Gremsy Lynx: Including relative altitude in image metadata

[TomasMerva]

Hi,

we would like to store the drone’s position in the metadata of captured images. We were able to store the global position, but the relative altitude is being ignored. Is there a way to include it, or could you please add this feature to the firmware?

void MavlinkDriver::set_payload_global_position(const double latitude, const double longitude, const double altitude,
                                                const double height_above_terrain)
{
  mavlink_global_position_int_t msg = {};
  msg.lat = latitude * 1E7;                       // convert to the format used in this mavlink msg
  msg.lon = longitude * 1E7;                      // convert to the format used in this mavlink msg
  msg.alt = altitude * 1E3;                       // convert to the format used in this mavlink msg
  msg.relative_alt = height_above_terrain * 1E3;  // TODO this is likely unused

  mavlink_message_t generic_msg;
  mavlink_msg_global_position_int_encode_chan(m_this_system_id, m_this_component_id, m_port->get_mav_channel(),
                                              &generic_msg, &msg);
  m_payload_interface->push_message_to_queue(generic_msg);
}

Thank you