dev_fdaPDE/Matrix_Assembler.h at master · simonepanzeri/dev_fdaPDE · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
//
// Created by simonepanzeri on 26/11/2021.
//

#ifndef DEV_FDAPDE_MATRIX_ASSEMBLER_H
#define DEV_FDAPDE_MATRIX_ASSEMBLER_H

#include "FdaPDE.h"
#include "Mesh_Objects.h"
#include "Spline.h"
#include "Param_Functors.h"
#include "Pde_Expression_Templates.h"
#include "Finite_Element.h"
#include "Integration.h"

//Forward declarations to avoid unnecessary includes
template <UInt ORDER, UInt mydim, UInt ndim>
class MeshHandler;

template <UInt ORDER, UInt mydim, UInt ndim>
class FiniteElement;

template<typename A>
class EOExpr;


//!A Assembler class: discretize a generic differential operator in a sparse matrix
//template<UInt mydim, UInt ndim>
struct Assembler{
    //! A template member taking three arguments: discretize differential operator
    /*!
     * \param oper is a template expression : the differential operator to be discretized.
     * \param mesh is const reference to a MeshHandler<ORDER,2,2>: the mesh where we want to discretize the operator.
     * \param fe is a const reference to a FiniteElement
     * stores the discretization in SPoper_mat_
     */

    //Return triplets vector
    template<UInt ORDER, UInt mydim, UInt ndim, typename A>
    static void operKernel(EOExpr<A> oper, const MeshHandler<ORDER,mydim,ndim>& mesh,
                           FiniteElement<ORDER,mydim,ndim>& fe, SpMat& OpMat);

    template<UInt ORDER, UInt mydim, UInt ndim>
    static void forcingTerm(const MeshHandler<ORDER,mydim,ndim>& mesh, FiniteElement<ORDER,mydim,ndim>& fe, const ForcingTerm& u, VectorXr& forcingTerm);

    template<UInt DEGREE, UInt ORDER_DERIVATIVE>
    static void operKernel(const Spline<DEGREE, ORDER_DERIVATIVE>& spline, SpMat& OpMat);

};

#include "Matrix_Assembler_imp.h"

#endif //DEV_FDAPDE_MATRIX_ASSEMBLER_H