///////////////////////////////////////////////////////////////////////////////
//
// File $Source: /usr/sci/projects/Nektar/cvs/Nektar++/library/LocalRegions/PointExp.h,v $
//
// For more information, please see: http://www.nektar.info
//
// The MIT License
//
// Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
// Department of Aeronautics, Imperial College London (UK), and Scientific
// Computing and Imaging Institute, University of Utah (USA).
//
// License for the specific language governing rights and limitations under
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// Description: Definition of a Point expansion 
//
///////////////////////////////////////////////////////////////////////////////

#ifndef NEKTAR_LIBS_STDREGIONS_STDPOINTEXP_H
#define NEKTAR_LIBS_STDREGIONS_STDPOINTEXP_H

#include <StdRegions/StdExpansion0D.h>
#include <StdRegions/StdRegionsDeclspec.h>


namespace Nektar
{
    namespace StdRegions
    {
        class StdPointExp: virtual public StdExpansion0D
        {
        public:
		
            STD_REGIONS_EXPORT StdPointExp();
            STD_REGIONS_EXPORT StdPointExp(const LibUtilities::BasisKey &Ba);
            STD_REGIONS_EXPORT StdPointExp(const StdPointExp &T);
            STD_REGIONS_EXPORT ~StdPointExp();
		
        protected:
            //----------------------------
            // Evaluations Methods
            //---------------------------
            STD_REGIONS_EXPORT virtual void v_GetCoords(
                Array<OneD, NekDouble> &coords_0,
                Array<OneD, NekDouble> &coords_1,
                Array<OneD, NekDouble> &coords_2);
            
            //----------------------------
            // Helper functions
            //---------------------------
            STD_REGIONS_EXPORT virtual LibUtilities::ShapeType
                v_DetShapeType() const;
            
            //-----------------------------
            // Transforms
            //-----------------------------
            STD_REGIONS_EXPORT virtual void v_BwdTrans(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray);
            STD_REGIONS_EXPORT virtual void v_FwdTrans(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray);
            STD_REGIONS_EXPORT virtual void v_BwdTrans_SumFac(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray);
            STD_REGIONS_EXPORT virtual void v_FwdTrans_BndConstrained(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray);
            
            //----------------------------
            // Inner product functions
            //----------------------------
            STD_REGIONS_EXPORT virtual void v_IProductWRTBase(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray);
            STD_REGIONS_EXPORT virtual void v_IProductWRTBase(
                const Array<OneD, const NekDouble>& base,
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray,
                int coll_check);
            STD_REGIONS_EXPORT virtual void v_IProductWRTBase_SumFac(
                const Array<OneD, const NekDouble>& inarray,
                Array<OneD, NekDouble> &outarray,
                bool multiplybyweights= true);
            STD_REGIONS_EXPORT virtual void v_IProductWRTDerivBase(
                const int dir,
                const Array<OneD, const NekDouble> &inarray,
                Array<OneD, NekDouble> &outarray);

            //---------------------------
            // Evaluations Methods
            //---------------------------
            STD_REGIONS_EXPORT virtual DNekMatSharedPtr v_GenMatrix(
                const StdMatrixKey &mkey);
            STD_REGIONS_EXPORT virtual DNekMatSharedPtr v_CreateStdMatrix(
                const StdMatrixKey &mkey);
            
        private:
            virtual int v_GetNverts() const
            {
                return 1;
            }

            virtual int v_GetVertexMap(
                int localVertexId, bool useCoeffPacking = false)
            {
                ASSERTL2(localVertexId == 0,
                         "Only single point in StdPointExp!");
                return 0;
            }
        };

        // type defines for use of PointExp in a boost vector
        typedef boost::shared_ptr<StdPointExp> StdPointExpSharedPtr;
    } //end of namespace
} //end of namespace

#endif // STDPOINTEXP_H
