/usr/include/rheolef/basis_on_pointset.h is in librheolef-dev 6.7-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | #ifndef _RHEO_BASIS_ON_POINTSET_H
#define _RHEO_BASIS_ON_POINTSET_H
///
/// This file is part of Rheolef.
///
/// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
///
/// Rheolef 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.
///
/// Rheolef 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 Rheolef; if not, write to the Free Software
/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///
/// =========================================================================
//! Pre-compute a piola transformation polynomial basis
//! on a lattice definied on the reference element.
//! The computation is performed one time for all
//! the first time the reference element appears.
//! Thus, when looping on the mesh for the Lagrange interpolation
//! on a Lagrange nodal basis : the lattice is the set of nodes
//! the evaluation of the fem polynomial basis.
//! The evaluation is performed only one time.
#include "rheolef/basis.h"
#include "rheolef/quadrature.h"
namespace rheolef {
// -----------------------------------------------------------------------
// basis evaluated on lattice of quadrature formulae
// -----------------------------------------------------------------------
template<class T>
class basis_on_pointset {
public:
typedef typename std::vector<T>::size_type size_type;
typedef typename std::vector<T>::const_iterator const_iterator;
typedef typename std::vector<point_basic<T> >::const_iterator const_iterator_grad;
// allocators:
basis_on_pointset ();
basis_on_pointset (const basis_on_pointset<T>&);
basis_on_pointset (const quadrature<T>& quad, const basis_basic<T>& b);
basis_on_pointset (const basis_basic<T>& nb, const basis_basic<T>& b);
// modifiers:
void set (const quadrature<T>& quad, const basis_basic<T>& b);
void set (const basis_basic<T>& nb, const basis_basic<T>& b);
// accessors:
const basis_basic<T>& get_basis() const { return _b; }
size_type size (reference_element hat_K) const;
void restrict_on_side (reference_element tilde_L, const side_information_type& sid);
void evaluate (reference_element hat_K, size_type q) const;
void evaluate_grad (reference_element hat_K, size_type q) const;
void evaluate (reference_element hat_K, const point_basic<T>& hat_xq) const;
void evaluate_grad (reference_element hat_K, const point_basic<T>& hat_xq) const;
const_iterator begin() const;
const_iterator end() const;
const_iterator_grad begin_grad() const;
const_iterator_grad end_grad() const;
// new interface: random accessors
const T& value (size_type loc_idof) const;
const point_basic<T>& grad_value (size_type loc_idof) const;
// data:
typedef enum {
quad_mode = 0,
nodal_mode = 1,
max_mode = 2
} mode_type;
protected:
basis_basic<T> _b;
mutable mode_type _mode;
mutable bool _specific_value;
const quadrature<T>* _p_quad; // when mode: on quadrature pointset
basis_basic<T> _nb; // when mode: on nodal basis pointset
mutable std::array<size_type, reference_element::max_variant> _basis_size;
mutable std::array<std::vector<T>,reference_element::max_variant> _val;
mutable std::array<std::vector<point_basic<T> >,reference_element::max_variant> _grad_val;
mutable std::vector<bool> _initialized;
mutable std::vector<bool> _grad_initialized;
mutable size_type _curr_K_variant;
mutable size_type _curr_q;
void _initialize (reference_element hat_K) const;
void _grad_initialize (reference_element hat_K) const;
};
}// namespace rheolef
#endif // _RHEO_BASIS_ON_POINTSET_H
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