source: ntrip/trunk/BNC/src/bncrinex.cpp@ 7933

Last change on this file since 7933 was 7878, checked in by stuerze, 9 years ago

minor changes regarding the names of RINEX OBS files
File size: 17.4 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 outData.contains("END OF HEADER")) {
165 QTextStream in(outData);
166 irc = _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 QTextStream in(&skl);
186 if (_sklHeader.read(&in) == success) {
187 readDone = true;
188 }
189 }
190
191 // Read downloaded file
192 // --------------------
193 else if ( _ntripVersion != "N" && _ntripVersion != "UN" &&
194 _ntripVersion != "S" ) {
195 QDate currDate = currentDateAndTimeGPS().date();
196 if ( !_skeletonDate.isValid() || _skeletonDate != currDate ) {
197 if (downloadSkeleton() == success) {
198 readDone = true;
199 _skeletonDate = currDate;
200 }
201 } else if (_skeletonDate.isValid()) {
202 readDone = true;
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("_%1M").arg(step, 2, 10, QChar('0')); // period
252 }
253 }
254 else if (intStr == "1 hour") {
255 int step = intStr.left(indHlp-1).toInt();
256 if (rnxV3filenames) {
257 epoStr += QString("%1").arg(datTim.time().hour(), 2, 10, QChar('0')); // H
258 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // M
259 epoStr += QString("_%1H").arg(step+1, 2, 10, QChar('0')); // period
260 } else {
261 epoStr += 'A' + datTim.time().hour();
262 }
263 if (datTim.time().hour() < 23) {
264 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
265 nextDate = datTim.date();
266 }
267 else {
268 nextTime.setHMS(0, 0, 0);
269 nextDate = datTim.date().addDays(1);
270 }
271 }
272 else {
273 int step = intStr.left(indHlp-1).toInt();
274 if (rnxV3filenames) {
275 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // H
276 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // M
277 epoStr += QString("_%1D").arg(step+1, 2, 10, QChar('0')); // period
278 } else {
279 epoStr = "0";
280 }
281 nextTime.setHMS(0, 0, 0);
282 nextDate = datTim.date().addDays(1);
283 }
284
285 if (nextEpoch) {
286 *nextEpoch = QDateTime(nextDate, nextTime);
287 }
288
289 return epoStr;
290}
291
292// File Name according to RINEX Standards
293////////////////////////////////////////////////////////////////////////////
294void bncRinex::resolveFileName(const QDateTime& datTim) {
295
296 bncSettings settings;
297 QString path = settings.value("rnxPath").toString();
298 expandEnvVar(path);
299
300 if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
301 path += QDir::separator();
302 }
303
304 QString hlpStr = nextEpochStr(datTim, settings.value("rnxIntr").toString(),
305 _rnxV3filenames, &_nextCloseEpoch);
306
307 QString ID4 = _statID.left(4);
308 ID4 = ID4.toUpper();
309
310 // Check name conflict
311 // -------------------
312 QString distStr;
313 int num = 0;
314 QListIterator<QString> it(settings.value("mountPoints").toStringList());
315 while (it.hasNext()) {
316 QString mp = it.next();
317 if (mp.indexOf(ID4) != -1) {
318 ++num;
319 }
320 }
321 if (num > 1) {
322 distStr = "_" + _statID.mid(4);
323 }
324
325 QString sklExt = settings.value("rnxSkel").toString();
326 QString sklPre;
327 if (!sklExt.isEmpty()) {
328 if (sklExt.indexOf("skl",0, Qt::CaseSensitive) != -1) {
329 sklPre = ID4.toLower();
330 } else if (sklExt.indexOf("SKL",0, Qt::CaseSensitive) != -1) {
331 sklPre = ID4.toUpper();
332 }
333 _sklName = path + sklPre + distStr + "." + sklExt;
334 }
335
336 if (_rnxV3filenames) {
337 QString country;
338 QString monNum = "0";
339 QString recNum = "0";
340 QListIterator<QString> it(settings.value("mountPoints").toStringList());
341 while (it.hasNext()) {
342 QStringList hlp = it.next().split(" ");
343 if (hlp.size() < 7)
344 continue;
345 if (hlp.join(" ").indexOf(_statID, 0) != -1) {
346 country = hlp[2];
347 }
348 }
349 int sampl = settings.value("rnxSampl").toString().mid(0,2).toInt();
350 if (!sampl)
351 sampl++;
352 path += ID4 +
353 QString("%1").arg(monNum, 1, 10) +
354 QString("%1").arg(recNum, 1, 10) +
355 country +
356 "_S_" + // stream
357 QString("%1").arg(datTim.date().year()) +
358 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
359 hlpStr + // HMS_period
360 QString("_%1S").arg(sampl, 2, 10, QChar('0')) + // sampling rate
361 distStr +
362 "_MO.rnx"; // mixed OBS
363 }
364 else {
365 path += ID4 +
366 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
367 hlpStr + distStr + datTim.toString(".yyO");
368 }
369
370 _fName = path.toAscii();
371}
372
373// Write RINEX Header
374////////////////////////////////////////////////////////////////////////////
375void bncRinex::writeHeader(const QByteArray& format, const bncTime& firstObsTime) {
376
377 bncSettings settings;
378
379 // Set RINEX Version
380 // -----------------
381 int intHeaderVers = (Qt::CheckState(settings.value("rnxV3").toInt()) == Qt::Checked ? 3 : 2);
382
383 // Open the Output File
384 // --------------------
385 QDateTime datTimNom = dateAndTimeFromGPSweek(firstObsTime.gpsw(),
386 floor(firstObsTime.gpssec()+0.5));
387
388 resolveFileName(datTimNom);
389
390 // Read Skeleton Header
391 // --------------------
392 if (readSkeleton()) {
393 _header.set(_sklHeader, intHeaderVers);
394 }
395 else {
396 if (_writeRinexFileOnlyWithSkl) {
397 return;
398 }
399 _header.setDefault(_statID, intHeaderVers);
400 }
401
402 // Append to existing file and return
403 // ----------------------------------
404 if ( QFile::exists(_fName) &&
405 (_reconnectFlag || Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) ) {
406 _out.open(_fName.data(), ios::app);
407 _out.setf(ios::showpoint | ios::fixed);
408 _headerWritten = true;
409 _reconnectFlag = false;
410 }
411 else {
412 _out.open(_fName.data());
413 _addComments.clear();
414 }
415
416 _out.setf(ios::showpoint | ios::fixed);
417
418 // A Few Additional Comments
419 // -------------------------
420 _addComments << format.left(6) + " " + _mountPoint.host() + _mountPoint.path();
421 if (_nmea == "yes") {
422 _addComments << "NMEA LAT=" + _latitude + " " + "LONG=" + _longitude;
423 }
424
425 // Write the Header
426 // ----------------
427 QByteArray headerLines;
428 QTextStream outHlp(&headerLines);
429
430 QMap<QString, QString> txtMap;
431 txtMap["COMMENT"] = _addComments.join("\\n");
432
433 _header.setStartTime(firstObsTime);
434 _header.write(&outHlp, &txtMap);
435
436 outHlp.flush();
437
438 if (!_headerWritten) {
439 _out << headerLines.data();
440 }
441
442 _headerWritten = true;
443}
444
445// Stores Observation into Internal Array
446////////////////////////////////////////////////////////////////////////////
447void bncRinex::deepCopy(t_satObs obs) {
448 _obs.push_back(obs);
449}
450
451// Write One Epoch into the RINEX File
452////////////////////////////////////////////////////////////////////////////
453void bncRinex::dumpEpoch(const QByteArray& format, const bncTime& maxTime) {
454
455 // Select observations older than maxTime
456 // --------------------------------------
457 QList<t_satObs> obsList;
458 QMutableListIterator<t_satObs> mIt(_obs);
459 while (mIt.hasNext()) {
460 t_satObs obs = mIt.next();
461 if (obs._time < maxTime) {
462 obsList.push_back(obs);
463 mIt.remove();
464 }
465 }
466
467 // Easy Return
468 // -----------
469 if (obsList.isEmpty()) {
470 return;
471 }
472
473 // Time of Epoch
474 // -------------
475 const t_satObs& fObs = obsList.first();
476 QDateTime datTimNom = dateAndTimeFromGPSweek(fObs._time.gpsw(), floor(fObs._time.gpssec()+0.5));
477
478 // Close the file
479 // --------------
480 if (_nextCloseEpoch.isValid() && datTimNom >= _nextCloseEpoch) {
481 closeFile();
482 _headerWritten = false;
483 }
484
485 // Write RINEX Header
486 // ------------------
487 if (!_headerWritten) {
488 writeHeader(format, fObs._time);
489 }
490 if (!_headerWritten) {
491 return;
492 }
493
494 // Prepare structure t_rnxEpo
495 // --------------------------
496 t_rnxObsFile::t_rnxEpo rnxEpo;
497 rnxEpo.tt = fObs._time;
498
499 QListIterator<t_satObs> it(obsList);
500 while (it.hasNext()) {
501 const t_satObs& satObs = it.next();
502 t_rnxObsFile::t_rnxSat rnxSat;
503 rnxSat.prn = satObs._prn;
504
505 // Initialize all observations mentioned in skeleton header
506 // --------------------------------------------------------
507 char sys = rnxSat.prn.system();
508 for (int iType = 0; iType < _sklHeader.nTypes(sys); iType++) {
509 QString type = _sklHeader.obsType(sys, iType);
510 t_rnxObsFile::t_rnxObs rnxObs; // create an empty observation
511 rnxSat.obs[type] = rnxObs;
512 }
513
514 for (unsigned ii = 0; ii < satObs._obs.size(); ii++) {
515 const t_frqObs* frqObs = satObs._obs[ii];
516 if (frqObs->_codeValid) {
517 QString type = 'C' + QString(frqObs->_rnxType2ch.c_str());
518 t_rnxObsFile::t_rnxObs rnxObs;
519 rnxObs.value = frqObs->_code;
520 rnxSat.obs[type] = rnxObs;
521 }
522 if (frqObs->_phaseValid) {
523 QString type = 'L' + QString(frqObs->_rnxType2ch.c_str());
524 t_rnxObsFile::t_rnxObs rnxObs;
525 rnxObs.value = frqObs->_phase;
526 if (frqObs->_slip) {
527 rnxObs.lli |= 1;
528 }
529 rnxSat.obs[type] = rnxObs;
530 }
531 if (frqObs->_dopplerValid) {
532 QString type = 'D' + QString(frqObs->_rnxType2ch.c_str());
533 t_rnxObsFile::t_rnxObs rnxObs;
534 rnxObs.value = frqObs->_doppler;
535 rnxSat.obs[type] = rnxObs;
536 }
537 if (frqObs->_snrValid) {
538 QString type = 'S' + QString(frqObs->_rnxType2ch.c_str());
539 t_rnxObsFile::t_rnxObs rnxObs;
540 rnxObs.value = frqObs->_snr;
541 rnxSat.obs[type] = rnxObs;
542 }
543 }
544
545
546 rnxEpo.rnxSat.push_back(rnxSat);
547 }
548
549 // Write the epoch
550 // ---------------
551 QByteArray outLines;
552 QTextStream outStream(&outLines);
553 t_rnxObsFile::writeEpoch(&outStream, _header, &rnxEpo);
554
555 _out << outLines.data();
556 _out.flush();
557}
558
559// Close the Old RINEX File
560////////////////////////////////////////////////////////////////////////////
561void bncRinex::closeFile() {
562
563 if (_header.version() == 3) {
564 _out << "> 4 1" << endl;
565 _out << "END OF FILE" << endl;
566 }
567 _out.close();
568 if (!_rnxScriptName.isEmpty()) {
569 qApp->thread()->wait(100);
570#ifdef WIN32
571 QProcess::startDetached(_rnxScriptName, QStringList() << _fName) ;
572#else
573 QProcess::startDetached("nohup", QStringList() << _rnxScriptName << _fName) ;
574#endif
575
576 }
577}
578
579// One Line in ASCII (Internal) Format
580////////////////////////////////////////////////////////////////////////////
581string bncRinex::asciiSatLine(const t_satObs& obs) {
582
583 ostringstream str;
584 str.setf(ios::showpoint | ios::fixed);
585
586 str << obs._prn.toString();
587
588 for (unsigned ii = 0; ii < obs._obs.size(); ii++) {
589 const t_frqObs* frqObs = obs._obs[ii];
590 if (frqObs->_codeValid) {
591 str << ' '
592 << left << setw(3) << "C" + frqObs->_rnxType2ch << ' '
593 << right << setw(14) << setprecision(3) << frqObs->_code;
594 }
595 if (frqObs->_phaseValid) {
596 str << ' '
597 << left << setw(3) << "L" + frqObs->_rnxType2ch << ' '
598 << right << setw(14) << setprecision(3) << frqObs->_phase << ' '
599 << right << setw(4) << frqObs->_slipCounter;
600 }
601 if (frqObs->_dopplerValid) {
602 str << ' '
603 << left << setw(3) << "D" + frqObs->_rnxType2ch << ' '
604 << right << setw(14) << setprecision(3) << frqObs->_doppler;
605 }
606 if (frqObs->_snrValid) {
607 str << ' '
608 << left << setw(3) << "S" + frqObs->_rnxType2ch << ' '
609 << right << setw(8) << setprecision(3) << frqObs->_snr;
610 }
611 }
612
613 return str.str();
614}
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