utils.py

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#
# This file is part of meas_extensions_trailedSources.
#
# 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,
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
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#
 
# Common functions for trail measurements
__all__ = ("getMeasurementCutout")
 
 
def getMeasurementCutout(measRecord, exposure):
    """Get a subImage cutout for a trail measurement.
 
    Re-implements meas::base::SdssShape::computeAdaptiveMomentsBBox
    """
    bbox = measRecord.getFootprint().getBBox()
    bbox.clip(exposure.getBBox())
    cutout = exposure.Factory(exposure, bbox)
    return cutout