Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
36 lines
1023 B
C++
36 lines
1023 B
C++
#pragma once
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#include <vanetza/geodesy/position.hpp>
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namespace vanetza
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{
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namespace geodesy
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{
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namespace haversine
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{
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/**
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* Get distance between two geodetic positions using the Haversine formula.
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* Uses a spherical Earth model (radius 6371 km).
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* \param a first position
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* \param b second position
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* \return distance in meters (always positive)
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*/
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units::Length distance(const GeodeticPosition& a, const GeodeticPosition& b);
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/**
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* Derive cartesian position ENU from geodetic coordinates using equirectangular projection.
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* Uses a spherical Earth model (radius 6371 km).
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* Suitable for short distances (< ~10 km) typical in GeoNetworking.
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* \param origin Reference point becoming origin
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* \param position Calculate cartesian coordinates for this point
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* \return Cartesian coordinates of position relative to origin
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*/
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CartesianPosition local_cartesian(
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const GeodeticPosition& origin,
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const GeodeticPosition& position);
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} // namespace haversine
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} // namespace geodesy
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} // namespace vanetza
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