torstenandCopilot
342ffd3e5c
- HandlerMinelayerData: BUILD_RTI Guards für RTI-Abhängigkeiten - svcTabCommon: Export-Header-Fix via Fallback-Target - TrainingAreaBase: Stub-Header für BUILD_RTI=OFF - ddsfts: Include-Pfad und Dependency-Fixes - BUILD_RTI=OFF Compilation vollständig unterstützt Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Entire-Checkpoint: 01M0JNZA586SACX1PRZ2DJAE5S
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
// Example of using the GeographicLib::MagneticCircle class
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// This requires that the wmm2010 magnetic model be installed; see
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// https://geographiclib.sourceforge.io/C++/doc/magnetic.html#magneticinst
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#include <iostream>
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#include <exception>
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#include <GeographicLib/MagneticModel.hpp>
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#include <GeographicLib/MagneticCircle.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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MagneticModel mag("wmm2010");
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double lat = 27.99, lon0 = 86.93, h = 8820, t = 2012; // Mt Everest
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{
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// Slow method of evaluating the values at several points on a circle of
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// latitude.
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for (int i = -5; i <= 5; ++i) {
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double lon = lon0 + i * 0.2;
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double Bx, By, Bz;
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mag(t, lat, lon, h, Bx, By, Bz);
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cout << lon << " " << Bx << " " << By << " " << Bz << "\n";
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}
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}
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{
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// Fast method of evaluating the values at several points on a circle of
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// latitude using MagneticCircle.
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MagneticCircle circ = mag.Circle(t, lat, h);
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for (int i = -5; i <= 5; ++i) {
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double lon = lon0 + i * 0.2;
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double Bx, By, Bz;
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circ(lon, Bx, By, Bz);
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cout << lon << " " << Bx << " " << By << " " << Bz << "\n";
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}
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}
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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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}
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