cartesian_interpolator.h

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/* Author: Ioan Sucan, Mike Lautman */
 
#pragma once
 
#include <moveit/robot_state/robot_state.h>
 
namespace moveit
{
namespace core
{
struct JumpThreshold
{
  double factor;
  double revolute;   // Radians
  double prismatic;  // Meters
 
  explicit JumpThreshold() : factor(0.0), revolute(0.0), prismatic(0.0)
  {
  }
 
  explicit JumpThreshold(double jt_factor) : JumpThreshold()
  {
    factor = jt_factor;
  }
 
  explicit JumpThreshold(double jt_revolute, double jt_prismatic) : JumpThreshold()
  {
    revolute = jt_revolute;    // Radians
    prismatic = jt_prismatic;  // Meters
  }
};
 
struct MaxEEFStep
{
  MaxEEFStep(double translation, double rotation) : translation(translation), rotation(rotation)
  {
  }
 
  MaxEEFStep(double step_size) : translation(step_size), rotation(3.5 * step_size)  // 0.035 rad = 2 deg
  {
  }
 
  double translation;  // Meters
  double rotation;     // Radians
};
 
class CartesianInterpolator
{
  // TODO(mlautman): Eventually, this planner should be moved out of robot_state
 
public:
  struct Percentage
  {
    // value must be in [0,1]
    Percentage(double value) : value(value)
    {
      if (value < 0.0 || value > 1.0)
        throw std::runtime_error("Percentage values must be between 0 and 1, inclusive");
    }
    operator double()
    {
      return value;
    }
    double operator*()
    {
      return value;
    }
    Percentage operator*(const Percentage& p)
    {
      Percentage res(value * p.value);
      return res;
    }
    double value;
  };
 
  struct Distance
  {
    Distance(double meters) : meters(meters)
    {
    }
    operator double()
    {
      return meters;
    }
    double operator*()
    {
      return meters;
    }
    Distance operator*(const Percentage& p)
    {
      Distance res(meters * p.value);
      return res;
    }
    double meters;
  };
 
  static Distance computeCartesianPath(
      RobotState* start_state, const JointModelGroup* group, std::vector<std::shared_ptr<RobotState>>& traj,
      const LinkModel* link, const Eigen::Vector3d& translation, bool global_reference_frame,
      const MaxEEFStep& max_step, const JumpThreshold& jump_threshold,
      const GroupStateValidityCallbackFn& validCallback = GroupStateValidityCallbackFn(),
      const kinematics::KinematicsQueryOptions& options = kinematics::KinematicsQueryOptions(),
      const kinematics::KinematicsBase::IKCostFn& cost_function = kinematics::KinematicsBase::IKCostFn());
 
  static Distance computeCartesianPath(
      RobotState* start_state, const JointModelGroup* group, std::vector<std::shared_ptr<RobotState>>& traj,
      const LinkModel* link, const Eigen::Vector3d& direction, bool global_reference_frame, double distance,
      const MaxEEFStep& max_step, const JumpThreshold& jump_threshold,
      const GroupStateValidityCallbackFn& validCallback = GroupStateValidityCallbackFn(),
      const kinematics::KinematicsQueryOptions& options = kinematics::KinematicsQueryOptions(),
      const kinematics::KinematicsBase::IKCostFn& cost_function = kinematics::KinematicsBase::IKCostFn())
  {
    return computeCartesianPath(start_state, group, traj, link, distance * direction, global_reference_frame, max_step,
                                jump_threshold, validCallback, options, cost_function);
  }
 
  static Percentage computeCartesianPath(
      RobotState* start_state, const JointModelGroup* group, std::vector<std::shared_ptr<RobotState>>& traj,
      const LinkModel* link, const Eigen::Isometry3d& target, bool global_reference_frame, const MaxEEFStep& max_step,
      const JumpThreshold& jump_threshold,
      const GroupStateValidityCallbackFn& validCallback = GroupStateValidityCallbackFn(),
      const kinematics::KinematicsQueryOptions& options = kinematics::KinematicsQueryOptions(),
      const kinematics::KinematicsBase::IKCostFn& cost_function = kinematics::KinematicsBase::IKCostFn(),
      const Eigen::Isometry3d& link_offset = Eigen::Isometry3d::Identity());
 
  static Percentage computeCartesianPath(
      RobotState* start_state, const JointModelGroup* group, std::vector<std::shared_ptr<RobotState>>& traj,
      const LinkModel* link, const EigenSTL::vector_Isometry3d& waypoints, bool global_reference_frame,
      const MaxEEFStep& max_step, const JumpThreshold& jump_threshold,
      const GroupStateValidityCallbackFn& validCallback = GroupStateValidityCallbackFn(),
      const kinematics::KinematicsQueryOptions& options = kinematics::KinematicsQueryOptions(),
      const kinematics::KinematicsBase::IKCostFn& cost_function = kinematics::KinematicsBase::IKCostFn(),
      const Eigen::Isometry3d& link_offset = Eigen::Isometry3d::Identity());
 
  static Percentage checkJointSpaceJump(const JointModelGroup* group, std::vector<std::shared_ptr<RobotState>>& traj,
                                        const JumpThreshold& jump_threshold);
 
  static Percentage checkRelativeJointSpaceJump(const JointModelGroup* group,
                                                std::vector<std::shared_ptr<RobotState>>& traj,
                                                double jump_threshold_factor);
 
  static Percentage checkAbsoluteJointSpaceJump(const JointModelGroup* group,
                                                std::vector<std::shared_ptr<RobotState>>& traj,
                                                double revolute_jump_threshold, double prismatic_jump_threshold);
};
 
}  // end of namespace core
}  // end of namespace moveit