[1325] | 1 | //# PKSFITSreader.cc: Class to read Parkes multibeam data from a FITS file. |
---|
| 2 | //#--------------------------------------------------------------------------- |
---|
[1427] | 3 | //# Copyright (C) 2000-2008 |
---|
[1325] | 4 | //# Associated Universities, Inc. Washington DC, USA. |
---|
| 5 | //# |
---|
| 6 | //# This library is free software; you can redistribute it and/or modify it |
---|
| 7 | //# under the terms of the GNU Library General Public License as published by |
---|
| 8 | //# the Free Software Foundation; either version 2 of the License, or (at your |
---|
| 9 | //# option) any later version. |
---|
| 10 | //# |
---|
| 11 | //# This library is distributed in the hope that it will be useful, but |
---|
| 12 | //# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
---|
| 13 | //# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
---|
| 14 | //# License for more details. |
---|
| 15 | //# |
---|
| 16 | //# You should have received a copy of the GNU Library General Public License |
---|
| 17 | //# along with this library; if not, write to the Free Software Foundation, |
---|
| 18 | //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
---|
| 19 | //# |
---|
| 20 | //# Correspondence concerning AIPS++ should be addressed as follows: |
---|
| 21 | //# Internet email: aips2-request@nrao.edu. |
---|
| 22 | //# Postal address: AIPS++ Project Office |
---|
| 23 | //# National Radio Astronomy Observatory |
---|
| 24 | //# 520 Edgemont Road |
---|
| 25 | //# Charlottesville, VA 22903-2475 USA |
---|
| 26 | //# |
---|
[1427] | 27 | //# $Id: PKSFITSreader.cc,v 19.14 2008-06-26 02:07:21 cal103 Exp $ |
---|
[1325] | 28 | //#--------------------------------------------------------------------------- |
---|
| 29 | //# Original: 2000/08/02, Mark Calabretta, ATNF |
---|
| 30 | //#--------------------------------------------------------------------------- |
---|
| 31 | |
---|
| 32 | #include <atnf/PKSIO/MBFITSreader.h> |
---|
| 33 | #include <atnf/PKSIO/SDFITSreader.h> |
---|
| 34 | #include <atnf/PKSIO/PKSFITSreader.h> |
---|
| 35 | #include <atnf/PKSIO/PKSMBrecord.h> |
---|
| 36 | |
---|
| 37 | #include <casa/Arrays/Array.h> |
---|
| 38 | #include <casa/BasicMath/Math.h> |
---|
| 39 | #include <casa/Quanta/MVTime.h> |
---|
| 40 | |
---|
| 41 | #include <casa/stdio.h> |
---|
| 42 | |
---|
| 43 | //----------------------------------------------- PKSFITSreader::PKSFITSreader |
---|
| 44 | |
---|
| 45 | // Constructor sets the method of position interpolation. |
---|
| 46 | |
---|
| 47 | PKSFITSreader::PKSFITSreader( |
---|
| 48 | const String fitsType, |
---|
| 49 | const Int retry, |
---|
| 50 | const Bool interpolate) |
---|
| 51 | { |
---|
[1427] | 52 | cFITSMBrec.setNIFs(1); |
---|
[1325] | 53 | |
---|
| 54 | if (fitsType == "SDFITS") { |
---|
| 55 | cReader = new SDFITSreader(); |
---|
| 56 | } else { |
---|
| 57 | cReader = new MBFITSreader(retry, interpolate ? 1 : 0); |
---|
| 58 | } |
---|
| 59 | } |
---|
| 60 | |
---|
| 61 | //---------------------------------------------- PKSFITSreader::~PKSFITSreader |
---|
| 62 | |
---|
| 63 | // Destructor. |
---|
| 64 | |
---|
| 65 | PKSFITSreader::~PKSFITSreader() |
---|
| 66 | { |
---|
| 67 | close(); |
---|
| 68 | delete cReader; |
---|
| 69 | } |
---|
| 70 | |
---|
| 71 | //-------------------------------------------------------- PKSFITSreader::open |
---|
| 72 | |
---|
| 73 | // Open the FITS file for reading. |
---|
| 74 | |
---|
| 75 | Int PKSFITSreader::open( |
---|
| 76 | const String fitsName, |
---|
| 77 | Vector<Bool> &beams, |
---|
| 78 | Vector<Bool> &IFs, |
---|
| 79 | Vector<uInt> &nChan, |
---|
| 80 | Vector<uInt> &nPol, |
---|
| 81 | Vector<Bool> &haveXPol, |
---|
| 82 | Bool &haveBase, |
---|
| 83 | Bool &haveSpectra) |
---|
| 84 | { |
---|
| 85 | int extraSysCal, haveBase_, *haveXPol_, haveSpectra_, nBeam, *nChan_, |
---|
| 86 | nIF, *nPol_, status; |
---|
| 87 | if ((status = cReader->open((char *)fitsName.chars(), nBeam, cBeams, nIF, |
---|
| 88 | cIFs, nChan_, nPol_, haveXPol_, haveBase_, |
---|
| 89 | haveSpectra_, extraSysCal))) { |
---|
| 90 | return status; |
---|
| 91 | } |
---|
| 92 | |
---|
| 93 | // Beams present in data. |
---|
| 94 | beams.resize(nBeam); |
---|
| 95 | for (Int ibeam = 0; ibeam < nBeam; ibeam++) { |
---|
| 96 | beams(ibeam) = cBeams[ibeam]; |
---|
| 97 | } |
---|
| 98 | |
---|
| 99 | // IFs, channels, and polarizations present in data. |
---|
| 100 | IFs.resize(nIF); |
---|
| 101 | nChan.resize(nIF); |
---|
| 102 | nPol.resize(nIF); |
---|
| 103 | haveXPol.resize(nIF); |
---|
| 104 | |
---|
| 105 | for (Int iIF = 0; iIF < nIF; iIF++) { |
---|
| 106 | IFs(iIF) = cIFs[iIF]; |
---|
| 107 | nChan(iIF) = nChan_[iIF]; |
---|
| 108 | nPol(iIF) = nPol_[iIF]; |
---|
| 109 | |
---|
| 110 | // Cross-polarization data present? |
---|
| 111 | haveXPol(iIF) = haveXPol_[iIF]; |
---|
| 112 | } |
---|
| 113 | |
---|
| 114 | cNBeam = nBeam; |
---|
| 115 | cNIF = nIF; |
---|
| 116 | cNChan.assign(nChan); |
---|
| 117 | cNPol.assign(nPol); |
---|
| 118 | cHaveXPol.assign(haveXPol); |
---|
| 119 | |
---|
| 120 | // Baseline parameters present? |
---|
| 121 | haveBase = haveBase_; |
---|
| 122 | |
---|
| 123 | // Spectral data present? |
---|
| 124 | haveSpectra = haveSpectra_; |
---|
| 125 | |
---|
| 126 | return 0; |
---|
| 127 | } |
---|
| 128 | |
---|
| 129 | //--------------------------------------------------- PKSFITSreader::getHeader |
---|
| 130 | |
---|
| 131 | // Get parameters describing the data. |
---|
| 132 | |
---|
| 133 | Int PKSFITSreader::getHeader( |
---|
| 134 | String &observer, |
---|
| 135 | String &project, |
---|
| 136 | String &antName, |
---|
| 137 | Vector<Double> &antPosition, |
---|
| 138 | String &obsType, |
---|
[1399] | 139 | String &bunit, |
---|
[1325] | 140 | Float &equinox, |
---|
| 141 | String &dopplerFrame, |
---|
| 142 | Double &mjd, |
---|
| 143 | Double &refFreq, |
---|
| 144 | Double &bandwidth) |
---|
| 145 | { |
---|
[1399] | 146 | char bunit_[32], datobs[32], dopplerFrame_[32], observer_[32], |
---|
| 147 | obsType_[32], project_[32], radecsys[32], telescope[32]; |
---|
[1325] | 148 | float equinox_; |
---|
| 149 | double antPos[3], utc; |
---|
| 150 | |
---|
| 151 | if (cReader->getHeader(observer_, project_, telescope, antPos, obsType_, |
---|
[1399] | 152 | bunit_, equinox_, radecsys, dopplerFrame_, |
---|
| 153 | datobs, utc, refFreq, bandwidth)) { |
---|
[1325] | 154 | return 1; |
---|
| 155 | } |
---|
| 156 | |
---|
| 157 | observer = trim(observer_); |
---|
| 158 | project = trim(project_); |
---|
| 159 | antName = trim(telescope); |
---|
| 160 | antPosition.resize(3); |
---|
| 161 | antPosition(0) = antPos[0]; |
---|
| 162 | antPosition(1) = antPos[1]; |
---|
| 163 | antPosition(2) = antPos[2]; |
---|
| 164 | obsType = trim(obsType_); |
---|
[1399] | 165 | bunit = trim(bunit_); |
---|
[1325] | 166 | equinox = equinox_; |
---|
| 167 | dopplerFrame = trim(dopplerFrame_); |
---|
| 168 | |
---|
| 169 | // Get UTC in MJD form. |
---|
| 170 | Int day, month, year; |
---|
| 171 | sscanf(datobs, "%4d-%2d-%2d", &year, &month, &day); |
---|
| 172 | MVTime date(year, month, Double(day)); |
---|
| 173 | mjd = date.day() + utc/86400.0; |
---|
| 174 | |
---|
| 175 | return 0; |
---|
| 176 | } |
---|
| 177 | |
---|
| 178 | //------------------------------------------------- PKSFITSreader::getFreqInfo |
---|
| 179 | |
---|
| 180 | // Get frequency parameters for each IF. |
---|
| 181 | |
---|
| 182 | Int PKSFITSreader::getFreqInfo( |
---|
| 183 | Vector<Double> &startFreq, |
---|
| 184 | Vector<Double> &endFreq) |
---|
| 185 | { |
---|
| 186 | int nIF; |
---|
| 187 | double *startfreq, *endfreq; |
---|
| 188 | |
---|
| 189 | Int status; |
---|
| 190 | if (!(status = cReader->getFreqInfo(nIF, startfreq, endfreq))) { |
---|
| 191 | startFreq.takeStorage(IPosition(1,nIF), startfreq, TAKE_OVER); |
---|
| 192 | endFreq.takeStorage(IPosition(1,nIF), endfreq, TAKE_OVER); |
---|
| 193 | } |
---|
| 194 | |
---|
| 195 | return status; |
---|
| 196 | } |
---|
| 197 | |
---|
| 198 | //------------------------------------------------------ PKSFITSreader::select |
---|
| 199 | |
---|
| 200 | // Set data selection by beam number and channel. |
---|
| 201 | |
---|
| 202 | uInt PKSFITSreader::select( |
---|
| 203 | const Vector<Bool> beamSel, |
---|
| 204 | const Vector<Bool> IFsel, |
---|
| 205 | const Vector<Int> startChan, |
---|
| 206 | const Vector<Int> endChan, |
---|
| 207 | const Vector<Int> refChan, |
---|
| 208 | const Bool getSpectra, |
---|
| 209 | const Bool getXPol, |
---|
| 210 | const Bool getFeedPos) |
---|
| 211 | { |
---|
| 212 | // Apply beam selection. |
---|
| 213 | uInt nBeamSel = beamSel.nelements(); |
---|
| 214 | for (uInt ibeam = 0; ibeam < cNBeam; ibeam++) { |
---|
| 215 | // This modifies FITSreader::cBeams[]. |
---|
| 216 | if (ibeam < nBeamSel) { |
---|
| 217 | cBeams[ibeam] = cBeams[ibeam] && beamSel(ibeam); |
---|
| 218 | } else { |
---|
| 219 | cBeams[ibeam] = 0; |
---|
| 220 | } |
---|
| 221 | } |
---|
| 222 | |
---|
| 223 | // Apply IF selection. |
---|
| 224 | int *end = new int[cNIF]; |
---|
| 225 | int *ref = new int[cNIF]; |
---|
| 226 | int *start = new int[cNIF]; |
---|
| 227 | |
---|
| 228 | for (uInt iIF = 0; iIF < cNIF; iIF++) { |
---|
| 229 | // This modifies FITSreader::cIFs[]. |
---|
| 230 | if (iIF < IFsel.nelements()) { |
---|
| 231 | cIFs[iIF] = cIFs[iIF] && IFsel(iIF); |
---|
| 232 | } else { |
---|
| 233 | cIFs[iIF] = 0; |
---|
| 234 | } |
---|
| 235 | |
---|
| 236 | if (cIFs[iIF]) { |
---|
| 237 | if (iIF < startChan.nelements()) { |
---|
| 238 | start[iIF] = startChan(iIF); |
---|
| 239 | |
---|
| 240 | if (start[iIF] <= 0) { |
---|
| 241 | start[iIF] += cNChan(iIF); |
---|
| 242 | } else if (start[iIF] > Int(cNChan(iIF))) { |
---|
| 243 | start[iIF] = cNChan(iIF); |
---|
| 244 | } |
---|
| 245 | |
---|
| 246 | } else { |
---|
| 247 | start[iIF] = 1; |
---|
| 248 | } |
---|
| 249 | |
---|
| 250 | if (iIF < endChan.nelements()) { |
---|
| 251 | end[iIF] = endChan(iIF); |
---|
| 252 | |
---|
| 253 | if (end[iIF] <= 0) { |
---|
| 254 | end[iIF] += cNChan(iIF); |
---|
| 255 | } else if (end[iIF] > Int(cNChan(iIF))) { |
---|
| 256 | end[iIF] = cNChan(iIF); |
---|
| 257 | } |
---|
| 258 | |
---|
| 259 | } else { |
---|
| 260 | end[iIF] = cNChan(iIF); |
---|
| 261 | } |
---|
| 262 | |
---|
| 263 | if (iIF < refChan.nelements()) { |
---|
| 264 | ref[iIF] = refChan(iIF); |
---|
| 265 | } else { |
---|
| 266 | if (start[iIF] <= end[iIF]) { |
---|
| 267 | ref[iIF] = start[iIF] + (end[iIF] - start[iIF] + 1)/2; |
---|
| 268 | } else { |
---|
| 269 | ref[iIF] = start[iIF] - (start[iIF] - end[iIF] + 1)/2; |
---|
| 270 | } |
---|
| 271 | } |
---|
| 272 | } |
---|
| 273 | } |
---|
| 274 | |
---|
| 275 | cGetSpectra = getSpectra; |
---|
| 276 | cGetXPol = getXPol; |
---|
| 277 | cGetFeedPos = getFeedPos; |
---|
| 278 | |
---|
| 279 | uInt maxNChan = cReader->select(start, end, ref, cGetSpectra, cGetXPol, |
---|
| 280 | cGetFeedPos); |
---|
| 281 | |
---|
| 282 | delete [] end; |
---|
| 283 | delete [] ref; |
---|
| 284 | delete [] start; |
---|
| 285 | |
---|
| 286 | return maxNChan; |
---|
| 287 | } |
---|
| 288 | |
---|
| 289 | //--------------------------------------------------- PKSFITSreader::findRange |
---|
| 290 | |
---|
| 291 | // Read the TIME column. |
---|
| 292 | |
---|
| 293 | Int PKSFITSreader::findRange( |
---|
| 294 | Int &nRow, |
---|
| 295 | Int &nSel, |
---|
| 296 | Vector<Double> &timeSpan, |
---|
| 297 | Matrix<Double> &positions) |
---|
| 298 | { |
---|
| 299 | char dateSpan[2][32]; |
---|
| 300 | double utcSpan[2]; |
---|
| 301 | double* posns; |
---|
| 302 | |
---|
| 303 | Int status; |
---|
| 304 | if (!(status = cReader->findRange(nRow, nSel, dateSpan, utcSpan, posns))) { |
---|
| 305 | timeSpan.resize(2); |
---|
| 306 | |
---|
| 307 | Int day, month, year; |
---|
| 308 | sscanf(dateSpan[0], "%4d-%2d-%2d", &year, &month, &day); |
---|
| 309 | timeSpan(0) = MVTime(year, month, Double(day)).second() + utcSpan[0]; |
---|
| 310 | sscanf(dateSpan[1], "%4d-%2d-%2d", &year, &month, &day); |
---|
| 311 | timeSpan(1) = MVTime(year, month, Double(day)).second() + utcSpan[1]; |
---|
| 312 | |
---|
| 313 | positions.takeStorage(IPosition(2,2,nSel), posns, TAKE_OVER); |
---|
| 314 | } |
---|
| 315 | |
---|
| 316 | return status; |
---|
| 317 | } |
---|
| 318 | |
---|
| 319 | //-------------------------------------------------------- PKSFITSreader::read |
---|
| 320 | |
---|
| 321 | // Read the next data record. |
---|
| 322 | |
---|
[1427] | 323 | Int PKSFITSreader::read(MBrecord &MBrec) |
---|
[1325] | 324 | { |
---|
| 325 | Int status; |
---|
| 326 | |
---|
[1427] | 327 | if ((status = cReader->read(cFITSMBrec))) { |
---|
[1325] | 328 | if (status != -1) { |
---|
| 329 | status = 1; |
---|
| 330 | } |
---|
| 331 | |
---|
| 332 | return status; |
---|
| 333 | } |
---|
| 334 | |
---|
| 335 | |
---|
[1427] | 336 | uInt nChan = cFITSMBrec.nChan[0]; |
---|
| 337 | uInt nPol = cFITSMBrec.nPol[0]; |
---|
[1325] | 338 | |
---|
[1427] | 339 | MBrec.scanNo = cFITSMBrec.scanNo; |
---|
| 340 | MBrec.cycleNo = cFITSMBrec.cycleNo; |
---|
[1325] | 341 | |
---|
| 342 | // Extract MJD. |
---|
| 343 | Int day, month, year; |
---|
[1427] | 344 | sscanf(cFITSMBrec.datobs, "%4d-%2d-%2d", &year, &month, &day); |
---|
| 345 | MBrec.mjd = MVTime(year, month, Double(day)).day() + cFITSMBrec.utc/86400.0; |
---|
[1325] | 346 | |
---|
[1427] | 347 | MBrec.interval = cFITSMBrec.exposure; |
---|
[1325] | 348 | |
---|
[1427] | 349 | MBrec.fieldName = trim(cFITSMBrec.srcName); |
---|
| 350 | MBrec.srcName = MBrec.fieldName; |
---|
[1325] | 351 | |
---|
[1427] | 352 | MBrec.srcDir.resize(2); |
---|
| 353 | MBrec.srcDir(0) = cFITSMBrec.srcRA; |
---|
| 354 | MBrec.srcDir(1) = cFITSMBrec.srcDec; |
---|
[1325] | 355 | |
---|
[1427] | 356 | MBrec.srcPM.resize(2); |
---|
| 357 | MBrec.srcPM(0) = 0.0; |
---|
| 358 | MBrec.srcPM(1) = 0.0; |
---|
| 359 | MBrec.srcVel = 0.0; |
---|
| 360 | MBrec.obsType = trim(cFITSMBrec.obsType); |
---|
| 361 | |
---|
| 362 | MBrec.IFno = cFITSMBrec.IFno[0]; |
---|
| 363 | Double chanWidth = fabs(cFITSMBrec.fqDelt[0]); |
---|
| 364 | MBrec.refFreq = cFITSMBrec.fqRefVal[0]; |
---|
| 365 | MBrec.bandwidth = chanWidth * nChan; |
---|
| 366 | MBrec.freqInc = cFITSMBrec.fqDelt[0]; |
---|
| 367 | MBrec.restFreq = cFITSMBrec.restFreq; |
---|
| 368 | |
---|
| 369 | MBrec.tcal.resize(nPol); |
---|
[1325] | 370 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
---|
[1427] | 371 | MBrec.tcal(ipol) = cFITSMBrec.tcal[0][ipol]; |
---|
[1325] | 372 | } |
---|
[1427] | 373 | MBrec.tcalTime = trim(cFITSMBrec.tcalTime); |
---|
| 374 | MBrec.azimuth = cFITSMBrec.azimuth; |
---|
| 375 | MBrec.elevation = cFITSMBrec.elevation; |
---|
| 376 | MBrec.parAngle = cFITSMBrec.parAngle; |
---|
| 377 | MBrec.focusAxi = cFITSMBrec.focusAxi; |
---|
| 378 | MBrec.focusTan = cFITSMBrec.focusTan; |
---|
| 379 | MBrec.focusRot = cFITSMBrec.focusRot; |
---|
[1325] | 380 | |
---|
[1427] | 381 | MBrec.temperature = cFITSMBrec.temp; |
---|
| 382 | MBrec.pressure = cFITSMBrec.pressure; |
---|
| 383 | MBrec.humidity = cFITSMBrec.humidity; |
---|
| 384 | MBrec.windSpeed = cFITSMBrec.windSpeed; |
---|
| 385 | MBrec.windAz = cFITSMBrec.windAz; |
---|
[1325] | 386 | |
---|
[1427] | 387 | MBrec.refBeam = cFITSMBrec.refBeam; |
---|
| 388 | MBrec.beamNo = cFITSMBrec.beamNo; |
---|
[1325] | 389 | |
---|
[1427] | 390 | MBrec.direction.resize(2); |
---|
| 391 | MBrec.direction(0) = cFITSMBrec.ra; |
---|
| 392 | MBrec.direction(1) = cFITSMBrec.dec; |
---|
[1325] | 393 | |
---|
[1427] | 394 | MBrec.scanRate.resize(2); |
---|
| 395 | MBrec.scanRate(0) = cFITSMBrec.raRate; |
---|
| 396 | MBrec.scanRate(1) = cFITSMBrec.decRate; |
---|
| 397 | MBrec.rateAge = cFITSMBrec.rateAge; |
---|
| 398 | MBrec.rateson = cFITSMBrec.rateson; |
---|
| 399 | |
---|
| 400 | MBrec.tsys.resize(nPol); |
---|
| 401 | MBrec.sigma.resize(nPol); |
---|
| 402 | MBrec.calFctr.resize(nPol); |
---|
[1325] | 403 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
---|
[1427] | 404 | MBrec.tsys(ipol) = cFITSMBrec.tsys[0][ipol]; |
---|
| 405 | MBrec.sigma(ipol) = (MBrec.tsys(ipol) / 0.81) / |
---|
| 406 | sqrt(MBrec.interval * chanWidth); |
---|
| 407 | MBrec.calFctr(ipol) = cFITSMBrec.calfctr[0][ipol]; |
---|
[1325] | 408 | } |
---|
| 409 | |
---|
[1427] | 410 | if (cFITSMBrec.haveBase) { |
---|
| 411 | MBrec.baseLin.resize(2,nPol); |
---|
| 412 | MBrec.baseSub.resize(9,nPol); |
---|
[1325] | 413 | |
---|
| 414 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
---|
[1427] | 415 | MBrec.baseLin(0,ipol) = cFITSMBrec.baseLin[0][ipol][0]; |
---|
| 416 | MBrec.baseLin(1,ipol) = cFITSMBrec.baseLin[0][ipol][1]; |
---|
[1325] | 417 | |
---|
| 418 | for (uInt j = 0; j < 9; j++) { |
---|
[1427] | 419 | MBrec.baseSub(j,ipol) = cFITSMBrec.baseSub[0][ipol][j]; |
---|
[1325] | 420 | } |
---|
| 421 | } |
---|
| 422 | |
---|
| 423 | } else { |
---|
[1427] | 424 | MBrec.baseLin.resize(0,0); |
---|
| 425 | MBrec.baseSub.resize(0,0); |
---|
[1325] | 426 | } |
---|
| 427 | |
---|
[1427] | 428 | if (cGetSpectra && cFITSMBrec.haveSpectra) { |
---|
| 429 | MBrec.spectra.resize(nChan,nPol); |
---|
| 430 | MBrec.spectra.takeStorage(IPosition(2,nChan,nPol), cFITSMBrec.spectra[0], |
---|
| 431 | SHARE); |
---|
[1325] | 432 | |
---|
[1427] | 433 | MBrec.flagged.resize(nChan,nPol); |
---|
| 434 | MBrec.flagged.takeStorage(IPosition(2,nChan,nPol), cFITSMBrec.flagged[0], |
---|
| 435 | SHARE); |
---|
[1325] | 436 | |
---|
| 437 | } else { |
---|
[1427] | 438 | MBrec.spectra.resize(0,0); |
---|
| 439 | MBrec.flagged.resize(0,0); |
---|
[1325] | 440 | } |
---|
| 441 | |
---|
| 442 | if (cGetXPol) { |
---|
[1427] | 443 | MBrec.xCalFctr = Complex(cFITSMBrec.xcalfctr[0][0], |
---|
| 444 | cFITSMBrec.xcalfctr[0][1]); |
---|
| 445 | MBrec.xPol.resize(nChan); |
---|
| 446 | MBrec.xPol.takeStorage(IPosition(1,nChan), (Complex *)cFITSMBrec.xpol[0], |
---|
| 447 | SHARE); |
---|
[1325] | 448 | } |
---|
| 449 | |
---|
| 450 | return 0; |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | //-------------------------------------------------------- PKSFITSreader::read |
---|
| 454 | |
---|
| 455 | // Read the next data record, just the basics. |
---|
| 456 | |
---|
| 457 | Int PKSFITSreader::read( |
---|
| 458 | Int &IFno, |
---|
| 459 | Vector<Float> &tsys, |
---|
| 460 | Vector<Float> &calFctr, |
---|
| 461 | Matrix<Float> &baseLin, |
---|
| 462 | Matrix<Float> &baseSub, |
---|
| 463 | Matrix<Float> &spectra, |
---|
| 464 | Matrix<uChar> &flagged) |
---|
| 465 | { |
---|
| 466 | Int status; |
---|
| 467 | |
---|
[1427] | 468 | if ((status = cReader->read(cFITSMBrec))) { |
---|
[1325] | 469 | if (status != -1) { |
---|
| 470 | status = 1; |
---|
| 471 | } |
---|
| 472 | |
---|
| 473 | return status; |
---|
| 474 | } |
---|
| 475 | |
---|
[1427] | 476 | IFno = cFITSMBrec.IFno[0]; |
---|
[1325] | 477 | |
---|
[1427] | 478 | uInt nChan = cFITSMBrec.nChan[0]; |
---|
| 479 | uInt nPol = cFITSMBrec.nPol[0]; |
---|
[1325] | 480 | |
---|
| 481 | tsys.resize(nPol); |
---|
| 482 | calFctr.resize(nPol); |
---|
| 483 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
---|
[1427] | 484 | tsys(ipol) = cFITSMBrec.tsys[0][ipol]; |
---|
| 485 | calFctr(ipol) = cFITSMBrec.calfctr[0][ipol]; |
---|
[1325] | 486 | } |
---|
| 487 | |
---|
[1427] | 488 | if (cFITSMBrec.haveBase) { |
---|
[1325] | 489 | baseLin.resize(2,nPol); |
---|
| 490 | baseSub.resize(9,nPol); |
---|
| 491 | |
---|
| 492 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
---|
[1427] | 493 | baseLin(0,ipol) = cFITSMBrec.baseLin[0][ipol][0]; |
---|
| 494 | baseLin(1,ipol) = cFITSMBrec.baseLin[0][ipol][1]; |
---|
[1325] | 495 | |
---|
| 496 | for (uInt j = 0; j < 9; j++) { |
---|
[1427] | 497 | baseSub(j,ipol) = cFITSMBrec.baseSub[0][ipol][j]; |
---|
[1325] | 498 | } |
---|
| 499 | } |
---|
| 500 | |
---|
| 501 | } else { |
---|
| 502 | baseLin.resize(0,0); |
---|
| 503 | baseSub.resize(0,0); |
---|
| 504 | } |
---|
| 505 | |
---|
[1427] | 506 | if (cGetSpectra && cFITSMBrec.haveSpectra) { |
---|
[1325] | 507 | spectra.resize(nChan,nPol); |
---|
[1427] | 508 | spectra.takeStorage(IPosition(2,nChan,nPol), cFITSMBrec.spectra[0], |
---|
| 509 | SHARE); |
---|
[1325] | 510 | |
---|
| 511 | flagged.resize(nChan,nPol); |
---|
[1427] | 512 | flagged.takeStorage(IPosition(2,nChan,nPol), cFITSMBrec.flagged[0], |
---|
| 513 | SHARE); |
---|
[1325] | 514 | |
---|
| 515 | } else { |
---|
| 516 | spectra.resize(0,0); |
---|
| 517 | flagged.resize(0,0); |
---|
| 518 | } |
---|
| 519 | |
---|
| 520 | return 0; |
---|
| 521 | } |
---|
| 522 | |
---|
| 523 | //------------------------------------------------------- PKSFITSreader::close |
---|
| 524 | |
---|
| 525 | // Close the FITS file. |
---|
| 526 | |
---|
| 527 | void PKSFITSreader::close() |
---|
| 528 | { |
---|
| 529 | cReader->close(); |
---|
| 530 | } |
---|
| 531 | |
---|
| 532 | //-------------------------------------------------------- PKSFITSreader::trim |
---|
| 533 | |
---|
| 534 | // Trim trailing blanks from a null-terminated character string. |
---|
| 535 | |
---|
| 536 | char* PKSFITSreader::trim(char *string) |
---|
| 537 | { |
---|
| 538 | int j = 0, k = 0; |
---|
| 539 | while (string[j] != '\0') { |
---|
| 540 | if (string[j++] != ' ') { |
---|
| 541 | k = j; |
---|
| 542 | } |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | string[k] = '\0'; |
---|
| 546 | |
---|
| 547 | return string; |
---|
| 548 | } |
---|