ENH: Initial commit of new runTimePostProcessing function object

- Allows generation of images (currently PNG files) during the run
- ... or afterwards by invoking the execFlowFunctionObjects utility
- Wrapper around VTK functionality
- Support for objects:
  - text
  - points (glyphs: sphere, arrow)
  - lines (tubes)
  - surfaces (wireframe, shaded, combination)
- Colour using:
  - user-defined
  - field values (several colour maps availale)
- For image sequences:
  - dynamic views (camera movement)
  - objects can appear/disappear using opacity
- Building
  - VTK dependency v6+
  - satisfied using ParaView from ThirdParty directory
  - or separate VTK installation

src/postProcessing/functionObjects/graphics/runTimePostProcessing/functionObjectSurface.H

@@ -0,0 +1,115 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2015 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::functionObjectSurface
+
+Description
+
+SourceFiles
+    functionObjectSurface.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef functionObjectSurface_H
+#define functionObjectSurface_H
+
+#include "geometrySurface.H"
+#include "fieldVisualisationBase.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                    Class functionObjectSurface Declaration
+\*---------------------------------------------------------------------------*/
+
+class functionObjectSurface
+:
+    public geometrySurface,
+    public fieldVisualisationBase
+{
+
+
+private:
+
+    // Private Member Functions
+
+        //- Disallow default bitwise copy construct
+        functionObjectSurface(const functionObjectSurface&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const functionObjectSurface&);
+
+
+protected:
+
+    // Protected data
+
+        //- Name of function object result to render
+        word functionObject_;
+
+
+public:
+
+    //- Run-time type information
+    TypeName("functionObject");
+
+
+    // Constructors
+
+        //- Construct from dictionary
+        functionObjectSurface
+        (
+            const runTimePostProcessing& parent,
+            const dictionary& dict,
+            const HashPtrTable<DataEntry<vector>, word>& colours
+        );
+
+
+    //- Destructor
+    virtual ~functionObjectSurface();
+
+
+    // Member Functions
+
+        //- Add surface(s) to scene
+        virtual void addGeometryToScene
+        (
+            const scalar position,
+            vtkRenderer* renderer
+        );
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //