source: ntrip/trunk/BNC/src/bncrinex.cpp@ 7249

Last change on this file since 7249 was 7202, checked in by stuerze, 9 years ago

minor changes regarding RINEX file names

File size: 17.2 KB
Line 
1// Part of BNC, a utility for retrieving decoding and
2// converting GNSS data streams from NTRIP broadcasters.
3//
4// Copyright (C) 2007
5// German Federal Agency for Cartography and Geodesy (BKG)
6// http://www.bkg.bund.de
7// Czech Technical University Prague, Department of Geodesy
8// http://www.fsv.cvut.cz
9//
10// Email: euref-ip@bkg.bund.de
11//
12// This program is free software; you can redistribute it and/or
13// modify it under the terms of the GNU General Public License
14// as published by the Free Software Foundation, version 2.
15//
16// This program is distributed in the hope that it will be useful,
17// but WITHOUT ANY WARRANTY; without even the implied warranty of
18// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19// GNU General Public License for more details.
20//
21// You should have received a copy of the GNU General Public License
22// along with this program; if not, write to the Free Software
23// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24
25/* -------------------------------------------------------------------------
26 * BKG NTRIP Client
27 * -------------------------------------------------------------------------
28 *
29 * Class: bncRinex
30 *
31 * Purpose: writes RINEX files
32 *
33 * Author: L. Mervart
34 *
35 * Created: 27-Aug-2006
36 *
37 * Changes:
38 *
39 * -----------------------------------------------------------------------*/
40
41#include <stdlib.h>
42#include <iostream>
43#include <iomanip>
44#include <math.h>
45#include <sstream>
46
47#include <QtCore>
48#include <QUrl>
49#include <QString>
50
51#include "bncrinex.h"
52#include "bnccore.h"
53#include "bncutils.h"
54#include "bncconst.h"
55#include "bnctabledlg.h"
56#include "bncgetthread.h"
57#include "bncnetqueryv1.h"
58#include "bncnetqueryv2.h"
59#include "bncsettings.h"
60#include "bncversion.h"
61
62using namespace std;
63
64// Constructor
65////////////////////////////////////////////////////////////////////////////
66bncRinex::bncRinex(const QByteArray& statID, const QUrl& mountPoint,
67 const QByteArray& latitude, const QByteArray& longitude,
68 const QByteArray& nmea, const QByteArray& ntripVersion) {
69
70 _statID = statID;
71 _mountPoint = mountPoint;
72 _latitude = latitude;
73 _longitude = longitude;
74 _nmea = nmea;
75 _ntripVersion = ntripVersion;
76 _headerWritten = false;
77 _reconnectFlag = false;
78
79 bncSettings settings;
80 _rnxScriptName = settings.value("rnxScript").toString();
81 expandEnvVar(_rnxScriptName);
82
83 _pgmName = QString(BNCPGMNAME).leftJustified(20, ' ', true);
84#ifdef WIN32
85 _userName = QString("${USERNAME}");
86#else
87 _userName = QString("${USER}");
88#endif
89 expandEnvVar(_userName);
90 _userName = _userName.leftJustified(20, ' ', true);
91
92 _samplingRate = settings.value("rnxSampl").toInt();
93
94 _writeRinexFileOnlyWithSkl = settings.value("rnxOnlyWithSKL").toBool();
95
96 _rnxV3filenames = settings.value("rnxV3filenames").toBool();
97}
98
99// Destructor
100////////////////////////////////////////////////////////////////////////////
101bncRinex::~bncRinex() {
102 bncSettings settings;
103 if ((_header.version() >= 3.0) && ( Qt::CheckState(settings.value("rnxAppend").toInt()) != Qt::Checked) ) {
104 _out << "> 4 1" << endl;
105 _out << "END OF FILE" << endl;
106 }
107 _out.close();
108}
109
110// Download Skeleton Header File
111////////////////////////////////////////////////////////////////////////////
112t_irc bncRinex::downloadSkeleton() {
113
114 t_irc irc = failure;
115
116 QStringList table;
117 bncTableDlg::getFullTable(_ntripVersion, _mountPoint.host(),
118 _mountPoint.port(), table, true);
119 QString net;
120 QStringListIterator it(table);
121 while (it.hasNext()) {
122 QString line = it.next();
123 if (line.indexOf("STR") == 0) {
124 QStringList tags = line.split(";");
125 if (tags.size() > 7) {
126 if (tags.at(1) == _mountPoint.path().mid(1).toAscii()) {
127 net = tags.at(7);
128 break;
129 }
130 }
131 }
132 }
133 QString sklDir;
134 if (!net.isEmpty()) {
135 it.toFront();
136 while (it.hasNext()) {
137 QString line = it.next();
138 if (line.indexOf("NET") == 0) {
139 QStringList tags = line.split(";");
140 if (tags.size() > 6) {
141 if (tags.at(1) == net) {
142 sklDir = tags.at(6).trimmed();
143 break;
144 }
145 }
146 }
147 }
148 }
149 if (!sklDir.isEmpty() && sklDir != "none") {
150 QUrl url(sklDir + "/" + _mountPoint.path().mid(1,4).toLower() + ".skl");
151 if (url.port() == -1) {
152 if (sklDir.contains("https", Qt::CaseInsensitive)) {
153 url.setPort(443);
154 }
155 else {
156 url.setPort(80);
157 }
158 }
159
160 bncNetQuery* query = new bncNetQueryV2(true);
161 QByteArray outData;
162 query->waitForRequestResult(url, outData);
163 if (query->status() == bncNetQuery::finished) {
164 irc = success;
165 QTextStream in(outData);
166 _sklHeader.read(&in);
167 }
168
169 delete query;
170 }
171
172 return irc;
173}
174
175// Read Skeleton Header File
176////////////////////////////////////////////////////////////////////////////
177bool bncRinex::readSkeleton() {
178
179 bool readDone = false;
180
181 // Read the local file
182 // -------------------
183 QFile skl(_sklName);
184 if ( skl.exists() && skl.open(QIODevice::ReadOnly) ) {
185 readDone = true;
186 QTextStream in(&skl);
187 _sklHeader.read(&in);
188 }
189
190 // Read downloaded file
191 // --------------------
192 else if ( _ntripVersion != "N" && _ntripVersion != "UN" &&
193 _ntripVersion != "S" ) {
194 QDate currDate = currentDateAndTimeGPS().date();
195 if ( !_skeletonDate.isValid() || _skeletonDate != currDate ) {
196 if (downloadSkeleton() == success) {
197 readDone = true;
198 }
199 _skeletonDate = currDate;
200 } else if (_skeletonDate.isValid()) {
201 readDone = true;
202 }
203 }
204
205 return readDone;
206}
207
208// Next File Epoch (static)
209////////////////////////////////////////////////////////////////////////////
210QString bncRinex::nextEpochStr(const QDateTime& datTim,
211 const QString& intStr, bool rnxV3filenames,
212 QDateTime* nextEpoch) {
213
214 QString epoStr = "";
215
216 QTime nextTime;
217 QDate nextDate;
218
219 int indHlp = intStr.indexOf("min");
220
221 if ( indHlp != -1) {
222 int step = intStr.left(indHlp-1).toInt();
223 if (rnxV3filenames) {
224 epoStr += QString("%1").arg(datTim.time().hour(), 2, 10, QChar('0')); // H
225 } else {
226 epoStr += 'A' + datTim.time().hour();
227 }
228
229 if (datTim.time().minute() >= 60-step) {
230 epoStr += QString("%1").arg(60-step, 2, 10, QChar('0')); // M
231 if (datTim.time().hour() < 23) {
232 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
233 nextDate = datTim.date();
234 }
235 else {
236 nextTime.setHMS(0, 0, 0);
237 nextDate = datTim.date().addDays(1);
238 }
239 }
240 else {
241 for (int limit = step; limit <= 60-step; limit += step) {
242 if (datTim.time().minute() < limit) {
243 epoStr += QString("%1").arg(limit-step, 2, 10, QChar('0')); // M
244 nextTime.setHMS(datTim.time().hour(), limit, 0);
245 nextDate = datTim.date();
246 break;
247 }
248 }
249 }
250 if (rnxV3filenames) {
251 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // S
252 epoStr += QString("_%1M").arg(step, 2, 10, QChar('0')); // period
253 }
254 }
255 else if (intStr == "1 hour") {
256 int step = intStr.left(indHlp-1).toInt();
257 if (rnxV3filenames) {
258 epoStr += QString("%1").arg(datTim.time().hour(), 2, 10, QChar('0')); // H
259 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // M
260 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // S
261 epoStr += QString("_%1H").arg(step+1, 2, 10, QChar('0')); // period
262 } else {
263 epoStr += 'A' + datTim.time().hour();
264 }
265 if (datTim.time().hour() < 23) {
266 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
267 nextDate = datTim.date();
268 }
269 else {
270 nextTime.setHMS(0, 0, 0);
271 nextDate = datTim.date().addDays(1);
272 }
273 }
274 else {
275 int step = intStr.left(indHlp-1).toInt();
276 if (rnxV3filenames) {
277 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // H
278 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // M
279 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // S
280 epoStr += QString("_%1D").arg(step+1, 2, 10, QChar('0')); // period
281 } else {
282 epoStr = "0";
283 }
284 nextTime.setHMS(0, 0, 0);
285 nextDate = datTim.date().addDays(1);
286 }
287
288 if (nextEpoch) {
289 *nextEpoch = QDateTime(nextDate, nextTime);
290 }
291
292 return epoStr;
293}
294
295// File Name according to RINEX Standards
296////////////////////////////////////////////////////////////////////////////
297void bncRinex::resolveFileName(const QDateTime& datTim) {
298
299 bncSettings settings;
300 QString path = settings.value("rnxPath").toString();
301 expandEnvVar(path);
302
303 if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
304 path += QDir::separator();
305 }
306
307 QString hlpStr = nextEpochStr(datTim, settings.value("rnxIntr").toString(),
308 _rnxV3filenames, &_nextCloseEpoch);
309
310 QString ID4 = _statID.left(4);
311
312 // Check name conflict
313 // -------------------
314 QString distStr;
315 int num = 0;
316 QListIterator<QString> it(settings.value("mountPoints").toStringList());
317 while (it.hasNext()) {
318 QString mp = it.next();
319 if (mp.indexOf(ID4) != -1) {
320 ++num;
321 }
322 }
323 if (num > 1) {
324 distStr = "_" + _statID.mid(4);
325 }
326
327 QString sklExt = settings.value("rnxSkel").toString();
328 if (!sklExt.isEmpty()) {
329 _sklName = path + ID4 + distStr + "." + sklExt;
330 }
331
332 if (_rnxV3filenames) {
333 QString country;
334 QString monNum = "0";
335 QString recNum = "0";
336 QListIterator<QString> it(settings.value("mountPoints").toStringList());
337 while (it.hasNext()) {
338 QStringList hlp = it.next().split(" ");
339 if (hlp.size() < 7)
340 continue;
341 if (hlp.join(" ").indexOf(_statID, 0) != -1) {
342 country = hlp[2];
343 }
344 }
345 int sampl = settings.value("rnxSampl").toString().mid(0,2).toInt();
346 if (!sampl)
347 sampl++;
348 path += ID4 +
349 QString("%1").arg(monNum, 1, 10) +
350 QString("%1").arg(recNum, 1, 10) +
351 country +
352 "_S_" + // stream
353 QString("%1").arg(datTim.date().year()) +
354 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
355 hlpStr + // HMS_period
356 QString("_%1S").arg(sampl, 2, 10, QChar('0')) + // sampling rate
357 distStr +
358 "_MO.rnx"; // mixed OBS
359 }
360 else {
361 path += ID4 +
362 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
363 hlpStr + distStr + datTim.toString(".yyO");
364 }
365
366 _fName = path.toAscii();
367}
368
369// Write RINEX Header
370////////////////////////////////////////////////////////////////////////////
371void bncRinex::writeHeader(const QByteArray& format, const bncTime& firstObsTime) {
372
373 bncSettings settings;
374
375 // Set RINEX Version
376 // -----------------
377 int intHeaderVers = (Qt::CheckState(settings.value("rnxV3").toInt()) == Qt::Checked ? 3 : 2);
378
379 // Open the Output File
380 // --------------------
381 QDateTime datTimNom = dateAndTimeFromGPSweek(firstObsTime.gpsw(),
382 floor(firstObsTime.gpssec()+0.5));
383
384 resolveFileName(datTimNom);
385
386 // Read Skeleton Header
387 // --------------------
388 if (readSkeleton()) {
389 _header.set(_sklHeader, intHeaderVers);
390 }
391 else {
392 if (_writeRinexFileOnlyWithSkl) {
393 return;
394 }
395 _header.setDefault(_statID, intHeaderVers);
396 }
397
398 // Append to existing file and return
399 // ----------------------------------
400 if ( QFile::exists(_fName) &&
401 (_reconnectFlag || Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) ) {
402 _out.open(_fName.data(), ios::app);
403 _out.setf(ios::showpoint | ios::fixed);
404 _headerWritten = true;
405 _reconnectFlag = false;
406 }
407 else {
408 _out.open(_fName.data());
409 _addComments.clear();
410 }
411
412 _out.setf(ios::showpoint | ios::fixed);
413
414 // A Few Additional Comments
415 // -------------------------
416 _addComments << format.left(6) + " " + _mountPoint.host() + _mountPoint.path();
417 if (_nmea == "yes") {
418 _addComments << "NMEA LAT=" + _latitude + " " + "LONG=" + _longitude;
419 }
420
421 // Write the Header
422 // ----------------
423 QByteArray headerLines;
424 QTextStream outHlp(&headerLines);
425
426 QMap<QString, QString> txtMap;
427 txtMap["COMMENT"] = _addComments.join("\\n");
428
429 _header.setStartTime(firstObsTime);
430 _header.write(&outHlp, &txtMap);
431
432 outHlp.flush();
433
434 if (!_headerWritten) {
435 _out << headerLines.data();
436 }
437
438 _headerWritten = true;
439}
440
441// Stores Observation into Internal Array
442////////////////////////////////////////////////////////////////////////////
443void bncRinex::deepCopy(t_satObs obs) {
444 _obs.push_back(obs);
445}
446
447// Write One Epoch into the RINEX File
448////////////////////////////////////////////////////////////////////////////
449void bncRinex::dumpEpoch(const QByteArray& format, const bncTime& maxTime) {
450
451 // Select observations older than maxTime
452 // --------------------------------------
453 QList<t_satObs> obsList;
454 QMutableListIterator<t_satObs> mIt(_obs);
455 while (mIt.hasNext()) {
456 t_satObs obs = mIt.next();
457 if (obs._time < maxTime) {
458 obsList.push_back(obs);
459 mIt.remove();
460 }
461 }
462
463 // Easy Return
464 // -----------
465 if (obsList.isEmpty()) {
466 return;
467 }
468
469 // Time of Epoch
470 // -------------
471 const t_satObs& fObs = obsList.first();
472 QDateTime datTimNom = dateAndTimeFromGPSweek(fObs._time.gpsw(), floor(fObs._time.gpssec()+0.5));
473
474 // Close the file
475 // --------------
476 if (_nextCloseEpoch.isValid() && datTimNom >= _nextCloseEpoch) {
477 closeFile();
478 _headerWritten = false;
479 }
480
481 // Write RINEX Header
482 // ------------------
483 if (!_headerWritten) {
484 writeHeader(format, fObs._time);
485 }
486 if (!_headerWritten) {
487 return;
488 }
489
490 // Prepare structure t_rnxEpo
491 // --------------------------
492 t_rnxObsFile::t_rnxEpo rnxEpo;
493 rnxEpo.tt = fObs._time;
494
495 QListIterator<t_satObs> it(obsList);
496 while (it.hasNext()) {
497 const t_satObs& satObs = it.next();
498 t_rnxObsFile::t_rnxSat rnxSat;
499 rnxSat.prn = satObs._prn;
500
501 // Initialize all observations mentioned in skeleton header
502 // --------------------------------------------------------
503 char sys = rnxSat.prn.system();
504 for (int iType = 0; iType < _sklHeader.nTypes(sys); iType++) {
505 QString type = _sklHeader.obsType(sys, iType);
506 t_rnxObsFile::t_rnxObs rnxObs; // create an empty observation
507 rnxSat.obs[type] = rnxObs;
508 }
509
510 for (unsigned ii = 0; ii < satObs._obs.size(); ii++) {
511 const t_frqObs* frqObs = satObs._obs[ii];
512 if (frqObs->_codeValid) {
513 QString type = 'C' + QString(frqObs->_rnxType2ch.c_str());
514 t_rnxObsFile::t_rnxObs rnxObs;
515 rnxObs.value = frqObs->_code;
516 rnxSat.obs[type] = rnxObs;
517 }
518 if (frqObs->_phaseValid) {
519 QString type = 'L' + QString(frqObs->_rnxType2ch.c_str());
520 t_rnxObsFile::t_rnxObs rnxObs;
521 rnxObs.value = frqObs->_phase;
522 if (frqObs->_slip) {
523 rnxObs.lli |= 1;
524 }
525 rnxSat.obs[type] = rnxObs;
526 }
527 if (frqObs->_dopplerValid) {
528 QString type = 'D' + QString(frqObs->_rnxType2ch.c_str());
529 t_rnxObsFile::t_rnxObs rnxObs;
530 rnxObs.value = frqObs->_doppler;
531 rnxSat.obs[type] = rnxObs;
532 }
533 if (frqObs->_snrValid) {
534 QString type = 'S' + QString(frqObs->_rnxType2ch.c_str());
535 t_rnxObsFile::t_rnxObs rnxObs;
536 rnxObs.value = frqObs->_snr;
537 rnxSat.obs[type] = rnxObs;
538 }
539 }
540
541
542 rnxEpo.rnxSat.push_back(rnxSat);
543 }
544
545 // Write the epoch
546 // ---------------
547 QByteArray outLines;
548 QTextStream outStream(&outLines);
549 t_rnxObsFile::writeEpoch(&outStream, _header, &rnxEpo);
550
551 _out << outLines.data();
552 _out.flush();
553}
554
555// Close the Old RINEX File
556////////////////////////////////////////////////////////////////////////////
557void bncRinex::closeFile() {
558
559 if (_header.version() == 3) {
560 _out << "> 4 1" << endl;
561 _out << "END OF FILE" << endl;
562 }
563 _out.close();
564 if (!_rnxScriptName.isEmpty()) {
565 qApp->thread()->wait(100);
566#ifdef WIN32
567 QProcess::startDetached(_rnxScriptName, QStringList() << _fName) ;
568#else
569 QProcess::startDetached("nohup", QStringList() << _rnxScriptName << _fName) ;
570#endif
571
572 }
573}
574
575// One Line in ASCII (Internal) Format
576////////////////////////////////////////////////////////////////////////////
577string bncRinex::asciiSatLine(const t_satObs& obs) {
578
579 ostringstream str;
580 str.setf(ios::showpoint | ios::fixed);
581
582 str << obs._prn.toString() << ' ';
583
584 for (unsigned ii = 0; ii < obs._obs.size(); ii++) {
585 const t_frqObs* frqObs = obs._obs[ii];
586 if (frqObs->_codeValid) {
587 str << " C" << frqObs->_rnxType2ch << ' '
588 << setw(14) << setprecision(3) << frqObs->_code;
589 }
590 if (frqObs->_phaseValid) {
591 str << " L" << frqObs->_rnxType2ch << ' '
592 << setw(14) << setprecision(3) << frqObs->_phase
593 << ' ' << setw(3) << frqObs->_slipCounter;
594 }
595 if (frqObs->_dopplerValid) {
596 str << " D" << frqObs->_rnxType2ch << ' '
597 << setw(14) << setprecision(3) << frqObs->_doppler;
598 }
599 if (frqObs->_snrValid) {
600 str << " S" << frqObs->_rnxType2ch << ' '
601 << setw(8) << setprecision(3) << frqObs->_snr;
602 }
603 }
604
605 return str.str();
606}
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