lsst.meas.base.tests.FluxTransformTestCase Class Reference

Inheritance diagram for lsst.meas.base.tests.FluxTransformTestCase:

Protected Member Functions
	_setFieldsInRecords (self, records, name)
	_compareFieldsInRecords (self, inSrc, outSrc, name)

Detailed Description

Definition at line 935 of file tests.py.

Member Function Documentation

_compareFieldsInRecords()

lsst.meas.base.tests.FluxTransformTestCase._compareFieldsInRecords ( self, inSrc, outSrc, name )

protected

Definition at line 946 of file tests.py.

    def _compareFieldsInRecords(self, inSrc, outSrc, name):
        instFluxName = inSrc.schema.join(name, 'instFlux')
        instFluxErrName = inSrc.schema.join(name, 'instFluxErr')
        if inSrc[instFluxName] > 0:
            mag = self.calexp.getPhotoCalib().instFluxToMagnitude(inSrc[instFluxName],
                                                                  inSrc[instFluxErrName])
            self.assertEqual(outSrc[outSrc.schema.join(name, 'mag')], mag.value)
            self.assertEqual(outSrc[outSrc.schema.join(name, 'magErr')], mag.error)
        else:
            # negative instFlux results in NaN magnitude, but can still have finite error
            self.assertTrue(np.isnan(outSrc[outSrc.schema.join(name, 'mag')]))
            if np.isnan(inSrc[instFluxErrName]):
                self.assertTrue(np.isnan(outSrc[outSrc.schema.join(name, 'magErr')]))
            else:
                mag = self.calexp.getPhotoCalib().instFluxToMagnitude(inSrc[instFluxName],
                                                                      inSrc[instFluxErrName])
                self.assertEqual(outSrc[outSrc.schema.join(name, 'magErr')], mag.error)
 
 

_setFieldsInRecords()

lsst.meas.base.tests.FluxTransformTestCase._setFieldsInRecords ( self, records, name )

protected

Definition at line 937 of file tests.py.

    def _setFieldsInRecords(self, records, name):
        for record in records:
            record[record.schema.join(name, 'instFlux')] = np.random.random()
            record[record.schema.join(name, 'instFluxErr')] = np.random.random()
 
        # Negative instFluxes should be converted to NaNs.
        assert len(records) > 1
        records[0][record.schema.join(name, 'instFlux')] = -1
 

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The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/meas_base/g212a7c68fe+04a9158687/python/lsst/meas/base/tests.py