void writeCSVCamera(shared_ptr<ofstream> file, ros::Time stamp)
{
std::stringstream ss;
ss << stamp.toNSec() << "," << stamp.toNSec() << ".png";
*file << ss.str() << endl;
}
/**
* Send transform to FCU position controller
*
* Note: send only XYZ, Yaw
*/
void send_setpoint_transform(const tf::Transform &transform, const ros::Time &stamp) {
// ENU frame
tf::Vector3 origin = transform.getOrigin();
tf::Quaternion q = transform.getRotation();
/* Documentation start from bit 1 instead 0,
* Ignore velocity and accel vectors, yaw rate
*/
uint16_t ignore_all_except_xyz_y = (1 << 11) | (7 << 6) | (7 << 3);
if (uas->is_px4()) {
/**
* Current PX4 has bug: it cuts throttle if there no velocity sp
* Issue #273.
*
* @todo Revesit this quirk later. Should be fixed in firmware.
*/
ignore_all_except_xyz_y = (1 << 11) | (7 << 6);
}
// ENU->NED. Issue #49.
set_position_target_local_ned(stamp.toNSec() / 1000000,
MAV_FRAME_LOCAL_NED,
ignore_all_except_xyz_y,
origin.y(), origin.x(), -origin.z(),
0.0, 0.0, 0.0,
0.0, 0.0, 0.0,
tf::getYaw(q), 0.0);
}
int main(int argc, char **argv){
ros::init(argc, argv, "remaining_memory");
ros::NodeHandle n;
//Publisher part
ros::Publisher remaining_memory_pub = n.advertise<mavros_msgs::Mavlink>("mavlink/to", 2000);
ros::Rate loop_rate(10);
FILE *in;
char buff[512];
float remaining_memory = 0.0;
int count = 0;
while (ros::ok()) {
// get the remaining memory thanks to a shell script
if(!(in = popen("df -h /home/ | xargs | cut -d ' ' -f 14 | sed 's/%//g'", "r"))){
exit(1);
}
while(fgets(buff, sizeof(buff), in)!=NULL){
remaining_memory = (float) atoll(buff);
}
pclose(in);
//message generation
//1. make named value float with type mavlink_message_t
mavlink::mavlink_message_t msg;
mavlink::MsgMap map(msg);
mavlink::common::msg::NAMED_VALUE_FLOAT mem_msg;
std::array<char, 10> name = {"rem_mem"};
mem_msg.time_boot_ms = stamp.toNSec()/1000;
mem_msg.name = name;
mem_msg.value = remaining_memory;
mem_msg.serialize(map);
auto rmsg = boost::make_shared<mavros_msgs::Mavlink>();
rmsg->header.stamp = ros::Time::now();
mavros_msgs::mavlink::convert(msg, *rmsg);
remaining_memory_pub.publish(rmsg);
ros::spinOnce();
loop_rate.sleep();
++count;
}
return 0;
}
bool ElevationMap::update(const grid_map::Matrix& varianceUpdate, const grid_map::Matrix& horizontalVarianceUpdateX,
const grid_map::Matrix& horizontalVarianceUpdateY,
const grid_map::Matrix& horizontalVarianceUpdateXY, const ros::Time& time)
{
boost::recursive_mutex::scoped_lock scopedLock(rawMapMutex_);
const auto& size = rawMap_.getSize();
if (!((Index(varianceUpdate.rows(), varianceUpdate.cols()) == size).all()
&& (Index(horizontalVarianceUpdateX.rows(), horizontalVarianceUpdateX.cols()) == size).all()
&& (Index(horizontalVarianceUpdateY.rows(), horizontalVarianceUpdateY.cols()) == size).all()
&& (Index(horizontalVarianceUpdateXY.rows(), horizontalVarianceUpdateXY.cols()) == size).all())) {
ROS_ERROR("The size of the update matrices does not match.");
return false;
}
rawMap_.get("variance") += varianceUpdate;
rawMap_.get("horizontal_variance_x") += horizontalVarianceUpdateX;
rawMap_.get("horizontal_variance_y") += horizontalVarianceUpdateY;
rawMap_.get("horizontal_variance_xy") += horizontalVarianceUpdateXY;
clean();
rawMap_.setTimestamp(time.toNSec());
return true;
}
void revert_applied_readings_since(const ros::Time& time)
{
int msec = (int)(time.toNSec()/1000l);
int k = 0;
for(std::vector<ras_arduino_msgs::Encoders>::reverse_iterator it = _ringbuffer.rbegin(); it != _ringbuffer.rend(); ++it)
{
ras_arduino_msgs::Encoders& enc = *it;
if (enc.timestamp >= msec)
{
++k;
double dist_l = (2.0*M_PI*robot::dim::wheel_radius) * (enc.delta_encoder1 / robot::prop::ticks_per_rev);
double dist_r = (2.0*M_PI*robot::dim::wheel_radius) * (enc.delta_encoder2 / robot::prop::ticks_per_rev);
_theta += (dist_r - dist_l) / robot::dim::wheel_distance;
double dist = (dist_r + dist_l) / 2.0;
_x += dist * cos(_theta);
_y += dist * sin(_theta);
//remove reading
_ringbuffer.erase(--it.base());
}
}
ROS_ERROR("[PoseGenerator::revertReadingsSince] Reverted %d readings.",k);
}
/**
* @brief Send velocity to FCU velocity controller
*
* @warning Send only VX VY VZ. ENU frame.
*/
void send_setpoint_velocity(const ros::Time &stamp, Eigen::Vector3d &vel_enu, double yaw_rate)
{
/**
* Documentation start from bit 1 instead 0;
* Ignore position and accel vectors, yaw.
*/
uint16_t ignore_all_except_v_xyz_yr = (1 << 10) | (7 << 6) | (7 << 0);
auto vel = [&] () {
if (mav_frame == MAV_FRAME::BODY_NED || mav_frame == MAV_FRAME::BODY_OFFSET_NED) {
return ftf::transform_frame_baselink_aircraft(vel_enu);
} else {
return ftf::transform_frame_enu_ned(vel_enu);
}
} ();
auto yr = ftf::transform_frame_baselink_aircraft(Eigen::Vector3d(0.0, 0.0, yaw_rate));
set_position_target_local_ned(stamp.toNSec() / 1000000,
utils::enum_value(mav_frame),
ignore_all_except_v_xyz_yr,
Eigen::Vector3d::Zero(),
vel,
Eigen::Vector3d::Zero(),
0.0, yr.z());
}
/**
* @brief Send vision speed estimate to FCU velocity controller
*/
void send_vision_speed(const geometry_msgs::Vector3 &vel_enu, const ros::Time &stamp) {
Eigen::Vector3d vel_;
tf::vectorMsgToEigen(vel_enu, vel_);
auto vel = UAS::transform_frame_enu_ned(vel_);
vision_speed_estimate(stamp.toNSec() / 1000,
vel.x(), vel.y(), vel.z());
}
void profilingLoggerCurrentTimeDuration(ros::Time currentTime,
ros::Time startTime,
LogThis &logger,
std::string durationName)
{
logger.log(currentTime.toNSec(), "currentTime");
logger.log((currentTime-startTime).toSec(), durationName);
}
/**
* @brief Send vision speed estimate to FCU velocity controller
*/
void send_vision_speed(const geometry_msgs::Vector3 &vel_enu, const ros::Time &stamp)
{
Eigen::Vector3d vel_;
tf::vectorMsgToEigen(vel_enu, vel_);
//Transform from ENU to NED frame
auto vel = ftf::transform_frame_enu_ned(vel_);
vision_speed_estimate(stamp.toNSec() / 1000, vel);
}
/**
* Send angular velocity setpoint to FCU attitude controller
*
* ENU frame.
*/
void send_attitude_ang_velocity(const ros::Time &stamp, const float vx, const float vy, const float vz) {
// Q + Thrust, also bits noumbering started from 1 in docs
const uint8_t ignore_all_except_rpy = (1<<7)|(1<<6);
float q[4] = { 1.0, 0.0, 0.0, 0.0 };
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_rpy,
q,
vy, vx, -vz,
0.0);
}
/**
* @brief Send angular velocity setpoint to FCU attitude controller
*
* @note ENU frame.
*/
void send_attitude_ang_velocity(const ros::Time &stamp, const Eigen::Vector3d &ang_vel) {
/* Q + Thrust, also bits noumbering started from 1 in docs
*/
const uint8_t ignore_all_except_rpy = (1 << 7) | (1 << 6);
float q[4] = { 1.0, 0.0, 0.0, 0.0 };
auto av = UAS::transform_frame_enu_ned(ang_vel);
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_rpy,
q,
av.x(), av.y(), av.z(),
0.0);
}
void ValterJoyTeleop::joyCallback(const sensor_msgs::Joy::ConstPtr& joy)
{
float linVel = joy->axes[1];
float angVel = joy->axes[2];
linVel = linVel * 0.12;
angVel = angVel * 0.587;
if (fabs(prevLin - linVel) > 0.005 || fabs(prevAng - angVel) > 0.005 || (joy->axes[0] == 0 && joy->axes[1] == 0 && joy->axes[2] == 0 && joy->axes[3] == 0 && joy->axes[4] == 0 && joy->axes[5] == 0))
{
//ROS_INFO("TIME: %f", (ros::Time::now().toNSec() * 1e-6) - (prevSentTime.toNSec() * 1e-6));
//ROS_INFO("linVel = %f, angVel = %f", linVel, angVel);
if ((ros::Time::now().toNSec() * 1e-6 - prevSentTime.toNSec() * 1e-6) > 50 || (joy->axes[0] == 0 && joy->axes[1] == 0 && joy->axes[2] == 0 && joy->axes[3] == 0 && joy->axes[4] == 0 && joy->axes[5] == 0))
{
std::string cmdVelTaskScriptLine = format("T_PCP1_CmdVelTask_%.2f_%.2f", linVel, angVel);
ROS_INFO("%s", cmdVelTaskScriptLine.c_str());
int sock = socket(AF_INET , SOCK_STREAM , 0);
struct sockaddr_in server;
server.sin_addr.s_addr = inet_addr("192.168.0.248");
server.sin_family = AF_INET;
server.sin_port = htons(55555);
//Connect to remote server
if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0)
{
perror("connect failed. Error");
}
else
{
//Send some data
if( send(sock , cmdVelTaskScriptLine.c_str() , strlen( cmdVelTaskScriptLine.c_str() ) , 0) < 0)
{
perror("Send failed : ");
}
close(sock);
}
prevSentTime = ros::Time::now();
prevLin = linVel;
prevAng = angVel;
}
}
}
/**
* Send velocity to FCU velocity controller
*
* Note: send only VX VY VZ. ENU frame.
*/
void send_setpoint_velocity(const ros::Time &stamp, float vx, float vy, float vz, float yaw_rate) {
/* Documentation start from bit 1 instead 0,
* Ignore position and accel vectors, yaw
*/
uint16_t ignore_all_except_v_xyz_yr = (1 << 10) | (7 << 6) | (7 << 0);
// ENU->NED. Issue #49.
set_position_target_local_ned(stamp.toNSec() / 1000000,
MAV_FRAME_LOCAL_NED,
ignore_all_except_v_xyz_yr,
0.0, 0.0, 0.0,
vy, vx, -vz,
0.0, 0.0, 0.0,
0.0, yaw_rate);
}
/**
* @brief Send angular velocity setpoint and thrust to FCU attitude controller
*/
void send_attitude_ang_velocity(const ros::Time &stamp, const Eigen::Vector3d &ang_vel, const float thrust)
{
/**
* @note Q, also bits noumbering started from 1 in docs
*/
const uint8_t ignore_all_except_rpy = (1 << 7);
auto av = ftf::transform_frame_baselink_aircraft(ang_vel);
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_rpy,
Eigen::Quaterniond::Identity(),
av,
thrust);
}
/**
* @brief Send attitude setpoint to FCU attitude controller
*
* @note ENU frame.
*/
void send_attitude_target(const ros::Time &stamp, const Eigen::Affine3d &tr) {
/* Thrust + RPY, also bits numbering started from 1 in docs
*/
const uint8_t ignore_all_except_q = (1 << 6) | (7 << 0);
float q[4];
UAS::quaternion_to_mavlink(
UAS::transform_orientation_enu_ned(
UAS::transform_orientation_baselink_aircraft(Eigen::Quaterniond(tr.rotation()))),q);
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_q,
q,
0.0, 0.0, 0.0,
0.0);
}
/**
* @brief Send attitude setpoint to FCU attitude controller
*
* @note ENU frame.
*/
void send_attitude_target(const ros::Time &stamp, const Eigen::Affine3d &tr) {
/* Thrust + RPY, also bits numbering started from 1 in docs
*/
const uint8_t ignore_all_except_q = (1 << 6) | (7 << 0);
float q[4];
// Eigen use same convention as mavlink: w x y z
Eigen::Map<Eigen::Quaternionf> q_out(q);
q_out = UAS::transform_frame_enu_ned(Eigen::Quaterniond(tr.rotation())).cast<float>();
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_q,
q,
0.0, 0.0, 0.0,
0.0);
}
/**
* @brief Send attitude setpoint and thrust to FCU attitude controller
*/
void send_attitude_quaternion(const ros::Time &stamp, const Eigen::Affine3d &tr, const float thrust)
{
/**
* @note RPY, also bits numbering started from 1 in docs
*/
const uint8_t ignore_all_except_q_and_thrust = (7 << 0);
auto q = ftf::transform_orientation_enu_ned(
ftf::transform_orientation_baselink_aircraft(Eigen::Quaterniond(tr.rotation()))
);
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_q_and_thrust,
q,
Eigen::Vector3d::Zero(),
thrust);
}
/**
* @brief Send vision estimate transform to FCU position controller
*/
void send_vision_estimate(const ros::Time &stamp, const Eigen::Affine3d &tr)
{
/**
* @warning Issue #60.
* This now affects pose callbacks too.
*/
if (last_transform_stamp == stamp) {
ROS_DEBUG_THROTTLE_NAMED(10, "vision_pose", "Vision: Same transform as last one, dropped.");
return;
}
last_transform_stamp = stamp;
auto position = ftf::transform_frame_enu_ned(Eigen::Vector3d(tr.translation()));
auto rpy = ftf::quaternion_to_rpy(
ftf::transform_orientation_enu_ned(Eigen::Quaterniond(tr.rotation())));
vision_position_estimate(stamp.toNSec() / 1000, position, rpy);
}
/**
* Send attitude setpoint to FCU attitude controller
*
* ENU frame.
*/
void send_attitude_transform(const tf::Transform &transform, const ros::Time &stamp) {
// Thrust + RPY, also bits noumbering started from 1 in docs
const uint8_t ignore_all_except_q = (1<<6)|(7<<0);
float q[4];
// ENU->NED, description in #49.
tf::Quaternion tf_q = transform.getRotation();
q[0] = tf_q.w();
q[1] = tf_q.y();
q[2] = tf_q.x();
q[3] = -tf_q.z();
set_attitude_target(stamp.toNSec() / 1000000,
ignore_all_except_q,
q,
0.0, 0.0, 0.0,
0.0);
}
/**
* Send transform to FCU position controller
*
* Note: send only XYZ, Yaw
*/
void send_setpoint_transform(const tf::Transform &transform, const ros::Time &stamp) {
// ENU frame
tf::Vector3 origin = transform.getOrigin();
tf::Quaternion q = transform.getRotation();
/* Documentation start from bit 1 instead 0,
* Ignore velocity and accel vectors, yaw rate
*/
uint16_t ignore_all_except_xyzy = (1<<11)|(7<<6)|(7<<3);
// ENU->NED. Issue #49.
set_position_target_local_ned(stamp.toNSec() / 1000000,
MAV_FRAME_LOCAL_NED,
ignore_all_except_xyzy,
origin.y(), origin.x(), -origin.z(),
0.0, 0.0, 0.0,
0.0, 0.0, 0.0,
tf::getYaw(q), 0.0);
}
/**
* @brief Send setpoint to FCU position controller.
*
* @warning Send only XYZ, Yaw. ENU frame.
*/
void send_position_target(const ros::Time &stamp, const Eigen::Affine3d &tr) {
/* Documentation start from bit 1 instead 0;
* Ignore velocity and accel vectors, yaw rate.
*
* In past versions on PX4 there been bug described in #273.
* If you got similar issue please try update firmware first.
*/
const uint16_t ignore_all_except_xyz_y = (1 << 11) | (7 << 6) | (7 << 3);
auto p = UAS::transform_frame_enu_ned(Eigen::Vector3d(tr.translation()));
auto q = UAS::transform_frame_enu_ned(Eigen::Quaterniond(tr.rotation()));
set_position_target_local_ned(stamp.toNSec() / 1000000,
MAV_FRAME_LOCAL_NED,
ignore_all_except_xyz_y,
p.x(), p.y(), p.z(),
0.0, 0.0, 0.0,
0.0, 0.0, 0.0,
UAS::quaternion_get_yaw(q), 0.0);
}
/**
* Send vision estimate transform to FCU position controller
*/
void send_vision_transform(const tf::Transform &transform, const ros::Time &stamp) {
// origin and RPY in ENU frame
tf::Vector3 position = transform.getOrigin();
double roll, pitch, yaw;
tf::Matrix3x3 orientation(transform.getBasis());
orientation.getRPY(roll, pitch, yaw);
/* Issue #60.
* Note: this now affects pose callbacks too, but i think its not big deal.
*/
if (last_transform_stamp == stamp) {
ROS_DEBUG_THROTTLE_NAMED(10, "position", "Vision: Same transform as last one, dropped.");
return;
}
last_transform_stamp = stamp;
// TODO: check conversion. Issue #49.
vision_position_estimate(stamp.toNSec() / 1000,
position.y(), position.x(), -position.z(),
roll, -pitch, -yaw); // ??? please check!
}
/**
* @brief Send fake GPS coordinates through HIL_GPS Mavlink msg
*/
void send_fake_gps(const ros::Time &stamp, const Eigen::Vector3d &ecef_offset) {
// Throttle incoming messages to 5hz
if ((ros::Time::now() - last_pos_time) < ros::Duration(gps_rate)) {
return;
}
last_pos_time = ros::Time::now();
/**
* @note: HIL_GPS messages are accepted on PX4 Firmware out of HIL mode,
* if use_hil_gps flag is set (param MAV_USEHILGPS = 1).
* @todo: add GPS_INPUT msg as an alternative, as Ardupilot already supports it
*/
mavlink::common::msg::HIL_GPS fix {};
Eigen::Vector3d geodetic;
Eigen::Vector3d current_ecef(ecef_origin.x() + ecef_offset.x(),
ecef_origin.y() + ecef_offset.y(),
ecef_origin.z() + ecef_offset.z());
try {
earth.Reverse(current_ecef.x(), current_ecef.y(), current_ecef.z(),
geodetic.x(), geodetic.y(), geodetic.z());
}
catch (const std::exception& e) {
ROS_INFO_STREAM("FGPS: Caught exception: " << e.what() << std::endl);
}
Eigen::Vector3d vel = ((old_ecef - current_ecef) / (stamp.toSec() - old_stamp)) * 1e2;// [cm/s]
// compute course over ground
double cog;
if (vel.x() == 0 && vel.y() == 0) {
cog = 0;
}
else if (vel.x() >= 0 && vel.y() < 0) {
cog = M_PI * 5 / 2 - atan2(vel.x(), vel.y());
}
else {
cog = M_PI / 2 - atan2(vel.x(), vel.y());
}
// Fill in and send message
fix.time_usec = stamp.toNSec() / 1000; // [useconds]
fix.lat = geodetic.x() * 1e7; // [degrees * 1e7]
fix.lon = geodetic.y() * 1e7; // [degrees * 1e7]
fix.alt = (geodetic.z() + GeographicLib::Geoid::ELLIPSOIDTOGEOID *
(*m_uas->egm96_5)(geodetic.x(), geodetic.y())) * 1e3; // [meters * 1e3]
fix.vel = vel.block<2, 1>(0, 0).norm(); // [cm/s]
fix.vn = vel.x(); // [cm/s]
fix.ve = vel.y(); // [cm/s]
fix.vd = vel.z(); // [cm/s]
fix.cog = cog * 1e2; // [degrees * 1e2]
fix.eph = eph * 1e2; // [cm]
fix.epv = epv * 1e2; // [cm]
fix.fix_type = utils::enum_value(fix_type);;
fix.satellites_visible = satellites_visible;
// store old values
old_stamp = stamp.toSec();
old_ecef = current_ecef;
UAS_FCU(m_uas)->send_message_ignore_drop(fix);
}
/**
* @brief Send vision speed estimate to FCU velocity controller
*/
void send_vision_speed(float vx, float vy, float vz, const ros::Time &stamp) {
auto vel = UAS::transform_frame_enu_ned_xyz(vx, vy, vz);
vision_speed_estimate(stamp.toNSec() / 1000,
vel.x(), vel.y(), vel.z());
}
void ros_convertions::fromROS( ::ros_test::Time& value, ros::Time const& ros )
{
value.milliseconds = ros.toNSec() / 1000000;
}
int64_t PlaceDatabase::add(ros::Time stamp, const tf::Pose& pose_in_map, const tf::Transform& optical_transform,
const frame_common::Frame& frame, int64_t id)
{
assert((int)frame.kpts.size() == frame.dtors.rows);
// Add quantized image descriptor to document database
vt::Document words(frame.dtors.rows);
for (int i = 0; i < frame.dtors.rows; ++i)
words[i] = voctree_.quantize(frame.dtors.row(i));
vt::DocId doc_id = document_db_.insert(words);
// Record doc id -> place id mapping
if (id == AUTO_ID)
id = doc_id;
doc_to_place_id_[doc_id] = id;
/// @todo Move persistent db stuff to separate function
checkErr(sqlite3_bind_int64(insert_stmt_, 1, id), "Couldn't bind row id");
// Bind time stamp encoded as 64-bit integer
sqlite3_int64 time = stamp.toNSec();
checkErr(sqlite3_bind_int64(insert_stmt_, 2, time), "Couldn't bind stamp");
// Bind current map pose and camera transform
bindTransform(pose_in_map, map_pose_param_index_);
bindTransform(optical_transform, optical_transform_param_index_);
// Bind camera parameters
bindCameraParams(frame.cam);
// Bind disparities and "good points" list
int disp_index = disparities_param_index_;
bindVector(insert_stmt_, disp_index, frame.disps);
bindVector(insert_stmt_, disp_index + 1, frame.goodPts);
// Bind keypoint data
int keypt_index = keypoints_param_index_;
checkErr(sqlite3_bind_int(insert_stmt_, keypt_index, frame.kpts.size()), "Couldn't bind num_keypoints");
bindVector(insert_stmt_, keypt_index + 1, frame.kpts);
// Bind descriptor data. step of cv::Mat is implicit, blob length / num keypoints.
checkErr(sqlite3_bind_int(insert_stmt_, keypt_index + 2, frame.dtors.cols), "Couldn't bind descriptor_length");
checkErr(sqlite3_bind_blob(insert_stmt_, keypt_index + 3, frame.dtors.data,
frame.dtors.rows * frame.dtors.step, SQLITE_TRANSIENT),
"Couldn't bind descriptor data");
// Bind document vector data
bindVector(insert_stmt_, keypt_index + 4, words);
// Save images if present
bindImage(keypt_index + 5, frame.img);
bindImage(keypt_index + 6, frame.imgRight);
// Execute INSERT statement
checkErr(sqlite3_step(insert_stmt_), "INSERT statement not done", SQLITE_DONE);
// Reset prepared statement to reuse on next call
checkErr(sqlite3_reset(insert_stmt_), "Couldn't reset INSERT statement");
checkErr(sqlite3_clear_bindings(insert_stmt_), "Couldn't clear bindings on INSERT statement");
// Return row id of newly-added place
return id;
}
bool ElevationMap::add(const pcl::PointCloud<pcl::PointXYZRGB>::Ptr pointCloud, Eigen::VectorXf& pointCloudVariances, const ros::Time& timestamp, const Eigen::Affine3d& transformationSensorToMap)
{
if (pointCloud->size() != pointCloudVariances.size()) {
ROS_ERROR("ElevationMap::add: Size of point cloud (%i) and variances (%i) do not agree.",
(int) pointCloud->size(), (int) pointCloudVariances.size());
return false;
}
// Initialization for time calculation.
const ros::WallTime methodStartTime(ros::WallTime::now());
boost::recursive_mutex::scoped_lock scopedLockForRawData(rawMapMutex_);
// Update initial time if it is not initialized.
if (initialTime_.toSec() == 0) {
initialTime_ = timestamp;
}
const double scanTimeSinceInitialization = (timestamp - initialTime_).toSec();
for (unsigned int i = 0; i < pointCloud->size(); ++i) {
auto& point = pointCloud->points[i];
Index index;
Position position(point.x, point.y);
if (!rawMap_.getIndex(position, index)) continue; // Skip this point if it does not lie within the elevation map.
auto& elevation = rawMap_.at("elevation", index);
auto& variance = rawMap_.at("variance", index);
auto& horizontalVarianceX = rawMap_.at("horizontal_variance_x", index);
auto& horizontalVarianceY = rawMap_.at("horizontal_variance_y", index);
auto& horizontalVarianceXY = rawMap_.at("horizontal_variance_xy", index);
auto& color = rawMap_.at("color", index);
auto& time = rawMap_.at("time", index);
auto& lowestScanPoint = rawMap_.at("lowest_scan_point", index);
auto& sensorXatLowestScan = rawMap_.at("sensor_x_at_lowest_scan", index);
auto& sensorYatLowestScan = rawMap_.at("sensor_y_at_lowest_scan", index);
auto& sensorZatLowestScan = rawMap_.at("sensor_z_at_lowest_scan", index);
const float& pointVariance = pointCloudVariances(i);
const float scanTimeSinceInitialization = (timestamp - initialTime_).toSec();
if (!rawMap_.isValid(index)) {
// No prior information in elevation map, use measurement.
elevation = point.z;
variance = pointVariance;
horizontalVarianceX = minHorizontalVariance_;
horizontalVarianceY = minHorizontalVariance_;
horizontalVarianceXY = 0.0;
colorVectorToValue(point.getRGBVector3i(), color);
continue;
}
// Deal with multiple heights in one cell.
const double mahalanobisDistance = fabs(point.z - elevation) / sqrt(variance);
if (mahalanobisDistance > mahalanobisDistanceThreshold_) {
if (scanTimeSinceInitialization - time <= scanningDuration_ && elevation > point.z) {
// Ignore point if measurement is from the same point cloud (time comparison) and
// if measurement is lower then the elevation in the map.
} else if (scanTimeSinceInitialization - time <= scanningDuration_) {
// If point is higher.
elevation = point.z;
variance = pointVariance;
} else {
variance += multiHeightNoise_;
}
continue;
}
// Store lowest points from scan for visibility checking.
const float pointHeightPlusUncertainty = point.z + 3.0 * sqrt(pointVariance); // 3 sigma.
if (std::isnan(lowestScanPoint) || pointHeightPlusUncertainty < lowestScanPoint){
lowestScanPoint = pointHeightPlusUncertainty;
const Position3 sensorTranslation(transformationSensorToMap.translation());
sensorXatLowestScan = sensorTranslation.x();
sensorYatLowestScan = sensorTranslation.y();
sensorZatLowestScan = sensorTranslation.z();
}
// Fuse measurement with elevation map data.
elevation = (variance * point.z + pointVariance * elevation) / (variance + pointVariance);
variance = (pointVariance * variance) / (pointVariance + variance);
// TODO Add color fusion.
colorVectorToValue(point.getRGBVector3i(), color);
time = scanTimeSinceInitialization;
// Horizontal variances are reset.
horizontalVarianceX = minHorizontalVariance_;
horizontalVarianceY = minHorizontalVariance_;
horizontalVarianceXY = 0.0;
}
clean();
rawMap_.setTimestamp(timestamp.toNSec()); // Point cloud stores time in microseconds.
const ros::WallDuration duration = ros::WallTime::now() - methodStartTime;
ROS_INFO("Raw map has been updated with a new point cloud in %f s.", duration.toSec());
return true;
}
void ros_convertions::fromROS( ::base::Time& value, ros::Time const& ros )
{
value = base::Time::fromMicroseconds(ros.toNSec() / 1000);
}
/**
* Send vision speed estimate to FCU velocity controller
*/
void send_vision_speed(float vx, float vy, float vz, const ros::Time &stamp) {
// TODO: check conversion. Issue #49.
vision_speed_estimate(stamp.toNSec() / 1000,
vy, vx, -vz);
}
