/usr/include/dolfin/generation/CSGGeometry.h is in libdolfin-dev 1.4.0+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// 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/>.
//
// Modified by Benjamin Kehlet, 2012
// Modified by Johannes Ring, 2012
//
// First added: 2012-04-11
// Last changed: 2013-11-12
#ifndef __CSG_GEOMETRY_H
#define __CSG_GEOMETRY_H
#include <cstddef>
#include <vector>
#include <list>
#include <memory>
#include <dolfin/common/Variable.h>
namespace dolfin
{
/// Geometry described by Constructive Solid Geometry (CSG)
class CSGGeometry : public Variable
{
public:
/// Constructor
CSGGeometry();
/// Destructor
virtual ~CSGGeometry();
/// Return dimension of geometry
virtual std::size_t dim() const = 0;
/// Informal string representation
virtual std::string str(bool verbose) const = 0;
/// Define subdomain. This feature is 2D only.
/// The subdomain is itself a CSGGeometry and the corresponding
/// cells in the resulting will be marked with i
/// If subdomains overlap, the latest added will take precedence.
void set_subdomain(std::size_t i, std::shared_ptr<CSGGeometry> s);
void set_subdomain(std::size_t i, CSGGeometry& s);
bool has_subdomains() const;
enum Type { Box, Sphere, Cone, Tetrahedron, Surface3D, Circle, Ellipse, Rectangle, Polygon, Union, Intersection, Difference };
virtual Type getType() const = 0;
virtual bool is_operator() const = 0;
std::list<std::pair<std::size_t, std::shared_ptr<const CSGGeometry> > > subdomains;
};
}
#endif
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