Constraint::CoordinateCoupler Class Reference

#include <Constraint.h>

Inheritance diagram for Constraint::CoordinateCoupler:

Constraint::Custom Constraint PIMPLHandle

List of all members.


Detailed Description

This is a subclass of Constraint::Custom which uses a Function object to define a holonomic (position) constraint.

You provide a Function which takes some subset of the system's generalized coordinates as arguments, and returns a single value. It also must support partial derivatives up to second order. The constraint enforces that the value of the function should equal 0 at all times.

Public Member Functions

 CoordinateCoupler (SimbodyMatterSubsystem &matter, const Function< 1 > *function, const std::vector< MobilizedBodyIndex > &coordBody, const std::vector< MobilizerQIndex > &coordIndex)
 Create a CoordinateCoupler.


Constructor & Destructor Documentation

CoordinateCoupler ( SimbodyMatterSubsystem matter,
const Function< 1 > *  function,
const std::vector< MobilizedBodyIndex > &  coordBody,
const std::vector< MobilizerQIndex > &  coordIndex 
)

Create a CoordinateCoupler.

You specify a Function and a list of generalized coordinates to pass to it as arguments. Each generalized coordinate is specified by a MobilizedBody and the index of the coordinate within that body. For example matter.getMobilizedBody(bodies[2]).getOneQ(state, coordinates[2]) will be passed to the function as the value of the second argument.

Parameters:
matter the matter subsystem this constraint will be added to
function the Function whose value should equal 0 at all times. The constraint takes over ownership of this object, and automatically deletes in when the constraint is deleted.
coordBody the MobilizedBody corresponding to each generalized coordinate that should be passed as a function argument
coordIndex the index corresponding to each generalized coordinate that should be passed as a function argument


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

Generated on Fri Sep 26 07:44:31 2008 for SimTKcore by  doxygen 1.5.6