/usr/include/osgEarth/ClampableNode is in libosgearth-dev 2.4.0+dfsg-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2008-2011 Pelican Mapping
* http://osgearth.org
*
* osgEarth 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>
*/
#ifndef OSGEARTH_CLAMPABLE_NODE_H
#define OSGEARTH_CLAMPABLE_NODE_H 1
#include <osgEarth/Common>
#include <osgEarth/DepthOffset>
#include <osgEarth/OverlayNode>
#include <osg/Group>
namespace osgEarth
{
class MapNode;
/**
* Node graph that can be "clamped" on the MapNode terrain
* using the overlay decorator.
*
* Usage: Create this node and put it anywhere in the scene graph. The
* subgraph of this node will be draped on the MapNode's terrain.
*/
class OSGEARTH_EXPORT ClampableNode : public OverlayNode
{
public:
/**
* Constructs a new clampable node.
*/
ClampableNode( MapNode* mapNode, bool clamped =true );
public:
/** Depth Offsetting properties. Clamped geometry is automatically
* subjected to depth offsetting to mitigate z-buffer conflicts */
DepthOffsetOptions& depthOffset() { dirtyDepthOffsetOptions(); return _do; }
const DepthOffsetOptions& depthOffset() const { return _do; }
/** Automatically attempt to select a minimum bias based on an analysis
* of the subgraph's geometry. */
void setAutoCalculateDepthOffset();
/** Backwards compatibility */
void setClamped( bool value ) { setActive(value); }
bool getClamped() const { return getActive(); }
public: // osg::Node
virtual osg::BoundingSphere computeBound() const;
virtual void traverse(osg::NodeVisitor& nv);
protected:
/** dtor */
virtual ~ClampableNode() { }
bool _autoBias;
mutable osg::ref_ptr<osg::Uniform> _biasUniform;
mutable osg::ref_ptr<osg::Uniform> _rangeUniform;
mutable DepthOffsetOptions _do;
bool _doDirty;
void init();
void dirtyDepthOffsetOptions();
void applyDepthOffsetOptions();
};
} // namespace osgEarth
#endif // OSGEARTH_CLAMPABLE_NODE_H
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