source: ntrip/trunk/BNC/src/rinex/rnxnavfile.cpp@ 10659

Last change on this file since 10659 was 10659, checked in by stuerze, 3 days ago

minor changes
File size: 12.8 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: t_rnxNavFile
30 *
31 * Purpose: Reads RINEX Navigation File
32 *
33 * Author: L. Mervart
34 *
35 * Created: 24-Jan-2012
36 *
37 * Changes:
38 *
39 * -----------------------------------------------------------------------*/
40
41#include <iostream>
42#include <newmatio.h>
43#include "rnxnavfile.h"
44#include "bnccore.h"
45#include "bncutils.h"
46#include "ephemeris.h"
47
48using namespace std;
49
50// Constructor
51////////////////////////////////////////////////////////////////////////////
52t_rnxNavFile::t_rnxNavHeader::t_rnxNavHeader() {
53 _version = 0.0;
54 _glonass = false;
55}
56
57// Destructor
58////////////////////////////////////////////////////////////////////////////
59t_rnxNavFile::t_rnxNavHeader::~t_rnxNavHeader() {
60}
61
62// Read Header
63////////////////////////////////////////////////////////////////////////////
64t_irc t_rnxNavFile::t_rnxNavHeader::read(QTextStream* stream) {
65 while (stream->status() == QTextStream::Ok && !stream->atEnd()) {
66 QString line = stream->readLine();
67 if (line.isEmpty()) {
68 continue;
69 }
70 QString value = line.left(60).trimmed();
71 QString key = line.mid(60).trimmed();
72 if (key == "END OF HEADER") {
73 break;
74 }
75 else if (key == "RINEX VERSION / TYPE") {
76 QTextStream in(value.toLatin1(), QIODevice::ReadOnly);
77 in >> _version;
78 if (value.indexOf("GLONASS") != -1) {
79 _glonass = true;
80 }
81 }
82 else if (key == "COMMENT") {
83 _comments.append(value.trimmed());
84 }
85 else if (key == "PGM / RUN BY / DATE") {
86 _runByDate.append(value.trimmed());
87 }
88 }
89
90 return success;
91}
92
93// Constructor
94////////////////////////////////////////////////////////////////////////////
95t_rnxNavFile::t_rnxNavFile(const QString& fileName, e_inpOut inpOut) {
96 _inpOut = inpOut;
97 _stream = 0;
98 _file = 0;
99 if (_inpOut == input) {
100 openRead(fileName);
101 }
102 else {
103 openWrite(fileName);
104 }
105}
106
107// Open for input
108////////////////////////////////////////////////////////////////////////////
109void t_rnxNavFile::openRead(const QString& fileName) {
110
111 _fileName = fileName; expandEnvVar(_fileName);
112 _file = new QFile(_fileName);
113 _file->open(QIODevice::ReadOnly | QIODevice::Text);
114 _stream = new QTextStream();
115 _stream->setDevice(_file);
116
117 _header.read(_stream);
118 this->read(_stream);
119}
120
121// Open for output
122////////////////////////////////////////////////////////////////////////////
123void t_rnxNavFile::openWrite(const QString& fileName) {
124
125 _fileName = fileName; expandEnvVar(_fileName);
126 _file = new QFile(_fileName);
127 _file->open(QIODevice::WriteOnly | QIODevice::Text);
128 _stream = new QTextStream();
129 _stream->setDevice(_file);
130}
131
132// Destructor
133////////////////////////////////////////////////////////////////////////////
134t_rnxNavFile::~t_rnxNavFile() {
135 close();
136 for (unsigned ii = 0; ii < _ephs.size(); ii++) {
137 delete _ephs[ii];
138 }
139}
140
141// Close
142////////////////////////////////////////////////////////////////////////////
143void t_rnxNavFile::close() {
144 delete _stream; _stream = 0;
145 delete _file; _file = 0;
146}
147
148// Read File Content
149////////////////////////////////////////////////////////////////////////////
150void t_rnxNavFile::read(QTextStream* stream) {
151 QString navType;
152 QString prn;
153
154 while (stream->status() == QTextStream::Ok && !stream->atEnd()) {
155 char sys;
156 QString line = stream->readLine();
157 if (line.isEmpty()) {
158 continue;
159 }
160
161 QStringList hlp = line.split(QRegExp("\\s+"), Qt::SkipEmptyParts);
162 QString firstStr = hlp.at(0);
163
164 // RINEX version 3
165 if (version() >= 3.0 &&
166 version() < 4.0 && firstStr != ">") {
167 prn = firstStr;
168 sys = prn[0].toLatin1();
169 navType = "";
170 }
171 // RINEX version 4
172 else if (version() >= 4.0 && firstStr == ">") {
173 QString key = hlp.at(1);
174 prn = hlp.at(2);
175 sys = prn[0].toLatin1();
176 navType = hlp.at(3);
177
178 // ALL Non-EPH messages are currently ignored
179 int lines2skip = 0;
180 // STO
181 if (key == "STO") {
182 lines2skip = 2;
183 }
184 // EOP
185 else if (key == "EOP") {
186 lines2skip = 3;
187 }
188 // ION
189 else if (key == "ION") {
190 if (sys == 'R') {
191 lines2skip = 1; //if (navType == "LXOC") {}
192 }
193 else if (sys == 'E') {
194 lines2skip = 2;
195 }
196 else if (sys == 'G' || sys == 'C' ||
197 sys == 'J' || sys == 'I') {
198 lines2skip = 3;
199 if ((sys == 'I' && navType == "L1NV") || // I: KLOB, NEQN
200 (sys == 'J' && navType == "CNVX")) { // J: WIDE, JAPN
201 QString navSubType = hlp.at(4);
202 if (navSubType == "KLOB") {
203 lines2skip += 1;
204 }
205 else if (navSubType == "NEQN") {
206 lines2skip += 4;
207 }
208 }
209 }
210 }
211 if (lines2skip) {
212 for (int ii = 0; ii < lines2skip; ii++) {
213 stream->readLine();
214 }
215 }
216 continue;
217 }
218 // RINEX version 2
219 else {
220 if (glonass()) {
221 sys = 'R';
222 }
223 else {
224 sys = 'G';
225 }
226 navType = "";
227 prn = QString("%1").arg(hlp.at(0).toInt(), 2, 10, QChar('0'));
228 }
229
230 t_eph* eph = 0;
231 QStringList lines;
232 lines << line;
233 if (sys == 'G') {
234 int nLines = 8;
235 if (navType == "CNAV") {
236 nLines += 1;
237 }
238 if (navType == "CNV2") {
239 nLines += 2;
240 }
241 for (int ii = 1; ii < nLines; ii++) {
242 lines << stream->readLine();
243 }
244 eph = new t_ephGPS(version(), lines, navType);
245 }
246 else if (sys == 'R') {
247 int nLines = 4;
248 if (version() >= 3.05) {
249 nLines += 1;
250 }
251 for (int ii = 1; ii < nLines; ii++) {
252 lines << stream->readLine();
253 }
254 eph = new t_ephGlo(version(), lines, navType);
255 }
256 else if (sys == 'E') {
257 for (int ii = 1; ii < 8; ii++) {
258 lines << stream->readLine();
259 }
260 eph = new t_ephGal(version(), lines, navType);
261 }
262 else if (sys == 'J') {
263 int nLines = 8;
264 if (navType == "CNAV") {
265 nLines += 1;
266 }
267 if (navType == "CNV2") {
268 nLines += 2;
269 }
270 for (int ii = 1; ii < nLines; ii++) {
271 lines << stream->readLine();
272 }
273 eph = new t_ephGPS(version(), lines, navType);
274 }
275 else if (sys== 'S') {
276 for (int ii = 1; ii < 4; ii++) {
277 lines << stream->readLine();
278 }
279 eph = new t_ephSBAS(version(), lines, navType);
280 }
281 else if (sys == 'C') {
282 int nLines = 8;
283 if (navType == "CNV1" ||
284 navType == "CNV2") {
285 nLines += 2;
286 }
287 if (navType == "CNV3") {
288 nLines += 1;
289 }
290 for (int ii = 1; ii < nLines; ii++) {
291 lines << stream->readLine();
292 }
293 eph = new t_ephBDS(version(), lines, navType);
294 }
295 else if (sys == 'I') {
296 int nLines = 8;
297 if (navType == "L1NV") {
298 nLines += 1;
299 }
300 for (int ii = 1; ii < nLines; ii++) {
301 lines << stream->readLine();
302 }
303 eph = new t_ephGPS(version(), lines, navType);
304 }
305
306 if (eph) {
307 _ephs.push_back(eph);
308 }
309
310 }
311}
312
313// Read Next Ephemeris
314////////////////////////////////////////////////////////////////////////////
315t_eph* t_rnxNavFile::getNextEph(const bncTime& tt,
316 const QMap<QString, unsigned int>* corrIODs) {
317
318 // Get Ephemeris according to IOD
319 // ------------------------------
320 if (corrIODs) {
321 QMapIterator<QString, unsigned int> itIOD(*corrIODs);
322 while (itIOD.hasNext()) {
323 itIOD.next();
324 QString corrPrn = itIOD.key();
325 unsigned int corrIod = itIOD.value();
326 vector<t_eph*>::iterator it = _ephs.begin();
327 while (it != _ephs.end()) {
328 t_eph* eph = *it;
329 double dt = eph->TOC() - tt;
330 QString ephPrn = QString(eph->prn().toInternalString().c_str());
331 unsigned int ephIod = eph->IOD();
332 if (dt < 8*3600.0 &&
333 ephPrn == corrPrn &&
334 ephIod == corrIod) {
335 it = _ephs.erase(it);
336 return eph;
337 }
338 ++it;
339 }
340 }
341 }
342
343 // Get Ephemeris according to time
344 // -------------------------------
345 else {
346 vector<t_eph*>::iterator it = _ephs.begin();
347 while (it != _ephs.end()) {
348 t_eph* eph = *it;
349 double dt = eph->TOC() - tt;
350 char sys = eph->prn().system();
351 int num = eph->prn().number();
352 int ssrNavType = t_corrSSR::getSsrNavTypeFlag(sys, num);
353 if (dt < 2*3600.0 && eph->type() == ssrNavType) {
354 it = _ephs.erase(it);
355 return eph;
356 }
357 ++it;
358 }
359 }
360
361 return 0;
362}
363
364//
365////////////////////////////////////////////////////////////////////////////
366void t_rnxNavFile::writeHeader(const QMap<QString, QString>* txtMap, int numMergedFiles, int leapSecs) {
367
368 QString runBy = BNC_CORE->userName();
369 QStringList comments;
370 QStringList runByDate;
371
372 if (txtMap) {
373 QMapIterator<QString, QString> it(*txtMap);
374 while (it.hasNext()) {
375 it.next();
376 if (it.key() == "RUN BY") {
377 runBy = it.value();
378 }
379 else if (it.key() == "RUN BY DATE") {
380 runByDate = it.value().split("\\n", Qt::SkipEmptyParts);
381 }
382 else if (it.key() == "COMMENT") {
383 comments = it.value().split("\\n", Qt::SkipEmptyParts);
384 }
385 }
386 }
387
388 if (version() < 3.0) {
389 const QString fmt = glonass() ? "%1 GLONASS navigation data"
390 : "%1 Navigation data";
391 *_stream << QString(fmt)
392 .arg(_header._version, 9, 'f', 2)
393 .leftJustified(60)
394 << "RINEX VERSION / TYPE\n";
395 }
396 else {
397 QString fmt;
398 t_eph::e_system sys = satSystem();
399 switch(sys) {
400 case t_eph::GPS:
401 fmt.append("%1 N: GNSS NAV DATA G: GPS");
402 break;
403 case t_eph::GLONASS:
404 fmt.append("%1 N: GNSS NAV DATA R: GLONASS");
405 break;
406 case t_eph::Galileo:
407 fmt.append("%1 N: GNSS NAV DATA E: Galileo");
408 break;
409 case t_eph::QZSS:
410 fmt.append("%1 N: GNSS NAV DATA J: QZSS");
411 break;
412 case t_eph::BDS:
413 fmt.append("%1 N: GNSS NAV DATA C: BDS");
414 break;
415 case t_eph::NavIC:
416 fmt.append("%1 N: GNSS NAV DATA I: NavIC");
417 break;
418 case t_eph::SBAS:
419 fmt.append("%1 N: GNSS NAV DATA S: SBAS");
420 break;
421 case t_eph::unknown:
422 fmt.append("%1 N: GNSS NAV DATA M: MIXED");
423 break;
424 }
425 *_stream << fmt
426 .arg(_header._version, 9, 'f', 2)
427 .leftJustified(60)
428 << "RINEX VERSION / TYPE\n";
429 }
430
431 const QString fmtDate = (version() < 3.0) ? "dd-MMM-yy hh:mm"
432 : "yyyyMMdd hhmmss UTC";
433 *_stream << QString("%1%2%3")
434 .arg(BNC_CORE->pgmName(), -20)
435 .arg(runBy.trimmed().left(20), -20)
436 .arg(QDateTime::currentDateTime().toUTC().toString(fmtDate), -20)
437 .leftJustified(60)
438 << "PGM / RUN BY / DATE\n";
439
440 if (version() >= 4.0) {
441 QStringListIterator itRunByDt(runByDate);
442 while (itRunByDt.hasNext()) {
443 *_stream << itRunByDt.next().trimmed().left(60).leftJustified(60)
444 << "PGM / RUN BY / DATE\n";
445 }
446 *_stream << QString("%1").arg(leapSecs, 6, 10, QLatin1Char(' ')).left(60).leftJustified(60)
447 << "LEAP SECONDS\n";
448
449 *_stream << QString("%1").arg(numMergedFiles, 19, 10, QLatin1Char(' ')).leftJustified(60)
450 << "MERGED FILE\n";
451 }
452
453 QStringListIterator itCmnt(comments);
454 while (itCmnt.hasNext()) {
455 *_stream << itCmnt.next().trimmed().left(60).leftJustified(60) << "COMMENT\n";
456 }
457
458 *_stream << QString()
459 .leftJustified(60)
460 << "END OF HEADER\n";
461}
462
463//
464////////////////////////////////////////////////////////////////////////////
465void t_rnxNavFile::writeEph(const t_eph* eph) {
466 *_stream << eph->toString(version());
467}
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