ardupilot/libraries/AP_Limits/AP_Limit_Geofence.h

67 lines
2.0 KiB
C++

// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-
/// @file limits.h
/// @brief Imposes limits on location (geofence), altitude and other parameters.
/// Each limit breach will trigger an action or set of actions to recover. Adapted from geofence.
/// @author Andrew Tridgell
/// Andreas Antonopoulos
#ifndef __AP_LIMIT_GEOFENCE_H__
#define __AP_LIMIT_GEOFENCE_H__
#include "AP_Limits.h"
#include "AP_Limit_Module.h"
#include <AP_Math.h>
#include <AP_Param.h>
#include <GPS.h>
#define MAX_FENCEPOINTS 6
class AP_Limit_Geofence : public AP_Limit_Module {
public:
AP_Limit_Geofence(uint32_t _eeprom_fence_start, uint8_t fpsize, uint8_t max_fp, GPS *&gps, struct Location *home_loc, struct Location *current_loc);
bool init();
bool triggered();
AP_Int8 fence_total();
void set_fence_point_with_index(Vector2l &point, uint8_t i);
Vector2l get_fence_point_with_index(uint8_t i);
void update_boundary();
bool boundary_correct();
static const struct AP_Param::GroupInfo var_info[];
protected:
// pointers to gps, current location and home
GPS *& _gps;
struct Location * _current_loc;
struct Location * _home;
// Simple mode, just radius
AP_Int8 _simple; // 1 = simple, 0 = complex
AP_Int16 _radius; // in meters, for simple mode
// Complex mode, defined fence points
AP_Int8 _fence_total;
AP_Int8 _num_points;
private:
const uint32_t _eeprom_fence_start;
const unsigned _fence_wp_size;
const unsigned _max_fence_points;
bool _boundary_uptodate;
Vector2l _boundary[MAX_FENCEPOINTS]; // complex mode fence
};
// Helper functions
uint32_t get_distance_meters(struct Location *loc1, struct Location *loc2); // distance in meters between two locations
#endif // __AP_LIMIT_GEOFENCE_H__