adding -fields option

applications/utilities/parallelProcessing/reconstructPar/fvFieldReconstructor.H

@@ -151,18 +151,20 @@ public:
             const IOobject& fieldIoObject
         );
 
-        //- Reconstruct and write all volume fields
+        //- Reconstruct and write all/selected volume fields
         template<class Type>
         void reconstructFvVolumeFields
         (
-            const IOobjectList& objects
+            const IOobjectList& objects,
+            const HashSet<word>& selectedFields
         );
 
-        //- Reconstruct and write all volume fields
+        //- Reconstruct and write all/selected volume fields
         template<class Type>
         void reconstructFvSurfaceFields
         (
-            const IOobjectList& objects
+            const IOobjectList& objects,
+            const HashSet<word>& selectedFields
         );
 };
 

applications/utilities/parallelProcessing/reconstructPar/fvFieldReconstructorReconstructFields.C

@@ -131,7 +131,7 @@ Foam::fvFieldReconstructor::reconstructFvVolumeField
                 forAll(cp, faceI)
                 {
                     // Subtract one to take into account offsets for
-                    // face direction.  
+                    // face direction.
                     reverseAddressing[faceI] = cp[faceI] - 1 - curPatchStart;
                 }
 
@@ -151,7 +151,7 @@ Foam::fvFieldReconstructor::reconstructFvVolumeField
                 forAll(cp, faceI)
                 {
                     // Subtract one to take into account offsets for
-                    // face direction.  
+                    // face direction.
                     label curF = cp[faceI] - 1;
 
                     // Is the face on the boundary?
@@ -282,7 +282,7 @@ Foam::fvFieldReconstructor::reconstructFvSurfaceField
 
         // It is necessary to create a copy of the addressing array to
         // take care of the face direction offset trick.
-        // 
+        //
         {
             labelList curAddr(faceProcAddressing_[procI]);
 
@@ -342,7 +342,7 @@ Foam::fvFieldReconstructor::reconstructFvSurfaceField
                 forAll(cp, faceI)
                 {
                     // Subtract one to take into account offsets for
-                    // face direction.  
+                    // face direction.
                     reverseAddressing[faceI] = cp[faceI] - 1 - curPatchStart;
                 }
 
@@ -452,11 +452,12 @@ Foam::fvFieldReconstructor::reconstructFvSurfaceField
 }
 
 
-// Reconstruct and write all volume fields
+// Reconstruct and write all/selected volume fields
 template<class Type>
 void Foam::fvFieldReconstructor::reconstructFvVolumeFields
 (
-    const IOobjectList& objects
+    const IOobjectList& objects,
+    const HashSet<word>& selectedFields
 )
 {
     const word& fieldClassName =
@@ -468,27 +469,29 @@ void Foam::fvFieldReconstructor::reconstructFvVolumeFields
     {
         Info<< "    Reconstructing " << fieldClassName << "s\n" << endl;
 
-        for
-        (
-            IOobjectList::const_iterator fieldIter = fields.begin();
-            fieldIter != fields.end();
-            ++fieldIter
-        )
+        forAllConstIter(IOobjectList, fields, fieldIter)
         {
-            Info<< "        " << fieldIter()->name() << endl;
+            if
+            (
+                !selectedFields.size()
+             || selectedFields.found(fieldIter()->name())
+            )
+            {
+                Info<< "        " << fieldIter()->name() << endl;
 
-            reconstructFvVolumeField<Type>(*fieldIter())().write();
+                reconstructFvVolumeField<Type>(*fieldIter())().write();
+            }
         }
-
         Info<< endl;
     }
 }
 
-// Reconstruct and write all surface fields
+// Reconstruct and write all/selected surface fields
 template<class Type>
 void Foam::fvFieldReconstructor::reconstructFvSurfaceFields
 (
-    const IOobjectList& objects
+    const IOobjectList& objects,
+    const HashSet<word>& selectedFields
 )
 {
     const word& fieldClassName =
@@ -500,18 +503,19 @@ void Foam::fvFieldReconstructor::reconstructFvSurfaceFields
     {
         Info<< "    Reconstructing " << fieldClassName << "s\n" << endl;
 
-        for
-        (
-            IOobjectList::const_iterator fieldIter = fields.begin();
-            fieldIter != fields.end();
-            ++fieldIter
-        )
+        forAllConstIter(IOobjectList, fields, fieldIter)
         {
-            Info<< "        " << fieldIter()->name() << endl;
+            if
+            (
+                !selectedFields.size()
+             || selectedFields.found(fieldIter()->name())
+            )
+            {
+                Info<< "        " << fieldIter()->name() << endl;
 
-            reconstructFvSurfaceField<Type>(*fieldIter())().write();
+                reconstructFvSurfaceField<Type>(*fieldIter())().write();
+            }
         }
-
         Info<< endl;
     }
 }

applications/utilities/parallelProcessing/reconstructPar/reconstructPar.C

@@ -48,9 +48,17 @@ int main(int argc, char *argv[])
     argList::noParallel();
     timeSelector::addOptions();
 #   include "addRegionOption.H"
+    argList::validOptions.insert("fields", "\"(list of fields)\"");
+
 #   include "setRootCase.H"
 #   include "createTime.H"
 
+    HashSet<word> selectedFields;
+    if (args.options().found("fields"))
+    {
+        IStringStream(args.options()["fields"])() >> selectedFields;
+    }
+
     // determine the processor count directly
     label nProcs = 0;
     while (dir(args.path()/(word("processor") + name(nProcs))))
@@ -184,13 +192,37 @@ int main(int argc, char *argv[])
                 procMeshes.boundaryProcAddressing()
             );
 
-            fvReconstructor.reconstructFvVolumeFields<scalar>(objects);
-            fvReconstructor.reconstructFvVolumeFields<vector>(objects);
-            fvReconstructor.reconstructFvVolumeFields<sphericalTensor>(objects);
-            fvReconstructor.reconstructFvVolumeFields<symmTensor>(objects);
-            fvReconstructor.reconstructFvVolumeFields<tensor>(objects);
+            fvReconstructor.reconstructFvVolumeFields<scalar>
+            (
+                objects,
+                selectedFields
+            );
+            fvReconstructor.reconstructFvVolumeFields<vector>
+            (
+                objects,
+                selectedFields
+            );
+            fvReconstructor.reconstructFvVolumeFields<sphericalTensor>
+            (
+                objects,
+                selectedFields
+            );
+            fvReconstructor.reconstructFvVolumeFields<symmTensor>
+            (
+                objects,
+                selectedFields
+            );
+            fvReconstructor.reconstructFvVolumeFields<tensor>
+            (
+                objects,
+                selectedFields
+            );
 
-            fvReconstructor.reconstructFvSurfaceFields<scalar>(objects);
+            fvReconstructor.reconstructFvSurfaceFields<scalar>
+            (
+                objects,
+                selectedFields
+            );
         }
         else
         {