mirror of https://github.com/ArduPilot/ardupilot
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#include "Copter.h"
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// run_nav_updates - top level call for the autopilot
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// ensures calculations such as "distance to waypoint" are calculated before autopilot makes decisions
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// To-Do - rename and move this function to make it's purpose more clear
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void Copter::run_nav_updates(void)
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{
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// fetch position from inertial navigation
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calc_position();
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// calculate distance and bearing for reporting and autopilot decisions
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calc_distance_and_bearing();
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// run autopilot to make high level decisions about control modes
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run_autopilot();
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}
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// calc_position - get lat and lon positions from inertial nav library
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void Copter::calc_position()
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{
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// pull position from interial nav library
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current_loc.lng = inertial_nav.get_longitude();
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current_loc.lat = inertial_nav.get_latitude();
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}
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// calc_distance_and_bearing - calculate distance and bearing to next waypoint and home
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void Copter::calc_distance_and_bearing()
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{
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calc_wp_distance();
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calc_wp_bearing();
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calc_home_distance_and_bearing();
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}
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// calc_wp_distance - calculate distance to next waypoint for reporting and autopilot decisions
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void Copter::calc_wp_distance()
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{
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// get target from loiter or wpinav controller
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if (control_mode == LOITER || control_mode == CIRCLE) {
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wp_distance = wp_nav.get_loiter_distance_to_target();
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}else if (control_mode == AUTO || control_mode == RTL || (control_mode == GUIDED && guided_mode == Guided_WP)) {
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wp_distance = wp_nav.get_wp_distance_to_destination();
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}else{
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wp_distance = 0;
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}
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}
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// calc_wp_bearing - calculate bearing to next waypoint for reporting and autopilot decisions
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void Copter::calc_wp_bearing()
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{
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// get target from loiter or wpinav controller
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if (control_mode == LOITER || control_mode == CIRCLE) {
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wp_bearing = wp_nav.get_loiter_bearing_to_target();
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} else if (control_mode == AUTO || control_mode == RTL || (control_mode == GUIDED && guided_mode == Guided_WP)) {
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wp_bearing = wp_nav.get_wp_bearing_to_destination();
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} else {
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wp_bearing = 0;
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}
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}
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// calc_home_distance_and_bearing - calculate distance and bearing to home for reporting and autopilot decisions
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void Copter::calc_home_distance_and_bearing()
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{
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// calculate home distance and bearing
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if (position_ok()) {
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Vector3f home = pv_location_to_vector(ahrs.get_home());
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Vector3f curr = inertial_nav.get_position();
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home_distance = pv_get_horizontal_distance_cm(curr, home);
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home_bearing = pv_get_bearing_cd(curr,home);
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// update super simple bearing (if required) because it relies on home_bearing
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update_super_simple_bearing(false);
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}
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}
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// run_autopilot - highest level call to process mission commands
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void Copter::run_autopilot()
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{
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if (control_mode == AUTO) {
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// update state of mission
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// may call commands_process.pde's start_command and verify_command functions
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mission.update();
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}
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}
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