Tibeuleu/FOC_Reduction
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revert to previous WCS computation as it broke again

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This commit is contained in:
Thibault Barnouin
2025-04-10 18:42:19 +02:00
parent 278a31beab
commit f1eecf2705
3 changed files with 22 additions and 21 deletions
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13
package/lib/fits.py
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@@ -65,24 +65,25 @@ def get_obs_data(infiles, data_folder="", compute_flux=False):
for wcs, header in zip(wcs_array, headers):
new_wcs = wcs.deepcopy()
if new_wcs.wcs.has_cd():
# Update WCS with relevant information
del new_wcs.wcs.cd
keys = list(new_wcs.to_header().keys()) + ["CD1_1", "CD1_2", "CD1_3", "CD2_1", "CD2_2", "CD2_3", "CD3_1", "CD3_2", "CD3_3"]
for key in keys:
header.remove(key, ignore_missing=True)
cdelt, orient = wcs_CD_to_PC(wcs.wcs.cd)
new_wcs.wcs.pc = wcs.wcs.cd.dot(np.diag(1.0 / cdelt))
new_wcs.wcs.cdelt = cdelt
new_cdelt = np.linalg.eigvals(wcs.wcs.cd)
new_wcs.wcs.pc = wcs.wcs.cd.dot(np.diag(1.0 / new_cdelt))
new_wcs.wcs.cdelt = new_cdelt
try:
header["ORIENTAT"] = float(header["ORIENTAT"])
except KeyError:
header["ORIENTAT"] = -orient
elif new_wcs.wcs.has_pc() and (new_wcs.wcs.cdelt[:2] != np.array([1.0, 1.0])).all():
header["ORIENTAT"] = -wcs_CD_to_PC(new_wcs.wcs.cd)[1]
elif (new_wcs.wcs.cdelt[:2] != np.array([1.0, 1.0])).all():
try:
header["ORIENTAT"] = float(header["ORIENTAT"])
except KeyError:
header["ORIENTAT"] = -wcs_PA(new_wcs.wcs.pc, new_wcs.wcs.cdelt)
else:
print("Could not compute ORIENTAT or CDELT from WCS")
print("Couldn't compute ORIENTAT from WCS")
for key, val in new_wcs.to_header().items():
header[key] = val