TakeADCOffsetGridData

Bases: KPFTranslatorFunction

Source code in kpf/engineering/TakeADCOffsetGridData.py 
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class TakeADCOffsetGridData(KPFTranslatorFunction):
    '''
    '''
    @classmethod
    def pre_condition(cls, OB, logger, cfg):
        pass

    @classmethod
    @register_script(Path(__file__).name, os.getpid())
    @add_script_log(Path(__file__).name.replace(".py", ""))
    def perform(cls, args, logger, cfg):
        log.info('-------------------------')
        log.info(f"Running {cls.__name__}")
        for key in args:
            log.debug(f"  {key}: {args[key]}")
        log.info('-------------------------')

        adc1delta = args.get('ADC1DELTA', 5)
        adc2delta = args.get('ADC2DELTA', 5)
        adcstep = args.get('ADCSTEP', 1)
        adc1deltas = np.arange(-adc1delta, adc1delta, adcstep)
        adc2deltas = np.arange(-adc2delta, adc2delta, adcstep)

        fvcsleeptime = 0.25

        ADCPRISMS = ktl.cache('kpffiu', 'ADCPRISMS')
        ADCPRISMS.monitor()
        ADC1VAL = ktl.cache('kpffiu', 'ADC1VAL')
        ADC1VAL.monitor()
        ADC2VAL = ktl.cache('kpffiu', 'ADC2VAL')
        ADC2VAL.monitor()
        LASTFILE = ktl.cache('kpffvc', 'EXTLASTFILE')
        LASTFILE.monitor()

        this_file_name = Path(__file__).name.replace('.py', '')
        utnow = datetime.utcnow()
        now_str = utnow.strftime('%Y%m%dat%H%M%S')
        date_str = (utnow-timedelta(days=1)).strftime('%Y%b%d').lower()
        log_path = Path(f'/s/sdata1701/KPFTranslator_logs/{date_str}')
        images_file = log_path / Path(f'{this_file_name}_{now_str}.txt')
        images = Table(names=('file', 'DELTA1', 'DELTA2', 'ADC1VAL', 'ADC2VAL'),
                       dtype=('a90',  'f4',     'f4',     'f4', 'f4'))

        for i,delta1 in enumerate(adc1deltas):
            for j,delta2 in enumerate(adc2deltas):
                log.info(f'Moving ADCs to offset positions: {delta1:.1f}, {delta2:.1f}')
                SetADCOffsets.execute({'ADC1OFF': delta1, 'ADC2OFF': delta2})
                log.info('Taking EXT FVC exposure')
                TakeFVCExposure.execute({'camera': 'EXT'})
                time.sleep(fvcsleeptime)
                row = {'file': str(LASTFILE),
                       'DELTA1': delta1,
                       'DELTA2': delta2,
                       'ADC1VAL': str(ADC1VAL),
                       'ADC2VAL': str(ADC2VAL)}
                log.info(f'  {row["file"]}')
                images.add_row(row)
                if images_file.exists():
                    images_file.unlink()
                images.write(images_file, format='ascii.csv')
        log.info('Done')


    @classmethod
    def post_condition(cls, OB, logger, cfg):
        pass

    @classmethod
    def add_cmdline_args(cls, parser, cfg=None):
        parser.add_argument('ADC1DELTA', type=float,
                            help="Maximum ADC1 offset from nominal")
        parser.add_argument('ADC2DELTA', type=float,
                            help="Maximum ADC2 offset from nominal")
        parser.add_argument('ADCSTEP', type=float,
                            help="Anglular step size")
        return super().add_cmdline_args(parser, cfg)