| 1 | //# PKSFITSreader.cc: Class to read Parkes multibeam data from a FITS file. |
|---|
| 2 | //#--------------------------------------------------------------------------- |
|---|
| 3 | //# Copyright (C) 2000-2007 |
|---|
| 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 | //# |
|---|
| 27 | //# $Id: PKSFITSreader.cc,v 19.13 2007/11/12 03:37:56 cal103 Exp $ |
|---|
| 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 | { |
|---|
| 52 | cMBrec.setNIFs(1); |
|---|
| 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, |
|---|
| 139 | String &bunit, |
|---|
| 140 | Float &equinox, |
|---|
| 141 | String &dopplerFrame, |
|---|
| 142 | Double &mjd, |
|---|
| 143 | Double &refFreq, |
|---|
| 144 | Double &bandwidth) |
|---|
| 145 | { |
|---|
| 146 | char bunit_[32], datobs[32], dopplerFrame_[32], observer_[32], |
|---|
| 147 | obsType_[32], project_[32], radecsys[32], telescope[32]; |
|---|
| 148 | float equinox_; |
|---|
| 149 | double antPos[3], utc; |
|---|
| 150 | |
|---|
| 151 | if (cReader->getHeader(observer_, project_, telescope, antPos, obsType_, |
|---|
| 152 | bunit_, equinox_, radecsys, dopplerFrame_, |
|---|
| 153 | datobs, utc, refFreq, bandwidth)) { |
|---|
| 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_); |
|---|
| 165 | bunit = trim(bunit_); |
|---|
| 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 | |
|---|
| 323 | Int PKSFITSreader::read( |
|---|
| 324 | Int &scanNo, |
|---|
| 325 | Int &cycleNo, |
|---|
| 326 | Double &mjd, |
|---|
| 327 | Double &interval, |
|---|
| 328 | String &fieldName, |
|---|
| 329 | String &srcName, |
|---|
| 330 | Vector<Double> &srcDir, |
|---|
| 331 | Vector<Double> &srcPM, |
|---|
| 332 | Double &srcVel, |
|---|
| 333 | String &obsType, |
|---|
| 334 | Int &IFno, |
|---|
| 335 | Double &refFreq, |
|---|
| 336 | Double &bandwidth, |
|---|
| 337 | Double &freqInc, |
|---|
| 338 | Double &restFreq, |
|---|
| 339 | Vector<Float> &tcal, |
|---|
| 340 | String &tcalTime, |
|---|
| 341 | Float &azimuth, |
|---|
| 342 | Float &elevation, |
|---|
| 343 | Float &parAngle, |
|---|
| 344 | Float &focusAxi, |
|---|
| 345 | Float &focusTan, |
|---|
| 346 | Float &focusRot, |
|---|
| 347 | Float &temperature, |
|---|
| 348 | Float &pressure, |
|---|
| 349 | Float &humidity, |
|---|
| 350 | Float &windSpeed, |
|---|
| 351 | Float &windAz, |
|---|
| 352 | Int &refBeam, |
|---|
| 353 | Int &beamNo, |
|---|
| 354 | Vector<Double> &direction, |
|---|
| 355 | Vector<Double> &scanRate, |
|---|
| 356 | Vector<Float> &tsys, |
|---|
| 357 | Vector<Float> &sigma, |
|---|
| 358 | Vector<Float> &calFctr, |
|---|
| 359 | Matrix<Float> &baseLin, |
|---|
| 360 | Matrix<Float> &baseSub, |
|---|
| 361 | Matrix<Float> &spectra, |
|---|
| 362 | Matrix<uChar> &flagged, |
|---|
| 363 | Complex &xCalFctr, |
|---|
| 364 | Vector<Complex> &xPol) |
|---|
| 365 | { |
|---|
| 366 | Int status; |
|---|
| 367 | |
|---|
| 368 | if ((status = cReader->read(cMBrec))) { |
|---|
| 369 | if (status != -1) { |
|---|
| 370 | status = 1; |
|---|
| 371 | } |
|---|
| 372 | |
|---|
| 373 | return status; |
|---|
| 374 | } |
|---|
| 375 | |
|---|
| 376 | |
|---|
| 377 | uInt nChan = cMBrec.nChan[0]; |
|---|
| 378 | uInt nPol = cMBrec.nPol[0]; |
|---|
| 379 | |
|---|
| 380 | scanNo = cMBrec.scanNo; |
|---|
| 381 | cycleNo = cMBrec.cycleNo; |
|---|
| 382 | |
|---|
| 383 | // Extract MJD. |
|---|
| 384 | Int day, month, year; |
|---|
| 385 | sscanf(cMBrec.datobs, "%4d-%2d-%2d", &year, &month, &day); |
|---|
| 386 | mjd = MVTime(year, month, Double(day)).day() + cMBrec.utc/86400.0; |
|---|
| 387 | |
|---|
| 388 | interval = cMBrec.exposure; |
|---|
| 389 | |
|---|
| 390 | fieldName = trim(cMBrec.srcName); |
|---|
| 391 | srcName = fieldName; |
|---|
| 392 | srcDir(0) = cMBrec.srcRA; |
|---|
| 393 | srcDir(1) = cMBrec.srcDec; |
|---|
| 394 | srcPM(0) = 0.0; |
|---|
| 395 | srcPM(1) = 0.0; |
|---|
| 396 | srcVel = 0.0; |
|---|
| 397 | obsType = trim(cMBrec.obsType); |
|---|
| 398 | |
|---|
| 399 | IFno = cMBrec.IFno[0]; |
|---|
| 400 | Double chanWidth = fabs(cMBrec.fqDelt[0]); |
|---|
| 401 | refFreq = cMBrec.fqRefVal[0]; |
|---|
| 402 | bandwidth = chanWidth * nChan; |
|---|
| 403 | freqInc = cMBrec.fqDelt[0]; |
|---|
| 404 | restFreq = cMBrec.restFreq; |
|---|
| 405 | |
|---|
| 406 | tcal.resize(nPol); |
|---|
| 407 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
|---|
| 408 | tcal(ipol) = cMBrec.tcal[0][ipol]; |
|---|
| 409 | } |
|---|
| 410 | tcalTime = trim(cMBrec.tcalTime); |
|---|
| 411 | azimuth = cMBrec.azimuth; |
|---|
| 412 | elevation = cMBrec.elevation; |
|---|
| 413 | parAngle = cMBrec.parAngle; |
|---|
| 414 | focusAxi = cMBrec.focusAxi; |
|---|
| 415 | focusTan = cMBrec.focusTan; |
|---|
| 416 | focusRot = cMBrec.focusRot; |
|---|
| 417 | |
|---|
| 418 | temperature = cMBrec.temp; |
|---|
| 419 | pressure = cMBrec.pressure; |
|---|
| 420 | humidity = cMBrec.humidity; |
|---|
| 421 | windSpeed = cMBrec.windSpeed; |
|---|
| 422 | windAz = cMBrec.windAz; |
|---|
| 423 | |
|---|
| 424 | refBeam = cMBrec.refBeam; |
|---|
| 425 | beamNo = cMBrec.beamNo; |
|---|
| 426 | |
|---|
| 427 | direction(0) = cMBrec.ra; |
|---|
| 428 | direction(1) = cMBrec.dec; |
|---|
| 429 | scanRate(0) = cMBrec.raRate; |
|---|
| 430 | scanRate(1) = cMBrec.decRate; |
|---|
| 431 | |
|---|
| 432 | tsys.resize(nPol); |
|---|
| 433 | sigma.resize(nPol); |
|---|
| 434 | calFctr.resize(nPol); |
|---|
| 435 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
|---|
| 436 | tsys(ipol) = cMBrec.tsys[0][ipol]; |
|---|
| 437 | sigma(ipol) = tsys(ipol) / 0.81 / sqrt(interval * chanWidth); |
|---|
| 438 | calFctr(ipol) = cMBrec.calfctr[0][ipol]; |
|---|
| 439 | } |
|---|
| 440 | |
|---|
| 441 | if (cMBrec.haveBase) { |
|---|
| 442 | baseLin.resize(2,nPol); |
|---|
| 443 | baseSub.resize(9,nPol); |
|---|
| 444 | |
|---|
| 445 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
|---|
| 446 | baseLin(0,ipol) = cMBrec.baseLin[0][ipol][0]; |
|---|
| 447 | baseLin(1,ipol) = cMBrec.baseLin[0][ipol][1]; |
|---|
| 448 | |
|---|
| 449 | for (uInt j = 0; j < 9; j++) { |
|---|
| 450 | baseSub(j,ipol) = cMBrec.baseSub[0][ipol][j]; |
|---|
| 451 | } |
|---|
| 452 | } |
|---|
| 453 | |
|---|
| 454 | } else { |
|---|
| 455 | baseLin.resize(0,0); |
|---|
| 456 | baseSub.resize(0,0); |
|---|
| 457 | } |
|---|
| 458 | |
|---|
| 459 | if (cGetSpectra && cMBrec.haveSpectra) { |
|---|
| 460 | spectra.resize(nChan,nPol); |
|---|
| 461 | spectra.takeStorage(IPosition(2,nChan,nPol), cMBrec.spectra[0], SHARE); |
|---|
| 462 | |
|---|
| 463 | flagged.resize(nChan,nPol); |
|---|
| 464 | flagged.takeStorage(IPosition(2,nChan,nPol), cMBrec.flagged[0], SHARE); |
|---|
| 465 | |
|---|
| 466 | } else { |
|---|
| 467 | spectra.resize(0,0); |
|---|
| 468 | flagged.resize(0,0); |
|---|
| 469 | } |
|---|
| 470 | |
|---|
| 471 | if (cGetXPol) { |
|---|
| 472 | xCalFctr = Complex(cMBrec.xcalfctr[0][0], cMBrec.xcalfctr[0][1]); |
|---|
| 473 | xPol.resize(nChan); |
|---|
| 474 | xPol.takeStorage(IPosition(1,nChan), (Complex *)cMBrec.xpol[0], SHARE); |
|---|
| 475 | } |
|---|
| 476 | |
|---|
| 477 | return 0; |
|---|
| 478 | } |
|---|
| 479 | |
|---|
| 480 | //-------------------------------------------------------- PKSFITSreader::read |
|---|
| 481 | |
|---|
| 482 | // Read the next data record, just the basics. |
|---|
| 483 | |
|---|
| 484 | Int PKSFITSreader::read( |
|---|
| 485 | Int &IFno, |
|---|
| 486 | Vector<Float> &tsys, |
|---|
| 487 | Vector<Float> &calFctr, |
|---|
| 488 | Matrix<Float> &baseLin, |
|---|
| 489 | Matrix<Float> &baseSub, |
|---|
| 490 | Matrix<Float> &spectra, |
|---|
| 491 | Matrix<uChar> &flagged) |
|---|
| 492 | { |
|---|
| 493 | Int status; |
|---|
| 494 | |
|---|
| 495 | if ((status = cReader->read(cMBrec))) { |
|---|
| 496 | if (status != -1) { |
|---|
| 497 | status = 1; |
|---|
| 498 | } |
|---|
| 499 | |
|---|
| 500 | return status; |
|---|
| 501 | } |
|---|
| 502 | |
|---|
| 503 | IFno = cMBrec.IFno[0]; |
|---|
| 504 | |
|---|
| 505 | uInt nChan = cMBrec.nChan[0]; |
|---|
| 506 | uInt nPol = cMBrec.nPol[0]; |
|---|
| 507 | |
|---|
| 508 | tsys.resize(nPol); |
|---|
| 509 | calFctr.resize(nPol); |
|---|
| 510 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
|---|
| 511 | tsys(ipol) = cMBrec.tsys[0][ipol]; |
|---|
| 512 | calFctr(ipol) = cMBrec.calfctr[0][ipol]; |
|---|
| 513 | } |
|---|
| 514 | |
|---|
| 515 | if (cMBrec.haveBase) { |
|---|
| 516 | baseLin.resize(2,nPol); |
|---|
| 517 | baseSub.resize(9,nPol); |
|---|
| 518 | |
|---|
| 519 | for (uInt ipol = 0; ipol < nPol; ipol++) { |
|---|
| 520 | baseLin(0,ipol) = cMBrec.baseLin[0][ipol][0]; |
|---|
| 521 | baseLin(1,ipol) = cMBrec.baseLin[0][ipol][1]; |
|---|
| 522 | |
|---|
| 523 | for (uInt j = 0; j < 9; j++) { |
|---|
| 524 | baseSub(j,ipol) = cMBrec.baseSub[0][ipol][j]; |
|---|
| 525 | } |
|---|
| 526 | } |
|---|
| 527 | |
|---|
| 528 | } else { |
|---|
| 529 | baseLin.resize(0,0); |
|---|
| 530 | baseSub.resize(0,0); |
|---|
| 531 | } |
|---|
| 532 | |
|---|
| 533 | if (cGetSpectra && cMBrec.haveSpectra) { |
|---|
| 534 | spectra.resize(nChan,nPol); |
|---|
| 535 | spectra.takeStorage(IPosition(2,nChan,nPol), cMBrec.spectra[0], SHARE); |
|---|
| 536 | |
|---|
| 537 | flagged.resize(nChan,nPol); |
|---|
| 538 | flagged.takeStorage(IPosition(2,nChan,nPol), cMBrec.flagged[0], SHARE); |
|---|
| 539 | |
|---|
| 540 | } else { |
|---|
| 541 | spectra.resize(0,0); |
|---|
| 542 | flagged.resize(0,0); |
|---|
| 543 | } |
|---|
| 544 | |
|---|
| 545 | return 0; |
|---|
| 546 | } |
|---|
| 547 | |
|---|
| 548 | //------------------------------------------------------- PKSFITSreader::close |
|---|
| 549 | |
|---|
| 550 | // Close the FITS file. |
|---|
| 551 | |
|---|
| 552 | void PKSFITSreader::close() |
|---|
| 553 | { |
|---|
| 554 | cReader->close(); |
|---|
| 555 | } |
|---|
| 556 | |
|---|
| 557 | //-------------------------------------------------------- PKSFITSreader::trim |
|---|
| 558 | |
|---|
| 559 | // Trim trailing blanks from a null-terminated character string. |
|---|
| 560 | |
|---|
| 561 | char* PKSFITSreader::trim(char *string) |
|---|
| 562 | { |
|---|
| 563 | int j = 0, k = 0; |
|---|
| 564 | while (string[j] != '\0') { |
|---|
| 565 | if (string[j++] != ' ') { |
|---|
| 566 | k = j; |
|---|
| 567 | } |
|---|
| 568 | } |
|---|
| 569 | |
|---|
| 570 | string[k] = '\0'; |
|---|
| 571 | |
|---|
| 572 | return string; |
|---|
| 573 | } |
|---|
