280 lines
9.7 KiB
C++
280 lines
9.7 KiB
C++
/**
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* \file GeoidEval.cpp
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* \brief Command line utility for evaluating geoid heights
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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="GeoidEval.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/Geoid.hpp>
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#include <GeographicLib/DMS.hpp>
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#include <GeographicLib/Utility.hpp>
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#include <GeographicLib/GeoCoords.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 "GeoidEval.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 cacheall = false, cachearea = false, verbose = false, cubic = true;
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real caches, cachew, cachen, cachee;
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std::string dir;
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std::string geoid = Geoid::DefaultGeoidName();
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Geoid::convertflag heightmult = Geoid::NONE;
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std::string istring, ifile, ofile, cdelim;
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char lsep = ';';
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bool northp = false, longfirst = false;
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int zonenum = UTMUPS::INVALID;
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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 == "-a") {
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cacheall = true;
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cachearea = false;
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}
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else if (arg == "-c") {
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if (m + 4 >= argc) return usage(1, true);
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cacheall = false;
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cachearea = 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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caches, cachew, longfirst);
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DMS::DecodeLatLon(std::string(argv[m + 3]), std::string(argv[m + 4]),
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cachen, cachee, longfirst);
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}
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catch (const std::exception& e) {
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std::cerr << "Error decoding argument of -c: " << e.what() << "\n";
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return 1;
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}
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m += 4;
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} else if (arg == "--msltohae")
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heightmult = Geoid::GEOIDTOELLIPSOID;
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else if (arg == "--haetomsl")
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heightmult = Geoid::ELLIPSOIDTOGEOID;
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else if (arg == "-w")
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longfirst = !longfirst;
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else if (arg == "-z") {
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if (++m == argc) return usage(1, true);
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std::string zone = argv[m];
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try {
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UTMUPS::DecodeZone(zone, zonenum, northp);
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}
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catch (const std::exception& e) {
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std::cerr << "Error decoding zone: " << e.what() << "\n";
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return 1;
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}
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if (!(zonenum >= UTMUPS::MINZONE && zonenum <= UTMUPS::MAXZONE)) {
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std::cerr << "Illegal zone " << zone << "\n";
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return 1;
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}
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} else if (arg == "-n") {
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if (++m == argc) return usage(1, true);
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geoid = argv[m];
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} else if (arg == "-d") {
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if (++m == argc) return usage(1, true);
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dir = argv[m];
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} else if (arg == "-l")
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cubic = false;
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else if (arg == "-v")
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verbose = true;
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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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int retval = usage(!(arg == "-h" || arg == "--help"), arg != "--help");
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if (arg == "-h")
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std::cout
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<< "\nDefault geoid path = \"" << Geoid::DefaultGeoidPath()
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<< "\"\nDefault geoid name = \"" << Geoid::DefaultGeoidName()
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<< "\"\n";
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return retval;
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}
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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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int retval = 0;
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try {
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const Geoid g(geoid, dir, cubic);
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try {
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if (cacheall)
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g.CacheAll();
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else if (cachearea)
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g.CacheArea(caches, cachew, cachen, cachee);
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}
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catch (const std::exception& e) {
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std::cerr << "ERROR: " << e.what() << "\nProceeding without a cache\n";
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}
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if (verbose) {
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std::cerr << "Geoid file: " << g.GeoidFile() << "\n"
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<< "Description: " << g.Description() << "\n"
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<< "Interpolation: " << g.Interpolation() << "\n"
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<< "Date & Time: " << g.DateTime() << "\n"
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<< "Offset (m): " << g.Offset() << "\n"
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<< "Scale (m): " << g.Scale() << "\n"
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<< "Max error (m): " << g.MaxError() << "\n"
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<< "RMS error (m): " << g.RMSError() << "\n";
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if (g.Cache())
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std::cerr
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<< "Caching:"
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<< "\n SW Corner: " << g.CacheSouth() << " " << g.CacheWest()
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<< "\n NE Corner: " << g.CacheNorth() << " " << g.CacheEast()
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<< "\n";
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}
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GeoCoords p;
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std::string s, eol, suff;
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const char* spaces = " \t\n\v\f\r,"; // Include comma as space
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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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std::string::size_type m1 =
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m > 0 ? s.find_last_not_of(spaces, m - 1) : std::string::npos;
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s = s.substr(0, m1 != std::string::npos ? m1 + 1 : m);
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}
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}
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real height = 0;
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if (zonenum != UTMUPS::INVALID) {
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// Expect "easting northing" if heightmult == 0, or
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// "easting northing height" if heightmult != 0.
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std::string::size_type pa = 0, pb = 0;
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real easting = 0, northing = 0;
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for (int i = 0; i < (heightmult ? 3 : 2); ++i) {
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if (pb == std::string::npos)
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throw GeographicErr("Incomplete input: " + s);
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// Start of i'th token
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pa = s.find_first_not_of(spaces, pb);
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if (pa == std::string::npos)
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throw GeographicErr("Incomplete input: " + s);
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// End of i'th token
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pb = s.find_first_of(spaces, pa);
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(i == 2 ? height : (i == 0 ? easting : northing)) =
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Utility::val<real>(s.substr(pa, (pb == std::string::npos ?
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pb : pb - pa)));
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}
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p.Reset(zonenum, northp, easting, northing);
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if (heightmult) {
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suff = pb == std::string::npos ? "" : s.substr(pb);
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s = s.substr(0, pa);
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}
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} else {
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if (heightmult) {
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// Treat last token as height
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// pb = last char of last token
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// pa = last char preceding white space
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// px = last char of 2nd last token
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std::string::size_type pb = s.find_last_not_of(spaces);
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std::string::size_type pa = s.find_last_of(spaces, pb);
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if (pa == std::string::npos || pb == std::string::npos)
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throw GeographicErr("Incomplete input: " + s);
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height = Utility::val<real>(s.substr(pa + 1, pb - pa));
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s = s.substr(0, pa + 1);
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}
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p.Reset(s, true, longfirst);
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}
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if (heightmult) {
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real h = g(p.Latitude(), p.Longitude());
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*output << s
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<< Utility::str(height + real(heightmult) * h, 4)
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<< suff << eol;
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} else {
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real h = g(p.Latitude(), p.Longitude());
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*output << Utility::str(h, 4) << 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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}
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catch (const std::exception& e) {
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std::cerr << "Error reading " << geoid << ": " << e.what() << "\n";
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retval = 1;
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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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