Added function to get patch ID from name, and patch Name from ID

Signed-off-by: Philippose Rajan <sarith@rocketmail.com>

meshLibrary/utilities/meshes/polyMeshGen/polyMeshGenFaces.C

@@ -214,7 +214,7 @@ wordList polyMeshGenFaces::patchNames() const
     return t;
 }
 
-label polyMeshGenFaces::findPatchID(const word& patchName) const
+label polyMeshGenFaces::getPatchID(const word& patchName) const
 {
     forAll(boundaries_, patchI)
     {
@@ -232,6 +232,20 @@ label polyMeshGenFaces::findPatchID(const word& patchName) const
     return -1;
 }
 
+word polyMeshGenFaces::getPatchName(const label patchID) const
+{
+    if((patchID < 0) || (patchID >= boundaries_.size()))
+    {
+         FatalErrorIn
+         (
+             "polyMeshGenFaces::getPatchName(const label patchID) const"
+         )   << "invalid patch ID supplied"
+             << abort(FatalError);
+    }
+
+    return boundaries_[patchID].patchName();
+}
+
 labelList polyMeshGenFaces::findPatches(const word& patchName) const
 {
     wordList allPatches = patchNames();

meshLibrary/utilities/meshes/polyMeshGen/polyMeshGenFaces.H

@@ -147,7 +147,10 @@ public:
         wordList patchNames() const;
 
         //- return the index of a patch given its name
-        label findPatchID(const word& patchName) const;
+        label getPatchID(const word& patchName) const;
+
+        //- return the name of a patch given its ID
+        word getPatchName(const label patchID) const;
         
         //- return a list of patch indices corresponding to the given 
         // name, expanding regular expressions