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

Last change on this file was 10318, checked in by stuerze, 3 months ago

bug fixed
File size: 11.2 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: 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 navTypeStr;
152
153 while (stream->status() == QTextStream::Ok && !stream->atEnd()) {
154
155 QString line = stream->readLine();
156 if (line.isEmpty()) {
157 continue;
158 }
159
160 QStringList hlp = line.split(QRegExp("\\s+"), QString::SkipEmptyParts);
161 QString firstStr = hlp.at(0);
162 QString prn;
163
164 if (version() >= 3.0 && firstStr != ">") {
165 prn = firstStr;
166 }
167 else if (version() >= 4.0 && firstStr == ">") {
168 int lines2skip = 0;
169 QString key = hlp.at(1);
170 // EPH is used
171 if (key == "EPH") {
172 navTypeStr = hlp.at(3);
173 }
174 // all others are currently ignored
175 else if (key == "STO") {
176 lines2skip = 2;
177 }
178 else if (key == "EOP" || key == "ION") {
179 lines2skip = 3;
180 }
181 if (lines2skip) {
182 for (int ii = 1; ii < lines2skip; ii++) {
183 stream->readLine();
184 }
185 }
186 continue;
187 }
188 else {
189 if (glonass()) {
190 prn = QString("R%1_0").arg(hlp.at(0).toInt(), 2, 10, QChar('0'));
191 }
192 else {
193 prn = QString("G%1_0").arg(hlp.at(0).toInt(), 2, 10, QChar('0'));
194 }
195 }
196
197 t_eph* eph = 0;
198 QStringList lines; lines << line;
199 if (prn[0] == 'G') {
200 for (int ii = 1; ii < 8; ii++) {
201 lines << stream->readLine();
202 }
203 eph = new t_ephGPS(version(), lines);
204 }
205 else if (prn[0] == 'R') {
206 int num = 4;
207 if (version() >= 3.05) {
208 num += 1;
209 }
210 for (int ii = 1; ii < num; ii++) {
211 lines << stream->readLine();
212 }
213 eph = new t_ephGlo(version(), lines);
214 }
215 else if (prn[0] == 'E') {
216 for (int ii = 1; ii < 8; ii++) {
217 lines << stream->readLine();
218 }
219 eph = new t_ephGal(version(), lines);
220 }
221 else if (prn[0] == 'J') {
222 for (int ii = 1; ii < 8; ii++) {
223 lines << stream->readLine();
224 }
225 eph = new t_ephGPS(version(), lines);
226 }
227 else if (prn[0] == 'S') {
228 for (int ii = 1; ii < 4; ii++) {
229 lines << stream->readLine();
230 }
231 eph = new t_ephSBAS(version(), lines);
232 }
233 else if (prn[0] == 'C') {
234 for (int ii = 1; ii < 8; ii++) {
235 lines << stream->readLine();
236 }
237 eph = new t_ephBDS(version(), lines);
238 }
239 else if (prn[0] == 'I') {
240 for (int ii = 1; ii < 8; ii++) {
241 lines << stream->readLine();
242 }
243 eph = new t_ephGPS(version(), lines);
244 }
245
246 if (version() >= 4.0) {
247 if (eph->setNavType(navTypeStr) != success) {
248 delete eph;
249 continue;
250 }
251 }
252
253 if (eph) {
254 _ephs.push_back(eph);
255 }
256 }
257}
258
259// Read Next Ephemeris
260////////////////////////////////////////////////////////////////////////////
261t_eph* t_rnxNavFile::getNextEph(const bncTime& tt,
262 const QMap<QString, unsigned int>* corrIODs) {
263
264 // Get Ephemeris according to IOD
265 // ------------------------------
266 if (corrIODs) {
267 QMapIterator<QString, unsigned int> itIOD(*corrIODs);
268 while (itIOD.hasNext()) {
269 itIOD.next();
270 QString prn = itIOD.key();
271 unsigned int iod = itIOD.value();
272 vector<t_eph*>::iterator it = _ephs.begin();
273 while (it != _ephs.end()) {
274 t_eph* eph = *it;
275 double dt = eph->TOC() - tt;
276 if (dt < 8*3600.0 && QString(eph->prn().toInternalString().c_str()) == prn && eph->IOD() == iod) {
277 it = _ephs.erase(it);
278 return eph;
279 }
280 ++it;
281 }
282 }
283 }
284
285 // Get Ephemeris according to time
286 // -------------------------------
287 else {
288 vector<t_eph*>::iterator it = _ephs.begin();
289 while (it != _ephs.end()) {
290 t_eph* eph = *it;
291 double dt = eph->TOC() - tt;
292 if (dt < 2*3600.0) {
293 it = _ephs.erase(it);
294 return eph;
295 }
296 ++it;
297 }
298 }
299
300 return 0;
301}
302
303//
304////////////////////////////////////////////////////////////////////////////
305void t_rnxNavFile::writeHeader(const QMap<QString, QString>* txtMap, int numMergedFiles, int leapSecs) {
306
307 QString runBy = BNC_CORE->userName();
308 QStringList comments;
309 QStringList runByDate;
310
311 if (txtMap) {
312 QMapIterator<QString, QString> it(*txtMap);
313 while (it.hasNext()) {
314 it.next();
315 if (it.key() == "RUN BY") {
316 runBy = it.value();
317 }
318 else if (it.key() == "RUN BY DATE") {
319 runByDate = it.value().split("\\n", QString::SkipEmptyParts);
320 }
321 else if (it.key() == "COMMENT") {
322 comments = it.value().split("\\n", QString::SkipEmptyParts);
323 }
324 }
325 }
326
327 if (version() < 3.0) {
328 const QString fmt = glonass() ? "%1 GLONASS navigation data"
329 : "%1 Navigation data";
330 *_stream << QString(fmt)
331 .arg(_header._version, 9, 'f', 2)
332 .leftJustified(60)
333 << "RINEX VERSION / TYPE\n";
334 }
335 else {
336 QString fmt;
337 t_eph::e_type sys = satSystem();
338 switch(sys) {
339 case t_eph::GPS:
340 fmt.append("%1 N: GNSS NAV DATA G: GPS");
341 break;
342 case t_eph::GLONASS:
343 fmt.append("%1 N: GNSS NAV DATA R: GLONASS");
344 break;
345 case t_eph::Galileo:
346 fmt.append("%1 N: GNSS NAV DATA E: Galileo");
347 break;
348 case t_eph::QZSS:
349 fmt.append("%1 N: GNSS NAV DATA J: QZSS");
350 break;
351 case t_eph::BDS:
352 fmt.append("%1 N: GNSS NAV DATA C: BDS");
353 break;
354 case t_eph::IRNSS:
355 fmt.append("%1 N: GNSS NAV DATA I: IRNSS");
356 break;
357 case t_eph::SBAS:
358 fmt.append("%1 N: GNSS NAV DATA S: SBAS");
359 break;
360 case t_eph::unknown:
361 fmt.append("%1 N: GNSS NAV DATA M: MIXED");
362 break;
363 }
364 *_stream << fmt
365 .arg(_header._version, 9, 'f', 2)
366 .leftJustified(60)
367 << "RINEX VERSION / TYPE\n";
368 }
369
370 const QString fmtDate = (version() < 3.0) ? "dd-MMM-yy hh:mm"
371 : "yyyyMMdd hhmmss UTC";
372 *_stream << QString("%1%2%3")
373 .arg(BNC_CORE->pgmName(), -20)
374 .arg(runBy.trimmed().left(20), -20)
375 .arg(QDateTime::currentDateTime().toUTC().toString(fmtDate), -20)
376 .leftJustified(60)
377 << "PGM / RUN BY / DATE\n";
378
379 if (version() >= 4.0) {
380 QStringListIterator itRunByDt(runByDate);
381 while (itRunByDt.hasNext()) {
382 *_stream << itRunByDt.next().trimmed().left(60).leftJustified(60)
383 << "PGM / RUN BY / DATE\n";
384 }
385 *_stream << QString("%1").arg(leapSecs, 6, 10, QLatin1Char(' ')).left(60).leftJustified(60)
386 << "LEAP SECONDS\n";
387
388 *_stream << QString("%1").arg(numMergedFiles, 19, 10, QLatin1Char(' ')).leftJustified(60)
389 << "MERGED FILE\n";
390 }
391
392 QStringListIterator itCmnt(comments);
393 while (itCmnt.hasNext()) {
394 *_stream << itCmnt.next().trimmed().left(60).leftJustified(60) << "COMMENT\n";
395 }
396
397 *_stream << QString()
398 .leftJustified(60)
399 << "END OF HEADER\n";
400}
401
402//
403////////////////////////////////////////////////////////////////////////////
404void t_rnxNavFile::writeEph(const t_eph* eph) {
405 *_stream << eph->toString(version());
406}
Note: See TracBrowser for help on using the repository browser.