WcsSelectImagesTask

class lsst.pipe.tasks.selectImages.WcsSelectImagesTask(config: Config | None = None, *, name: str | None = None, parentTask: Task | None = None, log: logging.Logger | lsst.utils.logging.LsstLogAdapter | None = None)

Bases: BaseSelectImagesTask

Select images using their Wcs.

We use the “convexHull” method of lsst.sphgeom.ConvexPolygon to define polygons on the celestial sphere, and test the polygon of the patch for overlap with the polygon of the image.

We use “convexHull” instead of generating a ConvexPolygon directly because the standard for the inputs to ConvexPolygon are pretty high and we don’t want to be responsible for reaching them.

Methods Summary

getValidImageCorners(imageWcs, imageBox, ...)	Return corners or None if bad.
run(wcsList, bboxList, coordList[, dataIds])	Return indices of provided lists that meet the selection criteria.

Methods Documentation

getValidImageCorners(imageWcs, imageBox, patchPoly, dataId=None)

Return corners or None if bad.

Parameters

imageWcs : Unknown imageBox : Unknown patchPoly : Unknown dataId : Unknown

run(wcsList, bboxList, coordList, dataIds=None, **kwargs)

Return indices of provided lists that meet the selection criteria.

Parameters

wcsListlist [lsst.afw.geom.SkyWcs]

Specifying the WCS’s of the input ccds to be selected.

bboxListlist [lsst.geom.Box2I]

Specifying the bounding boxes of the input ccds to be selected.

coordListlist [lsst.geom.SpherePoint]

ICRS coordinates specifying boundary of the patch.

dataIdsiterable [lsst.daf.butler.dataId] or None, optional

An iterable object of dataIds which point to reference catalogs.

**kwargs

Additional keyword arguments.

Returns

resultlist [int]

The indices of selected ccds.