lsst.ap.utils.mapperUtils Namespace Reference

Functions
def	makeMapper
def	getFilterNames

Variables
list	__all__ = ["makeMapper", "getFilterNames"]
dictionary	_mapper

Function Documentation

def lsst.ap.utils.mapperUtils.getFilterNames

(

)

Return a list of filter names in increasing ID order. This assumes
that an lsst.daf.persistence.Mapper which sets up filter definitions
has been created, or that filters have been manually defined with e.g.
lsst.afw.image.utils.defineFilter().

Definition at line 54 of file mapperUtils.py.

def getFilterNames():
    """Return a list of filter names in increasing ID order. This assumes
    that an lsst.daf.persistence.Mapper which sets up filter definitions
    has been created, or that filters have been manually defined with e.g.
    lsst.afw.image.utils.defineFilter().
    """
    names = list(Filter.getNames())
    names.sort(key=lambda name: Filter(name, False).getId())
    return names

def lsst.ap.utils.mapperUtils.makeMapper

(

camera

)

Return an instance of the lsst.daf.persistence.Mapper class
to use for the camera of the given (case-insensitive) name.

Definition at line 38 of file mapperUtils.py.

def makeMapper(camera):
    """Return an instance of the lsst.daf.persistence.Mapper class
    to use for the camera of the given (case-insensitive) name.
    """
    camera = camera.lower()
    if camera not in _mapper:
        raise RuntimeError(str.format("{} is not a valid camera name", camera))
    name = _mapper[camera]
    try:
        pieces = name.split('.')
        cls = reduce(getattr, pieces[1:], __import__('.'.join(pieces[:-1])))
        mapper = cls()
    except:
        raise RuntimeError(str.format("Failed to construct a {} mapper", name))
    return mapper