examples/example-TransverseMercatorExact.cpp
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1 // Example of using the GeographicLib::TransverseMercatorExact class
2 
3 #include <iostream>
4 #include <iomanip>
5 #include <exception>
7 
8 using namespace std;
9 using namespace GeographicLib;
10 
11 int main() {
12  try {
13  TransverseMercatorExact proj(Constants::WGS84_a(), Constants::WGS84_f(),
14  Constants::UTM_k0());
15  // Alternatively:
16  // const TransverseMercatorExact& proj = TransverseMercatorExact::UTM();
17  double lon0 = -75; // Central meridian for UTM zone 18
18  {
19  // Sample forward calculation
20  double lat = 40.3, lon = -74.7; // Princeton, NJ
21  double x, y;
22  proj.Forward(lon0, lat, lon, x, y);
23  cout << x << " " << y << "\n";
24  }
25  {
26  // Sample reverse calculation
27  double x = 25e3, y = 4461e3;
28  double lat, lon;
29  proj.Reverse(lon0, x, y, lat, lon);
30  cout << lat << " " << lon << "\n";
31  }
32  }
33  catch (const exception& e) {
34  cerr << "Caught exception: " << e.what() << "\n";
35  return 1;
36  }
37 }
e
Array< double, 1, 3 > e(1./3., 0.5, 2.)
GeographicLib::TransverseMercatorExact
An exact implementation of the transverse Mercator projection.
Definition: TransverseMercatorExact.hpp:83
GeographicLib
Namespace for GeographicLib.
Definition: JacobiConformal.hpp:15
x
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Definition: gnuplot_common_settings.hh:12
GeographicLib::TransverseMercatorExact::Reverse
void Reverse(real lon0, real x, real y, real &lat, real &lon, real &gamma, real &k) const
Definition: src/TransverseMercatorExact.cpp:408
example::lon0
const double lon0
Definition: testGPSFactor.cpp:41
y
Scalar * y
Definition: level1_cplx_impl.h:124
main
int main()
Definition: examples/example-TransverseMercatorExact.cpp:11
std
Definition: BFloat16.h:88
GeographicLib::TransverseMercatorExact::Forward
void Forward(real lon0, real lat, real lon, real &x, real &y, real &gamma, real &k) const
Definition: src/TransverseMercatorExact.cpp:348
lon
static const double lon
Definition: testGeographicLib.cpp:34
TransverseMercatorExact.hpp
Header for GeographicLib::TransverseMercatorExact class.
lat
static const double lat
Definition: testGeographicLib.cpp:34


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autogenerated on Sun Dec 22 2024 04:11:31