Exotica
joint_acceleration_backward_difference.h
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29 
30 #ifndef EXOTICA_CORE_TASK_MAPS_JOINT_ACCELERATION_BACKWARD_DIFFERENCE_H_
31 #define EXOTICA_CORE_TASK_MAPS_JOINT_ACCELERATION_BACKWARD_DIFFERENCE_H_
32 
33 #include <exotica_core/task_map.h>
34 
35 #include <exotica_core_task_maps/joint_acceleration_backward_difference_initializer.h>
36 
37 namespace exotica
38 {
48 class JointAccelerationBackwardDifference : public TaskMap, public Instantiable<JointAccelerationBackwardDifferenceInitializer>
49 {
50 public:
51  void AssignScene(ScenePtr scene) override;
52 
61 
64  int TaskSpaceDim() override;
65 
66 private:
67  int N_;
68  Eigen::Vector2d backward_difference_params_;
69  Eigen::MatrixXd q_;
70  Eigen::VectorXd qbd_;
71  Eigen::MatrixXd I_;
72 };
73 } // namespace exotica
74 
75 #endif // EXOTICA_CORE_TASK_MAPS_JOINT_ACCELERATION_BACKWARD_DIFFERENCE_H_
exotica::JointAccelerationBackwardDifference::qbd_
Eigen::VectorXd qbd_
x+qbd_ is a simplifed estimate of the second time derivative.
Definition: joint_acceleration_backward_difference.h:70
exotica::JointAccelerationBackwardDifference::Update
void Update(Eigen::VectorXdRefConst x, Eigen::VectorXdRef phi) override
exotica::JointAccelerationBackwardDifference::SetPreviousJointState
void SetPreviousJointState(Eigen::VectorXdRefConst joint_state)
Logs previous joint state. SetPreviousJointState must be called after solve is called in a Python/C++...
exotica::JointAccelerationBackwardDifference::N_
int N_
Number of dofs for robot.
Definition: joint_acceleration_backward_difference.h:67
exotica::TaskMap
Definition: task_map.h:52
exotica::JointAccelerationBackwardDifference::AssignScene
void AssignScene(ScenePtr scene) override
exotica::Instantiable
Definition: property.h:110
exotica
Definition: cartpole_dynamics_solver.h:38
exotica::JointAccelerationBackwardDifference::I_
Eigen::MatrixXd I_
Identity matrix.
Definition: joint_acceleration_backward_difference.h:71
exotica::JointAccelerationBackwardDifference::q_
Eigen::MatrixXd q_
Log of previous two joint states.
Definition: joint_acceleration_backward_difference.h:69
exotica::ScenePtr
std::shared_ptr< Scene > ScenePtr
Definition: scene.h:246
Eigen::VectorXdRef
Eigen::Ref< Eigen::VectorXd > VectorXdRef
Definition: conversions.h:54
Eigen::VectorXdRefConst
const typedef Eigen::Ref< const Eigen::VectorXd > & VectorXdRefConst
Convenience wrapper for storing references to sub-matrices/vectors.
Definition: conversions.h:52
exotica::JointAccelerationBackwardDifference
Time-derivative estimation by backward differencing. JointAccelerationBackwardDifference uses backwar...
Definition: joint_acceleration_backward_difference.h:48
Eigen::MatrixXdRef
Eigen::Ref< Eigen::MatrixXd > MatrixXdRef
Definition: conversions.h:55
exotica::JointAccelerationBackwardDifference::backward_difference_params_
Eigen::Vector2d backward_difference_params_
Binomial cooeficient parameters.
Definition: joint_acceleration_backward_difference.h:68
exotica::JointAccelerationBackwardDifference::TaskSpaceDim
int TaskSpaceDim() override
task_map.h