Newer
Older
from __future__ import (absolute_import, division, print_function)
import mantid.simpleapi as mantid
import isis_powder.routines.common as common
from isis_powder.routines import yaml_parser
from isis_powder.abstract_inst import AbstractInst
from isis_powder.polaris_routines import polaris_advanced_config, polaris_algs, polaris_output
class Polaris(AbstractInst):
# Instrument specific properties
def __init__(self, chopper_on, config_file=None, **kwargs):
expected_keys = ["user_name", "calibration_directory", "output_directory",
"apply_solid_angle", "calibration_mapping_file"]
yaml_parser.set_kwargs_from_config_file(config_path=config_file, kwargs=kwargs, keys_to_find=expected_keys)
super(Polaris, self).__init__(user_name=kwargs["user_name"], calibration_dir=kwargs["calibration_directory"],
output_dir=kwargs["output_directory"])
self._calibration_mapping_path = kwargs["calibration_mapping_file"]
self._chopper_on = chopper_on
# Hold the last dictionary later to avoid us having to keep parsing the YAML
self._run_details_last_run_number = None
self._run_details_cached_obj = None
self._ads_workaround = 0
def focus(self, run_number, input_mode, do_van_normalisation=True):
return self._focus(run_number=run_number, input_batching=input_mode, do_van_normalisation=do_van_normalisation)
def create_calibration_vanadium(self, run_in_range, do_absorb_corrections=True, gen_absorb_correction=False):
run_details = self.get_run_details(run_number_string=int(run_in_range))
run_details.run_number = run_details.vanadium_run_numbers
return self._create_calibration_vanadium(vanadium_runs=run_details.vanadium_run_numbers,
empty_runs=run_details.empty_runs,
do_absorb_corrections=do_absorb_corrections,
gen_absorb_correction=gen_absorb_correction)
def get_default_group_names(self):
return self._calibration_grouping_names
# Abstract implementation
def get_run_details(self, run_number_string):
input_run_number_list = common.generate_run_numbers(run_number_string=run_number_string)
first_run = input_run_number_list[0]
if self._run_details_last_run_number == first_run:
return self._run_details_cached_obj
solid_angle_on = bool(polaris_advanced_config.standard_variables["apply_solid_angle_corrections"])
run_details = polaris_algs.get_run_details(chopper_on=self._chopper_on, sac_on=solid_angle_on,
run_number=first_run, calibration_dir=self._calibration_dir,
mapping_path=self._calibration_mapping_path)
# Hold obj in case same run range is requested
self._run_details_last_run_number = first_run
self._run_details_cached_obj = run_details
return run_details
@staticmethod
def generate_inst_file_name(run_number):
if isinstance(run_number, list):
updated_list = ["POL" + str(val) for val in run_number]
return updated_list
else:
return "POL" + str(run_number)
def normalise_ws(self, ws_to_correct, run_details=None):
normalised_ws = mantid.NormaliseByCurrent(InputWorkspace=ws_to_correct, OutputWorkspace=ws_to_correct)
return normalised_ws
def apply_solid_angle_efficiency_corr(self, ws_to_correct, run_details):
solid_angle_on = bool(polaris_advanced_config.standard_variables["apply_solid_angle_corrections"])
if not solid_angle_on:
return ws_to_correct
corrections = polaris_algs.generate_solid_angle_corrections(run_details=run_details, instrument=self)
corrected_ws = mantid.Divide(LHSWorkspace=ws_to_correct, RHSWorkspace=corrections)
common.remove_intermediate_workspace(corrections)
common.remove_intermediate_workspace(ws_to_correct)
ws_to_correct = corrected_ws
return ws_to_correct
def correct_sample_vanadium(self, focused_ws, vanadium_ws=None):
spectra_name = "sample_ws-" + str(self._ads_workaround + 1)
self._ads_workaround += 1
if vanadium_ws:
van_rebinned = mantid.RebinToWorkspace(WorkspaceToRebin=vanadium_ws, WorkspaceToMatch=focused_ws)
mantid.Divide(LHSWorkspace=focused_ws, RHSWorkspace=van_rebinned, OutputWorkspace=spectra_name)
common.remove_intermediate_workspace(van_rebinned)
return spectra_name
def spline_vanadium_ws(self, focused_vanadium_spectra, instrument_version=''):
masking_file_name = polaris_advanced_config.file_names["bragg_peaks_masking"]
spline_coeff = polaris_advanced_config.standard_variables["b_spline_coefficient"]
masking_file_path = os.path.join(self.calibration_dir, masking_file_name)
output = polaris_algs.process_vanadium_for_focusing(bank_spectra=focused_vanadium_spectra,
spline_number=spline_coeff,
mask_path=masking_file_path)
return output
def generate_vanadium_absorb_corrections(self, calibration_full_paths, ws_to_match):
return polaris_algs.generate_absorb_corrections(ws_to_match=ws_to_match)
def output_focused_ws(self, processed_spectra, run_details, output_mode=None):
d_spacing_group, tof_group = polaris_algs.split_into_tof_d_spacing_groups(processed_spectra)
output_paths = self._generate_out_file_paths(run_details=run_details)
polaris_output.save_polaris_focused_data(d_spacing_group=d_spacing_group, tof_group=tof_group,
output_paths=output_paths, run_number=run_details.run_number)
return d_spacing_group
def crop_short_long_mode(self, ws_to_crop):
cropped_ws = common.crop_in_tof(ws_to_rebin=ws_to_crop, x_min=800, x_max=20000)
return cropped_ws