public static void SmoothAndTrack(LinePath basePath, bool useTargetPath,
IList<LinePath> leftBounds, IList<LinePath> rightBounds,
double maxSpeed, double? endingHeading, bool endingOffsetBound,
CarTimestamp curTimestamp, bool doAvoidance,
SpeedCommand speedCommand, CarTimestamp behaviorTimestamp,
string commandLabel, ref bool cancelled,
ref LinePath previousSmoothedPath, ref CarTimestamp previousSmoothedPathTimestamp, ref double? approachSpeed)
{
// if we're in listen mode, just return for now
if (OperationalBuilder.BuildMode == BuildMode.Listen) {
return;
}
PathPlanner.PlanningResult result;
double curSpeed = Services.StateProvider.GetVehicleState().speed;
LinePath targetPath = new LinePath();
double initialHeading = 0;
// get the part we just used to make a prediction
if (useTargetPath && previousSmoothedPath != null) {
//targetPath = previousSmoothedPath.Transform(Services.RelativePose.GetTransform(previousSmoothedPathTimestamp, curTimestamp));
// interpolate the path with a smoothing spline
//targetPath = targetPath.SplineInterpolate(0.05);
//Services.UIService.PushRelativePath(targetPath, curTimestamp, "prediction path2");
// calculate the point speed*dt ahead
/*double lookaheadDist = curSpeed*0.20;
if (lookaheadDist > 0.1) {
LinePath.PointOnPath pt = targetPath.AdvancePoint(targetPath.ZeroPoint, lookaheadDist);
// get the heading
initialHeading = targetPath.GetSegment(pt.Index).UnitVector.ArcTan;
// adjust the base path start point to be the predicted location
basePath[0] = pt.Location;
// get the part we just used to make a prediction
predictionPath = targetPath.SubPath(targetPath.ZeroPoint, pt);
// push to the UI
Services.UIService.PushRelativePath(predictionPath, curTimestamp, "prediction path");
//basePath[0] = new Coordinates(lookaheadDist, 0);
Services.UIService.PushRelativePath(basePath, curTimestamp, "subpath2");
Services.Dataset.ItemAs<double>("initial heading").Add(initialHeading, curTimestamp);
// calculate a piece of the sub path
//targetPath = targetPath.SubPath(targetPath.ZeroPoint, 7);
}*/
// get the tracking manager to predict stuff like whoa
AbsolutePose absPose;
OperationalVehicleState vehicleState;
Services.TrackingManager.ForwardPredict(out absPose, out vehicleState);
// insert the stuff stuff
basePath[0] = absPose.xy;
initialHeading = absPose.heading;
// start walking down the path until the angle is cool
double angle_threshold = 30*Math.PI/180.0;
double dist;
LinePath.PointOnPath newPoint = new LinePath.PointOnPath();
for (dist = 0; dist < 10; dist += 1) {
// get the point advanced from the 2nd point on the base path by dist
double distTemp = dist;
newPoint = basePath.AdvancePoint(basePath.GetPointOnPath(1), ref distTemp);
// check if we're past the end
if (distTemp > 0) {
break;
}
// check if the angle is coolness or not
double angle = Math.Acos((newPoint.Location-basePath[0]).Normalize().Dot(basePath.GetSegment(newPoint.Index).UnitVector));
if (Math.Acos(angle) < angle_threshold) {
break;
}
}
// create a new version of the base path with the stuff section removed
basePath = basePath.RemoveBetween(basePath.StartPoint, newPoint);
Services.UIService.PushRelativePath(basePath, curTimestamp, "subpath2");
// zero that stuff out
targetPath = new LinePath();
}
StaticObstacles obstacles = null;
// only do the planning is we're in a lane scenario
// otherwise, the obstacle grid will be WAY too large
if (doAvoidance && leftBounds.Count == 1 && rightBounds.Count == 1) {
// get the obstacles predicted to the current timestamp
obstacles = Services.ObstaclePipeline.GetProcessedObstacles(curTimestamp);
}
// start the planning timer
Stopwatch planningTimer = Stopwatch.StartNew();
// check if there are any obstacles
if (obstacles != null && obstacles.polygons != null && obstacles.polygons.Count > 0) {
if (cancelled) return;
// we need to do the full obstacle avoidance
// execute the obstacle manager
LinePath avoidancePath;
List<ObstacleManager.ObstacleType> obstacleSideFlags;
bool success;
Services.ObstacleManager.ProcessObstacles(basePath, leftBounds, rightBounds, obstacles.polygons,
out avoidancePath, out obstacleSideFlags, out success);
// check if we have success
if (success) {
// build the boundary lists
// start with the lanes
List<Boundary> leftSmootherBounds = new List<Boundary>();
List<Boundary> rightSmootherBounds = new List<Boundary>();
double laneMinSpacing = 0.1;
double laneDesiredSpacing = 0.1;
double laneAlphaS = 0.1;
leftSmootherBounds.Add(new Boundary(leftBounds[0], laneMinSpacing, laneDesiredSpacing, laneAlphaS));
rightSmootherBounds.Add(new Boundary(rightBounds[0], laneMinSpacing, laneDesiredSpacing, laneAlphaS));
// sort out obstacles as left and right
double obstacleMinSpacing = 0.8;
double obstacleDesiredSpacing = 0.8;
double obstacleAlphaS = 100;
int totalObstacleClusters = obstacles.polygons.Count;
for (int i = 0; i < totalObstacleClusters; i++) {
if (obstacleSideFlags[i] == ObstacleManager.ObstacleType.Left) {
Boundary bound = new Boundary(obstacles.polygons[i], obstacleMinSpacing, obstacleDesiredSpacing, obstacleAlphaS);
bound.CheckFrontBumper = true;
leftSmootherBounds.Add(bound);
}
else if (obstacleSideFlags[i] == ObstacleManager.ObstacleType.Right) {
Boundary bound = new Boundary(obstacles.polygons[i], obstacleMinSpacing, obstacleDesiredSpacing, obstacleAlphaS);
bound.CheckFrontBumper = true;
rightSmootherBounds.Add(bound);
}
}
if (cancelled) return;
// execute the smoothing
PathPlanner planner = new PathPlanner();
planner.Options.alpha_w = 0;
planner.Options.alpha_d = 10;
planner.Options.alpha_c = 10;
result = planner.PlanPath(avoidancePath, targetPath, leftSmootherBounds, rightSmootherBounds, initialHeading, maxSpeed, Services.StateProvider.GetVehicleState().speed, endingHeading, curTimestamp, endingOffsetBound);
}
else {
// mark that we did not succeed
result = new PathPlanner.PlanningResult(SmoothResult.Infeasible, null);
}
}
else {
if (cancelled) return;
// do the path smoothing
PathPlanner planner = new PathPlanner();
List<LineList> leftList = new List<LineList>();
foreach (LinePath ll in leftBounds) leftList.Add(ll);
List<LineList> rightList = new List<LineList>();
foreach (LinePath rl in rightBounds) rightList.Add(rl);
planner.Options.alpha_w = 0;
planner.Options.alpha_s = 0.1;
planner.Options.alpha_d = 10;
planner.Options.alpha_c = 10;
result = planner.PlanPath(basePath, targetPath, leftList, rightList, initialHeading, maxSpeed, Services.StateProvider.GetVehicleState().speed, endingHeading, curTimestamp, endingOffsetBound);
}
planningTimer.Stop();
BehaviorManager.TraceSource.TraceEvent(TraceEventType.Verbose, 0, "planning took {0} ms", planningTimer.ElapsedMilliseconds);
Services.Dataset.ItemAs<bool>("route feasible").Add(result.result == SmoothResult.Sucess, LocalCarTimeProvider.LocalNow);
if (result.result == SmoothResult.Sucess) {
// insert the point (-1,0) so we make sure that the zero point during tracking is at the vehicle
//Coordinates startingVec = result.path[1].Point-result.path[0].Point;
//Coordinates insertPoint = result.path[0].Point-startingVec.Normalize();
//result.path.Insert(0, new OperationalLayer.PathPlanning.PathPoint(insertPoint, maxSpeed));
previousSmoothedPath = new LinePath(result.path);
previousSmoothedPathTimestamp = curTimestamp;
Services.UIService.PushLineList(previousSmoothedPath, curTimestamp, "smoothed path", true);
if (cancelled) return;
// we've planned out the path, now build up the command
ISpeedGenerator speedGenerator;
if (speedCommand is ScalarSpeedCommand) {
/*if (result.path.HasSpeeds) {
speedGenerator = result.path;
}
else {*/
speedGenerator = new ConstantSpeedGenerator(maxSpeed, null);
//}
}
else if (speedCommand is StopAtDistSpeedCommand) {
StopAtDistSpeedCommand stopCommand = (StopAtDistSpeedCommand)speedCommand;
IDistanceProvider distProvider = new TravelledDistanceProvider(behaviorTimestamp, stopCommand.Distance);
speedGenerator = new StopSpeedGenerator(distProvider, approachSpeed.Value);
BehaviorManager.TraceSource.TraceEvent(TraceEventType.Verbose, 0, "stay in lane - remaining stop stop dist {0}", distProvider.GetRemainingDistance());
}
else if (speedCommand is StopAtLineSpeedCommand) {
IDistanceProvider distProvider = new StoplineDistanceProvider();
speedGenerator = new StopSpeedGenerator(distProvider, approachSpeed.Value);
BehaviorManager.TraceSource.TraceEvent(TraceEventType.Verbose, 0, "stay in lane - remaining stop stop dist {0}", distProvider.GetRemainingDistance());
}
else if (speedCommand == null) {
throw new InvalidOperationException("Speed command is null");
}
else {
throw new InvalidOperationException("Speed command " + speedCommand.GetType().FullName + " is not supported");
}
if (cancelled) return;
// build up the command
TrackingCommand trackingCommand = new TrackingCommand(new FeedbackSpeedCommandGenerator(speedGenerator), new PathSteeringCommandGenerator(result.path), false);
trackingCommand.Label = commandLabel;
// queue it to execute
Services.TrackingManager.QueueCommand(trackingCommand);
}
}
protected void Track(PlanningResult planningResult, string commandLabel)
{
Services.Dataset.ItemAs<bool>("route feasible").Add(!planningResult.pathBlocked, LocalCarTimeProvider.LocalNow);
if (planningResult.smoothedPath != null && !planningResult.dynamicallyInfeasible) {
prevSmoothedPath = new LinePath(planningResult.smoothedPath);
prevSmoothedPathTimestamp = curTimestamp;
}
if (planningResult.smoothedPath != null) {
Services.UIService.PushLineList(prevSmoothedPath, curTimestamp, "smoothed path", true);
}
if (cancelled) return;
ISpeedCommandGenerator speedCommandGenerator = planningResult.speedCommandGenerator;
ISteeringCommandGenerator steeringCommandGenerator = planningResult.steeringCommandGenerator;
if (speedCommandGenerator == null) {
// we've planned out the path, now build up the command
ISpeedGenerator speedGenerator = null;
if (speedCommand is ScalarSpeedCommand) {
// extract the max speed from the planning settings
double maxSpeed = settings.maxSpeed;
if (planningResult.smoothedPath != null) {
SmoothedPath path = planningResult.smoothedPath;
maxSpeed = Math.Min(maxSpeed, PostProcessSpeed(path));
}
speedGenerator = new ConstantSpeedGenerator(maxSpeed, null);
}
else if (speedCommand is StopAtDistSpeedCommand) {
StopAtDistSpeedCommand stopCommand = (StopAtDistSpeedCommand)speedCommand;
IDistanceProvider distProvider = new TravelledDistanceProvider(behaviorTimestamp, stopCommand.Distance);
speedGenerator = new StopSpeedGenerator(distProvider, approachSpeed.Value);
BehaviorManager.TraceSource.TraceEvent(TraceEventType.Verbose, 0, "stay in lane - remaining stop stop dist {0}", distProvider.GetRemainingDistance());
}
else if (speedCommand is StopAtLineSpeedCommand) {
IDistanceProvider distProvider = new StoplineDistanceProvider();
speedGenerator = new StopSpeedGenerator(distProvider, approachSpeed.Value);
BehaviorManager.TraceSource.TraceEvent(TraceEventType.Verbose, 0, "stay in lane - remaining stop stop dist {0}", distProvider.GetRemainingDistance());
}
else if (speedCommand == null) {
throw new InvalidOperationException("Speed command is null");
}
else {
throw new InvalidOperationException("Speed command " + speedCommand.GetType().FullName + " is not supported");
}
speedCommandGenerator = new FeedbackSpeedCommandGenerator(speedGenerator);
}
if (cancelled) return;
// build up the command
TrackingCommand trackingCommand = new TrackingCommand(speedCommandGenerator, steeringCommandGenerator, false);
trackingCommand.Label = planningResult.commandLabel ?? commandLabel;
// queue it to execute
Services.TrackingManager.QueueCommand(trackingCommand);
}
