ENH: distanceSurface: use either cell (default) or cross-cell isosurface

src/sampling/sampledSurface/distanceSurface/distanceSurface.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) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -49,6 +49,8 @@ void Foam::distanceSurface::createGeometry()
 
     // Clear any stored topologies
     facesPtr_.clear();
+    isoSurfCellPtr_.clear();
+    isoSurfPtr_.clear();
 
     // Clear derived data
     clearGeom();
@@ -265,6 +267,22 @@ void Foam::distanceSurface::createGeometry()
 
 
     //- Direct from cell field and point field.
+    if (cell_)
+    {
+        isoSurfCellPtr_.reset
+        (
+            new isoSurfaceCell
+            (
+                fvm,
+                cellDistance,
+                pointDistance_,
+                distance_,
+                regularise_
+            )
+        );
+    }
+    else
+    {
         isoSurfPtr_.reset
         (
             new isoSurface
@@ -274,15 +292,8 @@ void Foam::distanceSurface::createGeometry()
                 distance_,
                 regularise_
             )
-        //new isoSurfaceCell
-        //(
-        //    fvm,
-        //    cellDistance,
-        //    pointDistance_,
-        //    distance_,
-        //    regularise_
-        //)
         );
+    }
 
     if (debug)
     {
@@ -321,10 +332,12 @@ Foam::distanceSurface::distanceSurface
     ),
     distance_(readScalar(dict.lookup("distance"))),
     signed_(readBool(dict.lookup("signed"))),
+    cell_(dict.lookupOrDefault("cell", true)),
     regularise_(dict.lookupOrDefault("regularise", true)),
     average_(dict.lookupOrDefault("average", false)),
     zoneKey_(keyType::null),
     needsUpdate_(true),
+    isoSurfCellPtr_(NULL),
     isoSurfPtr_(NULL),
     facesPtr_(NULL)
 {
@@ -338,6 +351,52 @@ Foam::distanceSurface::distanceSurface
 }
 
 
+
+Foam::distanceSurface::distanceSurface
+(
+    const word& name,
+    const polyMesh& mesh,
+    const bool interpolate,
+    const word& surfaceType,
+    const word& surfaceName,
+    const scalar distance,
+    const bool signedDistance,
+    const bool cell,
+    const Switch regularise,
+    const Switch average
+)
+:
+    sampledSurface(name, mesh, interpolate),
+    surfPtr_
+    (
+        searchableSurface::New
+        (
+            surfaceType,
+            IOobject
+            (
+                surfaceName,  // name
+                mesh.time().constant(),                     // directory
+                "triSurface",                               // instance
+                mesh.time(),                                // registry
+                IOobject::MUST_READ,
+                IOobject::NO_WRITE
+            ),
+            dictionary()
+        )
+    ),
+    distance_(distance),
+    signed_(signedDistance),
+    cell_(cell),
+    regularise_(regularise),
+    average_(average),
+    zoneKey_(keyType::null),
+    needsUpdate_(true),
+    isoSurfCellPtr_(NULL),
+    isoSurfPtr_(NULL),
+    facesPtr_(NULL)
+{}
+
+
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 Foam::distanceSurface::~distanceSurface()

src/sampling/sampledSurface/distanceSurface/distanceSurface.H

@@ -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) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,6 +27,8 @@ Class
 Description
     A sampledSurface defined by a distance to a surface.
 
+    Uses either isoSurfaceCell or isoSurface.
+
 SourceFiles
     distanceSurface.C
 
@@ -37,7 +39,7 @@ SourceFiles
 
 #include "sampledSurface.H"
 #include "searchableSurface.H"
-//#include "isoSurfaceCell.H"
+#include "isoSurfaceCell.H"
 #include "isoSurface.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -64,6 +66,9 @@ class distanceSurface
         //- signed distance
         const bool signed_;
 
+        //- Whether to use isoSurfaceCell or isoSurface
+        const bool cell_;
+
         //- Whether to coarsen
         const Switch regularise_;
 
@@ -84,7 +89,9 @@ class distanceSurface
         scalarField pointDistance_;
 
         //- Constructed iso surface
-        //autoPtr<isoSurfaceCell> isoSurfPtr_;
+        autoPtr<isoSurfaceCell> isoSurfCellPtr_;
+
+        //- Constructed iso surface
         autoPtr<isoSurface> isoSurfPtr_;
 
         //- triangles converted to faceList
@@ -125,6 +132,21 @@ public:
             const dictionary& dict
         );
 
+        //- Construct from components
+        distanceSurface
+        (
+            const word& name,
+            const polyMesh& mesh,
+            const bool interpolate,
+            const word& surfaceType,
+            const word& surfaceName,
+            const scalar distance,
+            const bool signedDistance,
+            const bool cell,
+            const Switch regularise,
+            const Switch average
+        );
+
 
     //- Destructor
     virtual ~distanceSurface();
@@ -167,12 +189,17 @@ public:
             return facesPtr_;
         }
 
-
+        const triSurface& surface() const
-        //const isoSurfaceCell& surface() const
+        {
-        const isoSurface& surface() const
+            if (cell_)
+            {
+                return isoSurfCellPtr_();
+            }
+            else
             {
                 return isoSurfPtr_();
             }
+        }
 
         //- sample field on surface
         virtual tmp<scalarField> sample

src/sampling/sampledSurface/distanceSurface/distanceSurfaceTemplates.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) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -37,7 +37,20 @@ Foam::distanceSurface::sampleField
     const GeometricField<Type, fvPatchField, volMesh>& vField
 ) const
 {
-    return tmp<Field<Type> >(new Field<Type>(vField, surface().meshCells()));
+    if (cell_)
+    {
+        return tmp<Field<Type> >
+        (
+            new Field<Type>(vField, isoSurfCellPtr_().meshCells())
+        );
+    }
+    else
+    {
+        return tmp<Field<Type> >
+        (
+            new Field<Type>(vField, isoSurfPtr_().meshCells())
+        );
+    }
 }
 
 
@@ -60,7 +73,9 @@ Foam::distanceSurface::interpolateField
     );
 
     // Sample.
-    return surface().interpolate
+    if (cell_)
+    {
+        return isoSurfCellPtr_().interpolate
         (
             (
                 average_
@@ -70,6 +85,19 @@ Foam::distanceSurface::interpolateField
             pointFld()
         );
     }
+    else
+    {
+        return isoSurfPtr_().interpolate
+        (
+            (
+                average_
+              ? pointAverage(pointFld())()
+              : volFld
+            ),
+            pointFld()
+        );
+    }
+}
 
 
 // ************************************************************************* //