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lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig Class Reference
Inheritance diagram for lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig:
Public Member Functions | |
| setDefaults (self) | |
| validate (self) | |
Public Attributes | |
| int | stampSize = 27 |
Member Data Documentation
◆ color
|
static |
Initial value:
= pexConfig.DictField(
doc="The bands to use for calculating color."
"Ignored if piffPsfConfigYaml is set.",
default={},
keytype=str,
itemtype=str,
)
◆ colorOrder
|
static |
Initial value:
= pexConfig.Field[int](
doc="Color order for PSF kernel creation. Only pure color terms are "
"fitted; cross terms between color and spatial coordinates are "
"not included. Ignored if piffPsfConfigYaml is set.",
default=1,
)
◆ debugStarData
|
static |
Initial value:
= pexConfig.Field[bool](
doc="Include star images used for fitting in PSF model object.",
default=False
)
◆ interpolant
|
static |
Initial value:
= pexConfig.Field[str](
doc="GalSim interpolant name for Piff to use. "
"Options include 'Lanczos(N)', where N is an integer, along with "
"galsim.Cubic, galsim.Delta, galsim.Linear, galsim.Nearest, "
"galsim.Quintic, and galsim.SincInterpolant. Ignored if "
"piffPsfConfigYaml is set.",
check=_validateGalsimInterpolant,
default="Lanczos(11)",
)
◆ maxSNR
|
static |
Initial value:
= pexConfig.Field[float](
doc="Rescale the weight of bright stars such that their SNR is less "
"than this value.",
default=200.0
)
◆ minimumUnmaskedFraction
|
static |
Initial value:
= pexConfig.Field[float](
doc="Minimum fraction of unmasked pixels required to use star.",
default=0.5
)
◆ modelSize
|
static |
Initial value:
= pexConfig.Field[int](
doc="Internal model size for PIFF (typically odd, but not enforced). "
"Partially ignored if piffPsfConfigYaml is set.",
default=25,
)
◆ outlierMaxRemove
|
static |
Initial value:
= pexConfig.Field[float](
doc="Max fraction of stars to remove as outliers each iteration. "
"Ignored if piffPsfConfigYaml is set.",
default=0.05
)
◆ outlierNSigma
|
static |
Initial value:
= pexConfig.Field[float](
doc="n sigma for chisq outlier rejection. "
"Ignored if piffPsfConfigYaml is set.",
default=4.0
)
◆ piffBasisPolynomialSolver
|
static |
Initial value:
= pexConfig.ChoiceField[str](
doc="Solver to solve linear algebra for "
"the spatial interpolation of the PSF. "
"Ignore if piffPsfConfigYaml is not None.",
allowed=dict(
scipy="Default solver using scipy.",
cpp="C++ solver using eigen.",
jax="JAX solver.",
qr="QR decomposition using scipy/numpy.",
),
default="scipy",
)
◆ piffLoggingLevel
|
static |
Initial value:
= pexConfig.RangeField[int](
doc="PIFF-specific logging level, from 0 (least chatty) to 3 (very verbose); "
"note that logs will come out with unrelated notations (e.g. WARNING does "
"not imply a warning.)",
default=0,
min=0,
max=3,
)
◆ piffMaxIter
|
static |
Initial value:
= pexConfig.Field[int](
doc="Maximum iteration while doing outlier rejection."
"Might be overwrite if zerothOrderInterpNotEnoughStars is True and "
"ignore if piffPsfConfigYaml is not None.",
default=15
)
◆ piffPixelGridFitCenter
|
static |
Initial value:
= pexConfig.Field[bool](
doc="PixelGrid can re-estimate center if this option is True. "
"Will use provided centroid if set to False. Default in Piff "
"is set to True. Depends on how input centroids can be trust. "
"Ignore if piffPsfConfigYaml is not None.",
default=True
)
◆ piffPsfConfigYaml
|
static |
Initial value:
= pexConfig.Field[str](
doc="Configuration file for PIFF in YAML format. This overrides many "
"other settings in this config and is not validated ahead of runtime.",
default=None,
optional=True,
)
◆ samplingSize
|
static |
Initial value:
= pexConfig.Field[float](
doc="Resolution of the internal PSF model relative to the pixel size; "
"e.g. 0.5 is equal to 2x oversampling. This affects only the size of "
"the PSF model stamp if piffPsfConfigYaml is set.",
default=1,
)
◆ spatialOrder
|
static |
Initial value:
= pexConfig.Field[int](
doc="Spatial order for PSF kernel creation. "
"Ignored if piffPsfConfigYaml is set or if the current "
"band is in the spatialOrderPerBand dict config.",
default=2,
)
◆ spatialOrderPerBand
|
static |
Initial value:
= pexConfig.DictField(
doc="Per-band spatial order for PSF kernel creation. "
"Ignored if piffPsfConfigYaml is set.",
keytype=str,
itemtype=int,
default={},
)
◆ useColor
|
static |
Initial value:
= pexConfig.Field[bool](
doc="Use color information to correct for amtospheric turbulences and "
"differential chromatic refraction."
"Ignored if piffPsfConfigYaml is set.",
default=False,
)
◆ useCoordinates
|
static |
Initial value:
= pexConfig.ChoiceField[str](
doc="Which spatial coordinates to regress against in PSF modeling.",
allowed=dict(
pixel='Regress against pixel coordinates',
field='Regress against field angles',
sky='Regress against RA/Dec'
),
default='pixel'
)
◆ zerothOrderInterpNotEnoughStars
|
static |
Initial value:
= pexConfig.Field[bool](
doc="If True, use zeroth order interpolation if not enough stars are found.",
default=False
)
◆ zeroWeightMaskBits
|
static |
Initial value:
= pexConfig.ListField[str](
doc="List of mask bits for which to set pixel weights to zero.",
default=['BAD', 'CR', 'INTRP', 'SAT', 'SUSPECT', 'NO_DATA']
)
The documentation for this class was generated from the following file:
- python/lsst/meas/extensions/piff/piffPsfDeterminer.py
