/usr/include/simgear/bvh/BVHBoundingBoxVisitor.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.
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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 BVHBoundingBoxVisitor_hxx
#define BVHBoundingBoxVisitor_hxx
#include <simgear/math/SGGeometry.hxx>
#include "BVHVisitor.hxx"
#include "BVHNode.hxx"
#include "BVHGroup.hxx"
#include "BVHPageNode.hxx"
#include "BVHTransform.hxx"
#include "BVHMotionTransform.hxx"
#include "BVHLineGeometry.hxx"
#include "BVHStaticData.hxx"
#include "BVHStaticNode.hxx"
#include "BVHStaticTriangle.hxx"
#include "BVHStaticBinary.hxx"
#include "BVHStaticGeometry.hxx"
namespace simgear {
class BVHBoundingBoxVisitor : public BVHVisitor {
public:
virtual ~BVHBoundingBoxVisitor() {}
void clear()
{ _box.clear(); }
virtual void apply(BVHGroup& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(BVHPageNode& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(BVHTransform& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(BVHMotionTransform& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(BVHLineGeometry& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(BVHStaticGeometry& node)
{ expandBy(node.getBoundingSphere()); }
virtual void apply(const BVHStaticBinary& node, const BVHStaticData& data)
{ expandBy(node.getBoundingBox()); }
virtual void apply(const BVHStaticTriangle& node, const BVHStaticData& data)
{ expandBy(node.computeBoundingBox(data)); }
const SGBoxf& getBox() const
{ return _box; }
private:
void expandBy(const SGSphered& sphere)
{
SGVec3f v0(sphere.getCenter() - sphere.getRadius()*SGVec3d(1, 1, 1));
SGVec3f v1(sphere.getCenter() + sphere.getRadius()*SGVec3d(1, 1, 1));
_box.expandBy(SGBoxf(v0, v1));
}
void expandBy(const SGBoxf& box)
{ _box.expandBy(box); }
SGBoxf _box;
};
}
#endif
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