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1# This file is part of ap_association. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (https://www.lsst.org). 

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

7# for details of code ownership. 

8# 

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

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

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

12# (at your option) any later version. 

13# 

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

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

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

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

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

21 

22import os 

23import numpy as np 

24import pandas as pd 

25import tempfile 

26import unittest 

27 

28from lsst.afw.cameraGeom.testUtils import DetectorWrapper 

29import lsst.afw.geom as afwGeom 

30import lsst.afw.image as afwImage 

31import lsst.afw.image.utils as afwImageUtils 

32from lsst.ap.association import (LoadDiaCatalogsTask, 

33 LoadDiaCatalogsConfig, 

34 make_dia_source_schema, 

35 make_dia_object_schema) 

36import lsst.daf.base as dafBase 

37from lsst.dax.apdb import Apdb, ApdbConfig 

38import lsst.geom as geom 

39import lsst.sphgeom as sphgeom 

40from lsst.utils import getPackageDir 

41import lsst.utils.tests 

42 

43 

44def _data_file_name(basename, module_name): 

45 """Return path name of a data file. 

46 

47 Parameters 

48 ---------- 

49 basename : `str` 

50 Name of the file to add to the path string. 

51 module_name : `str` 

52 Name of lsst stack package environment variable. 

53 

54 Returns 

55 ------- 

56 data_file_path : `str` 

57 Full path of the file to load from the "data" directory in a given 

58 repository. 

59 """ 

60 return os.path.join(getPackageDir(module_name), "data", basename) 

61 

62 

63def makeExposure(flipX=False, flipY=False): 

64 """Create an exposure and flip the x or y (or both) coordinates. 

65 

66 Returns bounding boxes that are right or left handed around the bounding 

67 polygon. 

68 

69 Parameters 

70 ---------- 

71 flipX : `bool` 

72 Flip the x coordinate in the WCS. 

73 flipY : `bool` 

74 Flip the y coordinate in the WCS. 

75 

76 Returns 

77 ------- 

78 exposure : `lsst.afw.image.Exposure` 

79 Exposure with a valid bounding box and wcs. 

80 """ 

81 metadata = dafBase.PropertySet() 

82 

83 metadata.set("SIMPLE", "T") 

84 metadata.set("BITPIX", -32) 

85 metadata.set("NAXIS", 2) 

86 metadata.set("NAXIS1", 1024) 

87 metadata.set("NAXIS2", 1153) 

88 metadata.set("RADECSYS", 'FK5') 

89 metadata.set("EQUINOX", 2000.) 

90 

91 metadata.setDouble("CRVAL1", 215.604025685476) 

92 metadata.setDouble("CRVAL2", 53.1595451514076) 

93 metadata.setDouble("CRPIX1", 1109.99981456774) 

94 metadata.setDouble("CRPIX2", 560.018167811613) 

95 metadata.set("CTYPE1", 'RA---SIN') 

96 metadata.set("CTYPE2", 'DEC--SIN') 

97 

98 xFlip = 1 

99 if flipX: 

100 xFlip = -1 

101 yFlip = 1 

102 if flipY: 

103 yFlip = -1 

104 metadata.setDouble("CD1_1", xFlip * 5.10808596133527E-05) 

105 metadata.setDouble("CD1_2", yFlip * 1.85579539217196E-07) 

106 metadata.setDouble("CD2_2", yFlip * -5.10281493481982E-05) 

107 metadata.setDouble("CD2_1", xFlip * -8.27440751733828E-07) 

108 

109 wcs = afwGeom.makeSkyWcs(metadata) 

110 exposure = afwImage.makeExposure( 

111 afwImage.makeMaskedImageFromArrays(np.ones((1024, 1153))), wcs) 

112 detector = DetectorWrapper(id=23, bbox=exposure.getBBox()).detector 

113 visit = afwImage.VisitInfo( 

114 exposureId=1234, 

115 exposureTime=200., 

116 date=dafBase.DateTime("2014-05-13T17:00:00.000000000", 

117 dafBase.DateTime.Timescale.TAI)) 

118 exposure.setDetector(detector) 

119 exposure.getInfo().setVisitInfo(visit) 

120 exposure.setFilter(afwImage.Filter('g')) 

121 

122 return exposure 

123 

124 

125def makeDiaObjects(nObjects, exposure, pixelator): 

126 """Make a test set of DiaObjects. 

127 

128 Parameters 

129 ---------- 

130 nObjects : `int` 

131 Number of objects to create. 

132 exposure : `lsst.afw.image.Exposure` 

133 Exposure to create objects over. 

134 pixelator : `lsst.sphgeom.HtmPixelization` 

135 Object to compute spatial indicies from. 

136 

137 Returns 

138 ------- 

139 diaObjects : `pandas.DataFrame` 

140 DiaObjects generated across the exposure. 

141 """ 

142 bbox = geom.Box2D(exposure.getBBox()) 

143 rand_x = np.random.uniform(bbox.getMinX(), bbox.getMaxX(), size=nObjects) 

144 rand_y = np.random.uniform(bbox.getMinY(), bbox.getMaxY(), size=nObjects) 

145 

146 midPointTaiMJD = exposure.getInfo().getVisitInfo().getDate().get( 

147 system=dafBase.DateTime.MJD) 

148 

149 wcs = exposure.getWcs() 

150 

151 data = [] 

152 for idx, (x, y) in enumerate(zip(rand_x, rand_y)): 

153 coord = wcs.pixelToSky(x, y) 

154 htmIdx = pixelator.index(coord.getVector()) 

155 newObject = {"ra": coord.getRa().asDegrees(), 

156 "decl": coord.getRa().asDegrees(), 

157 "radecTai": midPointTaiMJD, 

158 "diaObjectId": idx, 

159 "pixelId": htmIdx, 

160 "pmParallaxNdata": 0, 

161 "nearbyObj1": 0, 

162 "nearbyObj2": 0, 

163 "nearbyObj3": 0} 

164 for f in ["u", "g", "r", "i", "z", "y"]: 

165 newObject["%sPSFluxNdata" % f] = 0 

166 data.append(newObject) 

167 

168 return pd.DataFrame(data=data) 

169 

170 

171def makeDiaSources(nSources, diaObjectIds, exposure, pixelator): 

172 """Make a test set of DiaSources. 

173 

174 Parameters 

175 ---------- 

176 nSources : `int` 

177 Number of sources to create. 

178 diaObjectIds : `numpy.ndarray` 

179 Integer Ids of diaobjects to "associate" with the DiaSources. 

180 exposure : `lsst.afw.image.Exposure` 

181 Exposure to create sources over. 

182 pixelator : `lsst.sphgeom.HtmPixelization` 

183 Object to compute spatial indicies from. 

184 

185 Returns 

186 ------- 

187 diaSources : `pandas.DataFrame` 

188 DiaSources generated across the exposure. 

189 """ 

190 bbox = geom.Box2D(exposure.getBBox()) 

191 rand_x = np.random.uniform(bbox.getMinX(), bbox.getMaxX(), size=nSources) 

192 rand_y = np.random.uniform(bbox.getMinY(), bbox.getMaxY(), size=nSources) 

193 rand_ids = diaObjectIds[np.random.randint(len(diaObjectIds), size=nSources)] 

194 

195 midPointTaiMJD = exposure.getInfo().getVisitInfo().getDate().get( 

196 system=dafBase.DateTime.MJD) 

197 

198 wcs = exposure.getWcs() 

199 

200 data = [] 

201 for idx, (x, y, objId) in enumerate(zip(rand_x, rand_y, rand_ids)): 

202 coord = wcs.pixelToSky(x, y) 

203 htmIdx = pixelator.index(coord.getVector()) 

204 data.append({"ra": coord.getRa().asDegrees(), 

205 "decl": coord.getRa().asDegrees(), 

206 "diaObjectId": objId, 

207 "diaSourceId": idx, 

208 "pixelId": htmIdx, 

209 "midPointTai": midPointTaiMJD}) 

210 

211 return pd.DataFrame(data=data) 

212 

213 

214def makeDiaForcedSources(nForcedSources, diaObjectIds, exposure): 

215 """Make a test set of DiaForcedSources. 

216 

217 Parameters 

218 ---------- 

219 nForcedSources : `int` 

220 Number of sources to create. 

221 diaObjectIds : `numpy.ndarray` 

222 Integer Ids of diaobjects to "associate" with the DiaSources. 

223 exposure : `lsst.afw.image.Exposure` 

224 Exposure to create sources over. 

225 

226 Returns 

227 ------- 

228 diaForcedSources : `pandas.DataFrame` 

229 DiaForcedSources generated across the exposure. 

230 """ 

231 rand_ids = diaObjectIds[ 

232 np.random.randint(len(diaObjectIds), size=nForcedSources)] 

233 

234 midPointTaiMJD = exposure.getInfo().getVisitInfo().getDate().get( 

235 system=dafBase.DateTime.MJD) 

236 

237 data = [] 

238 for idx, objId in enumerate(rand_ids): 

239 data.append({"diaObjectId": objId, 

240 "diaForcedSourceId": idx, 

241 "ccdVisitId": idx, 

242 "midPointTai": midPointTaiMJD}) 

243 

244 return pd.DataFrame(data=data) 

245 

246 

247class TestLoadDiaCatalogs(unittest.TestCase): 

248 

249 def setUp(self): 

250 np.random.seed(1234) 

251 

252 # CFHT Filters from the camera mapper. 

253 self.filter_names = ["g"] 

254 afwImageUtils.resetFilters() 

255 afwImageUtils.defineFilter('g', lambdaEff=487, alias="g.MP9401") 

256 

257 self.db_file_fd, self.db_file = tempfile.mkstemp( 

258 dir=os.path.dirname(__file__)) 

259 

260 self.apdbConfig = ApdbConfig() 

261 self.apdbConfig.db_url = "sqlite:///" + self.db_file 

262 self.apdbConfig.isolation_level = "READ_UNCOMMITTED" 

263 self.apdbConfig.dia_object_index = "baseline" 

264 self.apdbConfig.dia_object_columns = [] 

265 self.apdbConfig.schema_file = _data_file_name( 

266 "apdb-schema.yaml", "dax_apdb") 

267 self.apdbConfig.column_map = _data_file_name( 

268 "apdb-ap-pipe-afw-map.yaml", "ap_association") 

269 self.apdbConfig.extra_schema_file = _data_file_name( 

270 "apdb-ap-pipe-schema-extra.yaml", "ap_association") 

271 

272 self.apdb = Apdb(config=self.apdbConfig, 

273 afw_schemas=dict(DiaObject=make_dia_object_schema(), 

274 DiaSource=make_dia_source_schema())) 

275 self.apdb.makeSchema() 

276 

277 # Expected HTM pixel ranges for max range=4 and level = 20. This 

278 # set of pixels should be same for the WCS created by default in 

279 # makeExposure and for one with a flipped y axis. 

280 self.ranges = np.sort(np.array([15154776375296, 15154779521024, 

281 15154788958208, 15154792103936])) 

282 

283 self.pixelator = sphgeom.HtmPixelization(20) 

284 self.exposure = makeExposure(False, False) 

285 

286 self.diaObjects = makeDiaObjects(20, self.exposure, self.pixelator) 

287 self.diaSources = makeDiaSources( 

288 100, 

289 self.diaObjects["diaObjectId"].to_numpy(), 

290 self.exposure, 

291 self.pixelator) 

292 self.diaForcedSources = makeDiaForcedSources( 

293 200, 

294 self.diaObjects["diaObjectId"].to_numpy(), 

295 self.exposure) 

296 

297 self.apdb.storeDiaSources(self.diaSources) 

298 self.apdb.storeDiaForcedSources(self.diaForcedSources) 

299 self.dateTime = \ 

300 self.exposure.getInfo().getVisitInfo().getDate().toPython() 

301 self.apdb.storeDiaObjects(self.diaObjects, 

302 self.dateTime) 

303 

304 def tearDown(self): 

305 os.close(self.db_file_fd) 

306 os.remove(self.db_file) 

307 

308 def testRun(self): 

309 """Test the full run method for the loader. 

310 """ 

311 diaLoader = LoadDiaCatalogsTask() 

312 result = diaLoader.run(self.exposure, self.apdb) 

313 

314 self.assertEqual(len(result.diaObjects), len(self.diaObjects)) 

315 self.assertEqual(len(result.diaSources), len(self.diaSources)) 

316 self.assertEqual(len(result.diaForcedSources), 

317 len(self.diaForcedSources)) 

318 

319 def testLoadDiaObjects(self): 

320 """Test that the correct number of diaObjects are loaded. 

321 """ 

322 diaLoader = LoadDiaCatalogsTask() 

323 normPixels = diaLoader._getPixelRanges(self.exposure) 

324 diaObjects = diaLoader.loadDiaObjects(normPixels, 

325 self.apdb) 

326 self.assertEqual(len(diaObjects), len(self.diaObjects)) 

327 

328 def testLoadDiaForcedSources(self): 

329 """Test that the correct number of diaForcedSources are loaded. 

330 """ 

331 diaLoader = LoadDiaCatalogsTask() 

332 diaForcedSources = diaLoader.loadDiaForcedSources( 

333 self.diaObjects, 

334 self.dateTime, 

335 self.apdb) 

336 self.assertEqual(len(diaForcedSources), len(self.diaForcedSources)) 

337 

338 def testLoadDiaSourcesByPixelId(self): 

339 """Test that the correct number of diaSources are loaded. 

340 

341 Also check that they can be properly loaded both by location and 

342 ``diaObjectId``. 

343 """ 

344 self._testLoadDiaSources(True) 

345 

346 def testLoadDiaSourcesByDiaObjectId(self): 

347 """Test that the correct number of diaSources are loaded. 

348 

349 Also check that they can be properly loaded both by location and 

350 ``diaObjectId``. 

351 """ 

352 self._testLoadDiaSources(False) 

353 

354 def _testLoadDiaSources(self, loadByPixelId): 

355 """Test that DiaSources are loaded correctly. 

356 

357 Parameters 

358 ---------- 

359 loadByPixelId : `bool` 

360 Load DiaSources by ``pixelId`` if ``True`` and by ``diaObjectId`` 

361 if ``False``. 

362 """ 

363 diaConfig = LoadDiaCatalogsConfig() 

364 diaConfig.loadDiaSourcesByPixelId = loadByPixelId 

365 diaLoader = LoadDiaCatalogsTask(config=diaConfig) 

366 

367 normPixels = diaLoader._getPixelRanges(self.exposure) 

368 diaSources = diaLoader.loadDiaSources(self.diaObjects, 

369 normPixels, 

370 self.dateTime, 

371 self.apdb) 

372 self.assertEqual(len(diaSources), len(self.diaSources)) 

373 

374 def testGetPixelRanges(self): 

375 """Test the same pixels are returned for flips/ordering changes in 

376 the WCS. 

377 """ 

378 diaConfig = LoadDiaCatalogsConfig() 

379 diaConfig.htmMaxRanges = 4 

380 diaLoader = LoadDiaCatalogsTask(config=diaConfig) 

381 

382 # Make two exposures, one with a flipped y axis to get left vs. right 

383 # handed. 

384 exposure = makeExposure(False, False) 

385 exposureFlip = makeExposure(False, True) 

386 

387 normPixels = diaLoader._getPixelRanges(exposure) 

388 flipPixels = diaLoader._getPixelRanges(exposureFlip) 

389 

390 for normPix, flipPix, testPix in zip( 

391 np.sort(np.array(normPixels).flatten()), 

392 np.sort(np.array(flipPixels).flatten()), 

393 self.ranges): 

394 self.assertEqual(normPix, flipPix) 

395 self.assertEqual(normPix, testPix) 

396 self.assertEqual(flipPix, testPix) 

397 

398 

399class MemoryTester(lsst.utils.tests.MemoryTestCase): 

400 pass 

401 

402 

403def setup_module(module): 

404 lsst.utils.tests.init() 

405 

406 

407if __name__ == "__main__": 407 ↛ 408line 407 didn't jump to line 408, because the condition on line 407 was never true

408 lsst.utils.tests.init() 

409 unittest.main()