MassMatrixLinear.h

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// 
//  This file is part of the FFEA simulation package
//  
//  Copyright (c) by the Theory and Development FFEA teams,
//  as they appear in the README.md file. 
// 
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//  GNU General Public License for more details.
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#ifndef MASSMATRIXLINEAR_H_INCLUDED
#define MASSMATRIXLINEAR_H_INCLUDED

#define NUM_ELEMENTS_LOWER_TRIANGULAR_4X4 10

#define NUM_LINEAR_SHAPE_FUNCTIONS 4

#include "mat_vec_types.h"
#include "dimensions.h"
class MassMatrixLinear {
public:
    MassMatrixLinear();

    scalar * get_M_alpha_mem_loc(int i, int j);

    void build(scalar density, scalar vol);

    scalar get_M_alpha_value(int i, int j);
    void print_details();
private:
    scalar M_alpha[NUM_ELEMENTS_LOWER_TRIANGULAR_4X4];

    void zero();
};


#endif