1 |
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2 | /* -------------------------------------------------------------------------
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3 | * BKG NTRIP Client
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4 | * -------------------------------------------------------------------------
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5 | *
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6 | * Class: bncRinex
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7 | *
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8 | * Purpose: writes RINEX files
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9 | *
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10 | * Author: L. Mervart
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11 | *
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12 | * Created: 27-Aug-2006
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13 | *
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14 | * Changes:
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15 | *
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16 | * -----------------------------------------------------------------------*/
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17 |
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18 | #include <QSettings>
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19 | #include <QDir>
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20 | #include <QDate>
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21 | #include <QFile>
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22 | #include <QTextStream>
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23 | #include <iomanip>
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24 |
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25 | #include "bncrinex.h"
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26 | #include "bncutils.h"
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27 |
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28 | using namespace std;
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29 |
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30 | // Constructor
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31 | ////////////////////////////////////////////////////////////////////////////
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32 | bncRinex::bncRinex(const char* StatID) {
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33 | _statID = StatID;
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34 | _headerWritten = false;
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35 | readSkeleton();
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36 | }
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37 |
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38 | // Destructor
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39 | ////////////////////////////////////////////////////////////////////////////
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40 | bncRinex::~bncRinex() {
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41 | _out.close();
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42 | }
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43 |
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44 | // Read Skeleton Header File
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45 | ////////////////////////////////////////////////////////////////////////////
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46 | void bncRinex::readSkeleton() {
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47 |
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48 | // Resolve Skeleton File Name
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49 | // --------------------------
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50 | QSettings settings;
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51 | QString sklName = settings.value("rnxPath").toString();
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52 | expandEnvVar(sklName);
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53 | if ( sklName[sklName.length()-1] != QDir::separator() ) {
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54 | sklName += QDir::separator();
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55 | }
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56 | sklName += _statID.left(4) + "." + settings.value("rnxSkel").toString();
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57 |
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58 | // Read the File
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59 | // -------------
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60 | QFile skl(sklName);
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61 | if ( skl.exists() && skl.open(QIODevice::ReadOnly) ) {
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62 | QTextStream in(&skl);
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63 | while ( !in.atEnd() ) {
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64 | _headerLines.append( in.readLine() );
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65 | if (_headerLines.last().indexOf("END OF HEADER") != -1) {
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66 | break;
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67 | }
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68 | }
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69 | }
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70 | }
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71 |
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72 | // File Name according to RINEX Standards
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73 | ////////////////////////////////////////////////////////////////////////////
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74 | void bncRinex::resolveFileName(const QDateTime& datTim) {
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75 |
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76 | QSettings settings;
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77 | QString path = settings.value("rnxPath").toString();
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78 | expandEnvVar(path);
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79 |
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80 | if ( path[path.length()-1] != QDir::separator() ) {
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81 | path += QDir::separator();
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82 | }
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83 |
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84 | QChar ch = '0';
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85 |
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86 | path += _statID.left(4) +
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87 | QString("%1%2.%3O").arg(datTim.date().dayOfYear(), 3, 10, QChar('0'))
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88 | .arg(ch)
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89 | .arg(datTim.date().year() % 100,2,10, QChar('0'));
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90 |
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91 | _fName = path.toAscii();
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92 | }
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93 |
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94 | // Write RINEX Header
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95 | ////////////////////////////////////////////////////////////////////////////
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96 | void bncRinex::writeHeader(const QDateTime& datTim) {
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97 |
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98 | // Open the Output File
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99 | // --------------------
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100 | resolveFileName(datTim);
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101 | _out.open(_fName.data());
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102 | _out.setf(ios::showpoint | ios::fixed);
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103 |
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104 | // Copy Skeleton Header
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105 | // --------------------
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106 | if (_headerLines.size() > 0) {
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107 | QStringListIterator it(_headerLines);
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108 | while (it.hasNext()) {
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109 | QString line = it.next();
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110 | if (line.indexOf("# / TYPES OF OBSERV") != -1) {
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111 | _out << " 4 P1 P2 L1 L2"
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112 | " # / TYPES OF OBSERV" << endl;
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113 | }
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114 | else if (line.indexOf("TIME OF FIRST OBS") != -1) {
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115 | _out << datTim.toString(" yyyy MM dd"
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116 | " hh mm ss.zzz0000").toAscii().data();
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117 | _out << " TIME OF FIRST OBS" << endl;
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118 | }
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119 | else {
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120 | _out << line.toAscii().data() << endl;
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121 | }
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122 | }
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123 | }
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124 |
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125 | // Write Dummy Header
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126 | // ------------------
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127 | else {
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128 | double approxPos[3]; approxPos[0] = approxPos[1] = approxPos[2] = 0.0;
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129 | double antennaNEU[3]; antennaNEU[0] = antennaNEU[1] = antennaNEU[2] = 0.0;
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130 |
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131 | _out << " 2.10 OBSERVATION DATA G (GPS) RINEX VERSION / TYPE" << endl;
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132 | _out << "BNC LM 27-Aug-2006 PGM / RUN BY / DATE" << endl;
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133 | _out.setf(ios::left);
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134 | _out << setw(60) << _statID.data() << "MARKER NAME" << endl;
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135 | _out << setw(60) << "BKG" << "OBSERVER / AGENCY" << endl;
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136 | _out << setw(20) << "unknown"
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137 | << setw(20) << "unknown"
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138 | << setw(20) << "unknown" << "REC # / TYPE / VERS" << endl;
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139 | _out << setw(20) << "unknown"
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140 | << setw(20) << "unknown"
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141 | << setw(20) << " " << "ANT # / TYPE" << endl;
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142 | _out.unsetf(ios::left);
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143 | _out << setw(14) << setprecision(4) << approxPos[0]
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144 | << setw(14) << setprecision(4) << approxPos[1]
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145 | << setw(14) << setprecision(4) << approxPos[2]
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146 | << " " << "APPROX POSITION XYZ" << endl;
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147 | _out << setw(14) << setprecision(4) << antennaNEU[0]
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148 | << setw(14) << setprecision(4) << antennaNEU[1]
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149 | << setw(14) << setprecision(4) << antennaNEU[2]
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150 | << " " << "ANTENNA: DELTA H/E/N" << endl;
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151 | _out << " 1 1 WAVELENGTH FACT L1/2" << endl;
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152 | _out << " 4 P1 P2 L1 L2 # / TYPES OF OBSERV" << endl;
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153 | _out << datTim.toString(" yyyy MM dd"
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154 | " hh mm ss.zzz0000").toAscii().data();
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155 | _out << " " << "TIME OF FIRST OBS" << endl;
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156 | _out << " END OF HEADER" << endl;
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157 | }
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158 |
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159 | _headerWritten = true;
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160 | }
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161 |
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162 | // Stores Observation into Internal Array
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163 | ////////////////////////////////////////////////////////////////////////////
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164 | void bncRinex::deepCopy(const Observation* obs) {
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165 | Observation* newObs = new Observation();
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166 | memcpy(newObs, obs, sizeof(*obs));
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167 | _obs.push_back(newObs);
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168 | }
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169 |
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170 | // Write One Epoch into the RINEX File
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171 | ////////////////////////////////////////////////////////////////////////////
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172 | void bncRinex::dumpEpoch() {
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173 |
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174 | // Easy Return
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175 | // -----------
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176 | if (_obs.isEmpty()) {
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177 | return;
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178 | }
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179 |
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180 | // Time of Epoch
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181 | // -------------
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182 | Observation* firstObs = *_obs.begin();
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183 |
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184 | QDateTime datTim = dateAndTimeFromGPSweek( firstObs->GPSWeek,
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185 | firstObs->GPSWeeks +
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186 | fmod(firstObs->sec, 1.0) );
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187 |
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188 | // Write RINEX Header
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189 | // ------------------
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190 | if (!_headerWritten) {
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191 | writeHeader(datTim);
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192 | }
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193 |
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194 | _out << datTim.toString(" yy MM dd hh mm ss.zzz0000").toAscii().data();
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195 |
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196 | QListIterator<Observation*> it(_obs); int iSat = 0;
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197 | while (it.hasNext()) {
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198 | iSat++;
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199 | Observation* ob = it.next();
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200 | _out << " " << setw(2) << int(ob->SVPRN);
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201 | if (iSat == 12 && it.hasNext()) {
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202 | _out << endl << " ";
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203 | iSat = 0;
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204 | }
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205 | }
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206 | _out << endl;
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207 |
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208 | static const double const_c = 299792458.0;
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209 | static const double const_freq1 = 1575420000.0;
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210 | static const double const_freq2 = 1227600000.0;
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211 | static const double const_lambda1 = const_c / const_freq1;
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212 | static const double const_lambda2 = const_c / const_freq2;
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213 |
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214 | it.toFront();
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215 | while (it.hasNext()) {
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216 | Observation* ob = it.next();
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217 |
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218 | char lli = ' ';
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219 | char snr = ' ';
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220 | _out << setw(14) << setprecision(3) << ob->C1 << lli << snr;
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221 | _out << setw(14) << setprecision(3) << ob->P2 << lli << snr;
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222 | _out << setw(14) << setprecision(3) << ob->L1 / const_lambda1 << lli << snr;
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223 | _out << setw(14) << setprecision(3) << ob->L2 / const_lambda2 << lli << snr;
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224 | _out << endl;
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225 |
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226 | delete ob;
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227 | }
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228 |
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229 | _out.flush();
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230 | _obs.clear();
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231 | }
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232 |
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