lsst.synpipe.showFootprints Namespace Reference

Functions
def	getMosaic (sources, exposure, idname)
def	main (root, visit, ccd, fakes=None, blends=False, listobj=16, filt=None)

Variables
	parser = argparse.ArgumentParser()
	help
	type
	int
	str
	default
	dest
	action
	False
	args = parser.parse_args()
	fakes
	fake
	listobj
	blends
	filt

Detailed Description

function to show a list of src footprints in a mosaic

Function Documentation

getMosaic()

def lsst.synpipe.showFootprints.getMosaic	(		sources,
			exposure,
			idname
	)

make a ds9 mosaic for the given source list from the given exposure

stolen from psfMosaic.py on the sphinx documentation

Definition at line 17 of file showFootprints.py.

def getMosaic(sources, exposure, idname):
    """
    make a ds9 mosaic for the given source list from the given exposure

    stolen from psfMosaic.py on the sphinx documentation
    """
    img = exposure.getMaskedImage().getImage()
    subImages = []
    labels = []
    for src in sources:
        footBBox = src.getFootprint().getBBox()
        subimg = lsst.afw.image.ImageF(img, footBBox,
                                       lsst.afw.image.PARENT, True)
        footMask = lsst.afw.image.ImageU(footBBox)
        src.getFootprint().insertIntoImage(footMask, 1, footBBox)
        subimg *= footMask.convertF()
        subImages.append(subimg)
        labels.append('ID=%s' % str(src.get(idname)))

    m = lsst.afw.display.utils.Mosaic()
    m.setGutter(2)
    m.setBackground(0)
    m.setMode("square")

    # create the mosaic
    for img in subImages:
        m.append(img)
    mosaic = m.makeMosaic()

    # display it with labels in ds9
    ds9.mtv(mosaic)
    m.drawLabels(labels)

main()

def lsst.synpipe.showFootprints.main	(		root,
			visit,
			ccd,
			fakes = None,
			blends = False,
			listobj = 16,
			filt = None
	)

Definition at line 51 of file showFootprints.py.

def main(root, visit, ccd, fakes=None, blends=False, listobj=16, filt=None):

    butler = lsst.daf.persistence.Butler(root)
    dataId = {'visit': visit,
              'ccd': int(ccd)} if filt is None else {'tract': visit,
                                                     'patch': ccd,
                                                     'filter': filt}

    if fakes is not None:
        src = matchFakes.getFakeSources(butler, dataId,
                                        extraCols=('zeropoint'),
                                        radecMatch=fakes)
    else:
        src = butler.get('src' if filt is None else 'deepCoadd-src', dataId)
    if not blends:
        src = [s for s in src if ((s.get('deblend.nchild') == 0) &
                                  (s.get('parent') == 0))]
    else:
        src = [s for s in src if (s.get('deblend.nchild') == 0)]

    exposure = butler.get('calexp' if filt is None else 'deepCoadd', dataId)

    if type(listobj) is int:
        listobj = numpy.random.choice(list(range(len(src))), listobj, False)

    srcList = [src[i] for i in listobj]

    getMosaic(srcList, exposure, 'fakeId' if fakes else 'id')

Variable Documentation

action

lsst.synpipe.showFootprints.action

Definition at line 93 of file showFootprints.py.

args

lsst.synpipe.showFootprints.args = parser.parse_args()

Definition at line 96 of file showFootprints.py.

blends

lsst.synpipe.showFootprints.blends

Definition at line 100 of file showFootprints.py.

default

lsst.synpipe.showFootprints.default

Definition at line 86 of file showFootprints.py.

dest

lsst.synpipe.showFootprints.dest

Definition at line 90 of file showFootprints.py.

fake

lsst.synpipe.showFootprints.fake

Definition at line 99 of file showFootprints.py.

fakes

lsst.synpipe.showFootprints.fakes

Definition at line 99 of file showFootprints.py.

False

lsst.synpipe.showFootprints.False

Definition at line 94 of file showFootprints.py.

filt

lsst.synpipe.showFootprints.filt

Definition at line 100 of file showFootprints.py.

help

lsst.synpipe.showFootprints.help

Definition at line 83 of file showFootprints.py.

int

lsst.synpipe.showFootprints.int

Definition at line 84 of file showFootprints.py.

listobj

lsst.synpipe.showFootprints.listobj

Definition at line 99 of file showFootprints.py.

parser

lsst.synpipe.showFootprints.parser = argparse.ArgumentParser()

Definition at line 82 of file showFootprints.py.

str

lsst.synpipe.showFootprints.str

Definition at line 85 of file showFootprints.py.

type

lsst.synpipe.showFootprints.type

Definition at line 84 of file showFootprints.py.