lsst.meas.base¶
lsst.meas.base provides core astronomical measurement algorithms and base classes.
Using lsst.meas.base¶
Contributing¶
lsst.meas.base is developed at https://github.com/lsst/meas_base.
You can find Jira issues for this module under the meas_base component.
Task reference¶
Command-line tasks¶
- ForcedPhotCcdTask
- A command-line driver for performing forced measurement on CCD images.
- ForcedPhotCoaddTask
- A command-line driver for performing forced measurement on coadd images.
- ForcedPhotImageTask
- A base class for command-line forced measurement drivers.
Tasks¶
- ApplyApCorrTask
- Apply aperture corrections.
- BaseMeasurementTask
- Ultimate base class for all measurement tasks.
- BaseReferencesTask
- Base class for forced photometry subtask that fetches reference sources.
- CatalogCalculationTask
- Run plugins which operate on a catalog of sources.
- CoaddSrcReferencesTask
- Select reference sources by loading the “coadd source” dataset directly.
- ForcedMeasurementTask
- Measure sources on an image, constrained by a reference catalog.
- MultiBandReferencesTask
- Loads references from the multi-band processing scheme.
- SingleFrameMeasurementTask
- A subtask for measuring the properties of sources on a single exposure.
Configs¶
- BaseMeasurementPluginConfig
- Base config class for all measurement plugins.
- BasePluginConfig
- Base class measurement plugin config classes.
- CatalogCalculationClassificationConfig
- Configuration for catalog classification plugin.
- CatalogCalculationFootprintAreaConfig
- Configuration for footprint area catalog calculation plugin.
- CatalogCalculationPluginConfig
- Default configuration class for catalog calcuation plugins.
- ForcedPluginConfig
- Base class for configs of forced measurement plugins.
- NoiseReplacerConfig
- Noise replacement configuration.
- SingleFramePluginConfig
- Base class for single-frame plugin configuration classes.
- SourceSlotConfig
- Assign named plugins to measurement slots.
Python API reference¶
lsst.meas.base Package¶
Functions¶
addApCorrName(name) |
Register an instrumental flux field name prefix for aperture correction. |
generateAlgorithmName(AlgClass) |
Generate a name for an algorithm. |
getApCorrNameSet() |
Get a copy of the field name prefixes which will be aperture corrected. |
imageOverlapsTract(tract, imageWcs, imageBox) |
Return whether the given bounding box overlaps the tract given a WCS. |
makeShapeTransformMatrix(xform) |
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register(name[, shouldApCorr, apCorrList]) |
A decorator to register a plugin class in its base class’s registry. |
wrapAlgorithm(Base, AlgClass, factory, …) |
Wrap a C++ algorithm class to create a measurement plugin. |
wrapAlgorithmControl(Base, Control[, …]) |
Wrap a C++ algorithm’s control class into a Python config class. |
wrapForcedAlgorithm(AlgClass, executionOrder) |
Expose a C++ ForcedAlgorithm class as a measurement plugin. |
wrapSimpleAlgorithm(AlgClass, executionOrder) |
Expose a C++ SimpleAlgorithm class as a measurement plugin. |
wrapSingleFrameAlgorithm(AlgClass, …[, …]) |
Expose a C++ SingleFrameAlgorithm class as a measurement plugin. |
wrapTransform(transformClass[, hasLogName]) |
Modify a C++ transform to accept either a Config or a Control. |
Classes¶
ApertureFluxAlgorithm |
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ApertureFluxControl |
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ApertureFluxResult |
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ApertureFluxTransform(ctrl, name, mapper[, …]) |
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ApplyApCorrConfig |
Aperture correction configuration. |
ApplyApCorrTask(schema, **kwds) |
Apply aperture corrections. |
BaseAlgorithm |
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BaseMeasurementConfig |
Base configuration for all measurement driver tasks. |
BaseMeasurementPlugin(config, name[, logName]) |
Base class for all measurement plugins. |
BaseMeasurementPluginConfig |
Base config class for all measurement plugins. |
BaseMeasurementTask([algMetadata]) |
Ultimate base class for all measurement tasks. |
BasePlugin(config, name[, logName]) |
Base class for measurement plugins. |
BasePluginConfig |
Base class measurement plugin config classes. |
BaseReferencesTask([butler, schema]) |
Base class for forced photometry subtask that fetches reference sources. |
BaseTransform |
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BlendednessAlgorithm |
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BlendednessControl |
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CatalogCalculationClassificationConfig |
Configuration for catalog classification plugin. |
CatalogCalculationClassificationPlugin(…) |
Plugin which calculates a binary measure of source extendedness. |
CatalogCalculationConfig |
Config class for the catalog calculation driver task. |
CatalogCalculationFootprintAreaConfig |
Configuration for footprint area catalog calculation plugin. |
CatalogCalculationFootprintAreaPlugin(…) |
Catalog calculation plugin to record the area of a source’s footprint. |
CatalogCalculationPlugin(config, name, …) |
Base class for catalog calculation plugins. |
CatalogCalculationPluginConfig |
Default configuration class for catalog calcuation plugins. |
CatalogCalculationTask(schema[, plugMetadata]) |
Run plugins which operate on a catalog of sources. |
CentroidChecker |
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CentroidResult |
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CentroidResultKey |
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CentroidTransform |
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CircularApertureFluxAlgorithm |
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CoaddSrcReferencesTask([butler, schema]) |
Select reference sources by loading the “coadd source” dataset directly. |
DummyNoiseReplacer |
A noise replacer which does nothing. |
FlagDefinition |
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FlagDefinitionList |
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FlagHandler |
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FluxResult |
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FluxResultKey |
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ForcedInputCountPlugin |
alias of lsst.meas.base.wrappers.GenericPlugin.makeForcedPlugin.<locals>.ForcedFromGenericPlugin |
ForcedMeasurementConfig |
Config class for forced measurement driver task. |
ForcedMeasurementTask(refSchema[, algMetadata]) |
Measure sources on an image, constrained by a reference catalog. |
ForcedPeakCentroidConfig |
Configuration for the forced peak centroid algorithm. |
ForcedPeakCentroidPlugin(config, name, …) |
Record the highest peak in a source footprint as its centroid. |
ForcedPhotCcdConfig |
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ForcedPhotCcdTask([butler, refSchema]) |
A command-line driver for performing forced measurement on CCD images. |
ForcedPhotCoaddConfig |
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ForcedPhotCoaddTask([butler, refSchema]) |
A command-line driver for performing forced measurement on coadd images. |
ForcedPhotImageConfig |
Config class for forced measurement driver task. |
ForcedPhotImageTask([butler, refSchema]) |
A base class for command-line forced measurement drivers. |
ForcedPlugin(config, name, schemaMapper, …) |
Base class for forced measurement plugins. |
ForcedPluginConfig |
Base class for configs of forced measurement plugins. |
ForcedTransformedCentroidConfig |
Configuration for the forced transformed centroid algorithm. |
ForcedTransformedCentroidPlugin(config, …) |
Record the transformation of the reference catalog centroid. |
ForcedTransformedShapeConfig |
Configuration for the forced transformed shape algorithm. |
ForcedTransformedShapePlugin(config, name, …) |
Record the transformation of the reference catalog shape. |
ForcedVariancePlugin |
alias of lsst.meas.base.wrappers.GenericPlugin.makeForcedPlugin.<locals>.ForcedFromGenericPlugin |
GaussianFluxAlgorithm |
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GaussianFluxControl |
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GaussianFluxTransform(ctrl, name, mapper[, …]) |
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GenericPlugin(config, name, schema, metadata) |
Abstract base class for a generic plugin. |
InputCountConfig |
Configuration for the input image counting plugin. |
LocalBackgroundAlgorithm |
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LocalBackgroundControl |
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LocalBackgroundTransform(ctrl, name, mapper) |
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MagResult |
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MagResultKey |
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MeasurementTransform(config, name, mapper) |
Base class for measurement transformations. |
NaiveCentroidAlgorithm |
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NaiveCentroidControl |
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NaiveCentroidTransform(ctrl, name, mapper[, …]) |
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NoiseReplacer(config, exposure, footprints) |
Replace sources with noise during measurement. |
NoiseReplacerConfig |
Noise replacement configuration. |
NullTransform(config, name, mapper) |
Null transform which transfers no data from input to output. |
PassThroughTransform(config, name, mapper) |
Copy fields from input to output without transformation. |
PeakLikelihoodFluxAlgorithm |
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PeakLikelihoodFluxControl |
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PeakLikelihoodFluxTransform(ctrl, name, mapper) |
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PerTractCcdDataIdContainer([level]) |
A data ID container which combines raw data IDs with a tract. |
PixelFlagsAlgorithm |
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PixelFlagsControl |
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PluginMap |
Map of plugins to be run for a given task. |
PluginRegistry([configBaseType]) |
Base class for plugin registries. |
PsfFluxAlgorithm |
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PsfFluxControl |
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PsfFluxTransform(ctrl, name, mapper[, logName]) |
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SafeCentroidExtractor |
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ScaledApertureFluxAlgorithm |
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ScaledApertureFluxControl |
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ScaledApertureFluxTransform(ctrl, name, mapper) |
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SdssCentroidAlgorithm |
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SdssCentroidControl |
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SdssCentroidTransform(ctrl, name, mapper[, …]) |
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SdssShapeAlgorithm |
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SdssShapeControl |
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SdssShapeResult |
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SdssShapeResultKey |
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SdssShapeTransform(ctrl, name, mapper[, logName]) |
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ShapeResult |
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ShapeResultKey |
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SimpleAlgorithm |
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SimpleCentroidTransform(config, name, mapper) |
Transform pixel centroid, without uncertainty, to celestial coordinates. |
SincCoeffsD |
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SincCoeffsF |
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SingleFrameAlgorithm |
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SingleFrameFPPositionConfig |
Configuration for the focal plane position measurment algorithm. |
SingleFrameFPPositionPlugin(config, name, …) |
Algorithm to calculate the position of a centroid on the focal plane. |
SingleFrameInputCountPlugin |
alias of lsst.meas.base.wrappers.GenericPlugin.makeSingleFramePlugin.<locals>.SingleFrameFromGenericPlugin |
SingleFrameJacobianConfig |
Configuration for the Jacobian calculation plugin. |
SingleFrameJacobianPlugin(config, name, …) |
Compute the Jacobian and its ratio with a nominal pixel area. |
SingleFrameMeasurementConfig |
Config class for single frame measurement driver task. |
SingleFrameMeasurementTask(schema[, algMetadata]) |
A subtask for measuring the properties of sources on a single exposure. |
SingleFramePeakCentroidConfig |
Configuration for the single frame peak centroiding algorithm. |
SingleFramePeakCentroidPlugin(config, name, …) |
Record the highest peak in a source footprint as its centroid. |
SingleFramePlugin(config, name, schema, metadata) |
Base class for single-frame measurement plugin. |
SingleFramePluginConfig |
Base class for single-frame plugin configuration classes. |
SingleFrameSkyCoordConfig |
Configuration for the sky coordinates algorithm. |
SingleFrameSkyCoordPlugin(config, name, …) |
Record the sky position of an object based on its centroid slot and WCS. |
SingleFrameVariancePlugin |
alias of lsst.meas.base.wrappers.GenericPlugin.makeSingleFramePlugin.<locals>.SingleFrameFromGenericPlugin |
VarianceConfig |
Configuration for the variance calculation plugin. |