void Function::addValueWithDerivatives() {
plumed_massert( getNumberOfArguments()!=0, "for functions you must requestArguments before adding values");
ActionWithValue::addValueWithDerivatives();
getPntrToValue()->resizeDerivatives(getNumberOfArguments());
if( keywords.exists("PERIODIC") ) {
std::vector<std::string> period;
parseVector("PERIODIC",period);
if(period.size()==1 && period[0]=="NO") {
setNotPeriodic();
} else if(period.size()==2) {
setPeriodic(period[0],period[1]);
} else error("missing PERIODIC keyword");
}
}
/*!
Sets whether it is possible to step the value from the highest value to
the lowest value and vice versa to on.
\param wrapping en/disables wrapping
\sa wrapping(), QwtDoubleRange::periodic()
\note The meaning of wrapping is like the wrapping property of QSpinBox,
but not like it is used in QDial.
*/
void QwtDial::setWrapping( bool wrapping )
{
setPeriodic( wrapping );
}