Class for handling single DOF joint constraints. More...
#include <kinematic_constraint.h>
Public Member Functions  
virtual void  clear () 
Clear the stored constraint. More...  
bool  configure (const moveit_msgs::JointConstraint &jc) 
Configure the constraint based on a moveit_msgs::JointConstraint. More...  
virtual ConstraintEvaluationResult  decide (const robot_state::RobotState &state, bool verbose=false) const 
Decide whether the constraint is satisfied in the indicated state. More...  
virtual bool  enabled () const 
This function returns true if this constraint is configured and able to decide whether states do meet the constraint or not. If this function returns false it means that decide() will always return true – there is no constraint to be checked. More...  
virtual bool  equal (const KinematicConstraint &other, double margin) const 
Check if two joint constraints are the same. More...  
double  getDesiredJointPosition () const 
Gets the desired position component of the constraint. More...  
const robot_model::JointModel *  getJointModel () const 
Get the joint model for which this constraint operates. More...  
double  getJointToleranceAbove () const 
Gets the upper tolerance component of the joint constraint. More...  
double  getJointToleranceBelow () const 
Gets the lower tolerance component of the joint constraint. More...  
int  getJointVariableIndex () const 
const std::string &  getJointVariableName () const 
Gets the joint variable name, as known to the robot_model::RobotModel. More...  
const std::string &  getLocalVariableName () const 
Gets the local variable name if this constraint was configured for a part of a multiDOF joint. More...  
JointConstraint (const robot_model::RobotModelConstPtr &model)  
Constructor. More...  
virtual void  print (std::ostream &out=std::cout) const 
Print the constraint data. More...  
Public Member Functions inherited from kinematic_constraints::KinematicConstraint  
double  getConstraintWeight () const 
The weight of a constraint is a multiplicative factor associated to the distance computed by the decide() function. More...  
const robot_model::RobotModelConstPtr &  getRobotModel () const 
ConstraintType  getType () const 
Get the type of constraint. More...  
KinematicConstraint (const robot_model::RobotModelConstPtr &model)  
Constructor. More...  
virtual  ~KinematicConstraint () 
Protected Attributes  
bool  joint_is_continuous_ 
Whether or not the joint is continuous. More...  
const robot_model::JointModel *  joint_model_ 
The joint from the kinematic model for this constraint. More...  
double  joint_position_ 
double  joint_tolerance_above_ 
double  joint_tolerance_below_ 
Position and tolerance values. More...  
int  joint_variable_index_ 
The index of the joint variable name in the full robot state. More...  
std::string  joint_variable_name_ 
The joint variable name. More...  
std::string  local_variable_name_ 
The local variable name for a multi DOF joint, if any. More...  
Protected Attributes inherited from kinematic_constraints::KinematicConstraint  
double  constraint_weight_ 
The weight of a constraint is a multiplicative factor associated to the distance computed by the decide() function. More...  
robot_model::RobotModelConstPtr  robot_model_ 
The kinematic model associated with this constraint. More...  
ConstraintType  type_ 
The type of the constraint. More...  
Additional Inherited Members  
Public Types inherited from kinematic_constraints::KinematicConstraint  
enum  ConstraintType { UNKNOWN_CONSTRAINT, JOINT_CONSTRAINT, POSITION_CONSTRAINT, ORIENTATION_CONSTRAINT, VISIBILITY_CONSTRAINT } 
Enum for representing a constraint. More...  
Class for handling single DOF joint constraints.
This class handles single DOF constraints expressed as a tolerance above and below a target position. MultiDOF joints can be accomodated by using local name formulations  i.e. for a planar joint specifying a constraint in terms of "planar_joint_name"/x.
Continuous revolute single DOF joints will be evaluated based on wrapping around 3.14 and 3.14. Tolerances above and below will be evaluating over the wrap. For instance, if the constraint value is 3.14 and the tolerance above is .04, a value of 3.14 is in bounds, as is a value of 3.12. 3.1 is out of bounds. Similarly, if the value of the constraint is 3.14, the tolerance above is .04, and the tolerance below is .02 then 3.1 is a valid value, as is 3.14; 3.1 is out of bounds.
Type will be JOINT_CONSTRAINT.
Definition at line 203 of file kinematic_constraint.h.

inline 
Constructor.
[in]  model  The kinematic model used for constraint evaluation 
Definition at line 211 of file kinematic_constraint.h.

virtual 
Clear the stored constraint.
Implements kinematic_constraints::KinematicConstraint.
Definition at line 245 of file kinematic_constraint.cpp.
bool kinematic_constraints::JointConstraint::configure  (  const moveit_msgs::JointConstraint &  jc  ) 
Configure the constraint based on a moveit_msgs::JointConstraint.
For the configure command to be successful, the joint must exist in the kinematic model, the joint must not be a multiDOF joint (for these joints, local variables should be used), and the tolerance values must be positive.
[in]  jc  JointConstraint for configuration 
Definition at line 68 of file kinematic_constraint.cpp.

virtual 
Decide whether the constraint is satisfied in the indicated state.
[in]  state  The kinematic state used for evaluation 
[in]  verbose  Whether or not to print output 
Implements kinematic_constraints::KinematicConstraint.
Definition at line 208 of file kinematic_constraint.cpp.

virtual 
This function returns true if this constraint is configured and able to decide whether states do meet the constraint or not. If this function returns false it means that decide() will always return true – there is no constraint to be checked.
Implements kinematic_constraints::KinematicConstraint.
Definition at line 240 of file kinematic_constraint.cpp.

virtual 
Check if two joint constraints are the same.
This means that the types are the same, the subject of the constraint is the same, and all values associated with the constraint are within a margin. The other constraint must also be enabled. For this to be true of joint constraints, they must act on the same joint, and the position and tolerance values must be within the margins.
[in]  other  The other constraint to test 
[in]  margin  The margin to apply to all values associated with constraint 
Implements kinematic_constraints::KinematicConstraint.
Definition at line 196 of file kinematic_constraint.cpp.

inline 
Gets the desired position component of the constraint.
Definition at line 299 of file kinematic_constraint.h.

inline 
Get the joint model for which this constraint operates.
Definition at line 259 of file kinematic_constraint.h.

inline 
Gets the upper tolerance component of the joint constraint.
Definition at line 310 of file kinematic_constraint.h.

inline 
Gets the lower tolerance component of the joint constraint.
Definition at line 321 of file kinematic_constraint.h.

inline 
Definition at line 288 of file kinematic_constraint.h.

inline 
Gets the joint variable name, as known to the robot_model::RobotModel.
This will include the local variable name if a variable of a multiDOF joint is constrained.
Definition at line 283 of file kinematic_constraint.h.

inline 
Gets the local variable name if this constraint was configured for a part of a multiDOF joint.
Definition at line 271 of file kinematic_constraint.h.

virtual 
Print the constraint data.
[in]  out  The file descriptor for printing 
Reimplemented from kinematic_constraints::KinematicConstraint.
Definition at line 255 of file kinematic_constraint.cpp.

protected 
Whether or not the joint is continuous.
Definition at line 328 of file kinematic_constraint.h.

protected 
The joint from the kinematic model for this constraint.
Definition at line 327 of file kinematic_constraint.h.

protected 
Definition at line 332 of file kinematic_constraint.h.

protected 
Definition at line 332 of file kinematic_constraint.h.

protected 
Position and tolerance values.
Definition at line 332 of file kinematic_constraint.h.

protected 
The index of the joint variable name in the full robot state.
Definition at line 331 of file kinematic_constraint.h.

protected 
The joint variable name.
Definition at line 330 of file kinematic_constraint.h.

protected 
The local variable name for a multi DOF joint, if any.
Definition at line 329 of file kinematic_constraint.h.