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DM-50420: Inject variable sources into the template and science images #461

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DM-50420: Inject variable sources into the template and science images #461

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29f868a
Add visit information to templates useful for template fake injection
BrunoSanchez May 19, 2026
af3be54
Pass visit id directly to GetTemplateTask.run
isullivan Jun 5, 2026
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12 changes: 10 additions & 2 deletions python/lsst/ip/diffim/getTemplate.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
import lsst.afw.image as afwImage
import lsst.geom as geom
import lsst.afw.geom as afwGeom
from lsst.afw.image import VisitInfo
import lsst.afw.table as afwTable
from lsst.afw.math._warper import computeWarpedBBox
import lsst.afw.math as afwMath
Expand Down Expand Up @@ -186,6 +187,7 @@ def runQuantum(self, butlerQC, inputRefs, outputRefs):
wcs=wcs,
dataIds=results.dataIds,
physical_filter=physical_filter,
visit=outputRefs.template.dataId["visit"],
)
butlerQC.put(outputs, outputRefs)

Expand Down Expand Up @@ -276,7 +278,7 @@ def getExposures(self, coaddExposureHandles, bbox, skymap, wcs):
return pipeBase.Struct(coaddExposures=coaddExposures, dataIds=dataIds)

@timeMethod
def run(self, *, coaddExposureHandles, bbox, wcs, dataIds, physical_filter):
def run(self, *, coaddExposureHandles, bbox, wcs, dataIds, physical_filter, visit=None):
"""Warp coadds from multiple tracts and patches to form a template to
subtract from a science image.

Expand Down Expand Up @@ -304,6 +306,10 @@ def run(self, *, coaddExposureHandles, bbox, wcs, dataIds, physical_filter):
tract id.
physical_filter : `str`
Physical filter of the science image.
visit : `int`, optional
If supplied, over-write the visit ID in the template's visitInfo
so that downstream source injection tasks can link the template and
science image for the visit.

Returns
-------
Expand Down Expand Up @@ -383,9 +389,11 @@ def run(self, *, coaddExposureHandles, bbox, wcs, dataIds, physical_filter):

# Set a mask plane for any regions with exceptionally high variance.
self.checkHighVariance(template)
template.setPsf(self._makePsf(template, catalog, wcs))
if visit is not None:
template.getInfo().setVisitInfo(VisitInfo(id=visit))
template.setFilter(afwImage.FilterLabel(band, physical_filter))
template.setPhotoCalib(photoCalib)
template.setPsf(self._makePsf(template, catalog, wcs))
return pipeBase.Struct(template=template)

def checkHighVariance(self, template):
Expand Down
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