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# Mantid Repository : https://github.com/mantidproject/mantid
#
# Copyright © 2019 ISIS Rutherford Appleton Laboratory UKRI,
# NScD Oak Ridge National Laboratory, European Spallation Source,
# Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
# SPDX - License - Identifier: GPL - 3.0 +
from __future__ import (absolute_import, division, print_function)
from matplotlib import gridspec
import matplotlib.pyplot as plt
from Engineering.gui.engineering_diffraction.tabs.common import vanadium_corrections, path_handling
from Engineering.gui.engineering_diffraction.settings.settings_helper import get_setting
from mantid.simpleapi import EnggFocus, logger, AnalysisDataService as Ads, SaveNexus, SaveGSS, SaveFocusedXYE, \
LoadAscii
SAMPLE_RUN_WORKSPACE_NAME = "engggui_focusing_input_ws"
FOCUSED_OUTPUT_WORKSPACE_NAME = "engggui_focusing_output_ws_bank_"
def focus_run(self, sample_paths, banks, plot_output, instrument, rb_num, spectrum_numbers):
"""
Focus some data using the current calibration.
:param sample_paths: The paths to the data to be focused.
:param banks: The banks that should be focused.
:param plot_output: True if the output should be plotted.
:param instrument: The instrument that the data came from.
:param rb_num: The experiment number, used to create directories. Can be None
:param spectrum_numbers: The specific spectra that should be focused. Used instead of banks.
if not Ads.doesExist(vanadium_corrections.INTEGRATED_WORKSPACE_NAME) and not Ads.doesExist(
vanadium_corrections.CURVES_WORKSPACE_NAME):
integration_workspace = Ads.retrieve(vanadium_corrections.INTEGRATED_WORKSPACE_NAME)
curves_workspace = Ads.retrieve(vanadium_corrections.CURVES_WORKSPACE_NAME)
output_workspaces = [] # List of collated workspaces to plot.
full_calib_path = get_setting(path_handling.INTERFACES_SETTINGS_GROUP,
path_handling.ENGINEERING_PREFIX, "full_calibration")
if full_calib_path is not None and path.exists(full_calib_path):
full_calib_workspace = LoadAscii(full_calib_path, OutputWorkspace="det_pos", Separator="Tab")
else:
full_calib_workspace = None
for sample_path in sample_paths:
sample_workspace = path_handling.load_workspace(sample_path)
run_no = path_handling.get_run_number_from_path(sample_path, instrument)
workspaces_for_run = []
for name in banks:
output_workspace_name = str(run_no) + "_" + FOCUSED_OUTPUT_WORKSPACE_NAME + str(name)
self._run_focus(sample_workspace, output_workspace_name, integration_workspace,
curves_workspace, name, full_calib_workspace)
workspaces_for_run.append(output_workspace_name)
# Save the output to the file system.
self._save_output(instrument, sample_path, name, output_workspace_name, rb_num)
output_workspaces.append(workspaces_for_run)
for sample_path in sample_paths:
sample_workspace = path_handling.load_workspace(sample_path)
run_no = path_handling.get_run_number_from_path(sample_path, instrument)
output_workspace_name = str(run_no) + "_" + FOCUSED_OUTPUT_WORKSPACE_NAME + "cropped"
self._run_focus(sample_workspace, output_workspace_name, integration_workspace,
curves_workspace, None, full_calib_workspace, spectrum_numbers)
output_workspaces.append([output_workspace_name])
self._save_output(instrument, sample_path, "cropped", output_workspace_name, rb_num)
# Plot the output
if plot_output:
for ws_names in output_workspaces:
self._plot_focused_workspaces(ws_names)
def _run_focus(input_workspace,
output_workspace,
vanadium_integration_ws,
vanadium_curves_ws,
bank,
full_calib_ws=None,
spectrum_numbers=None):
kwargs = {
"InputWorkspace": input_workspace,
"OutputWorkspace": output_workspace,
"VanIntegrationWorkspace": vanadium_integration_ws,
"VanCurvesWorkspace": vanadium_curves_ws
}
if full_calib_ws is not None:
kwargs["DetectorPositions"] = full_calib_ws
if bank is None:
kwargs["SpectrumNumbers"] = spectrum_numbers
else:
kwargs["Bank"] = bank
except RuntimeError as e:
logger.error(
"Error in focusing, Could not run the EnggFocus algorithm successfully for bank "
+ str(bank) + ". Error Description: " + str(e))
def _plot_focused_workspaces(focused_workspaces):
fig = plt.figure()
gs = gridspec.GridSpec(1, len(focused_workspaces))
plots = [
fig.add_subplot(gs[i], projection="mantid") for i in range(len(focused_workspaces))
]
for ax, ws_name in zip(plots, focused_workspaces):
ax.plot(Ads.retrieve(ws_name), wkspIndex=0)
ax.set_title(ws_name)
fig.show()
def _save_output(self, instrument, sample_path, bank, sample_workspace, rb_num):
Save a focused workspace to the file system. Saves separate copies to a User directory if an rb number has
been set.
:param instrument: The instrument the data is from.
:param sample_path: The path to the data file that was focused.
:param bank: The name of the bank being saved.
:param sample_workspace: The name of the workspace to be saved.
:param rb_num: Usually an experiment id, defines the name of the user directory.
self._save_focused_output_files_as_nexus(instrument, sample_path, bank, sample_workspace,
self._save_focused_output_files_as_gss(instrument, sample_path, bank, sample_workspace,
self._save_focused_output_files_as_xye(instrument, sample_path, bank, sample_workspace,
def _save_focused_output_files_as_gss(self, instrument, sample_path, bank, sample_workspace,
gss_output_path = path.join(
path_handling.get_output_path(), "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".gss"))
SaveGSS(InputWorkspace=sample_workspace, Filename=gss_output_path)
gss_output_path = path.join(
path_handling.get_output_path(), "User", rb_num, "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".gss"))
SaveGSS(InputWorkspace=sample_workspace, Filename=gss_output_path)
def _save_focused_output_files_as_nexus(self, instrument, sample_path, bank, sample_workspace,
nexus_output_path = path.join(
path_handling.get_output_path(), "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".nxs"))
SaveNexus(InputWorkspace=sample_workspace, Filename=nexus_output_path)
nexus_output_path = path.join(
path_handling.get_output_path(), "User", rb_num, "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".nxs"))
SaveNexus(InputWorkspace=sample_workspace, Filename=nexus_output_path)
def _save_focused_output_files_as_xye(self, instrument, sample_path, bank, sample_workspace,
xye_output_path = path.join(
path_handling.get_output_path(), "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".dat"))
SaveFocusedXYE(InputWorkspace=sample_workspace, Filename=xye_output_path, SplitFiles=False)
xye_output_path = path.join(
path_handling.get_output_path(), "User", rb_num, "Focus",
self._generate_output_file_name(instrument, sample_path, bank, ".dat"))
SaveFocusedXYE(InputWorkspace=sample_workspace,
Filename=xye_output_path,
SplitFiles=False)
def _generate_output_file_name(instrument, sample_path, bank, suffix):
run_no = path_handling.get_run_number_from_path(sample_path, instrument)
return instrument + "_" + run_no + "_bank_" + bank + suffix