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
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
// Example of using the GeographicLib::GeodesicLineExact class
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#include <iostream>
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#include <iomanip>
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#include <exception>
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#include <cmath>
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#include <GeographicLib/GeodesicExact.hpp>
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#include <GeographicLib/GeodesicLineExact.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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// Print waypoints between JFK and SIN
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GeodesicExact geod(Constants::WGS84_a(), Constants::WGS84_f());
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// Alternatively: const GeodesicExact& geod = GeodesicExact::WGS84();
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double
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lat1 = 40.640, lon1 = -73.779, // JFK
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lat2 = 1.359, lon2 = 103.989; // SIN
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GeodesicLineExact line = geod.InverseLine(lat1, lon1, lat2, lon2);
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double ds0 = 500e3; // Nominal distance between points = 500 km
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int num = int(ceil(line.Distance() / ds0)); // The number of intervals
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cout << fixed << setprecision(3);
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{
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// Use intervals of equal length
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double ds = line.Distance() / num;
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for (int i = 0; i <= num; ++i) {
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double lat, lon;
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line.Position(i * ds, lat, lon);
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cout << i << " " << lat << " " << lon << "\n";
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}
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}
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{
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// Slightly faster, use intervals of equal arc length
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double da = line.Arc() / num;
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for (int i = 0; i <= num; ++i) {
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double lat, lon;
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line.ArcPosition(i * da, lat, lon);
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cout << i << " " << lat << " " << lon << "\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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