Inheritance diagram for lsst.obs.decam.rawFormatter.DarkEnergyCameraRawFormatter:
Public Member Functions | |
| getDetector (self, id) | |
| readMetadata (self) | |
| readImage (self) | |
Static Public Attributes | |
| translatorClass = astro_metadata_translator.DecamTranslator | |
| filterDefinitions = DarkEnergyCamera.filterDefinitions | |
| bool | wcsFlipX = True |
Protected Member Functions | |
| _scanHdus (self, filename, detectorId) | |
| _determineHDU (self, detectorId) | |
Detailed Description
Definition at line 50 of file rawFormatter.py.
Member Function Documentation
◆ _determineHDU()
|
protected |
Determine the correct HDU number for a given detector id.
Parameters
----------
detectorId : `int`
The detector id to search for.
Returns
-------
index : `int`
The index of the HDU with the requested data.
metadata : `lsst.daf.base.PropertyList`
The metadata read from the header for that detector id.
Raises
------
ValueError
Raised if detectorId is not found in any of the file HDUs
Reimplemented in lsst.obs.decam.rawFormatter.DarkEnergyCameraCPCalibFormatter.
Definition at line 98 of file rawFormatter.py.
98 def _determineHDU(self, detectorId):
99 """Determine the correct HDU number for a given detector id.
100
101 Parameters
102 ----------
103 detectorId : `int`
104 The detector id to search for.
105
106 Returns
107 -------
108 index : `int`
109 The index of the HDU with the requested data.
110 metadata : `lsst.daf.base.PropertyList`
111 The metadata read from the header for that detector id.
112
113 Raises
114 ------
115 ValueError
116 Raised if detectorId is not found in any of the file HDUs
117 """
118 filename = self.fileDescriptor.location.path
119 try:
120 index = detector_to_hdu[detectorId]
121 metadata = lsst.afw.fits.readMetadata(filename, index)
122 if metadata['CCDNUM'] != detectorId:
123 # the detector->HDU mapping is different in this file: try scanning
124 return self._scanHdus(filename, detectorId)
125 else:
127 fitsData.setHdu(index)
128 return index, metadata
130 # if the file doesn't contain all the HDUs of "normal" files, try scanning
131 return self._scanHdus(filename, detectorId)
132
An exception thrown when problems are found when reading or writing FITS files.
Definition fits.h:36
A simple struct that combines the two arguments that must be passed to most cfitsio routines and cont...
Definition fits.h:308
std::shared_ptr< daf::base::PropertyList > readMetadata(std::string const &fileName, int hdu=DEFAULT_HDU, bool strip=false)
Read FITS header.
Definition fits.cc:1689
◆ _scanHdus()
|
protected |
Scan through a file for the HDU containing data from one detector.
Parameters
----------
filename : `str`
The file to search through.
detectorId : `int`
The detector id to search for.
Returns
-------
index : `int`
The index of the HDU with the requested data.
metadata: `lsst.daf.base.PropertyList`
The metadata read from the header for that detector id.
Raises
------
ValueError
Raised if detectorId is not found in any of the file HDUs
Definition at line 62 of file rawFormatter.py.
62 def _scanHdus(self, filename, detectorId):
63 """Scan through a file for the HDU containing data from one detector.
64
65 Parameters
66 ----------
67 filename : `str`
68 The file to search through.
69 detectorId : `int`
70 The detector id to search for.
71
72 Returns
73 -------
74 index : `int`
75 The index of the HDU with the requested data.
76 metadata: `lsst.daf.base.PropertyList`
77 The metadata read from the header for that detector id.
78
79 Raises
80 ------
81 ValueError
82 Raised if detectorId is not found in any of the file HDUs
83 """
84 log = logging.getLogger("lsst.obs.decam.DarkEnergyCameraRawFormatter")
85 log.debug("Did not find detector=%s at expected HDU=%s in %s: scanning through all HDUs.",
86 detectorId, detector_to_hdu[detectorId], filename)
87
89 # NOTE: The primary header (HDU=0) does not contain detector data.
90 for i in range(1, fitsData.countHdus()):
91 fitsData.setHdu(i)
92 metadata = fitsData.readMetadata()
93 if metadata['CCDNUM'] == detectorId:
94 return i, metadata
95 else:
96 raise ValueError(f"Did not find detectorId={detectorId} as CCDNUM in any HDU of {filename}.")
97
◆ getDetector()
| lsst.obs.decam.rawFormatter.DarkEnergyCameraRawFormatter.getDetector | ( | self, | |
| id ) |
Definition at line 59 of file rawFormatter.py.
59 def getDetector(self, id):
60 return DarkEnergyCamera().getCamera()[id]
61
◆ readImage()
| lsst.obs.decam.rawFormatter.DarkEnergyCameraRawFormatter.readImage | ( | self | ) |
Reimplemented in lsst.obs.decam.rawFormatter.DarkEnergyCameraCPCalibFormatter.
Definition at line 138 of file rawFormatter.py.
138 def readImage(self):
139 index, metadata = self._determineHDU(self.dataId['detector'])
140 return lsst.afw.image.ImageI(self.fileDescriptor.location.path, index)
141
142
◆ readMetadata()
| lsst.obs.decam.rawFormatter.DarkEnergyCameraRawFormatter.readMetadata | ( | self | ) |
Definition at line 133 of file rawFormatter.py.
133 def readMetadata(self):
134 index, metadata = self._determineHDU(self.dataId['detector'])
135 astro_metadata_translator.fix_header(metadata)
136 return metadata
137
Member Data Documentation
◆ filterDefinitions
|
static |
Definition at line 52 of file rawFormatter.py.
◆ translatorClass
|
static |
Definition at line 51 of file rawFormatter.py.
◆ wcsFlipX
|
static |
Definition at line 57 of file rawFormatter.py.
The documentation for this class was generated from the following file:
- /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/obs_decam/gc120e1dc64+eee469a5e5/python/lsst/obs/decam/rawFormatter.py
