// do_circle - initiate moving in a circle
void Copter::do_circle(const AP_Mission::Mission_Command& cmd)
{
Location_Class circle_center(cmd.content.location);
// default lat/lon to current position if not provided
// To-Do: use stopping point or position_controller's target instead of current location to avoid jerk?
if (circle_center.lat == 0 && circle_center.lng == 0) {
circle_center.lat = current_loc.lat;
circle_center.lng = current_loc.lng;
}
// default target altitude to current altitude if not provided
if (circle_center.alt == 0) {
int32_t curr_alt;
if (current_loc.get_alt_cm(circle_center.get_alt_frame(),curr_alt)) {
// circle altitude uses frame from command
circle_center.set_alt_cm(curr_alt,circle_center.get_alt_frame());
} else {
// default to current altitude above origin
circle_center.set_alt_cm(current_loc.alt, current_loc.get_alt_frame());
Log_Write_Error(ERROR_SUBSYSTEM_TERRAIN, ERROR_CODE_MISSING_TERRAIN_DATA);
}
}
// calculate radius
uint8_t circle_radius_m = HIGHBYTE(cmd.p1); // circle radius held in high byte of p1
// move to edge of circle (verify_circle) will ensure we begin circling once we reach the edge
auto_circle_movetoedge_start(circle_center, circle_radius_m);
}
// do_circle - initiate moving in a circle
void Copter::do_circle(const AP_Mission::Mission_Command& cmd)
{
Vector3f curr_pos = inertial_nav.get_position();
Vector3f circle_center = pv_location_to_vector(cmd.content.location);
uint8_t circle_radius_m = HIGHBYTE(cmd.p1); // circle radius held in high byte of p1
bool move_to_edge_required = false;
// set target altitude if not provided
if (cmd.content.location.alt == 0) {
circle_center.z = curr_pos.z;
} else {
move_to_edge_required = true;
}
// set lat/lon position if not provided
// To-Do: use previous command's destination if it was a straight line or spline waypoint command
if (cmd.content.location.lat == 0 && cmd.content.location.lng == 0) {
circle_center.x = curr_pos.x;
circle_center.y = curr_pos.y;
} else {
move_to_edge_required = true;
}
// set circle controller's center
circle_nav.set_center(circle_center);
// set circle radius
if (circle_radius_m != 0) {
circle_nav.set_radius((float)circle_radius_m * 100.0f);
}
// check if we need to move to edge of circle
if (move_to_edge_required) {
// move to edge of circle (verify_circle) will ensure we begin circling once we reach the edge
auto_circle_movetoedge_start();
} else {
// start circling
auto_circle_start();
}
}