NAME

       sc::NonlinearTransform - The NonlinearTransform class transforms between two nonlinear
       coordinate systems.

SYNOPSIS

       #include <transform.h>

       Inherits sc::RefCount.

       Inherited by sc::IdentityTransform.

   Public Member Functions
       virtual void transform_coordinates (const RefSCVector &x)=0
           Transform the coordinates.
       virtual void transform_gradient (const RefSCVector &g)
           Transform the gradient at a point in the new coordinate system.
       virtual void transform_hessian (const RefSymmSCMatrix &h)
           Transform the hessian to the new coordinate system.
       virtual void transform_ihessian (const RefSymmSCMatrix &ih)
           Transform the inverse of the hessian.

       Public Member Functions inherited from sc::RefCount
       int lock_ptr () const
           Lock this object.
       int unlock_ptr () const
           Unlock this object.
       void use_locks (bool inVal)
           start and stop using locks on this object
       refcount_t nreference () const
           Return the reference count.
       refcount_t reference ()
           Increment the reference count and return the new count.
       refcount_t dereference ()
           Decrement the reference count and return the new count.
       int managed () const
       void unmanage ()
           Turn off the reference counting mechanism for this object.
       int managed () const
           Return 1 if the object is managed. Otherwise return 0.

       Public Member Functions inherited from sc::Identity
       Identifier identifier ()
           Return the Identifier for this argument.

   Protected Attributes
       RefSCMatrix linear_transform_

   Additional Inherited Members
       Protected Member Functions inherited from sc::RefCount
       RefCount (const RefCount &)
       RefCount & operator= (const RefCount &)

Detailed Description

       The NonlinearTransform class transforms between two nonlinear coordinate systems.

       It is needed when a change of coordinates occurs in the middle of an optimization.

Member Function Documentation

   virtual void sc::NonlinearTransform::transform_coordinates (const RefSCVector & x) [pure
       virtual]
       Transform the coordinates.

       Implemented in sc::IdentityTransform.

   virtual void sc::NonlinearTransform::transform_gradient (const RefSCVector & g) [virtual]
       Transform the gradient at a point in the new coordinate system. transform_coordinates must
       be called first to give the point.

       Reimplemented in sc::IdentityTransform.

   virtual void sc::NonlinearTransform::transform_hessian (const RefSymmSCMatrix & h) [virtual]
       Transform the hessian to the new coordinate system. transform_gradient must be called
       first to initialize this routine.

       Reimplemented in sc::IdentityTransform.

   virtual void sc::NonlinearTransform::transform_ihessian (const RefSymmSCMatrix & ih) [virtual]
       Transform the inverse of the hessian. transform_gradient must be called first to
       initialize this routine.

       Reimplemented in sc::IdentityTransform.

Author

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