diff options
Diffstat (limited to 'wcsutil/instruments.py')
| -rw-r--r-- | wcsutil/instruments.py | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/wcsutil/instruments.py b/wcsutil/instruments.py index a80ec31..e2c2b0b 100644 --- a/wcsutil/instruments.py +++ b/wcsutil/instruments.py @@ -9,7 +9,7 @@ class InstrWCS(object): It prvides a default implementation (modeled by ACS) for all set_kw methods. """ - def __init__(self, hdr0, hdr): + def __init__(self, hdr0=None, hdr=None): self.exthdr = hdr self.primhdr = hdr0 @@ -31,31 +31,52 @@ class InstrWCS(object): self.set_parity() def set_filter1(self): - self.filter1 = self.primhdr.get('FILTER1', None) - + try: + self.filter1 = self.primhdr.get('FILTER1', None) + except: + self.filter1 = None def set_filter2(self): - self.filter2 = self.primhdr.get('FILTER2', None) - + try: + self.filter2 = self.primhdr.get('FILTER2', None) + except: + self.filter2 = None def set_vafactor(self): - self.vafactor = self.exthdr.get('vafactor', 1) - + try: + self.vafactor = self.exthdr.get('vafactor', 1) + except: + self.vafactor = 1. def set_naxis1(self): - self.naxis1 = self.exthdr.get('naxis1', None) - + try: + self.naxis1 = self.exthdr.get('naxis1', None) + except: + self.naxis1 = None def set_naxis2(self): - self.naxis2 = self.exthdr.get('naxis2', None) - + try: + self.naxis2 = self.exthdr.get('naxis2', None) + except: + self.naxis2 = None def set_ltv1(self): - self.ltv1 = self.exthdr.get('ltv1', 0.0) + try: + self.ltv1 = self.exthdr.get('ltv1', 0.0) + except: + self.ltv1 = 0.0 def set_ltv2(self): - self.ltv2 = self.exthdr.get('ltv2', 0.0) + try: + self.ltv2 = self.exthdr.get('ltv2', 0.0) + except: + self.ltv2 = 0.0 def set_binned(self): - self.binned = self.exthdr.get('BINAXIS1', 1) - + try: + self.binned = self.exthdr.get('BINAXIS1', 1) + except: + self.binned = 1 def set_chip(self): - self.chip = self.exthdr.get('CCDCHIP', 1) + try: + self.chip = self.exthdr.get('CCDCHIP', 1) + except: + self.chip = 1 def set_parity(self): self.parity = [[1.0,0.0],[0.0,-1.0]] @@ -75,8 +96,14 @@ class ACSWCS(InstrWCS): parity = {'WFC':[[1.0,0.0],[0.0,-1.0]], 'HRC':[[-1.0,0.0],[0.0,1.0]], 'SBC':[[-1.0,0.0],[0.0,1.0]]} - detector = self.primhdr.get('detector', None) - self.parity = parity[detector] + try: + detector = self.primhdr.get('detector', None) + except: + detector = None + if detector not in parity.keys(): + parity = InstrWCS.set_parity(self) + else: + self.parity = parity[detector] class WFPC2WCS(InstrWCS): |