LSST Applications 27.0.0,g0265f82a02+469cd937ee,g02d81e74bb+21ad69e7e1,g1470d8bcf6+cbe83ee85a,g2079a07aa2+e67c6346a6,g212a7c68fe+04a9158687,g2305ad1205+94392ce272,g295015adf3+81dd352a9d,g2bbee38e9b+469cd937ee,g337abbeb29+469cd937ee,g3939d97d7f+72a9f7b576,g487adcacf7+71499e7cba,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+df404f777f,g5a732f18d5+be83d3ecdb,g64a986408d+21ad69e7e1,g858d7b2824+21ad69e7e1,g8a8a8dda67+a6fc98d2e7,g99cad8db69+f62e5b0af5,g9ddcbc5298+d4bad12328,ga1e77700b3+9c366c4306,ga8c6da7877+71e4819109,gb0e22166c9+25ba2f69a1,gb6a65358fc+469cd937ee,gbb8dafda3b+69d3c0e320,gc07e1c2157+a98bf949bb,gc120e1dc64+615ec43309,gc28159a63d+469cd937ee,gcf0d15dbbd+72a9f7b576,gdaeeff99f8+a38ce5ea23,ge6526c86ff+3a7c1ac5f1,ge79ae78c31+469cd937ee,gee10cc3b42+a6fc98d2e7,gf1cff7945b+21ad69e7e1,gfbcc870c63+9a11dc8c8f
LSST Data Management Base Package
|
Public Member Functions | |
getExecutionOrder (cls) | |
__init__ (self, config, name, schema, metadata) | |
None | measure (self, measRecord, exposure) |
None | fail (self, measRecord, error=None) |
Public Attributes | |
key | |
flag | |
Static Public Attributes | |
ConfigClass = SingleFrameMomentsClassifierConfig | |
Classify objects by comparing their moments-based trace radius to PSF's. The plugin computes chi^2 as ((T_obj - T_psf)/T_psf^exponent)^2, where T_obj is the sum of Ixx and Iyy moments of the object, and T_psf is the sum of Ixx and Iyy moments of the PSF. The exponent is configurable. The measure of being a galaxy is then 1 - exp(-0.5*chi^2). Parameters ---------- config : `MomentsClassifierConfig` Plugin configuration. name : `str` Plugin name. schema : `~lsst.afw.table.Schema` The schema for the measurement output catalog. New fields will be added to hold measurements produced by this plugin. metadata : `~lsst.daf.base.PropertySet` Plugin metadata that will be attached to the output catalog. Notes ----- The ``measure`` method of the plugin requires a value for the ``exposure`` argument to maintain consistent API, but it is not used in the measurement.
Definition at line 660 of file plugins.py.
lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.__init__ | ( | self, | |
config, | |||
name, | |||
schema, | |||
metadata ) |
Reimplemented from lsst.meas.base.sfm.SingleFramePlugin.
Definition at line 692 of file plugins.py.
None lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.fail | ( | self, | |
measRecord, | |||
error = None ) |
Record a failure of the `measure` or `measureN` method. Parameters ---------- measRecord : `lsst.afw.table.SourceRecord` Table record describing the source being measured. error : `MeasurementError`, optional Only provided if the measurement failed due to a `MeasurementError` being raised; otherwise, will be `None`. Notes ----- When the plugin raises an exception, framework will call `BasePlugin.fail` to allow the plugin to set its failure flag field(s). When `BasePlugin.measureN` raises an exception, `BasePlugin.fail` will be called repeatedly with all the records that were being measured. If the exception is an `MeasurementError`, it will be passed as the error argument; in all other cases the error argument will be `None`, and the failure will be logged by the measurement framework as a warning.
Reimplemented from lsst.meas.base.pluginsBase.BasePlugin.
Definition at line 721 of file plugins.py.
lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.getExecutionOrder | ( | cls | ) |
Get the relative execution order of this plugin. Must be reimplemented as a class method by concrete derived classes.
Reimplemented from lsst.meas.base.pluginsBase.BasePlugin.
Definition at line 689 of file plugins.py.
None lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.measure | ( | self, | |
measRecord, | |||
exposure ) |
Measure the properties of a source on a single image. The image may be from a single epoch, or it may be a coadd. Parameters ---------- measRecord : `lsst.afw.table.SourceRecord` Record describing the object being measured. Previously-measured quantities may be retrieved from here, and it will be updated in-place tih the outputs of this plugin. exposure : `lsst.afw.image.ExposureF` The pixel data to be measured, together with the associated PSF, WCS, etc. All other sources in the image should have been replaced by noise according to deblender outputs.
Reimplemented from lsst.meas.base.sfm.SingleFramePlugin.
Definition at line 700 of file plugins.py.
|
static |
Definition at line 686 of file plugins.py.
lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.flag |
Definition at line 698 of file plugins.py.
lsst.meas.base.plugins.SingleFrameMomentsClassifierPlugin.key |
Definition at line 694 of file plugins.py.