Source code for eispac.core.match_templates

__all__ = ['match_templates']

import os
import sys
import glob
import pathlib
import numpy as np
import h5py
from eispac.core.eiscube import EISCube
from eispac.core.read_wininfo import read_wininfo
import eispac.data

[docs]def match_templates(eis_obs): """Generate a list of all template files that match an EIS file or window. Parameters ---------- eis_obs : `~eispac.core.EISCube` object, str, or `pathlib.Path` EIS data to use for searching. If given an EISCube, will only find templates that match the selected spectral window. If given the filepath to an EIS level-1 HDF5 file, will find all templates that match each window in the observation. Returns ------- matched_templates : list or list of lists List of template files that match the selected spectral window. If a filepath was input, a list of lists will be returned instead. Each sublist contains the matched templates for the corresponding window (e.g. matched_templates[0] would contain the list of templates matching the first window in the data file). """ # Validate input if isinstance(eis_obs, (str, pathlib.Path)): wininfo = read_wininfo(eis_obs) iwin_list = list(range(wininfo.size)) elif isinstance(eis_obs, EISCube): wininfo = eis_obs.meta['wininfo'] iwin_list = [eis_obs.meta['iwin']] else: print('Error: missing or invalid eis_obs. Please input a filepath or' +' EISCube class instance', file=sys.stderr) return None # Get master list of all templates included in eispac all_templates = np.array(eispac.data.fit_template_filenames()) num_templates = len(all_templates) template_waves = np.zeros(num_templates) # Extract line wavelengths # Note: filenames have forms like "fe_12_195_119.2c.template.h5" # or "s__11_188_675.3c.template.h5" for t in range(num_templates): line_id_str = all_templates[t].name.split('.')[0] line_id_str.replace('__', '_') # single character elements are padded line_id_parts = line_id_str.split('_') template_waves[t] = float(line_id_parts[2]+'.'+line_id_parts[3]) # Loop over each spectral window and find all matching templates matched_templates = [] for w in iwin_list: temp_file_list = [] loc_templates = np.where((template_waves > wininfo[w].wvl_min) &(template_waves < wininfo[w].wvl_max))[0] if len(loc_templates) > 0: for f in loc_templates: temp_file_list.append(all_templates[f]) matched_templates.append(temp_file_list) if len(iwin_list) == 1: return matched_templates[0] else: return matched_templates