/usr/include/simgear/bvh/BVHNode.hxx is in libsimgear-dev 3.0.0-1.
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 | // Copyright (C) 2008 - 2009 Mathias Froehlich - Mathias.Froehlich@web.de
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef BVHNode_hxx
#define BVHNode_hxx
#include <vector>
#include <simgear/math/SGGeometry.hxx>
#include <simgear/structure/SGReferenced.hxx>
namespace simgear {
class BVHGroup;
class BVHVisitor;
class BVHPageNode;
// Base for the tree nodes
class BVHNode : public SGReferenced {
public:
BVHNode();
virtual ~BVHNode();
// visitors ...
virtual void accept(BVHVisitor& visitor) = 0;
const SGSphered& getBoundingSphere() const
{
if (_dirtyBoundingSphere) {
_boundingSphere = computeBoundingSphere();
_dirtyBoundingSphere = false;
}
return _boundingSphere;
}
virtual SGSphered computeBoundingSphere() const = 0;
/// A unique id for some kind of BVHNodes.
/// Currently only motions transforms.
typedef unsigned Id;
// Factory to get a new id
static Id getNewId();
protected:
friend class BVHGroup;
friend class BVHPageNode;
void addParent(BVHNode* parent);
void removeParent(BVHNode* parent);
void invalidateParentBound();
virtual void invalidateBound();
private:
mutable bool _dirtyBoundingSphere;
mutable SGSphered _boundingSphere;
typedef std::vector<BVHNode*> ParentList;
ParentList _parents;
};
}
#endif
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