gtsam
3rdparty
GeographicLib
examples
examples/example-PolygonArea.cpp
Go to the documentation of this file.
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// Example of using the GeographicLib::PolygonArea class
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#include <iostream>
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#include <exception>
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#include <
GeographicLib/PolygonArea.hpp
>
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#include <
GeographicLib/Geodesic.hpp
>
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#include <
GeographicLib/Constants.hpp
>
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using namespace
std
;
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using namespace
GeographicLib
;
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int
main
() {
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try
{
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Geodesic
geod(Constants::WGS84_a(), Constants::WGS84_f());
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// Alternatively: const Geodesic& geod = Geodesic::WGS84();
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PolygonArea poly(geod);
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poly.AddPoint( 52, 0);
// London
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poly.AddPoint( 41,-74);
// New York
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poly.AddPoint(-23,-43);
// Rio de Janeiro
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poly.AddPoint(-26, 28);
// Johannesburg
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double
perimeter, area;
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unsigned
n
= poly.Compute(
false
,
true
, perimeter, area);
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cout <<
n
<<
" "
<< perimeter <<
" "
<< area <<
"\n"
;
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}
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catch
(
const
exception&
e
) {
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cerr <<
"Caught exception: "
<<
e
.what() <<
"\n"
;
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return
1;
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}
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}
e
Array< double, 1, 3 > e(1./3., 0.5, 2.)
GeographicLib
Namespace for GeographicLib.
Definition:
JacobiConformal.hpp:15
n
int n
Definition:
BiCGSTAB_simple.cpp:1
PolygonArea.hpp
Header for GeographicLib::PolygonAreaT class.
Constants.hpp
Header for GeographicLib::Constants class.
std
Definition:
BFloat16.h:88
main
int main()
Definition:
examples/example-PolygonArea.cpp:12
GeographicLib::Geodesic
Geodesic calculations
Definition:
Geodesic.hpp:172
Geodesic.hpp
Header for GeographicLib::Geodesic class.
gtsam
Author(s):
autogenerated on Sun Dec 22 2024 04:11:31