ADD: new track message, Entity class and Position class
This commit is contained in:
Henry Winkel
335
libs/geographiclib/tools/Gravity.cpp
Normal file
335
libs/geographiclib/tools/Gravity.cpp
Normal file
@@ -0,0 +1,335 @@
|
||||
/**
|
||||
* \file Gravity.cpp
|
||||
* \brief Command line utility for evaluating gravity fields
|
||||
*
|
||||
* Copyright (c) Charles Karney (2011-2022) <charles@karney.com> and licensed
|
||||
* under the MIT/X11 License. For more information, see
|
||||
* https://geographiclib.sourceforge.io/
|
||||
*
|
||||
* See the <a href="Gravity.1.html">man page</a> for usage information.
|
||||
**********************************************************************/
|
||||
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
#include <sstream>
|
||||
#include <fstream>
|
||||
#include <GeographicLib/GravityModel.hpp>
|
||||
#include <GeographicLib/GravityCircle.hpp>
|
||||
#include <GeographicLib/DMS.hpp>
|
||||
#include <GeographicLib/Utility.hpp>
|
||||
|
||||
#if defined(_MSC_VER)
|
||||
// Squelch warnings about constant conditional and enum-float expressions
|
||||
// and potentially uninitialized local variables
|
||||
# pragma warning (disable: 4127 5055 4701)
|
||||
#endif
|
||||
|
||||
#include "Gravity.usage"
|
||||
|
||||
int main(int argc, const char* const argv[]) {
|
||||
try {
|
||||
using namespace GeographicLib;
|
||||
typedef Math::real real;
|
||||
Utility::set_digits();
|
||||
bool verbose = false, longfirst = false;
|
||||
std::string dir;
|
||||
std::string model = GravityModel::DefaultGravityName();
|
||||
std::string istring, ifile, ofile, cdelim;
|
||||
char lsep = ';';
|
||||
real lat = 0, h = 0;
|
||||
bool circle = false;
|
||||
int prec = -1, Nmax = -1, Mmax = -1;
|
||||
enum {
|
||||
GRAVITY = 0,
|
||||
DISTURBANCE = 1,
|
||||
ANOMALY = 2,
|
||||
UNDULATION = 3,
|
||||
};
|
||||
unsigned mode = GRAVITY;
|
||||
for (int m = 1; m < argc; ++m) {
|
||||
std::string arg(argv[m]);
|
||||
if (arg == "-n") {
|
||||
if (++m == argc) return usage(1, true);
|
||||
model = argv[m];
|
||||
} else if (arg == "-d") {
|
||||
if (++m == argc) return usage(1, true);
|
||||
dir = argv[m];
|
||||
} else if (arg == "-N") {
|
||||
if (++m == argc) return usage(1, true);
|
||||
try {
|
||||
Nmax = Utility::val<int>(std::string(argv[m]));
|
||||
if (Nmax < 0) {
|
||||
std::cerr << "Maximum degree " << argv[m] << " is negative\n";
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
catch (const std::exception&) {
|
||||
std::cerr << "Precision " << argv[m] << " is not a number\n";
|
||||
return 1;
|
||||
}
|
||||
} else if (arg == "-M") {
|
||||
if (++m == argc) return usage(1, true);
|
||||
try {
|
||||
Mmax = Utility::val<int>(std::string(argv[m]));
|
||||
if (Mmax < 0) {
|
||||
std::cerr << "Maximum order " << argv[m] << " is negative\n";
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
catch (const std::exception&) {
|
||||
std::cerr << "Precision " << argv[m] << " is not a number\n";
|
||||
return 1;
|
||||
}
|
||||
} else if (arg == "-G")
|
||||
mode = GRAVITY;
|
||||
else if (arg == "-D")
|
||||
mode = DISTURBANCE;
|
||||
else if (arg == "-A")
|
||||
mode = ANOMALY;
|
||||
else if (arg == "-H")
|
||||
mode = UNDULATION;
|
||||
else if (arg == "-c") {
|
||||
if (m + 2 >= argc) return usage(1, true);
|
||||
try {
|
||||
using std::fabs;
|
||||
DMS::flag ind;
|
||||
lat = DMS::Decode(std::string(argv[++m]), ind);
|
||||
if (ind == DMS::LONGITUDE)
|
||||
throw GeographicErr("Bad hemisphere letter on latitude");
|
||||
if (!(fabs(lat) <= Math::qd))
|
||||
throw GeographicErr("Latitude not in [-" + std::to_string(Math::qd)
|
||||
+ "d, " + std::to_string(Math::qd) + "d]");
|
||||
h = Utility::val<real>(std::string(argv[++m]));
|
||||
circle = true;
|
||||
}
|
||||
catch (const std::exception& e) {
|
||||
std::cerr << "Error decoding argument of " << arg << ": "
|
||||
<< e.what() << "\n";
|
||||
return 1;
|
||||
}
|
||||
} else if (arg == "-w")
|
||||
longfirst = !longfirst;
|
||||
else if (arg == "-p") {
|
||||
if (++m == argc) return usage(1, true);
|
||||
try {
|
||||
prec = Utility::val<int>(std::string(argv[m]));
|
||||
}
|
||||
catch (const std::exception&) {
|
||||
std::cerr << "Precision " << argv[m] << " is not a number\n";
|
||||
return 1;
|
||||
}
|
||||
} 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 gravity path = \""
|
||||
<< GravityModel::DefaultGravityPath()
|
||||
<< "\"\nDefault gravity name = \""
|
||||
<< GravityModel::DefaultGravityName()
|
||||
<< "\"\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;
|
||||
|
||||
switch (mode) {
|
||||
case GRAVITY:
|
||||
prec = std::min(16 + Math::extra_digits(), prec < 0 ? 5 : prec);
|
||||
break;
|
||||
case DISTURBANCE:
|
||||
case ANOMALY:
|
||||
prec = std::min(14 + Math::extra_digits(), prec < 0 ? 3 : prec);
|
||||
break;
|
||||
case UNDULATION:
|
||||
default:
|
||||
prec = std::min(12 + Math::extra_digits(), prec < 0 ? 4 : prec);
|
||||
break;
|
||||
}
|
||||
int retval = 0;
|
||||
try {
|
||||
using std::isfinite;
|
||||
const GravityModel g(model, dir, Nmax, Mmax);
|
||||
if (circle) {
|
||||
if (!isfinite(h))
|
||||
throw GeographicErr("Bad height");
|
||||
else if (mode == UNDULATION && h != 0)
|
||||
throw GeographicErr("Height should be zero for geoid undulations");
|
||||
}
|
||||
if (verbose) {
|
||||
std::cerr << "Gravity file: " << g.GravityFile() << "\n"
|
||||
<< "Name: " << g.GravityModelName() << "\n"
|
||||
<< "Description: " << g.Description() << "\n"
|
||||
<< "Date & Time: " << g.DateTime() << "\n";
|
||||
}
|
||||
unsigned mask = (mode == GRAVITY ? GravityModel::GRAVITY :
|
||||
(mode == DISTURBANCE ? GravityModel::DISTURBANCE :
|
||||
(mode == ANOMALY ? GravityModel::SPHERICAL_ANOMALY :
|
||||
GravityModel::GEOID_HEIGHT))); // mode == UNDULATION
|
||||
const GravityCircle c(circle ? g.Circle(lat, h, mask) : GravityCircle());
|
||||
std::string s, eol, stra, strb;
|
||||
std::istringstream str;
|
||||
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";
|
||||
s = s.substr(0, m);
|
||||
}
|
||||
}
|
||||
str.clear(); str.str(s);
|
||||
real lon;
|
||||
if (circle) {
|
||||
if (!(str >> strb))
|
||||
throw GeographicErr("Incomplete input: " + s);
|
||||
DMS::flag ind;
|
||||
lon = DMS::Decode(strb, ind);
|
||||
if (ind == DMS::LATITUDE)
|
||||
throw GeographicErr("Bad hemisphere letter on " + strb);
|
||||
} else {
|
||||
if (!(str >> stra >> strb))
|
||||
throw GeographicErr("Incomplete input: " + s);
|
||||
DMS::DecodeLatLon(stra, strb, lat, lon, longfirst);
|
||||
h = 0;
|
||||
if (!(str >> h)) // h is optional
|
||||
str.clear();
|
||||
if (mode == UNDULATION && h != 0)
|
||||
throw GeographicErr("Height must be zero for geoid heights");
|
||||
}
|
||||
if (str >> stra)
|
||||
throw GeographicErr("Extra junk in input: " + s);
|
||||
switch (mode) {
|
||||
case GRAVITY:
|
||||
{
|
||||
real gx, gy, gz;
|
||||
if (circle) {
|
||||
c.Gravity(lon, gx, gy, gz);
|
||||
} else {
|
||||
g.Gravity(lat, lon, h, gx, gy, gz);
|
||||
}
|
||||
*output << Utility::str(gx, prec) << " "
|
||||
<< Utility::str(gy, prec) << " "
|
||||
<< Utility::str(gz, prec) << eol;
|
||||
}
|
||||
break;
|
||||
case DISTURBANCE:
|
||||
{
|
||||
real deltax, deltay, deltaz;
|
||||
if (circle) {
|
||||
c.Disturbance(lon, deltax, deltay, deltaz);
|
||||
} else {
|
||||
g.Disturbance(lat, lon, h, deltax, deltay, deltaz);
|
||||
}
|
||||
// Convert to mGals
|
||||
*output << Utility::str(deltax * 100000, prec) << " "
|
||||
<< Utility::str(deltay * 100000, prec) << " "
|
||||
<< Utility::str(deltaz * 100000, prec)
|
||||
<< eol;
|
||||
}
|
||||
break;
|
||||
case ANOMALY:
|
||||
{
|
||||
real Dg01, xi, eta;
|
||||
if (circle)
|
||||
c.SphericalAnomaly(lon, Dg01, xi, eta);
|
||||
else
|
||||
g.SphericalAnomaly(lat, lon, h, Dg01, xi, eta);
|
||||
Dg01 *= 100000; // Convert to mGals
|
||||
xi *= Math::ds; // Convert to arcsecs
|
||||
eta *= Math::ds;
|
||||
*output << Utility::str(Dg01, prec) << " "
|
||||
<< Utility::str(xi, prec) << " "
|
||||
<< Utility::str(eta, prec) << eol;
|
||||
}
|
||||
break;
|
||||
case UNDULATION:
|
||||
default:
|
||||
{
|
||||
real N = circle ? c.GeoidHeight(lon) : g.GeoidHeight(lat, lon);
|
||||
*output << Utility::str(N, prec) << eol;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
catch (const std::exception& e) {
|
||||
*output << "ERROR: " << e.what() << "\n";
|
||||
retval = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (const std::exception& e) {
|
||||
std::cerr << "Error reading " << model << ": " << 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;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user