virtual void fillConvFuncBuffer(CFBuffer &cfb, CFBuffer &cfWtb, const casacore::Int &nx, const casacore::Int &ny, const casacore::Vector< casacore::Double > &freqValues, const casacore::Vector< casacore::Double > &wValues, const casacore::Double &wScale, const PolMapType &muellerElements, const PolMapType &muellerElementsIndex, const VisBuffer &vb, const casacore::Float &psScale, PSTerm &psTerm, WTerm &wTerm, ATerm &aTerm)