lsst.meas.astrom.createMatchMetadata Namespace Reference

Classes
class	MatchMetadata

Functions
def	createMatchMetadata

Variables
list	__all__ = ["MatchMetadata", "createMatchMetadata"]

Function Documentation

def lsst.meas.astrom.createMatchMetadata.createMatchMetadata	(		exposure,
			border = 0
	)

Create metadata required for unpersisting a match list

@param[in] exposure  exposure for which to create metadata
@param[in] border    number of pixels by which to grow the bbox in all directions

@return metadata about the field (a daf_base PropertyList)

Definition at line 30 of file createMatchMetadata.py.

def createMatchMetadata(exposure, border=0):
    """Create metadata required for unpersisting a match list

    @param[in] exposure  exposure for which to create metadata
    @param[in] border    number of pixels by which to grow the bbox in all directions

    @return metadata about the field (a daf_base PropertyList)
    """
    bboxd = Box2D(exposure.getBBox())
    bboxd.grow(border)
    wcs = getDistortedWcs(exposure.getInfo())
    ctrCoord = wcs.pixelToSky(bboxd.getCenter()).toIcrs()
    approxRadius = max(ctrCoord.angularSeparation(wcs.pixelToSky(pp).toIcrs()) for pp in bboxd.getCorners())
    return MatchMetadata(ctrCoord, approxRadius, exposure.getFilter().getName())

Variable Documentation

list lsst.meas.astrom.createMatchMetadata.__all__ = ["MatchMetadata", "createMatchMetadata"]

Definition at line 3 of file createMatchMetadata.py.