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# This file is part of obs_subaru. 

# 

# Developed for the LSST Data Management System. 

# This product includes software developed by the LSST Project 

# (http://www.lsst.org). 

# See the COPYRIGHT file at the top-level directory of this distribution 

# for details of code ownership. 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the GNU General Public License 

# along with this program. If not, see <http://www.gnu.org/licenses/>. 

 

from lsst.afw.image import ImageU, bboxFromMetadata 

from lsst.afw.geom import makeSkyWcs, makeFlippedWcs 

from lsst.afw.math import flipImage 

from lsst.geom import Point2D 

from lsst.obs.base.fitsRawFormatterBase import FitsRawFormatterBase 

from astro_metadata_translator import HscTranslator 

 

from ....hsc.hscFilters import HSC_FILTER_DEFINITIONS 

from . import HyperSuprimeCam 

 

__all__ = ("HyperSuprimeCamRawFormatter", "HyperSuprimeCamCornerRawFormatter") 

 

 

class HyperSuprimeCamRawFormatter(FitsRawFormatterBase): 

"""Gen3 Butler Formatters for HSC raw data. 

""" 

 

FLIP_LR = True 

FLIP_TB = False 

translatorClass = HscTranslator 

filterDefinitions = HSC_FILTER_DEFINITIONS 

 

def getDetector(self, id): 

return HyperSuprimeCam().getCamera()[id] 

 

def _createSkyWcsFromMetadata(self): 

# We need to know which direction the chip is "flipped" in order to 

# make a sensible WCS from the header metadata. 

wcs = makeSkyWcs(self.metadata, strip=True) 

dimensions = bboxFromMetadata(self.metadata).getDimensions() 

center = Point2D(dimensions/2.0) 

return makeFlippedWcs(wcs, self.FLIP_LR, self.FLIP_TB, center) 

 

def readImage(self): 

if self.fileDescriptor.parameters: 

# It looks like the Gen2 std_raw code wouldn't have handled 

# flipping vs. subimages correctly, so we won't bother to either. 

# But we'll make sure no one tries to get a subimage, rather than 

# doing something confusing. 

raise NotImplementedError("Formatter does not support subimages.") 

image = ImageU(self.fileDescriptor.location.path) 

return flipImage(image, self.FLIP_LR, self.FLIP_TB) 

 

 

class HyperSuprimeCamCornerRawFormatter(HyperSuprimeCamRawFormatter): 

 

FLIP_LR = False 

FLIP_TB = True