ADD: new track message, Entity class and Position class
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Henry Winkel
231
libs/geographiclib/tools/GeodesicProj.cpp
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231
libs/geographiclib/tools/GeodesicProj.cpp
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/**
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* \file GeodesicProj.cpp
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* \brief Command line utility for geodesic projections
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*
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* Copyright (c) Charles Karney (2009-2017) <charles@karney.com> and licensed
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* under the MIT/X11 License. For more information, see
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* https://geographiclib.sourceforge.io/
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*
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* See the <a href="GeodesicProj.1.html">man page</a> for usage information.
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**********************************************************************/
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <fstream>
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#include <GeographicLib/Geodesic.hpp>
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#include <GeographicLib/AzimuthalEquidistant.hpp>
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#include <GeographicLib/CassiniSoldner.hpp>
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#include <GeographicLib/Gnomonic.hpp>
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#include <GeographicLib/DMS.hpp>
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#include <GeographicLib/Utility.hpp>
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#if defined(_MSC_VER)
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// Squelch warnings about constant conditional expressions and potentially
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// uninitialized local variables
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# pragma warning (disable: 4127 4701)
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#endif
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#include "GeodesicProj.usage"
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int main(int argc, const char* const argv[]) {
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try {
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using namespace GeographicLib;
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typedef Math::real real;
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Utility::set_digits();
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bool azimuthal = false, cassini = false, gnomonic = false, reverse = false,
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longfirst = false;
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real lat0 = 0, lon0 = 0;
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real
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a = Constants::WGS84_a(),
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f = Constants::WGS84_f();
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int prec = 6;
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std::string istring, ifile, ofile, cdelim;
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char lsep = ';';
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for (int m = 1; m < argc; ++m) {
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std::string arg(argv[m]);
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if (arg == "-r")
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reverse = true;
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else if (arg == "-c" || arg == "-z" || arg == "-g") {
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cassini = azimuthal = gnomonic = false;
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cassini = arg == "-c";
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azimuthal = arg == "-z";
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gnomonic = arg == "-g";
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if (m + 2 >= argc) return usage(1, true);
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try {
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DMS::DecodeLatLon(std::string(argv[m + 1]), std::string(argv[m + 2]),
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lat0, lon0, longfirst);
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}
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catch (const std::exception& e) {
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std::cerr << "Error decoding arguments of " << arg << ": "
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<< e.what() << "\n";
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return 1;
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}
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m += 2;
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} else if (arg == "-e") {
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if (m + 2 >= argc) return usage(1, true);
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try {
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a = Utility::val<real>(std::string(argv[m + 1]));
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f = Utility::fract<real>(std::string(argv[m + 2]));
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}
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catch (const std::exception& e) {
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std::cerr << "Error decoding arguments of -e: " << e.what() << "\n";
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return 1;
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}
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m += 2;
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} else if (arg == "-w")
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longfirst = !longfirst;
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else if (arg == "-p") {
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if (++m == argc) return usage(1, true);
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try {
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prec = Utility::val<int>(std::string(argv[m]));
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}
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catch (const std::exception&) {
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std::cerr << "Precision " << argv[m] << " is not a number\n";
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return 1;
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}
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} else if (arg == "--input-string") {
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if (++m == argc) return usage(1, true);
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istring = argv[m];
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} else if (arg == "--input-file") {
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if (++m == argc) return usage(1, true);
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ifile = argv[m];
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} else if (arg == "--output-file") {
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if (++m == argc) return usage(1, true);
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ofile = argv[m];
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} else if (arg == "--line-separator") {
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if (++m == argc) return usage(1, true);
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if (std::string(argv[m]).size() != 1) {
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std::cerr << "Line separator must be a single character\n";
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return 1;
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}
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lsep = argv[m][0];
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} else if (arg == "--comment-delimiter") {
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if (++m == argc) return usage(1, true);
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cdelim = argv[m];
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} else if (arg == "--version") {
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std::cout << argv[0] << ": GeographicLib version "
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<< GEOGRAPHICLIB_VERSION_STRING << "\n";
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return 0;
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} else
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return usage(!(arg == "-h" || arg == "--help"), arg != "--help");
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}
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if (!ifile.empty() && !istring.empty()) {
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std::cerr << "Cannot specify --input-string and --input-file together\n";
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return 1;
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}
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if (ifile == "-") ifile.clear();
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std::ifstream infile;
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std::istringstream instring;
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if (!ifile.empty()) {
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infile.open(ifile.c_str());
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if (!infile.is_open()) {
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std::cerr << "Cannot open " << ifile << " for reading\n";
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return 1;
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}
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} else if (!istring.empty()) {
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std::string::size_type m = 0;
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while (true) {
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m = istring.find(lsep, m);
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if (m == std::string::npos)
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break;
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istring[m] = '\n';
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}
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instring.str(istring);
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}
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std::istream* input = !ifile.empty() ? &infile :
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(!istring.empty() ? &instring : &std::cin);
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std::ofstream outfile;
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if (ofile == "-") ofile.clear();
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if (!ofile.empty()) {
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outfile.open(ofile.c_str());
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if (!outfile.is_open()) {
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std::cerr << "Cannot open " << ofile << " for writing\n";
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return 1;
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}
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}
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std::ostream* output = !ofile.empty() ? &outfile : &std::cout;
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if (!(azimuthal || cassini || gnomonic)) {
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std::cerr << "Must specify \"-z lat0 lon0\" or "
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<< "\"-c lat0 lon0\" or \"-g lat0 lon0\"\n";
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return 1;
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}
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const Geodesic geod(a, f);
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const CassiniSoldner cs = cassini ?
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CassiniSoldner(lat0, lon0, geod) : CassiniSoldner(geod);
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const AzimuthalEquidistant az(geod);
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const Gnomonic gn(geod);
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// Max precision = 10: 0.1 nm in distance, 10^-15 deg (= 0.11 nm),
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// 10^-11 sec (= 0.3 nm).
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prec = std::min(10 + Math::extra_digits(), std::max(0, prec));
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std::string s, eol, stra, strb, strc;
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std::istringstream str;
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int retval = 0;
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std::cout << std::fixed;
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while (std::getline(*input, s)) {
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try {
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eol = "\n";
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if (!cdelim.empty()) {
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std::string::size_type m = s.find(cdelim);
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if (m != std::string::npos) {
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eol = " " + s.substr(m) + "\n";
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s = s.substr(0, m);
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}
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}
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str.clear(); str.str(s);
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real lat, lon, x, y, azi, rk;
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if (!(str >> stra >> strb))
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throw GeographicErr("Incomplete input: " + s);
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if (reverse) {
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x = Utility::val<real>(stra);
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y = Utility::val<real>(strb);
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} else
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DMS::DecodeLatLon(stra, strb, lat, lon, longfirst);
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if (str >> strc)
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throw GeographicErr("Extraneous input: " + strc);
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if (reverse) {
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if (cassini)
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cs.Reverse(x, y, lat, lon, azi, rk);
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else if (azimuthal)
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az.Reverse(lat0, lon0, x, y, lat, lon, azi, rk);
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else
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gn.Reverse(lat0, lon0, x, y, lat, lon, azi, rk);
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*output << Utility::str(longfirst ? lon : lat, prec + 5) << " "
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<< Utility::str(longfirst ? lat : lon, prec + 5) << " "
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<< Utility::str(azi, prec + 5) << " "
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<< Utility::str(rk, prec + 6) << eol;
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} else {
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if (cassini)
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cs.Forward(lat, lon, x, y, azi, rk);
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else if (azimuthal)
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az.Forward(lat0, lon0, lat, lon, x, y, azi, rk);
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else
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gn.Forward(lat0, lon0, lat, lon, x, y, azi, rk);
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*output << Utility::str(x, prec) << " "
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<< Utility::str(y, prec) << " "
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<< Utility::str(azi, prec + 5) << " "
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<< Utility::str(rk, prec + 6) << eol;
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}
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}
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catch (const std::exception& e) {
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*output << "ERROR: " << e.what() << "\n";
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retval = 1;
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}
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}
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return retval;
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}
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catch (const std::exception& e) {
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std::cerr << "Caught exception: " << e.what() << "\n";
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return 1;
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}
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catch (...) {
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std::cerr << "Caught unknown exception\n";
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return 1;
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}
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}
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