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Fix Pure Pursuit bug

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This commit is contained in:
Prateek Machiraju 2019-06-27 09:45:23 -04:00
parent bd58f94e9a
commit f2c45f5cd5
2 changed files with 7 additions and 2 deletions
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2
src/include/fl/mathematics/control/PurePursuitTracker.h
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@ -60,7 +60,7 @@ class PurePursuitTracker : public TrajectoryTracker {
// Run the loop until a distance that is greater than the minimum lookahead distance is found or until
// we run out of "trajectory" to search. If this happens, we will simply extend the end of the trajectory.
while (iterator.Progress() > previewed_time) {
while (iterator.RemainingProgress() > previewed_time) {
previewed_time += 0.02;
lookahead_pose_by_distance = iterator.Preview(previewed_time).state.State().Pose();

7
src/include/fl/mathematics/trajectory/TrajectoryIterator.h
View File

@ -3,6 +3,8 @@
#include "Trajectory.h"
#include "fl/Utilities.h"
#include <algorithm>
namespace fl {
template <typename U, typename S>
class TrajectoryIterator {
@ -32,7 +34,10 @@ class TrajectoryIterator {
bool IsDone() const { return progress_ >= trajectory_->LastInterpolant(); }
TrajectorySamplePoint<S> CurrentState() const { return sample_; }
U Progress() const { return progress_; }
U Progress() const { return progress_; }
U RemainingProgress() const {
return std::max(trajectory_->FirstInterpolant(), trajectory_->LastInterpolant() - progress_);
}
bool Reversed() const { return trajectory_->Reversed(); }
protected: