/usr/include/osgEarthDrivers/engine_mp/TilePagedLOD is in libosgearth-dev 2.7.0+dfsg-2+b3.
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/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2015 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* 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_DRIVERS_MP_TERRAIN_ENGINE_TILE_PAGED_LOD
#define OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_TILE_PAGED_LOD 1
#include "Common"
#include "TileNodeRegistry"
#include <osg/PagedLOD>
#include <osgEarth/ThreadingUtils>
#include <osgEarth/Progress>
using namespace osgEarth;
namespace osgEarth { namespace Drivers { namespace MPTerrainEngine
{
/**
* TilePagedLOD is an extension to osg::PagedLOD that supports the tile
* registry and does LTP bbox culling on subtiles.
*/
class TilePagedLOD : public osg::PagedLOD
{
public:
TilePagedLOD(
const UID& engineUID,
TileNodeRegistry* liveTiles,
TileNodeRegistry* deadTiles);
/**
* Sets a bounding box and localization matrix that will allow
* the PagedLOD to perform pre-emptive tight culling before loading
* its child.
*/
void setChildBoundingBoxAndMatrix(
int childNum,
const osg::BoundingBox& bbox,
const osg::Matrix& world2local);
/** The tilenode in this group */
TileNode* getTileNode();
void setTileNode(TileNode* tilenode);
osgDB::Options* getOrCreateDBOptions();
void setDebug(bool value) { _debug = value; }
public: // osg::Group
/** called by the OSG DatabasePager when a paging result is ready. */
bool addChild( osg::Node* node );
void traverse(osg::NodeVisitor& nv);
public: // osg::PagedLOD
/** override to manage the tile node registries. */
bool removeExpiredChildren(double expiryTime, unsigned expiryFrame, osg::NodeList& removedChildren);
protected:
virtual ~TilePagedLOD();
private:
osg::ref_ptr<TileNodeRegistry> _live;
osg::ref_ptr<TileNodeRegistry> _dead;
UID _engineUID;
Threading::Mutex _updateMutex;
std::vector<osg::BoundingBox> _childBBoxes;
std::vector<osg::Matrix> _childBBoxMatrices;
struct MyProgressCallback : public ProgressCallback
{
bool isCanceled(); // override
unsigned _frameOfLastCull;
TileNodeRegistry* _tiles;
void update(unsigned frame);
};
osg::ref_ptr<MyProgressCallback> _progress;
optional<osg::BoundingBox> _bbox;
bool _debug;
};
} } } // namespace osgEarth::Drivers::MPTerrainEngine
#endif // OSGEARTH_DRIVERS_MP_TERRAIN_ENGINE_TILE_PAGED_LOD
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