source: ntrip/trunk/BNC/src/bncrinex.cpp@ 6226

Last change on this file since 6226 was 6226, checked in by mervart, 8 years ago
File size: 14.3 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
95// Destructor
96////////////////////////////////////////////////////////////////////////////
97bncRinex::~bncRinex() {
98 bncSettings settings;
99 if ((_header.version() >= 3.0) && ( Qt::CheckState(settings.value("rnxAppend").toInt()) != Qt::Checked) ) {
100 _out << "> 4 1" << endl;
101 _out << "END OF FILE" << endl;
102 }
103 _out.close();
104}
105
106// Download Skeleton Header File
107////////////////////////////////////////////////////////////////////////////
108t_irc bncRinex::downloadSkeleton() {
109
110 t_irc irc = failure;
111
112 QStringList table;
113 bncTableDlg::getFullTable(_ntripVersion, _mountPoint.host(),
114 _mountPoint.port(), table, true);
115 QString net;
116 QStringListIterator it(table);
117 while (it.hasNext()) {
118 QString line = it.next();
119 if (line.indexOf("STR") == 0) {
120 QStringList tags = line.split(";");
121 if (tags.size() > 7) {
122 if (tags.at(1) == _mountPoint.path().mid(1).toAscii()) {
123 net = tags.at(7);
124 break;
125 }
126 }
127 }
128 }
129 QString sklDir;
130 if (!net.isEmpty()) {
131 it.toFront();
132 while (it.hasNext()) {
133 QString line = it.next();
134 if (line.indexOf("NET") == 0) {
135 QStringList tags = line.split(";");
136 if (tags.size() > 6) {
137 if (tags.at(1) == net) {
138 sklDir = tags.at(6).trimmed();
139 break;
140 }
141 }
142 }
143 }
144 }
145 if (!sklDir.isEmpty() && sklDir != "none") {
146 QUrl url(sklDir + "/" + _mountPoint.path().mid(1,4).toLower() + ".skl");
147 if (url.port() == -1) {
148 url.setPort(80);
149 }
150
151 bncNetQuery* query;
152 if (_ntripVersion == "2s") {
153 query = new bncNetQueryV2(true);
154 }
155 else if (_ntripVersion == "2") {
156 query = new bncNetQueryV2(false);
157 }
158 else {
159 query = new bncNetQueryV1;
160 }
161
162 QByteArray outData;
163 query->waitForRequestResult(url, outData);
164 if (query->status() == bncNetQuery::finished) {
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 }
202 }
203
204 return readDone;
205}
206
207// Next File Epoch (static)
208////////////////////////////////////////////////////////////////////////////
209QString bncRinex::nextEpochStr(const QDateTime& datTim,
210 const QString& intStr, QDateTime* nextEpoch) {
211
212 QString epoStr;
213
214 QTime nextTime;
215 QDate nextDate;
216
217 int indHlp = intStr.indexOf("min");
218
219 if ( indHlp != -1) {
220 int step = intStr.left(indHlp-1).toInt();
221 char ch = 'A' + datTim.time().hour();
222 epoStr = ch;
223 if (datTim.time().minute() >= 60-step) {
224 epoStr += QString("%1").arg(60-step, 2, 10, QChar('0'));
225 if (datTim.time().hour() < 23) {
226 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
227 nextDate = datTim.date();
228 }
229 else {
230 nextTime.setHMS(0, 0, 0);
231 nextDate = datTim.date().addDays(1);
232 }
233 }
234 else {
235 for (int limit = step; limit <= 60-step; limit += step) {
236 if (datTim.time().minute() < limit) {
237 epoStr += QString("%1").arg(limit-step, 2, 10, QChar('0'));
238 nextTime.setHMS(datTim.time().hour(), limit, 0);
239 nextDate = datTim.date();
240 break;
241 }
242 }
243 }
244 }
245 else if (intStr == "1 hour") {
246 char ch = 'A' + datTim.time().hour();
247 epoStr = ch;
248 if (datTim.time().hour() < 23) {
249 nextTime.setHMS(datTim.time().hour() + 1 , 0, 0);
250 nextDate = datTim.date();
251 }
252 else {
253 nextTime.setHMS(0, 0, 0);
254 nextDate = datTim.date().addDays(1);
255 }
256 }
257 else {
258 epoStr = "0";
259 nextTime.setHMS(0, 0, 0);
260 nextDate = datTim.date().addDays(1);
261 }
262
263 if (nextEpoch) {
264 *nextEpoch = QDateTime(nextDate, nextTime);
265 }
266
267 return epoStr;
268}
269
270// File Name according to RINEX Standards
271////////////////////////////////////////////////////////////////////////////
272void bncRinex::resolveFileName(const QDateTime& datTim) {
273
274 bncSettings settings;
275 QString path = settings.value("rnxPath").toString();
276 expandEnvVar(path);
277
278 if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
279 path += QDir::separator();
280 }
281
282 QString hlpStr = nextEpochStr(datTim, settings.value("rnxIntr").toString(),
283 &_nextCloseEpoch);
284
285 QString ID4 = _statID.left(4);
286
287 // Check name conflict
288 // -------------------
289 QString distStr;
290 int num = 0;
291 QListIterator<QString> it(settings.value("mountPoints").toStringList());
292 while (it.hasNext()) {
293 QString mp = it.next();
294 if (mp.indexOf(ID4) != -1) {
295 ++num;
296 }
297 }
298 if (num > 1) {
299 distStr = "_" + _statID.mid(4);
300 }
301
302 QString sklExt = settings.value("rnxSkel").toString();
303 if (!sklExt.isEmpty()) {
304 _sklName = path + ID4 + distStr + "." + sklExt;
305 }
306
307 path += ID4 +
308 QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0')) +
309 hlpStr + distStr + datTim.toString(".yyO");
310
311 _fName = path.toAscii();
312}
313
314// Write RINEX Header
315////////////////////////////////////////////////////////////////////////////
316void bncRinex::writeHeader(const QByteArray& format,
317 const QDateTime& datTimNom) {
318
319 bncSettings settings;
320
321 // Open the Output File
322 // --------------------
323 resolveFileName(datTimNom);
324
325 // Append to existing file and return
326 // ----------------------------------
327 if ( QFile::exists(_fName) &&
328 (_reconnectFlag || Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) ) {
329 _out.open(_fName.data(), ios::app);
330 _out.setf(ios::showpoint | ios::fixed);
331 _headerWritten = true;
332 _reconnectFlag = false;
333 }
334 else {
335 _out.open(_fName.data());
336 }
337
338 _out.setf(ios::showpoint | ios::fixed);
339
340 // Set RINEX Version
341 // -----------------
342 int intHeaderVers = (Qt::CheckState(settings.value("rnxV3").toInt()) == Qt::Checked ? 3 : 2);
343
344 // Read Skeleton Header
345 // --------------------
346 if (readSkeleton()) {
347 _header.set(_sklHeader, intHeaderVers);
348 }
349 else {
350 _header.setDefault(_statID, intHeaderVers);
351 }
352
353 // A Few Additional Comments
354 // -------------------------
355 _addComments << format.left(6) + " " + _mountPoint.host() + _mountPoint.path();
356 if (_nmea == "yes") {
357 _addComments << "NMEA LAT=" + _latitude + " " + "LONG=" + _longitude;
358 }
359
360 // Write the Header
361 // ----------------
362 QByteArray headerLines;
363 QTextStream outHlp(&headerLines);
364
365 QMap<QString, QString> txtMap;
366 txtMap["COMMENT"] = _addComments.join("\\n");
367
368 _header.write(&outHlp, &txtMap);
369
370 outHlp.flush();
371
372 if (!_headerWritten) {
373 _out << headerLines.data();
374 }
375
376 _headerWritten = true;
377}
378
379// Stores Observation into Internal Array
380////////////////////////////////////////////////////////////////////////////
381void bncRinex::deepCopy(t_satObs obs) {
382 _obs.push_back(obs);
383}
384
385// Write One Epoch into the RINEX File
386////////////////////////////////////////////////////////////////////////////
387void bncRinex::dumpEpoch(const QByteArray& format, long maxTime) {
388
389 // Select observations older than maxTime
390 // --------------------------------------
391 QList<t_satObs> obsList;
392 QMutableListIterator<t_satObs> mIt(_obs);
393 while (mIt.hasNext()) {
394 t_satObs obs = mIt.next();
395 if (obs._time.gpsw() * 7*24*3600 + obs._time.gpssec() < maxTime - 0.05) {
396 obsList.push_back(obs);
397 mIt.remove();
398 }
399 }
400
401 // Easy Return
402 // -----------
403 if (obsList.isEmpty()) {
404 return;
405 }
406
407 // Time of Epoch
408 // -------------
409 const t_satObs& fObs = obsList.first();
410 QDateTime datTim = dateAndTimeFromGPSweek(fObs._time.gpsw(), fObs._time.gpssec());
411 QDateTime datTimNom = dateAndTimeFromGPSweek(fObs._time.gpsw(), floor(fObs._time.gpssec()+0.5));
412
413 // Close the file
414 // --------------
415 if (_nextCloseEpoch.isValid() && datTimNom >= _nextCloseEpoch) {
416 closeFile();
417 _headerWritten = false;
418 }
419
420 // Write RINEX Header
421 // ------------------
422 if (!_headerWritten) {
423 _header.setStartTime(fObs._time);
424 writeHeader(format, datTimNom);
425 }
426
427 // Prepare structure t_rnxEpo
428 // --------------------------
429 t_rnxObsFile::t_rnxEpo rnxEpo;
430 rnxEpo.tt = fObs._time;
431
432 QListIterator<t_satObs> it(obsList);
433 while (it.hasNext()) {
434 const t_satObs& satObs = it.next();
435 t_rnxObsFile::t_rnxSat rnxSat;
436 rnxSat.prn = satObs._prn;
437 for (unsigned ii = 0; ii < satObs._obs.size(); ii++) {
438 const t_frqObs* frqObs = satObs._obs[ii];
439 if (frqObs->_codeValid) {
440 QString type = 'C' + QString(frqObs->_rnxType2ch.c_str());
441 t_rnxObsFile::t_rnxObs rnxObs;
442 rnxObs.value = frqObs->_code;
443 rnxSat.obs[type] = rnxObs;
444 }
445 if (frqObs->_phaseValid) {
446 QString type = 'L' + QString(frqObs->_rnxType2ch.c_str());
447 t_rnxObsFile::t_rnxObs rnxObs;
448 rnxObs.value = frqObs->_phase;
449 rnxSat.obs[type] = rnxObs;
450 }
451 if (frqObs->_dopplerValid) {
452 QString type = 'D' + QString(frqObs->_rnxType2ch.c_str());
453 t_rnxObsFile::t_rnxObs rnxObs;
454 rnxObs.value = frqObs->_doppler;
455 rnxSat.obs[type] = rnxObs;
456 }
457 if (frqObs->_snrValid) {
458 QString type = 'S' + QString(frqObs->_rnxType2ch.c_str());
459 t_rnxObsFile::t_rnxObs rnxObs;
460 rnxObs.value = frqObs->_snr;
461 rnxSat.obs[type] = rnxObs;
462 }
463 }
464
465
466 rnxEpo.rnxSat.push_back(rnxSat);
467 }
468
469 // Write the epoch
470 // ---------------
471 QByteArray outLines;
472 QTextStream outStream(&outLines);
473 t_rnxObsFile::writeEpoch(&outStream, _header, &rnxEpo);
474
475 _out << outLines.data();
476 _out.flush();
477}
478
479// Close the Old RINEX File
480////////////////////////////////////////////////////////////////////////////
481void bncRinex::closeFile() {
482 if (_header.version() == 3) {
483 _out << "> 4 1" << endl;
484 _out << "END OF FILE" << endl;
485 }
486 _out.close();
487 if (!_rnxScriptName.isEmpty()) {
488 qApp->thread()->wait(100);
489#ifdef WIN32
490 QProcess::startDetached(_rnxScriptName, QStringList() << _fName) ;
491#else
492 QProcess::startDetached("nohup", QStringList() << _rnxScriptName << _fName) ;
493#endif
494
495 }
496}
497
498// One Line in ASCII (Internal) Format
499////////////////////////////////////////////////////////////////////////////
500string bncRinex::asciiSatLine(const t_satObs& obs) {
501
502 ostringstream str;
503 str.setf(ios::showpoint | ios::fixed);
504
505 str << obs._prn.toString() << ' ';
506
507 for (unsigned ii = 0; ii < obs._obs.size(); ii++) {
508 const t_frqObs* frqObs = obs._obs[ii];
509 if (frqObs->_codeValid) {
510 str << " C" << frqObs->_rnxType2ch << ' '
511 << setw(14) << setprecision(3) << frqObs->_code;
512 }
513 if (frqObs->_phaseValid) {
514 str << " L" << frqObs->_rnxType2ch << ' '
515 << setw(14) << setprecision(3) << frqObs->_phase
516 << ' ' << setw(3) << frqObs->_slipCounter;
517 }
518 if (frqObs->_dopplerValid) {
519 str << " D" << frqObs->_rnxType2ch << ' '
520 << setw(14) << setprecision(3) << frqObs->_doppler;
521 }
522 if (frqObs->_snrValid) {
523 str << " S" << frqObs->_rnxType2ch << ' '
524 << setw(8) << setprecision(3) << frqObs->_snr;
525 }
526 }
527
528 return str.str();
529}
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