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-rw-r--r--stwcs/updatewcs/det2im.py95
1 files changed, 47 insertions, 48 deletions
diff --git a/stwcs/updatewcs/det2im.py b/stwcs/updatewcs/det2im.py
index bddb37b..bb4cd9c 100644
--- a/stwcs/updatewcs/det2im.py
+++ b/stwcs/updatewcs/det2im.py
@@ -1,14 +1,13 @@
-from __future__ import absolute_import, division # confidence high
+from __future__ import absolute_import, division, print_function
-import numpy as np
from astropy.io import fits
from stsci.tools import fileutil
-from . import utils
-
-import logging, time
+import logging
+import time
logger = logging.getLogger('stwcs.updatewcs.d2im')
+
class DET2IMCorr(object):
"""
Defines a Lookup table prior distortion correction as per WCS paper IV.
@@ -38,11 +37,11 @@ class DET2IMCorr(object):
Science file, for which a distortion correction in a NPOLFILE is available
"""
- logger.info("\n\tStarting DET2IM: %s" %time.asctime())
+ logger.info("Starting DET2IM: {0}".format(time.asctime()))
try:
assert isinstance(fobj, fits.HDUList)
except AssertionError:
- logger.exception('\n\tInput must be a fits.HDUList object')
+ logger.exception('Input must be a fits.HDUList object')
raise
cls.applyDet2ImCorr(fobj)
@@ -84,7 +83,7 @@ class DET2IMCorr(object):
hdu = cls.createD2ImHDU(header, d2imfile=d2imfile,
wdvarr_ver=d2im_num_ext,
d2im_extname=ename[0],
- data=ename[1],ccdchip=ccdchip)
+ data=ename[1], ccdchip=ccdchip)
if wcsdvarr_ind and d2im_num_ext in wcsdvarr_ind:
fobj[wcsdvarr_ind[d2im_num_ext]] = hdu
else:
@@ -108,7 +107,7 @@ class DET2IMCorr(object):
continue
if ename == 'D2IMARR':
wcsd[fobj[e].header['EXTVER']] = e
- logger.debug("A map of D2IMARR extensions %s" % wcsd)
+ logger.debug("A map of D2IMARR extensions {0}".format(wcsd))
return wcsd
getWCSIndex = classmethod(getWCSIndex)
@@ -118,17 +117,17 @@ class DET2IMCorr(object):
Adds kw to sci extension to define WCSDVARR lookup table extensions
"""
- if d2im_extname =='DX':
- j=1
+ if d2im_extname == 'DX':
+ j = 1
else:
- j=2
-
- d2imerror = 'D2IMERR%s' %j
- d2imdis = 'D2IMDIS%s' %j
- d2imext = 'D2IM%s.' %j + 'EXTVER'
- d2imnaxes = 'D2IM%s.' %j +'NAXES'
- d2imaxis1 = 'D2IM%s.' %j+'AXIS.1'
- d2imaxis2 = 'D2IM%s.' %j+'AXIS.2'
+ j = 2
+
+ d2imerror = 'D2IMERR%s' % j
+ d2imdis = 'D2IMDIS%s' % j
+ d2imext = 'D2IM%s.' % j + 'EXTVER'
+ d2imnaxes = 'D2IM%s.' % j + 'NAXES'
+ d2imaxis1 = 'D2IM%s.' % j + 'AXIS.1'
+ d2imaxis2 = 'D2IM%s.' % j + 'AXIS.2'
keys = [d2imerror, d2imdis, d2imext, d2imnaxes, d2imaxis1, d2imaxis2]
values = {d2imerror: error_val,
d2imdis: 'Lookup',
@@ -154,7 +153,7 @@ class DET2IMCorr(object):
addSciExtKw = classmethod(addSciExtKw)
- def getData(cls,d2imfile, ccdchip):
+ def getData(cls, d2imfile, ccdchip):
"""
Get the data arrays from the reference D2I files
Make sure 'CCDCHIP' in the npolfile matches "CCDCHIP' in the science file.
@@ -162,8 +161,8 @@ class DET2IMCorr(object):
xdata, ydata = (None, None)
d2im = fits.open(d2imfile)
for ext in d2im:
- d2imextname = ext.header.get('EXTNAME',"")
- d2imccdchip = ext.header.get('CCDCHIP',1)
+ d2imextname = ext.header.get('EXTNAME', "")
+ d2imccdchip = ext.header.get('CCDCHIP', 1)
if d2imextname == 'DX' and d2imccdchip == ccdchip:
xdata = ext.data.copy()
continue
@@ -177,7 +176,7 @@ class DET2IMCorr(object):
getData = classmethod(getData)
def createD2ImHDU(cls, sciheader, d2imfile=None, wdvarr_ver=1,
- d2im_extname=None,data = None, ccdchip=1):
+ d2im_extname=None, data=None, ccdchip=1):
"""
Creates an HDU to be added to the file object.
"""
@@ -216,26 +215,26 @@ class DET2IMCorr(object):
naxis = d2im[1].header['NAXIS']
ccdchip = d2imextname
- kw = { 'NAXIS': 'Size of the axis',
- 'CDELT': 'Coordinate increment along axis',
- 'CRPIX': 'Coordinate system reference pixel',
- 'CRVAL': 'Coordinate system value at reference pixel',
- }
+ kw = {'NAXIS': 'Size of the axis',
+ 'CDELT': 'Coordinate increment along axis',
+ 'CRPIX': 'Coordinate system reference pixel',
+ 'CRVAL': 'Coordinate system value at reference pixel',
+ }
kw_comm1 = {}
kw_val1 = {}
for key in kw.keys():
- for i in range(1, naxis+1):
+ for i in range(1, naxis + 1):
si = str(i)
- kw_comm1[key+si] = kw[key]
+ kw_comm1[key + si] = kw[key]
- for i in range(1, naxis+1):
+ for i in range(1, naxis + 1):
si = str(i)
- kw_val1['NAXIS'+si] = d2im_header.get('NAXIS'+si)
- kw_val1['CDELT'+si] = d2im_header.get('CDELT'+si, 1.0) * sciheader.get('LTM'+si+'_'+si, 1)
- kw_val1['CRPIX'+si] = d2im_header.get('CRPIX'+si, 0.0)
- kw_val1['CRVAL'+si] = (d2im_header.get('CRVAL'+si, 0.0) - \
- sciheader.get('LTV'+str(i), 0))
+ kw_val1['NAXIS' + si] = d2im_header.get('NAXIS' + si)
+ kw_val1['CDELT' + si] = d2im_header.get('CDELT' + si, 1.0) * sciheader.get('LTM' + si + '_' + si, 1)
+ kw_val1['CRPIX' + si] = d2im_header.get('CRPIX' + si, 0.0)
+ kw_val1['CRVAL' + si] = (d2im_header.get('CRVAL' + si, 0.0) -
+ sciheader.get('LTV' + str(i), 0))
kw_comm0 = {'XTENSION': 'Image extension',
'BITPIX': 'IEEE floating point',
'NAXIS': 'Number of axes',
@@ -245,15 +244,15 @@ class DET2IMCorr(object):
'GCOUNT': 'One data group',
}
- kw_val0 = { 'XTENSION': 'IMAGE',
- 'BITPIX': -32,
- 'NAXIS': naxis,
- 'EXTNAME': 'D2IMARR',
- 'EXTVER': wdvarr_ver,
- 'PCOUNT': 0,
- 'GCOUNT': 1,
- 'CCDCHIP': ccdchip,
- }
+ kw_val0 = {'XTENSION': 'IMAGE',
+ 'BITPIX': -32,
+ 'NAXIS': naxis,
+ 'EXTNAME': 'D2IMARR',
+ 'EXTVER': wdvarr_ver,
+ 'PCOUNT': 0,
+ 'GCOUNT': 1,
+ 'CCDCHIP': ccdchip,
+ }
cdl = []
for key in kw_comm0.keys():
cdl.append((key, kw_val0[key], kw_comm0[key]))
@@ -266,8 +265,8 @@ class DET2IMCorr(object):
for i, c in enumerate(d2im_phdr):
if c == 'FILENAME':
start_indx = i
- if c == '': # remove blanks from end of header
- end_indx = i+1
+ if c == '': # remove blanks from end of header
+ end_indx = i + 1
break
if start_indx >= 0:
for card in d2im_phdr.cards[start_indx:end_indx]:
@@ -287,7 +286,7 @@ class DET2IMCorr(object):
if fobj[0].header['INSTRUME'] == 'ACS' and fobj[0].header['DETECTOR'] == 'WFC':
ccdchip = fobj[extname, extver].header['CCDCHIP']
elif fobj[0].header['INSTRUME'] == 'WFC3' and fobj[0].header['DETECTOR'] == 'UVIS':
- ccdchip = fobj[extname, extver].header['CCDCHIP']
+ ccdchip = fobj[extname, extver].header['CCDCHIP']
elif fobj[0].header['INSTRUME'] == 'WFPC2':
ccdchip = fobj[extname, extver].header['DETECTOR']
elif fobj[0].header['INSTRUME'] == 'STIS':
generated by cgit (git 2.34.1) at 2025-04-29 07:45:12 -0400