## surfaces directory sources.
set(surfaces_sources
   MovingLeastSquaresModel.cpp
   MovingLeastSquaresModel.h
   LinearRegressionModel.cpp
   LinearRegressionModel.h
   RadialBasisFunctionModel.cpp
   RadialBasisFunctionModel.h
   DirectANNModel.cpp
   DirectANNModel.h
   KrigingModel.cpp
   KrigingModel.h
   MarsModel.cpp
   MarsModel.h
   SurfpackModel.cpp
   SurfpackModel.h
   ModelScaler.cpp
   ModelScaler.h
   least_squares_omp.cpp
   least_squares_omp.h
)

