Creation of OpenFOAM-dev repository 15/04/2008

applications/utilities/postProcessing/dataConversion/foamToVTK/vtkMesh.H

@@ -0,0 +1,186 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2007 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::vtkMesh
+
+Description
+    Encapsulation of VTK mesh data. Holds mesh or meshsubset and
+    polyhedral-cell decomposition on it.
+
+SourceFiles
+    vtkMesh.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef vtkMesh_H
+#define vtkMesh_H
+
+#include "vtkTopo.H"
+#include "fvMeshSubset.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+class Time;
+
+/*---------------------------------------------------------------------------*\
+                           Class vtkMesh Declaration
+\*---------------------------------------------------------------------------*/
+
+class vtkMesh
+{
+    // Private data
+
+        //- Reference to mesh
+        fvMesh& baseMesh_;
+
+        //- Subsetting engine
+        fvMeshSubset subsetter_;
+
+        //- Current cellSet (or empty)
+        const word setName_;
+
+        //- Current decomposition of topology
+        mutable vtkTopo* topoPtr_;
+
+
+
+    // Private Member Functions
+
+        //- Disallow default bitwise copy construct
+        vtkMesh(const vtkMesh&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const vtkMesh&);
+
+
+public:
+
+    // Constructors
+
+        //- Construct from components
+        vtkMesh(fvMesh& baseMesh, const word& setName = "");
+
+
+    // Destructor
+
+        ~vtkMesh();
+
+
+    // Member Functions
+
+        // Access
+
+            //- whole mesh
+            const fvMesh& baseMesh() const
+            {
+                return baseMesh_;
+            }
+
+            const fvMeshSubset& subsetter() const
+            {
+                return subsetter_;
+            }
+
+            //- Check if running subMesh
+            bool useSubMesh() const
+            {
+                return setName_.size() > 0;
+            }
+
+            //- topology
+            const vtkTopo& topo() const
+            {
+                if (!topoPtr_)
+                {
+                    topoPtr_ = new vtkTopo(mesh());
+                }
+                return *topoPtr_;
+            }
+
+            //- Access either mesh or submesh
+            const fvMesh& mesh() const
+            {
+                if (useSubMesh())
+                {
+                    return subsetter_.subMesh();
+                }
+                else
+                {
+                    return baseMesh_;
+                }
+            }
+
+            //- Number of field cells
+            label nFieldCells() const
+            {
+                return topo().cellTypes().size();
+            }
+
+            //- Number of field points
+            label nFieldPoints() const
+            {
+                return mesh().nPoints() + topo().addPointCellLabels().size();
+            }
+
+
+        // Edit
+
+            //- Read mesh
+            polyMesh::readUpdateState readUpdate();
+
+
+            //- Map volume field (does in fact do very little interpolation;
+            //  just copied from fvMeshSubset)
+            template<class GeoField>
+            tmp<GeoField> interpolate(const GeoField& fld) const
+            {
+                if (useSubMesh())
+                {
+                    tmp<GeoField> subFld = subsetter_.interpolate(fld);
+                    subFld().rename(fld.name());
+                    return subFld;
+                }
+                else
+                {
+                    return fld;
+                }
+            }
+
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //