Defines a joint for fixing two bodies together or fixing one body to the ground. More...
#include <FixedJoint.h>
Inheritance diagram for FIXEDJOINT:
Public Member Functions | |
| FIXEDJOINT () | |
| Initializes the joint. More... | |
| virtual void | update_spatial_axes () |
| Sets spatial axes to zero. | |
| virtual void | determine_q (VECTORN &q) |
| Abstract method to determine the value of Q (joint position) from current transforms. | |
|
virtual boost::shared_ptr < const POSE3 > | get_induced_pose () |
| Gets the (local) transform for this joint (constant) | |
|
virtual const std::vector < SVELOCITY > & | get_spatial_axes_dot () |
| Gets the derivative for the spatial axes for this joint. | |
| virtual unsigned | num_dof () const |
| Gets the number of degrees-of-freedom for this joint. | |
| virtual void | evaluate_constraints (REAL C[]) |
| Evaluates the constraint equations. | |
| virtual void | set_inboard_pose (boost::shared_ptr< const POSE3 > inboard_pose, bool update_joint_pose) |
| virtual void | set_outboard_pose (boost::shared_ptr< POSE3 > outboard_pose, bool update_joint_pose) |
| virtual void | calc_constraint_jacobian (bool inboard, MATRIXN &Cq) |
| Computes the constraint Jacobian. | |
| virtual void | calc_constraint_jacobian_dot (bool inboard, MATRIXN &Cq) |
| Computes the constraint Jacobian. | |
| virtual bool | is_singular_config () const |
| Fixed joint can never be in a singular configuration. | |
 Public Member Functions inherited from JOINT | |
| JOINT () | |
| Initializes the joint. More... | |
| virtual const std::vector < SVELOCITY > & | get_spatial_axes () |
| Gets the spatial axes for this joint. More... | |
| void | add_force (const VECTORN &force) |
| Adds a force to the joint. | |
| void | reset_force () |
| Resets the force on the joint. | |
| ConstraintType | get_constraint_type () const |
| void | set_constraint_type (ConstraintType type) |
| Sets whether this constraint is implicit or explicit (or unknown) | |
| boost::shared_ptr < ARTICULATED_BODY > | get_articulated_body () |
| Gets the articulated body corresponding to this body. More... | |
| void | set_articulated_body (boost::shared_ptr< ARTICULATED_BODY > abody) |
| Sets the articulated body corresponding to this body. More... | |
| virtual void | set_inboard_link (boost::shared_ptr< RIGIDBODY > link, bool update_pose) |
| virtual void | set_outboard_link (boost::shared_ptr< RIGIDBODY > link, bool update_pose) |
| void | set_location (const VECTOR3 &p, boost::shared_ptr< RIGIDBODY > inboard, boost::shared_ptr< RIGIDBODY > outboard) |
| VECTOR3 | get_location (bool use_outboard=false) const |
| Gets the location of this joint. More... | |
| virtual void | evaluate_constraints_dot (REAL C[]) |
| Evaluates the time derivative of the constraint equations. | |
| virtual void | set_q_tare (const VECTORN &tare) |
| virtual const VECTORN & | get_q_tare () const |
| boost::shared_ptr< RIGIDBODY > | get_inboard_link () const |
| Gets the inboard link for this joint. | |
| boost::shared_ptr< RIGIDBODY > | get_outboard_link () const |
| Gets the outboard link for this joint. | |
| unsigned | get_index () const |
| Gets the joint index (returns UINT_MAX if not set) | |
| void | set_index (unsigned index) |
| Sets the joint index. More... | |
| unsigned | get_constraint_index () const |
| Gets the constraint index for this joint. | |
| void | set_constraint_index (unsigned idx) |
| Sets the constraint index for this joint. | |
| void | set_coord_index (unsigned index) |
| Sets the coordinate index for this joint. More... | |
| unsigned | get_coord_index () const |
| Gets the starting coordinate index for this joint. | |
| boost::shared_ptr< const POSE3 > | get_pose () const |
| Gets the pose of this joint (relative to the inboard pose instead of the outboard pose as returned by get_pose_from_outboard()) | |
| boost::shared_ptr< const POSE3 > | get_pose_from_outboard () const |
| Gets the pose of this joint relative to the outboard pose (rather than the inboard pose as returned by get_pose()) | |
| virtual unsigned | num_constraint_eqns () const |
| Gets the number of constraint equations for this joint. | |
| Public Member Functions inherited from Ravelin::virtual_enable_shared_from_this< JOINT > | |
| boost::shared_ptr< JOINT > | shared_from_this () |
| boost::shared_ptr< const JOINT > | shared_from_this () const |
Additional Inherited Members | |
| Public Types inherited from JOINT | |
| enum | ConstraintType { eUnknown, eExplicit, eImplicit } |
| enum | DOFs { DOF_1 =0, DOF_2 =1, DOF_3 =2, DOF_4 =3, DOF_5 =4, DOF_6 =5 } |
| Public Attributes inherited from JOINT | |
| std::string | joint_id |
| The ID of this joint. | |
| VECTORN | qdd |
| The acceleration of this joint. | |
| VECTORN | force |
| The actuator force (user/controller sets this) | |
| VECTORN | lambda |
| Constraint forces calculated by forward dynamics. | |
| VECTORN | q |
| The position of this joint. | |
| VECTORN | qd |
| The velocity of this joint. | |
| Protected Member Functions inherited from JOINT | |
| void | calc_constraint_jacobian_numeric (bool inboard, MATRIXN &Cq) |
| Computes the constraint jacobian with respect to a body numerically | |
| bool | transform_jacobian (MATRIXN &J, bool use_inboard, MATRIXN &output) |
| Transforms a Jacobian (if necessary) More... | |
| void | invalidate_pose_vectors () |
| boost::shared_ptr< const POSE3 > | get_inboard_pose () |
| boost::shared_ptr< const POSE3 > | get_outboard_pose () |
| virtual void | init_data () |
| Method for initializing all variables in the joint. More... | |
| Protected Attributes inherited from JOINT | |
| boost::shared_ptr< POSE3 > | _Fprime |
| The frame induced by the joint. | |
| boost::shared_ptr< POSE3 > | _F |
| The frame of this joint. | |
| boost::shared_ptr< POSE3 > | _Fb |
| The frame of this joint backward from the outboard link. | |
| std::vector< SVELOCITY > | _s |
| The spatial axes (in joint frame) for the joint. More... | |
| VECTORN | _q_tare |
| The stored "tare" value for the initial joint configuration. More... | |
| boost::weak_ptr< RIGIDBODY > | _inboard_link |
| boost::weak_ptr< RIGIDBODY > | _outboard_link |
| boost::weak_ptr< ARTICULATED_BODY > | _abody |
| ConstraintType | _constraint_type |
| unsigned | _joint_idx |
| unsigned | _coord_idx |
| unsigned | _constraint_idx |
Detailed Description
Defines a joint for fixing two bodies together or fixing one body to the ground.
Constructor & Destructor Documentation
| FIXEDJOINT::FIXEDJOINT | ( | ) |
Initializes the joint.
The inboard and outboard links are set to NULL.
References JOINT::init_data().
The documentation for this class was generated from the following files:
- /home/drum/Ravelin.new/include/Ravelin/FixedJoint.h
- /home/drum/Ravelin.new/src/FixedJoint.cpp
