/usr/include/dolfin/function/MultiMeshFunction.h is in libdolfin-dev 2017.2.0.post0-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | // Copyright (C) 2013-2016 Anders Logg
//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// First added: 2013-09-25
// Last changed: 2016-03-02
#ifndef __MULTI_MESH_FUNCTION_H
#define __MULTI_MESH_FUNCTION_H
#include <memory>
#include <boost/ptr_container/ptr_map.hpp>
#include <dolfin/common/Variable.h>
namespace dolfin
{
// Forward declarations
class MultiMeshFunctionSpace;
class GenericVector;
class Function;
class MultiMeshFunction;
class FiniteElement;
/// This class represents a function on a cut and composite finite
/// element function space (MultiMesh) defined on one or more possibly
/// intersecting meshes.
class MultiMeshFunction : public Variable
{
public:
/// Constructor
MultiMeshFunction();
/// Create MultiMesh function on given MultiMesh function space
///
/// *Arguments*
/// V (_MultiMeshFunctionSpace_)
/// The MultiMesh function space.
explicit MultiMeshFunction(std::shared_ptr<const MultiMeshFunctionSpace> V);
/// Create MultiMesh function on given MultiMesh function space with a given vector
/// (shared data)
///
/// *Warning: This constructor is intended for internal library use only*
///
/// *Arguments*
/// V (_MultiMeshFunctionSpace_)
/// The multimesh function space.
/// x (_GenericVector_)
/// The vector.
MultiMeshFunction(std::shared_ptr<const MultiMeshFunctionSpace> V,
std::shared_ptr<GenericVector> x);
/// Destructor
virtual ~MultiMeshFunction();
/// Assign Function to part of a mesh
///
/// *Arguments*
/// a (int)
/// Part mesh assigned to
/// V (_Function_)
/// The vector
void assign_part(std::size_t a, const Function& v);
/// Return function (part) number i
///
/// *Returns*
/// _Function_
/// Function (part) number i
std::shared_ptr<const Function> part(std::size_t i) const;
/// Return a (deepcopy) function (part) number i
///
/// *Returns*
/// _Function_
/// Function (part) number i
/// bool deepcopy flag
std::shared_ptr<const Function> part(std::size_t i, bool deepcopy) const;
/// Return vector of expansion coefficients (non-const version)
///
/// *Returns*
/// _GenericVector_
/// The vector of expansion coefficients.
std::shared_ptr<GenericVector> vector();
/// Return vector of expansion coefficients (const version)
///
/// *Returns*
/// _GenericVector_
/// The vector of expansion coefficients (const).
std::shared_ptr<const GenericVector> vector() const;
/// Return shared pointer to multi mesh function space
///
/// *Returns*
/// _MultiMeshFunctionSpace_
/// Return the shared pointer.
virtual std::shared_ptr<const MultiMeshFunctionSpace> function_space() const
{
return _function_space;
}
/// Restrict function to local cell in given part (compute expansion coefficients w)
///
/// *Arguments*
/// w (list of doubles)
/// Expansion coefficients.
/// element (_FiniteElement_)
/// The element.
/// part (std::size_t)
/// The mesh part
/// dolfin_cell (_Cell_)
/// The cell.
/// ufc_cell (ufc::cell).
/// The ufc::cell.
void restrict(double* w,
const FiniteElement& element,
std::size_t part,
const Cell& dolfin_cell,
const double* coordinate_dofs,
const ufc::cell& ufc_cell) const;
/// Evaluate at given point in given cell in given part
///
/// *Arguments*
/// values (_Array_ <double>)
/// The values at the point.
/// x (_Array_ <double>)
/// The coordinates of the point.
/// cell (ufc::cell)
/// The cell which contains the given point.
void eval(Array<double>& values, const Array<double>& x,
std::size_t part,
const ufc::cell& cell) const;
/// Evaluate at a given point
void eval(Array<double>& values, const Array<double>& x) const;
/// Restrict as UFC function (by calling eval)
void restrict_as_ufc_function(double* w,
const FiniteElement& element,
std::size_t part,
const Cell& dolfin_cell,
const double* coordinate_dofs,
const ufc::cell& ufc_cell) const;
private:
// Initialize vector
void init_vector();
// Compute ghost indices
void compute_ghost_indices(std::pair<std::size_t, std::size_t> range,
std::vector<la_index>& ghost_indices) const;
// The function space
std::shared_ptr<const MultiMeshFunctionSpace> _function_space;
// The vector of expansion coefficients (local)
std::shared_ptr<GenericVector> _vector;
// Cache of regular functions for the parts
mutable std::map<std::size_t, std::shared_ptr<const Function> > _function_parts;
};
}
#endif
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