ENH: exact: new patchDistMethod

src/parallel/distributed/patchDistMethods/exact/exactPatchDistMethod.H

@@ -0,0 +1,139 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2018 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 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::patchDistMethods::exact
+
+Description
+    Calculation of exact distance to nearest patch for all cells and
+    boundary by constructing a search tree for all patch faces.
+
+See also
+    Foam::patchDistMethod::meshWave
+    Foam::wallDist
+
+SourceFiles
+    exactPatchDistMethod.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef exactPatchDistMethod_H
+#define exactPatchDistMethod_H
+
+#include "patchDistMethod.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class distributedTriSurfaceMesh;
+
+namespace patchDistMethods
+{
+
+/*---------------------------------------------------------------------------*\
+                          Class exact Declaration
+\*---------------------------------------------------------------------------*/
+
+class exact
+:
+    public patchDistMethod
+{
+    // Private Member Data
+
+        //- Cache surface+searching of patch
+        mutable autoPtr<distributedTriSurfaceMesh> patchSurfPtr_;
+
+
+    // Private Member Functions
+
+        const distributedTriSurfaceMesh& patchSurface() const;
+
+        //- Disallow default bitwise copy construct
+        exact(const exact&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const exact&);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("exactDistance");
+
+
+    // Constructors
+
+        //- Construct from coefficients dictionary, mesh
+        //  and fixed-value patch set
+        exact
+        (
+            const dictionary& dict,
+            const fvMesh& mesh,
+            const labelHashSet& patchIDs
+        );
+
+        //- Construct from mesh and fixed-value patch set
+        exact
+        (
+            const fvMesh& mesh,
+            const labelHashSet& patchIDs
+        );
+
+
+    // Member Functions
+
+        //- Update cached geometry when the mesh moves
+        virtual bool movePoints()
+        {
+            // ? Reconstruct patch surface?
+            //patchSurfPtr_.clear();
+            return true;
+        }
+
+        //- Update cached topology and geometry when the mesh changes
+        virtual void updateMesh(const mapPolyMesh&)
+        {
+            // ? Reconstruct patch surface?
+            //patchSurfPtr_.clear();
+        }
+
+        //- Correct the given distance-to-patch field
+        virtual bool correct(volScalarField& y);
+
+        //- Correct the given distance-to-patch and normal-to-patch fields
+        virtual bool correct(volScalarField& y, volVectorField& n);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace patchDistMethods
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //