lsst.obs.base  16.0-25-gaa04350
utils.py
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1 #
2 # LSST Data Management System
3 # Copyright 2017 AURA/LSST
4 #
5 # This product includes software developed by the
6 # LSST Project (http://www.lsst.org/).
7 #
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16 # GNU General Public License for more details.
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21 #
22 
23 import re
24 import lsst.afw.geom as afwGeom
25 
26 
27 def bboxFromIraf(irafBBoxStr):
28  """Return a Box2I corresponding to an IRAF-style BBOX
29 
30  [x0:x1,y0:y1] where x0 and x1 are the one-indexed start and end columns, and correspondingly
31  y0 and y1 are the start and end rows.
32  """
33 
34  mat = re.search(r"^\[([-\d]+):([-\d]+),([-\d]+):([-\d]+)\]$", irafBBoxStr)
35  if not mat:
36  raise RuntimeError("Unable to parse IRAF-style bbox \"%s\"" % irafBBoxStr)
37  x0, x1, y0, y1 = [int(_) for _ in mat.groups()]
38 
39  return afwGeom.BoxI(afwGeom.PointI(x0 - 1, y0 - 1), afwGeom.PointI(x1 - 1, y1 - 1))
def bboxFromIraf(irafBBoxStr)
Definition: utils.py:27