[3645] | 1 | // Part of BNC, a utility for retrieving decoding and
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| 2 | // converting GNSS data streams from NTRIP broadcasters.
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| 3 | //
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| 4 | // Copyright (C) 2007
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| 5 | // German Federal Agency for Cartography and Geodesy (BKG)
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| 6 | // http://www.bkg.bund.de
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| 7 | // Czech Technical University Prague, Department of Geodesy
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| 8 | // http://www.fsv.cvut.cz
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| 9 | //
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| 10 | // Email: euref-ip@bkg.bund.de
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| 11 | //
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| 12 | // This program is free software; you can redistribute it and/or
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| 13 | // modify it under the terms of the GNU General Public License
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| 14 | // as published by the Free Software Foundation, version 2.
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| 15 | //
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| 16 | // This program is distributed in the hope that it will be useful,
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| 17 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | // GNU General Public License for more details.
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| 20 | //
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| 21 | // You should have received a copy of the GNU General Public License
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| 22 | // along with this program; if not, write to the Free Software
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| 23 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 24 |
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| 25 | /* -------------------------------------------------------------------------
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| 26 | * BKG NTRIP Client
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| 27 | * -------------------------------------------------------------------------
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| 28 | *
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| 29 | * Class: t_rnxNavFile
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| 30 | *
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| 31 | * Purpose: Reads RINEX Navigation File
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| 32 | *
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| 33 | * Author: L. Mervart
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| 34 | *
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| 35 | * Created: 24-Jan-2012
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| 36 | *
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| 37 | * Changes:
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| 38 | *
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| 39 | * -----------------------------------------------------------------------*/
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| 40 |
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| 41 | #include <iostream>
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| 42 | #include "rnxnavfile.h"
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[3657] | 43 | #include "bncutils.h"
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[3659] | 44 | #include "RTCM3/ephemeris.h"
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[3645] | 45 |
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| 46 | using namespace std;
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| 47 |
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| 48 | // Constructor
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| 49 | ////////////////////////////////////////////////////////////////////////////
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[3657] | 50 | t_rnxNavFile::t_rnxNavHeader::t_rnxNavHeader() {
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| 51 | _version = 0.0;
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[3659] | 52 | _glonass = false;
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[3645] | 53 | }
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| 54 |
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| 55 | // Destructor
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| 56 | ////////////////////////////////////////////////////////////////////////////
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[3657] | 57 | t_rnxNavFile::t_rnxNavHeader::~t_rnxNavHeader() {
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| 58 | }
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| 59 |
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| 60 | // Read Header
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| 61 | ////////////////////////////////////////////////////////////////////////////
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| 62 | t_irc t_rnxNavFile::t_rnxNavHeader::read(QTextStream* stream) {
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| 63 | while (stream->status() == QTextStream::Ok && !stream->atEnd()) {
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| 64 | QString line = stream->readLine();
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| 65 | if (line.isEmpty()) {
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| 66 | continue;
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| 67 | }
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| 68 | QString value = line.left(60).trimmed();
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| 69 | QString key = line.mid(60).trimmed();
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| 70 | if (key == "END OF HEADER") {
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| 71 | break;
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| 72 | }
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| 73 | else if (key == "RINEX VERSION / TYPE") {
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| 74 | QTextStream in(value.toAscii(), QIODevice::ReadOnly);
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| 75 | in >> _version;
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[3659] | 76 | if (value.indexOf("GLONASS") != -1) {
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| 77 | _glonass = true;
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| 78 | }
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[3657] | 79 | }
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| 80 | }
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| 81 |
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| 82 | return success;
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| 83 | }
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| 84 |
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| 85 | // Constructor
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| 86 | ////////////////////////////////////////////////////////////////////////////
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[3658] | 87 | t_rnxNavFile::t_rnxNavFile(QString fileName) {
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[3657] | 88 | expandEnvVar(fileName);
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| 89 | _file = new QFile(fileName);
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| 90 | _file->open(QIODevice::ReadOnly | QIODevice::Text);
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| 91 | _stream = new QTextStream();
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| 92 | _stream->setDevice(_file);
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| 93 | _header.read(_stream);
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| 94 | }
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| 95 |
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| 96 | // Destructor
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| 97 | ////////////////////////////////////////////////////////////////////////////
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[3645] | 98 | t_rnxNavFile::~t_rnxNavFile() {
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[3657] | 99 | delete _stream;
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| 100 | delete _file;
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[3645] | 101 | }
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| 102 |
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[3659] | 103 | // Read Next Ephemeris
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| 104 | ////////////////////////////////////////////////////////////////////////////
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| 105 | t_irc t_rnxNavFile::getNextEph(t_eph* eph) {
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| 106 |
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| 107 | while (_stream->status() == QTextStream::Ok && !_stream->atEnd()) {
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| 108 | QString line = _stream->readLine();
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| 109 | if (line.isEmpty()) {
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| 110 | continue;
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| 111 | }
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| 112 | QStringList hlp = line.split(QRegExp("\\s+"), QString::SkipEmptyParts);
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| 113 | QString prn;
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| 114 | if (version() >= 3.0) {
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| 115 | prn = hlp.at(0);
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| 116 | }
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| 117 | else {
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| 118 | if (glonass()) {
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| 119 | prn = 'R' + QString("%1").arg(hlp.at(0).toInt(), 2, QChar('0'));
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| 120 | }
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| 121 | else {
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| 122 | prn = 'G' + QString("%1").arg(hlp.at(0).toInt(), 2, QChar('0'));
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| 123 | }
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| 124 | }
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| 125 | QStringList lines; lines << line;
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| 126 | if (prn[0] == 'G') {
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| 127 | for (int ii = 1; ii < 8; ii++) {
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| 128 | lines << _stream->readLine();
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| 129 | }
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| 130 | eph = new t_ephGPS(version(), lines);
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| 131 | }
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| 132 | else if (prn[0] == 'R') {
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| 133 | for (int ii = 1; ii < 4; ii++) {
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| 134 | lines << _stream->readLine();
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| 135 | }
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| 136 | eph = new t_ephGlo(version(), lines);
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| 137 | }
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| 138 | else if (prn[0] == 'E') {
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| 139 | for (int ii = 1; ii < 8; ii++) {
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| 140 | lines << _stream->readLine();
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| 141 | }
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| 142 | eph = new t_ephGal(version(), lines);
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| 143 | }
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| 144 | else {
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| 145 | return failure;
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| 146 | }
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| 147 | if (!eph->ok()) {
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| 148 | delete eph;
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| 149 | eph = 0;
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| 150 | return failure;
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| 151 | }
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| 152 | }
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| 153 |
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| 154 | return success;
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| 155 | }
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