adding particle tracking functionality

src/lagrangian/basic/ParticleTrackingData/ParticleTrackingDataI.H

@@ -0,0 +1,49 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+template<class ParcelType>
+inline const Foam::Cloud<ParcelType>&
+Foam::ParticleTrackingData<ParcelType>::cloud() const
+{
+    return cloud_;
+}
+
+
+template<class ParcelType>
+inline Foam::label Foam::ParticleTrackingData<ParcelType>::origProc() const
+{
+    return origProc_;
+}
+
+
+template<class ParcelType>
+inline Foam::label Foam::ParticleTrackingData<ParcelType>::id() const
+{
+    return id_;
+}
+
+
+// ************************************************************************* //