lsst.obs.base.utils Namespace Reference

Functions
def	bboxFromIraf (irafBBoxStr)

Function Documentation

bboxFromIraf()

def lsst.obs.base.utils.bboxFromIraf

(

irafBBoxStr

)

Return a Box2I corresponding to an IRAF-style BBOX

[x0:x1,y0:y1] where x0 and x1 are the one-indexed start and end columns, and correspondingly
y0 and y1 are the start and end rows.

Definition at line 27 of file utils.py.

def bboxFromIraf(irafBBoxStr):
    """Return a Box2I corresponding to an IRAF-style BBOX

    [x0:x1,y0:y1] where x0 and x1 are the one-indexed start and end columns, and correspondingly
    y0 and y1 are the start and end rows.
    """

    mat = re.search(r"^\[([-\d]+):([-\d]+),([-\d]+):([-\d]+)\]$", irafBBoxStr)
    if not mat:
        raise RuntimeError("Unable to parse IRAF-style bbox \"%s\"" % irafBBoxStr)
    x0, x1, y0, y1 = [int(_) for _ in mat.groups()]

    return afwGeom.BoxI(afwGeom.PointI(x0 - 1, y0 - 1), afwGeom.PointI(x1 - 1, y1 - 1))

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