lsst.meas.algorithms.defects Namespace Reference

Functions
def	policyToBadRegionList

Function Documentation

def lsst.meas.algorithms.defects.policyToBadRegionList

(

policyFile

)

Given a Policy file describing a CCD's bad pixels, return a vector of BadRegion::Ptr

Definition at line 30 of file defects.py.

def policyToBadRegionList(policyFile):
    """Given a Policy file describing a CCD's bad pixels, return a vector of BadRegion::Ptr""" 

    badPixelsPolicy = policy.Policy.createPolicy(policyFile)
    badPixels = algorithmsLib.DefectListT()

    if badPixelsPolicy.exists("Defects"):
        d = badPixelsPolicy.getArray("Defects")
        for reg in d:
            x0 = reg.get("x0")
            width = reg.get("width")
            if not width:
                x1 = reg.get("x1")
                width = x1 - x0 - 1
    
            y0 = reg.get("y0")
            if reg.exists("height"):
                height = reg.get("height")
            else:
                y1 = reg.get("y1")
                height = y1 - y0 - 1
    
            bbox = afwGeom.BoxI(afwGeom.PointI(x0, y0), afwGeom.ExtentI(width, height))
            badPixels.push_back(algorithmsLib.Defect(bbox))
    
    del badPixelsPolicy

    return badPixels