GeoidEval.cpp
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/**
* \file GeoidEval.cpp
* \brief Command line utility for evaluating geoid heights
*
* Copyright (c) Charles Karney (2009-2017) <karney@alum.mit.edu> and licensed
* under the MIT/X11 License. For more information, see
* https://geographiclib.sourceforge.io/
*
* See the <a href="GeoidEval.1.html">man page</a> for usage information.
**********************************************************************/
#include <iostream>
#include <string>
#include <sstream>
#include <fstream>
#include <GeographicLib/Geoid.hpp>
#include <GeographicLib/DMS.hpp>
#include <GeographicLib/Utility.hpp>
#include <GeographicLib/GeoCoords.hpp>
#if defined(_MSC_VER)
// Squelch warnings about constant conditional expressions and potentially
// uninitialized local variables
# pragma warning (disable: 4127 4701)
#endif
#include "GeoidEval.usage"
int main(int argc, const char* const argv[]) {
try {
using namespace GeographicLib;
typedef Math::real real;
Utility::set_digits();
bool cacheall = false, cachearea = false, verbose = false, cubic = true;
real caches, cachew, cachen, cachee;
std::string dir;
std::string geoid = Geoid::DefaultGeoidName();
Geoid::convertflag heightmult = Geoid::NONE;
std::string istring, ifile, ofile, cdelim;
char lsep = ';';
bool northp = false, longfirst = false;
int zonenum = UTMUPS::INVALID;
for (int m = 1; m < argc; ++m) {
std::string arg(argv[m]);
if (arg == "-a") {
cacheall = true;
cachearea = false;
}
else if (arg == "-c") {
if (m + 4 >= argc) return usage(1, true);
cacheall = false;
cachearea = true;
try {
DMS::DecodeLatLon(std::string(argv[m + 1]), std::string(argv[m + 2]),
caches, cachew, longfirst);
DMS::DecodeLatLon(std::string(argv[m + 3]), std::string(argv[m + 4]),
cachen, cachee, longfirst);
}
catch (const std::exception& e) {
std::cerr << "Error decoding argument of -c: " << e.what() << "\n";
return 1;
}
m += 4;
} else if (arg == "--msltohae")
heightmult = Geoid::GEOIDTOELLIPSOID;
else if (arg == "--haetomsl")
heightmult = Geoid::ELLIPSOIDTOGEOID;
else if (arg == "-w")
longfirst = !longfirst;
else if (arg == "-z") {
if (++m == argc) return usage(1, true);
std::string zone = argv[m];
try {
UTMUPS::DecodeZone(zone, zonenum, northp);
}
catch (const std::exception& e) {
std::cerr << "Error decoding zone: " << e.what() << "\n";
return 1;
}
if (!(zonenum >= UTMUPS::MINZONE && zonenum <= UTMUPS::MAXZONE)) {
std::cerr << "Illegal zone " << zone << "\n";
return 1;
}
} else if (arg == "-n") {
if (++m == argc) return usage(1, true);
geoid = argv[m];
} else if (arg == "-d") {
if (++m == argc) return usage(1, true);
dir = argv[m];
} else if (arg == "-l")
cubic = false;
else if (arg == "-v")
verbose = true;
else if (arg == "--input-string") {
if (++m == argc) return usage(1, true);
istring = argv[m];
} else if (arg == "--input-file") {
if (++m == argc) return usage(1, true);
ifile = argv[m];
} else if (arg == "--output-file") {
if (++m == argc) return usage(1, true);
ofile = argv[m];
} else if (arg == "--line-separator") {
if (++m == argc) return usage(1, true);
if (std::string(argv[m]).size() != 1) {
std::cerr << "Line separator must be a single character\n";
return 1;
}
lsep = argv[m][0];
} else if (arg == "--comment-delimiter") {
if (++m == argc) return usage(1, true);
cdelim = argv[m];
} else if (arg == "--version") {
std::cout << argv[0] << ": GeographicLib version "
<< GEOGRAPHICLIB_VERSION_STRING << "\n";
return 0;
} else {
int retval = usage(!(arg == "-h" || arg == "--help"), arg != "--help");
if (arg == "-h")
std::cout
<< "\nDefault geoid path = \"" << Geoid::DefaultGeoidPath()
<< "\"\nDefault geoid name = \"" << Geoid::DefaultGeoidName()
<< "\"\n";
return retval;
}
}
if (!ifile.empty() && !istring.empty()) {
std::cerr << "Cannot specify --input-string and --input-file together\n";
return 1;
}
if (ifile == "-") ifile.clear();
std::ifstream infile;
std::istringstream instring;
if (!ifile.empty()) {
infile.open(ifile.c_str());
if (!infile.is_open()) {
std::cerr << "Cannot open " << ifile << " for reading\n";
return 1;
}
} else if (!istring.empty()) {
std::string::size_type m = 0;
while (true) {
m = istring.find(lsep, m);
if (m == std::string::npos)
break;
istring[m] = '\n';
}
instring.str(istring);
}
std::istream* input = !ifile.empty() ? &infile :
(!istring.empty() ? &instring : &std::cin);
std::ofstream outfile;
if (ofile == "-") ofile.clear();
if (!ofile.empty()) {
outfile.open(ofile.c_str());
if (!outfile.is_open()) {
std::cerr << "Cannot open " << ofile << " for writing\n";
return 1;
}
}
std::ostream* output = !ofile.empty() ? &outfile : &std::cout;
int retval = 0;
try {
const Geoid g(geoid, dir, cubic);
try {
if (cacheall)
g.CacheAll();
else if (cachearea)
g.CacheArea(caches, cachew, cachen, cachee);
}
catch (const std::exception& e) {
std::cerr << "ERROR: " << e.what() << "\nProceeding without a cache\n";
}
if (verbose) {
std::cerr << "Geoid file: " << g.GeoidFile() << "\n"
<< "Description: " << g.Description() << "\n"
<< "Interpolation: " << g.Interpolation() << "\n"
<< "Date & Time: " << g.DateTime() << "\n"
<< "Offset (m): " << g.Offset() << "\n"
<< "Scale (m): " << g.Scale() << "\n"
<< "Max error (m): " << g.MaxError() << "\n"
<< "RMS error (m): " << g.RMSError() << "\n";
if (g.Cache())
std::cerr
<< "Caching:"
<< "\n SW Corner: " << g.CacheSouth() << " " << g.CacheWest()
<< "\n NE Corner: " << g.CacheNorth() << " " << g.CacheEast()
<< "\n";
}
GeoCoords p;
std::string s, eol, suff;
const char* spaces = " \t\n\v\f\r,"; // Include comma as space
while (std::getline(*input, s)) {
try {
eol = "\n";
if (!cdelim.empty()) {
std::string::size_type m = s.find(cdelim);
if (m != std::string::npos) {
eol = " " + s.substr(m) + "\n";
std::string::size_type m1 =
m > 0 ? s.find_last_not_of(spaces, m - 1) : std::string::npos;
s = s.substr(0, m1 != std::string::npos ? m1 + 1 : m);
}
}
real height = 0;
if (zonenum != UTMUPS::INVALID) {
// Expect "easting northing" if heightmult == 0, or
// "easting northing height" if heightmult != 0.
std::string::size_type pa = 0, pb = 0;
real easting = 0, northing = 0;
for (int i = 0; i < (heightmult ? 3 : 2); ++i) {
if (pb == std::string::npos)
throw GeographicErr("Incomplete input: " + s);
// Start of i'th token
pa = s.find_first_not_of(spaces, pb);
if (pa == std::string::npos)
throw GeographicErr("Incomplete input: " + s);
// End of i'th token
pb = s.find_first_of(spaces, pa);
(i == 2 ? height : (i == 0 ? easting : northing)) =
Utility::val<real>(s.substr(pa, (pb == std::string::npos ?
pb : pb - pa)));
}
p.Reset(zonenum, northp, easting, northing);
if (heightmult) {
suff = pb == std::string::npos ? "" : s.substr(pb);
s = s.substr(0, pa);
}
} else {
if (heightmult) {
// Treat last token as height
// pb = last char of last token
// pa = last char preceding white space
// px = last char of 2nd last token
std::string::size_type pb = s.find_last_not_of(spaces);
std::string::size_type pa = s.find_last_of(spaces, pb);
if (pa == std::string::npos || pb == std::string::npos)
throw GeographicErr("Incomplete input: " + s);
height = Utility::val<real>(s.substr(pa + 1, pb - pa));
s = s.substr(0, pa + 1);
}
p.Reset(s, true, longfirst);
}
if (heightmult) {
real h = g(p.Latitude(), p.Longitude());
*output << s
<< Utility::str(height + real(heightmult) * h, 4)
<< suff << eol;
} else {
real h = g(p.Latitude(), p.Longitude());
*output << Utility::str(h, 4) << eol;
}
}
catch (const std::exception& e) {
*output << "ERROR: " << e.what() << "\n";
retval = 1;
}
}
}
catch (const std::exception& e) {
std::cerr << "Error reading " << geoid << ": " << e.what() << "\n";
retval = 1;
}
return retval;
}
catch (const std::exception& e) {
std::cerr << "Caught exception: " << e.what() << "\n";
return 1;
}
catch (...) {
std::cerr << "Caught unknown exception\n";
return 1;
}
}
DMS.hpp
Header for GeographicLib::DMS class.
GeoCoords.hpp
Header for GeographicLib::GeoCoords class.
real
GeographicLib::Math::real real
Definition: GeodSolve.cpp:29
main
int main(int argc, const char *const argv[])
Definition: GeoidEval.cpp:29
Geoid.hpp
Header for GeographicLib::Geoid class.
Utility.hpp
Header for GeographicLib::Utility class.
GeographicLib::GeoCoords
Conversion between geographic coordinates.
Definition: GeoCoords.hpp:49
GeographicLib::GeoCoords::Reset
void Reset(const std::string &s, bool centerp=true, bool longfirst=false)
Definition: GeoCoords.cpp:19
GeographicLib::GeoCoords::Latitude
Math::real Latitude() const
Definition: GeoCoords.hpp:276
GeographicLib::GeoCoords::Longitude
Math::real Longitude() const
Definition: GeoCoords.hpp:281
GeographicLib::GeographicErr
Exception handling for GeographicLib.
Definition: Constants.hpp:316
GeographicLib::Geoid
Looking up the height of the geoid above the ellipsoid.
Definition: Geoid.hpp:82
GeographicLib::Geoid::Scale
Math::real Scale() const
Definition: Geoid.hpp:379
GeographicLib::Geoid::MaxError
Math::real MaxError() const
Definition: Geoid.hpp:354
GeographicLib::Geoid::Description
const std::string & Description() const
Definition: Geoid.hpp:318
GeographicLib::Geoid::CacheEast
Math::real CacheEast() const
Definition: Geoid.hpp:403
GeographicLib::Geoid::Cache
bool Cache() const
Definition: Geoid.hpp:389
GeographicLib::Geoid::RMSError
Math::real RMSError() const
Definition: Geoid.hpp:363
GeographicLib::Geoid::GeoidFile
const std::string & GeoidFile() const
Definition: Geoid.hpp:328
GeographicLib::Geoid::convertflag
convertflag
Definition: Geoid.hpp:178
GeographicLib::Geoid::CacheSouth
Math::real CacheSouth() const
Definition: Geoid.hpp:421
GeographicLib::Geoid::CacheAll
void CacheAll() const
Definition: Geoid.hpp:258
GeographicLib::Geoid::Interpolation
const std::string Interpolation() const
Definition: Geoid.hpp:344
GeographicLib::Geoid::CacheNorth
Math::real CacheNorth() const
Definition: Geoid.hpp:413
GeographicLib::Geoid::Offset
Math::real Offset() const
Definition: Geoid.hpp:371
GeographicLib::Geoid::CacheArea
void CacheArea(real south, real west, real north, real east) const
Definition: Geoid.cpp:408
GeographicLib::Geoid::DateTime
const std::string & DateTime() const
Definition: Geoid.hpp:323
GeographicLib::Geoid::CacheWest
Math::real CacheWest() const
Definition: Geoid.hpp:394
GeographicLib::Math::real
double real
Definition: Math.hpp:100
GeographicLib
Namespace for GeographicLib.
Definition: Accumulator.cpp:12