ENH: Updates to the kinematic cloud API

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/KinematicCloud.H

@@ -456,6 +456,9 @@ public:
 
         // Check
 
+            //- Total number of parcels
+            inline label nParcels() const;
+
             //- Total mass in system
             inline scalar massInSystem() const;
 

src/lagrangian/intermediate/clouds/Templates/KinematicCloud/KinematicCloudI.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
@@ -227,6 +227,13 @@ Foam::KinematicCloud<CloudType>::UIntegrator() const
 }
 
 
+template<class CloudType>
+inline Foam::label Foam::KinematicCloud<CloudType>::nParcels() const
+{
+    return this->size();
+}
+
+
 template<class CloudType>
 inline Foam::scalar Foam::KinematicCloud<CloudType>::massInSystem() const
 {

src/lagrangian/intermediate/clouds/baseClasses/kinematicCloud/kinematicCloud.H

@@ -36,6 +36,7 @@ SourceFiles
 #define kinematicCloud_H
 
 #include "typeInfo.H"
+#include "volFieldsFwd.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //