ENH: interpolationWeights: run-time selectable interpolation

src/OpenFOAM/primitives/functions/DataEntry/Table/TableBase.H

@@ -38,6 +38,7 @@ SourceFiles
 #include "DataEntry.H"
 #include "Tuple2.H"
 #include "dimensionSet.H"
+#include "interpolationWeights.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -80,10 +81,13 @@ protected:
     // Protected data
 
         //- Table name
-        word name_;
+        const word name_;
 
         //- Enumeration for handling out-of-bound values
-        boundsHandling boundsHandling_;
+        const boundsHandling boundsHandling_;
+
+        //- Interpolation type
+        const word interpolationScheme_;
 
         //- Table data
         List<Tuple2<scalar, Type> > table_;
@@ -91,9 +95,24 @@ protected:
         //- The dimension set
         dimensionSet dimensions_;
 
+        //- Extracted values
+        mutable scalarField tableSamples_;
+
+        //- Interpolator method
+        mutable autoPtr<interpolationWeights> interpolatorPtr_;
+
+        //- Cached indices and weights
+        mutable labelList currentIndices_;
+
+        mutable scalarField currentWeights_;
+
 
     // Protected Member Functions
 
+
+        //- Return (demand driven) interpolator
+        const interpolationWeights& interpolator() const;
+
         //- Disallow default bitwise assignment
         void operator=(const TableBase<Type>&);