def transform_wavelength_solutions(helper, band, obsids):
# load affine transform
master_obsid = obsids[0]
caldb = helper.get_caldb()
orders = caldb.load_resource_for((band, master_obsid), "orders")["orders"]
d = caldb.load_item_from((band, master_obsid),
"ALIGNING_MATRIX_JSON")
affine_tr_matrix = d["affine_tr_matrix"]
# load echellogram
from libs.master_calib import load_ref_data
echellogram_data = load_ref_data(helper.config, band,
kind="ECHELLOGRAM_JSON")
from libs.echellogram import Echellogram
echellogram = Echellogram.from_dict(echellogram_data)
wvl_sol = get_wavelength_solutions(affine_tr_matrix,
echellogram.zdata,
orders)
caldb.store_dict((band, master_obsid),
item_type="WVLSOL_V0_JSON",
data=dict(orders=orders,
wvl_sol=wvl_sol))
return wvl_sol
def find_affine_transform(helper, band, obsids):
master_obsid = obsids[0]
caldb = helper.get_caldb()
orders = caldb.load_resource_for((band, master_obsid), "orders")["orders"]
ap = get_simple_aperture(helper, band, obsids, orders=orders)
item_path = caldb.query_item_path((band, master_obsid),
"IDENTIFIED_LINES_JSON")
from libs.identified_lines import IdentifiedLines
identified_lines_tgt = IdentifiedLines.load(item_path)
xy_list_tgt = identified_lines_tgt.get_xy_list_from_pixlist(ap)
from libs.echellogram import Echellogram
from libs.master_calib import load_ref_data
echellogram_data = load_ref_data(helper.config, band,
kind="ECHELLOGRAM_JSON")
echellogram = Echellogram.from_dict(echellogram_data)
xy_list_ref = identified_lines_tgt.get_xy_list_from_wvllist(echellogram)
assert len(xy_list_tgt) == len(xy_list_ref)
from libs.align_echellogram_thar import fit_affine_clip
affine_tr, mm = fit_affine_clip(np.array(xy_list_ref),
np.array(xy_list_tgt))
from libs.products import PipelineDict
d = PipelineDict(xy1f=xy_list_ref, xy2f=xy_list_tgt,
affine_tr_matrix=affine_tr.get_matrix(),
affine_tr_mask=mm)
caldb.store_dict((band, master_obsid),
item_type="ALIGNING_MATRIX_JSON",
data=d)