/usr/include/simgear/bvh/BVHStaticBinary.hxx is in libsimgear-dev 3.4.0-3.
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 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 BVHStaticBinary_hxx
#define BVHStaticBinary_hxx
#include <simgear/math/SGGeometry.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include "BVHStaticNode.hxx"
namespace simgear {
class BVHStaticBinary : public BVHStaticNode {
public:
BVHStaticBinary(unsigned splitAxis, const BVHStaticNode* leftChild,
const BVHStaticNode* rightChild, const SGBoxf& box);
virtual ~BVHStaticBinary();
virtual void accept(BVHVisitor& visitor, const BVHStaticData& data) const;
void traverse(BVHVisitor& visitor, const BVHStaticData& data) const
{
_leftChild->accept(visitor, data);
_rightChild->accept(visitor, data);
}
// Traverse call that first enters the child node that is potentially closer
// to the given point than the other.
template<typename T>
void traverse(BVHVisitor& visitor, const BVHStaticData& data,
const SGVec3<T>& pt) const
{
float center = 0.5f*(_boundingBox.getMin()[_splitAxis]
+ _boundingBox.getMax()[_splitAxis]);
if (pt[_splitAxis] < center) {
_leftChild->accept(visitor, data);
_rightChild->accept(visitor, data);
} else {
_rightChild->accept(visitor, data);
_leftChild->accept(visitor, data);
}
}
unsigned getSplitAxis() const
{ return _splitAxis; }
const BVHStaticNode* getLeftChild() const
{ return _leftChild; }
const BVHStaticNode* getRightChild() const
{ return _rightChild; }
const SGBoxf& getBoundingBox() const
{ return _boundingBox; }
private:
// Note the order of the members, this is to avoid padding
unsigned _splitAxis;
SGSharedPtr<const BVHStaticNode> _leftChild;
SGSharedPtr<const BVHStaticNode> _rightChild;
SGBoxf _boundingBox;
};
}
#endif
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