WPILibC++ 2024.3.2
frc::CentripetalAccelerationConstraint Class Reference

A constraint on the maximum absolute centripetal acceleration allowed when traversing a trajectory. More...

#include <frc/trajectory/constraint/CentripetalAccelerationConstraint.h>

Inheritance diagram for frc::CentripetalAccelerationConstraint:
frc::TrajectoryConstraint

Public Member Functions

 CentripetalAccelerationConstraint (units::meters_per_second_squared_t maxCentripetalAcceleration)
 
units::meters_per_second_t MaxVelocity (const Pose2d &pose, units::curvature_t curvature, units::meters_per_second_t velocity) const override
 Returns the max velocity given the current pose and curvature. More...
 
MinMax MinMaxAcceleration (const Pose2d &pose, units::curvature_t curvature, units::meters_per_second_t speed) const override
 Returns the minimum and maximum allowable acceleration for the trajectory given pose, curvature, and speed. More...
 
- Public Member Functions inherited from frc::TrajectoryConstraint
 TrajectoryConstraint ()=default
 
 TrajectoryConstraint (const TrajectoryConstraint &)=default
 
TrajectoryConstraintoperator= (const TrajectoryConstraint &)=default
 
 TrajectoryConstraint (TrajectoryConstraint &&)=default
 
TrajectoryConstraintoperator= (TrajectoryConstraint &&)=default
 
virtual ~TrajectoryConstraint ()=default
 
virtual units::meters_per_second_t MaxVelocity (const Pose2d &pose, units::curvature_t curvature, units::meters_per_second_t velocity) const =0
 Returns the max velocity given the current pose and curvature. More...
 
virtual MinMax MinMaxAcceleration (const Pose2d &pose, units::curvature_t curvature, units::meters_per_second_t speed) const =0
 Returns the minimum and maximum allowable acceleration for the trajectory given pose, curvature, and speed. More...
 

Detailed Description

A constraint on the maximum absolute centripetal acceleration allowed when traversing a trajectory.

The centripetal acceleration of a robot is defined as the velocity squared divided by the radius of curvature.

Effectively, limiting the maximum centripetal acceleration will cause the robot to slow down around tight turns, making it easier to track trajectories with sharp turns.

Constructor & Destructor Documentation

◆ CentripetalAccelerationConstraint()

frc::CentripetalAccelerationConstraint::CentripetalAccelerationConstraint ( units::meters_per_second_squared_t  maxCentripetalAcceleration)
explicit

Member Function Documentation

◆ MaxVelocity()

units::meters_per_second_t frc::CentripetalAccelerationConstraint::MaxVelocity ( const Pose2d pose,
units::curvature_t  curvature,
units::meters_per_second_t  velocity 
) const
overridevirtual

Returns the max velocity given the current pose and curvature.

Parameters
poseThe pose at the current point in the trajectory.
curvatureThe curvature at the current point in the trajectory.
velocityThe velocity at the current point in the trajectory before constraints are applied.
Returns
The absolute maximum velocity.

Implements frc::TrajectoryConstraint.

◆ MinMaxAcceleration()

MinMax frc::CentripetalAccelerationConstraint::MinMaxAcceleration ( const Pose2d pose,
units::curvature_t  curvature,
units::meters_per_second_t  speed 
) const
overridevirtual

Returns the minimum and maximum allowable acceleration for the trajectory given pose, curvature, and speed.

Parameters
poseThe pose at the current point in the trajectory.
curvatureThe curvature at the current point in the trajectory.
speedThe speed at the current point in the trajectory.
Returns
The min and max acceleration bounds.

Implements frc::TrajectoryConstraint.


The documentation for this class was generated from the following file: