23"""Select sources that have an existing flag field set."""
26import lsst.pipe.base
as pipeBase
28from .sourceSelector
import BaseSourceSelectorTask, sourceSelectorRegistry
30__all__ = [
"FlaggedSourceSelectorConfig",
"FlaggedSourceSelectorTask"]
34 field = lsst.pex.config.Field(
35 dtype=str, default=
"calib_psf_used",
36 doc=
"Name of a flag field that is True for Sources that should be used.",
40@lsst.pex.config.registerConfigurable("flagged", sourceSelectorRegistry)
43 A trivial SourceSelector that simply uses an existing flag field to filter
46 This is most frequently used
in steps that occur after the a PSF model has
47 been built, to allow other procedures that need Sources to use the set of
48 Sources used to determine the PSF.
53 A boolean variable specify
if the inherited source selector uses
57 ConfigClass = FlaggedSourceSelectorConfig
58 _DefaultName = "flagged"
61 """Return a bool array representing which sources to select from
64 The input catalog must be contiguous in memory.
69 Catalog of sources to select
from.
71 Ignored
in this SourceSelector.
73 The exposure the catalog was built
from; used
for debug display.
77 struct : `lsst.pipe.base.Struct`
78 The struct contains the following data:
80 - selected : `array` of `bool`
81 Boolean array of sources that were selected, same length
as
84 key = sourceCat.schema.find(self.config.field).key
85 return pipeBase.Struct(selected=sourceCat.get(key))
def selectSources(self, sourceCat, matches=None, exposure=None)