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# This file is part of daf_butler. 

# 

# Developed for the LSST Data Management System. 

# This product includes software developed by the LSST Project 

# (http://www.lsst.org). 

# See the COPYRIGHT file at the top-level directory of this distribution 

# for details of code ownership. 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the GNU General Public License 

# along with this program. If not, see <http://www.gnu.org/licenses/>. 

 

import os 

from lsst.daf.butler import DatasetType, DatasetRef 

 

 

class FitsCatalogDatasetsHelper: 

 

def makeExampleCatalog(self): 

import lsst.afw.table 

catalogPath = os.path.join(self.testDir, "data", "basic", "source_catalog.fits") 

return lsst.afw.table.SourceCatalog.readFits(catalogPath) 

 

def assertCatalogEqual(self, inputCatalog, outputCatalog): 

import lsst.afw.table 

self.assertIsInstance(outputCatalog, lsst.afw.table.SourceCatalog) 

inputTable = inputCatalog.getTable() 

inputRecord = inputCatalog[0] 

outputTable = outputCatalog.getTable() 

outputRecord = outputCatalog[0] 

self.assertEqual(inputTable.getPsfFluxDefinition(), outputTable.getPsfFluxDefinition()) 

self.assertEqual(inputRecord.getPsfFlux(), outputRecord.getPsfFlux()) 

self.assertEqual(inputRecord.getPsfFluxFlag(), outputRecord.getPsfFluxFlag()) 

self.assertEqual(inputTable.getCentroidDefinition(), outputTable.getCentroidDefinition()) 

self.assertEqual(inputRecord.getCentroid(), outputRecord.getCentroid()) 

self.assertFloatsAlmostEqual( 

inputRecord.getCentroidErr()[0, 0], 

outputRecord.getCentroidErr()[0, 0], rtol=1e-6) 

self.assertFloatsAlmostEqual( 

inputRecord.getCentroidErr()[1, 1], 

outputRecord.getCentroidErr()[1, 1], rtol=1e-6) 

self.assertEqual(inputTable.getShapeDefinition(), outputTable.getShapeDefinition()) 

self.assertFloatsAlmostEqual( 

inputRecord.getShapeErr()[0, 0], 

outputRecord.getShapeErr()[0, 0], rtol=1e-6) 

self.assertFloatsAlmostEqual( 

inputRecord.getShapeErr()[1, 1], 

outputRecord.getShapeErr()[1, 1], rtol=1e-6) 

self.assertFloatsAlmostEqual( 

inputRecord.getShapeErr()[2, 2], 

outputRecord.getShapeErr()[2, 2], rtol=1e-6) 

 

 

class DatasetTestHelper: 

"""Helper methods for Datasets""" 

 

def makeDatasetRef(self, datasetTypeName, dataUnits, storageClass, dataId, id=None): 

"""Make a DatasetType and wrap it in a DatasetRef for a test""" 

datasetType = DatasetType(datasetTypeName, dataUnits, storageClass) 

if id is None: 

self.id += 1 

id = self.id 

return DatasetRef(datasetType, dataId, id=id)