StitchedPsf#

class lsst.cell_coadds.StitchedPsf(images: GridContainer[ImageD], grid: UniformGrid)#

Bases: ImagePsf

A piecewise PSF implementation backed by a 2-d grid of images.

Attributes Summary

`grid`	The grid on which the images are placed.
`images`	The images that make up this PSF.

Methods Summary

`clone`()	Return a deep copy of this object.
`getAveragePosition`()	Get a position where PSF can be evaluated on a patch.
`isPersistable`(self)
`readFits`(name)	Persist the PSF as a FITS file.
`resized`(self, width, height)
`writeFits`(name)	Persist the PSF as a FITS file.

Attributes Documentation

grid#: The grid on which the images are placed.

images#: The images that make up this PSF.

Methods Documentation

clone() → StitchedPsf#: Return a deep copy of this object.

getAveragePosition() → Point2D#

Get a position where PSF can be evaluated on a patch.

This defaults to the center of the patch bounding box, unless there are no inputs there. In that case, it switches to find an arbitrary cell, typically at a corner that has inputs and returns the center position of the cell.

static isPersistable(self: lsst.afw.table.io.Persistable) → bool#

readFits(name: str) → None#: Persist the PSF as a FITS file.

resized(self: lsst.afw.detection.Psf, width: SupportsInt, height: SupportsInt) → lsst.afw.detection.Psf#

writeFits(name: str) → None#: Persist the PSF as a FITS file.