ENH: Added access to interpolation scheme

src/finiteVolume/finiteVolume/convectionSchemes/gaussConvectionScheme/gaussConvectionScheme.C

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -39,6 +39,14 @@ namespace fv
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+template<class Type>
+const surfaceInterpolationScheme<Type>&
+gaussConvectionScheme<Type>::interpScheme() const
+{
+    return tinterpScheme_();
+}
+
+
 template<class Type>
 tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
 gaussConvectionScheme<Type>::interpolate

src/finiteVolume/finiteVolume/convectionSchemes/gaussConvectionScheme/gaussConvectionScheme.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -134,6 +134,8 @@ public:
 
     // Member Functions
 
+        const surfaceInterpolationScheme<Type>& interpScheme() const;
+
         tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > interpolate
         (
             const surfaceScalarField&,