source: ntrip/trunk/BNC/src/bncrinex.cpp@ 7647

Last change on this file since 7647 was 7505, checked in by stuerze, 9 years ago

small bug in rinex v3 file name generation fixed

File size: 17.0 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 irc = success;
166 QTextStream in(outData);
167 _sklHeader.read(&in);
168 }
169
170 delete query;
171 }
172
173 return irc;
174}
175
176// Read Skeleton Header File
177////////////////////////////////////////////////////////////////////////////
178bool bncRinex::readSkeleton() {
179
180 bool readDone = false;
181
182 // Read the local file
183 // -------------------
184 QFile skl(_sklName);
185 if ( skl.exists() && skl.open(QIODevice::ReadOnly) ) {
186 readDone = true;
187 QTextStream in(&skl);
188 _sklHeader.read(&in);
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 }
200 _skeletonDate = currDate;
201 } else if (_skeletonDate.isValid()) {
202 readDone = true;
203 }
204 }
205
206 return readDone;
207}
208
209// Next File Epoch (static)
210////////////////////////////////////////////////////////////////////////////
211QString bncRinex::nextEpochStr(const QDateTime& datTim,
212 const QString& intStr, bool rnxV3filenames,
213 QDateTime* nextEpoch) {
214
215 QString epoStr = "";
216
217 QTime nextTime;
218 QDate nextDate;
219
220 int indHlp = intStr.indexOf("min");
221
222 if ( indHlp != -1) {
223 int step = intStr.left(indHlp-1).toInt();
224 if (rnxV3filenames) {
225 epoStr += QString("%1").arg(datTim.time().hour(), 2, 10, QChar('0')); // H
226 } else {
227 epoStr += 'A' + datTim.time().hour();
228 }
229
230 if (datTim.time().minute() >= 60-step) {
231 epoStr += QString("%1").arg(60-step, 2, 10, QChar('0')); // M
232 if (datTim.time().hour() < 23) {
233 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
234 nextDate = datTim.date();
235 }
236 else {
237 nextTime.setHMS(0, 0, 0);
238 nextDate = datTim.date().addDays(1);
239 }
240 }
241 else {
242 for (int limit = step; limit <= 60-step; limit += step) {
243 if (datTim.time().minute() < limit) {
244 epoStr += QString("%1").arg(limit-step, 2, 10, QChar('0')); // M
245 nextTime.setHMS(datTim.time().hour(), limit, 0);
246 nextDate = datTim.date();
247 break;
248 }
249 }
250 }
251 if (rnxV3filenames) {
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("_%1H").arg(step+1, 2, 10, QChar('0')); // period
261 } else {
262 epoStr += 'A' + datTim.time().hour();
263 }
264 if (datTim.time().hour() < 23) {
265 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
266 nextDate = datTim.date();
267 }
268 else {
269 nextTime.setHMS(0, 0, 0);
270 nextDate = datTim.date().addDays(1);
271 }
272 }
273 else {
274 int step = intStr.left(indHlp-1).toInt();
275 if (rnxV3filenames) {
276 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // H
277 epoStr += QString("%1").arg(0, 2, 10, QChar('0')); // M
278 epoStr += QString("_%1D").arg(step+1, 2, 10, QChar('0')); // period
279 } else {
280 epoStr = "0";
281 }
282 nextTime.setHMS(0, 0, 0);
283 nextDate = datTim.date().addDays(1);
284 }
285
286 if (nextEpoch) {
287 *nextEpoch = QDateTime(nextDate, nextTime);
288 }
289
290 return epoStr;
291}
292
293// File Name according to RINEX Standards
294////////////////////////////////////////////////////////////////////////////
295void bncRinex::resolveFileName(const QDateTime& datTim) {
296
297 bncSettings settings;
298 QString path = settings.value("rnxPath").toString();
299 expandEnvVar(path);
300
301 if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
302 path += QDir::separator();
303 }
304
305 QString hlpStr = nextEpochStr(datTim, settings.value("rnxIntr").toString(),
306 _rnxV3filenames, &_nextCloseEpoch);
307
308 QString ID4 = _statID.left(4);
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 if (!sklExt.isEmpty()) {
327 _sklName = path + ID4 + distStr + "." + sklExt;
328 }
329
330 if (_rnxV3filenames) {
331 QString country;
332 QString monNum = "0";
333 QString recNum = "0";
334 QListIterator<QString> it(settings.value("mountPoints").toStringList());
335 while (it.hasNext()) {
336 QStringList hlp = it.next().split(" ");
337 if (hlp.size() < 7)
338 continue;
339 if (hlp.join(" ").indexOf(_statID, 0) != -1) {
340 country = hlp[2];
341 }
342 }
343 int sampl = settings.value("rnxSampl").toString().mid(0,2).toInt();
344 if (!sampl)
345 sampl++;
346 path += ID4 +
347 QString("%1").arg(monNum, 1, 10) +
348 QString("%1").arg(recNum, 1, 10) +
349 country +
350 "_S_" + // stream
351 QString("%1").arg(datTim.date().year()) +
352 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
353 hlpStr + // HMS_period
354 QString("_%1S").arg(sampl, 2, 10, QChar('0')) + // sampling rate
355 distStr +
356 "_MO.rnx"; // mixed OBS
357 }
358 else {
359 path += ID4 +
360 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
361 hlpStr + distStr + datTim.toString(".yyO");
362 }
363
364 _fName = path.toAscii();
365}
366
367// Write RINEX Header
368////////////////////////////////////////////////////////////////////////////
369void bncRinex::writeHeader(const QByteArray& format, const bncTime& firstObsTime) {
370
371 bncSettings settings;
372
373 // Set RINEX Version
374 // -----------------
375 int intHeaderVers = (Qt::CheckState(settings.value("rnxV3").toInt()) == Qt::Checked ? 3 : 2);
376
377 // Open the Output File
378 // --------------------
379 QDateTime datTimNom = dateAndTimeFromGPSweek(firstObsTime.gpsw(),
380 floor(firstObsTime.gpssec()+0.5));
381
382 resolveFileName(datTimNom);
383
384 // Read Skeleton Header
385 // --------------------
386 if (readSkeleton()) {
387 _header.set(_sklHeader, intHeaderVers);
388 }
389 else {
390 if (_writeRinexFileOnlyWithSkl) {
391 return;
392 }
393 _header.setDefault(_statID, intHeaderVers);
394 }
395
396 // Append to existing file and return
397 // ----------------------------------
398 if ( QFile::exists(_fName) &&
399 (_reconnectFlag || Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) ) {
400 _out.open(_fName.data(), ios::app);
401 _out.setf(ios::showpoint | ios::fixed);
402 _headerWritten = true;
403 _reconnectFlag = false;
404 }
405 else {
406 _out.open(_fName.data());
407 _addComments.clear();
408 }
409
410 _out.setf(ios::showpoint | ios::fixed);
411
412 // A Few Additional Comments
413 // -------------------------
414 _addComments << format.left(6) + " " + _mountPoint.host() + _mountPoint.path();
415 if (_nmea == "yes") {
416 _addComments << "NMEA LAT=" + _latitude + " " + "LONG=" + _longitude;
417 }
418
419 // Write the Header
420 // ----------------
421 QByteArray headerLines;
422 QTextStream outHlp(&headerLines);
423
424 QMap<QString, QString> txtMap;
425 txtMap["COMMENT"] = _addComments.join("\\n");
426
427 _header.setStartTime(firstObsTime);
428 _header.write(&outHlp, &txtMap);
429
430 outHlp.flush();
431
432 if (!_headerWritten) {
433 _out << headerLines.data();
434 }
435
436 _headerWritten = true;
437}
438
439// Stores Observation into Internal Array
440////////////////////////////////////////////////////////////////////////////
441void bncRinex::deepCopy(t_satObs obs) {
442 _obs.push_back(obs);
443}
444
445// Write One Epoch into the RINEX File
446////////////////////////////////////////////////////////////////////////////
447void bncRinex::dumpEpoch(const QByteArray& format, const bncTime& maxTime) {
448
449 // Select observations older than maxTime
450 // --------------------------------------
451 QList<t_satObs> obsList;
452 QMutableListIterator<t_satObs> mIt(_obs);
453 while (mIt.hasNext()) {
454 t_satObs obs = mIt.next();
455 if (obs._time < maxTime) {
456 obsList.push_back(obs);
457 mIt.remove();
458 }
459 }
460
461 // Easy Return
462 // -----------
463 if (obsList.isEmpty()) {
464 return;
465 }
466
467 // Time of Epoch
468 // -------------
469 const t_satObs& fObs = obsList.first();
470 QDateTime datTimNom = dateAndTimeFromGPSweek(fObs._time.gpsw(), floor(fObs._time.gpssec()+0.5));
471
472 // Close the file
473 // --------------
474 if (_nextCloseEpoch.isValid() && datTimNom >= _nextCloseEpoch) {
475 closeFile();
476 _headerWritten = false;
477 }
478
479 // Write RINEX Header
480 // ------------------
481 if (!_headerWritten) {
482 writeHeader(format, fObs._time);
483 }
484 if (!_headerWritten) {
485 return;
486 }
487
488 // Prepare structure t_rnxEpo
489 // --------------------------
490 t_rnxObsFile::t_rnxEpo rnxEpo;
491 rnxEpo.tt = fObs._time;
492
493 QListIterator<t_satObs> it(obsList);
494 while (it.hasNext()) {
495 const t_satObs& satObs = it.next();
496 t_rnxObsFile::t_rnxSat rnxSat;
497 rnxSat.prn = satObs._prn;
498
499 // Initialize all observations mentioned in skeleton header
500 // --------------------------------------------------------
501 char sys = rnxSat.prn.system();
502 for (int iType = 0; iType < _sklHeader.nTypes(sys); iType++) {
503 QString type = _sklHeader.obsType(sys, iType);
504 t_rnxObsFile::t_rnxObs rnxObs; // create an empty observation
505 rnxSat.obs[type] = rnxObs;
506 }
507
508 for (unsigned ii = 0; ii < satObs._obs.size(); ii++) {
509 const t_frqObs* frqObs = satObs._obs[ii];
510 if (frqObs->_codeValid) {
511 QString type = 'C' + QString(frqObs->_rnxType2ch.c_str());
512 t_rnxObsFile::t_rnxObs rnxObs;
513 rnxObs.value = frqObs->_code;
514 rnxSat.obs[type] = rnxObs;
515 }
516 if (frqObs->_phaseValid) {
517 QString type = 'L' + QString(frqObs->_rnxType2ch.c_str());
518 t_rnxObsFile::t_rnxObs rnxObs;
519 rnxObs.value = frqObs->_phase;
520 if (frqObs->_slip) {
521 rnxObs.lli |= 1;
522 }
523 rnxSat.obs[type] = rnxObs;
524 }
525 if (frqObs->_dopplerValid) {
526 QString type = 'D' + QString(frqObs->_rnxType2ch.c_str());
527 t_rnxObsFile::t_rnxObs rnxObs;
528 rnxObs.value = frqObs->_doppler;
529 rnxSat.obs[type] = rnxObs;
530 }
531 if (frqObs->_snrValid) {
532 QString type = 'S' + QString(frqObs->_rnxType2ch.c_str());
533 t_rnxObsFile::t_rnxObs rnxObs;
534 rnxObs.value = frqObs->_snr;
535 rnxSat.obs[type] = rnxObs;
536 }
537 }
538
539
540 rnxEpo.rnxSat.push_back(rnxSat);
541 }
542
543 // Write the epoch
544 // ---------------
545 QByteArray outLines;
546 QTextStream outStream(&outLines);
547 t_rnxObsFile::writeEpoch(&outStream, _header, &rnxEpo);
548
549 _out << outLines.data();
550 _out.flush();
551}
552
553// Close the Old RINEX File
554////////////////////////////////////////////////////////////////////////////
555void bncRinex::closeFile() {
556
557 if (_header.version() == 3) {
558 _out << "> 4 1" << endl;
559 _out << "END OF FILE" << endl;
560 }
561 _out.close();
562 if (!_rnxScriptName.isEmpty()) {
563 qApp->thread()->wait(100);
564#ifdef WIN32
565 QProcess::startDetached(_rnxScriptName, QStringList() << _fName) ;
566#else
567 QProcess::startDetached("nohup", QStringList() << _rnxScriptName << _fName) ;
568#endif
569
570 }
571}
572
573// One Line in ASCII (Internal) Format
574////////////////////////////////////////////////////////////////////////////
575string bncRinex::asciiSatLine(const t_satObs& obs) {
576
577 ostringstream str;
578 str.setf(ios::showpoint | ios::fixed);
579
580 str << obs._prn.toString() << ' ';
581
582 for (unsigned ii = 0; ii < obs._obs.size(); ii++) {
583 const t_frqObs* frqObs = obs._obs[ii];
584 if (frqObs->_codeValid) {
585 str << " C" << frqObs->_rnxType2ch << ' '
586 << setw(14) << setprecision(3) << frqObs->_code;
587 }
588 if (frqObs->_phaseValid) {
589 str << " L" << frqObs->_rnxType2ch << ' '
590 << setw(14) << setprecision(3) << frqObs->_phase
591 << ' ' << setw(3) << frqObs->_slipCounter;
592 }
593 if (frqObs->_dopplerValid) {
594 str << " D" << frqObs->_rnxType2ch << ' '
595 << setw(14) << setprecision(3) << frqObs->_doppler;
596 }
597 if (frqObs->_snrValid) {
598 str << " S" << frqObs->_rnxType2ch << ' '
599 << setw(8) << setprecision(3) << frqObs->_snr;
600 }
601 }
602
603 return str.str();
604}
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