_mask.py

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# This file is part of afw.
#
# Developed for the LSST Data Management System.
# This product includes software developed by the LSST Project
# (https://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 <https://www.gnu.org/licenses/>.
 
__all__ = ["Mask", "MaskPixel"]
 
import numpy as np
 
from lsst.utils import TemplateMeta
from ._fitsIoWithOptions import imageReadFitsWithOptions, imageWriteFitsWithOptions
from ._imageLib import MaskX
from ._slicing import supportSlicing
from ._disableArithmetic import disableMaskArithmetic
 
MaskPixel = np.int32
 
 
class Mask(metaclass=TemplateMeta):
    TEMPLATE_PARAMS = ("dtype",)
    TEMPLATE_DEFAULTS = (MaskPixel,)
 
    def __reduce__(self):
        from lsst.afw.fits import reduceToFits
        return reduceToFits(self)
 
    def __str__(self):
        return "{}, bbox={}, maskPlaneDict={}".format(self.array, self.getBBox(), self.getMaskPlaneDict())
 
    def __repr__(self):
        return "{}.{}={}".format(self.__module__, self.__class__.__name__, str(self))
 
    readFitsWithOptions = classmethod(imageReadFitsWithOptions)
 
    writeFitsWithOptions = imageWriteFitsWithOptions
 
 
Mask.register(MaskPixel, MaskX)
Mask.alias("X", MaskX)
 
for cls in (MaskX, ):
    supportSlicing(cls)
    disableMaskArithmetic(cls)