beamline.py 文件源码

def __convert_survey_to_sequence(self):
        s = self.__beamline
        if 'LENGTH' not in s:
            s['LENGTH'] = np.nan
        offset = s['ORBIT_LENGTH'][0] / 2.0
        if pd.isnull(offset):
            offset = 0
        self.__beamline['AT_CENTER'] = pd.DataFrame(
            npl.norm(
                [
                    s['X'].diff().fillna(0.0),
                    s['Y'].diff().fillna(0.0)
                ],
                axis=0
            ) - (
                s['LENGTH'].fillna(0.0) / 2.0 - s['ORBIT_LENGTH'].fillna(0.0) / 2.0
            ) + (
                s['LENGTH'].shift(1).fillna(0.0) / 2.0 - s['ORBIT_LENGTH'].shift(1).fillna(0.0) / 2.0
            )).cumsum() / 1000.0 + offset
        self.__converted_from_survey = True