mirror of https://github.com/ArduPilot/ardupilot
99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
#include "Rover.h"
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// checks if we should update ahrs home position from the EKF's position
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void Rover::update_home_from_EKF()
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{
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// exit immediately if home already set
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if (ahrs.home_is_set()) {
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return;
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}
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// move home to current ekf location (this will set home_state to HOME_SET)
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set_home_to_current_location(false);
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}
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// set ahrs home to current location from EKF reported location or GPS
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bool Rover::set_home_to_current_location(bool lock)
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{
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// use position from EKF if available otherwise use GPS
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Location temp_loc;
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if (ahrs.have_inertial_nav() && ahrs.get_position(temp_loc)) {
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if (!set_home(temp_loc, lock)) {
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return false;
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}
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// we have successfully set AHRS home, set it for SmartRTL
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g2.smart_rtl.set_home(true);
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return true;
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}
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return false;
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}
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// sets ahrs home to specified location
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// returns true if home location set successfully
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bool Rover::set_home(const Location& loc, bool lock)
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{
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// check location is valid
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if (loc.lat == 0 && loc.lng == 0 && loc.alt == 0) {
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return false;
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}
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if (!check_latlng(loc)) {
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return false;
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}
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// check if EKF origin has been set
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Location ekf_origin;
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if (!ahrs.get_origin(ekf_origin)) {
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return false;
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}
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const bool home_was_set = ahrs.home_is_set();
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// set ahrs home
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ahrs.set_home(loc);
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if (!home_was_set) {
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// log new home position which mission library will pull from ahrs
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if (should_log(MASK_LOG_CMD)) {
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AP_Mission::Mission_Command temp_cmd;
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if (mission.read_cmd_from_storage(0, temp_cmd)) {
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DataFlash.Log_Write_Mission_Cmd(mission, temp_cmd);
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}
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}
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}
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// lock home position
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if (lock) {
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ahrs.lock_home();
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}
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// Save Home to EEPROM
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mission.write_home_to_storage();
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// send text of home position to ground stations
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gcs().send_text(MAV_SEVERITY_INFO, "Set HOME to %.6f %.6f at %.2fm",
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static_cast<double>(loc.lat * 1.0e-7f),
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static_cast<double>(loc.lng * 1.0e-7f),
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static_cast<double>(loc.alt * 0.01f));
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// return success
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return true;
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}
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/*
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update home location from GPS
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this is called as long as we have 3D lock and the arming switch is
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not pushed
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*/
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void Rover::update_home()
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{
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if (!ahrs.home_is_locked()) {
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Location loc;
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if (ahrs.get_position(loc)) {
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if (get_distance(loc, ahrs.get_home()) > DISTANCE_HOME_MAX) {
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ahrs.set_home(loc);
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}
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}
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}
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barometer.update_calibration();
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}
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