters['delta_f'] = DELTA_F122        parameters['ntime_record'] = NTIME_RECORD123        parameters['nrecords'] = self.get_nrecords()124        return parameters125    def read_records(self, start_record=None, end_record=None):126        """Right now just generates fake data."""127        128        first_available_record, last_record = self.current_records()129        if start_record is None:130            start_record = first_available_record131        if end_record is None:132            end_record = last_record133        if start_record < first_available_record:134            raise DataGone()135        if end_record > last_record:136            end_record = last_record137        if start_record >= last_record:138            raise ValueError("No data to read.")139        nrecords = end_record - start_record140        ntime = nrecords * NTIME_RECORD141        out = np.empty((NFREQ, nrecords, NTIME_RECORD), dtype=np.float32)142        # The fake part.143        from numpy import random144        # Every record is the same!145        noise = random.randn(NTIME_RECORD, 2, NFREQ)146        record_data = (noise + 32) * 10147        record_data = record_data.astype(np.uint32)148        for ii in range(nrecords):149            out[:,ii,:] = transpose.blocked(record_data[:,0,:] + record_data[:,1,:])150        t0 = time.time() - (self._delta_t * NTIME_RECORD * nrecords)151        time = t0 + np.arange(nrecords) * self._delta_t152        out.shape = (NFREQ, nrecords * NTIME_RECORD)153        return out, time154    def get_nrecords(self):155        """Totally fake."""156        last = int((time.time() - MOCK_START_TIME) / (self._delta_t * NTIME_RECORD))157        #print last158        return last159    def current_records(self):160        last = self.get_nrecords()161        first = last - int(MOCK_RING_LEN / self._delta_t / NTIME_RECORD)...

gather_ieee.py

Source:gather_ieee.py

1# import xplore23# query = xplore.xploreapi.XPLORE('cmvp85nujeda5s27qhyeze28')4# query.abstractText('SOA')5# data = query.callAPI()  6# print(data)7# cmvp85nujeda5s27qhyeze288import requests 9import datetime10import json1112## file name setting13dt = datetime.datetime.now()14timestamp = dt.timestamp()15filename = "ieee " + str(hex(int(timestamp)))16file_ext = ".json"1718## IEEE Explore API19url = "https://ieeexploreapi.ieee.org/api/v1/search/articles?parameter&apikey=cmvp85nujeda5s27qhyeze28"20## search parameter21querytext = "(SOA or ""service oriented architecture"")"22resp_format = "json"23## sorting and paging24max_records = 20025sort_field = "article_number"26sort_order = "asc"27start_record = 40012829params = {'querytext': querytext, 'format':resp_format, 'max_records':max_records, 'sort_field':sort_field, 'sort_order':sort_order, 'start_record':start_record}3031request_cnt = 2032for i in range(0, request_cnt):33    resp = requests.get(url, params=params, verify=False)34    params = {'querytext': querytext, 'format':resp_format, 'max_records':max_records, 'sort_field':sort_field, 'sort_order':sort_order, 'start_record':start_record} 35    print("params is " + str(params))36    # print("request count is " + str(i) + ", Status Code is " + str(resp.status_code) + ", and start record is " + str(start_record))37    start_record = start_record + max_records38    with open(filename + "-" + str(start_record) + file_ext, "a") as json_file :39        json_obj = resp.json()40        json.dump(json_obj["articles"], json_file)41        # json_file.write(", ")42        # json.dump(resp.json(), json_file) 43
...

measuring-station.py

Source:measuring-station.py

1class ADC:2    def start_record(self):3        pass4class ADC1(ADC):5    def start_record(self):6        print('very complex implementation')7class ADC2(ADC):8    def start_record(self):9        print('very very complex implementation!')10class measuring_station:11    def start_record(self):12        pass13    def another_functions(self):14        pass15class ecg_measuring_station:16    def __init__(self, adc):17        self.adc = adc18    def start_record(self, some_args):19        self.adc.start_record(some_args)20if __name__ == "__main__":21    ecg1 = ecg_measuring_station(ADC1)22    ecg1.start_record(None)23    ecg2 = ecg_measuring_station(ADC2)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.