/*!
\brief create a new visual features in the task
(the desired feature is then null)
*/
void
vpServo::addFeature(vpBasicFeature& s, int select)
{
featureList += &s ;
// in fact we have a problem with s_star that is not defined
// by the end user.
// If the same user want to compute the interaction at the desired position
// this "virtual feature" must exist
// a solution is then to duplicate the current feature (s* = s)
// and reinitialized s* to 0
// it remains the deallocation issue therefore a flag that stipulates that
// the feature has been allocated in vpServo is set
// vpServo must deallocate the memory (see ~vpServo and kill() )
vpBasicFeature *s_star ;
s_star = s.duplicate() ;
s_star->init() ;
s_star->setDeallocate(vpBasicFeature::vpServo) ;
desiredFeatureList += s_star ;
featureSelectionList+= select ;
}
