mirror of
https://github.com/azaion/autopilot.git
synced 2026-04-22 22:56:33 +00:00
Tuomas Järvinen
45c19baa45
- autopilot -> drone_controller - rtsp_ai_player -> ai_controller - added top level qmake project file - updated documentation - moved small demo applications from tmp/ to misc/
22 lines
625 B
C++
22 lines
625 B
C++
#include "az_utils.h"
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#include <math.h>
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AzUtils::AzUtils() {}
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#define EARTH_RADIUS 6371.0 // Earth radius in kilometers
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double degrees_to_radians(double degrees)
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{
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return degrees * M_PI / 180.0;
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}
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double AzUtils::distance(double lat1, double lon1, double lat2, double lon2)
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{
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double dlat = degrees_to_radians(lat2 - lat1);
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double dlon = degrees_to_radians(lon2 - lon1);
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double a = sin(dlat / 2) * sin(dlat / 2)
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+ cos(degrees_to_radians(lat1)) * cos(degrees_to_radians(lat2)) * sin(dlon / 2) * sin(dlon / 2);
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double c = 2 * atan2(sqrt(a), sqrt(1 - a));
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return EARTH_RADIUS * c;
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}
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