77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGTerrain
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#define OSGTerrain 1
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#include <osg/Group>
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#include <osg/CoordinateSystemNode>
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#include <osgTerrain/TerrainTile>
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namespace osgTerrain {
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/** Terrain provides a framework for loosely coupling height field data with height rendering algorithms.
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* This allows TerrainTechnique's to be plugged in at runtime.*/
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class OSGTERRAIN_EXPORT Terrain : public osg::Group
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{
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public:
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Terrain();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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Terrain(const Terrain&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Node(osgTerrain, Terrain);
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virtual void traverse(osg::NodeVisitor& nv);
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/** Set the sample ratio hint that TerrainTile should use when building geometry.
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* Defaults to 1.0, which means use all original sample points.*/
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void setSampleRatio(float ratio) { _sampleRatio = ratio; }
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/** Get the sample ratio hint.*/
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float getSampleRatio() const { return _sampleRatio; }
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/** Get the TerrainTile for a given TileID.*/
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TerrainTile* getTile(const TileID& tileID);
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/** Get the const TerrainTile for a given TileID.*/
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const TerrainTile* getTile(const TileID& tileID) const;
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protected:
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virtual ~Terrain();
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friend class TerrainTile;
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void registerTerrainTile(TerrainTile* tile);
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void unregisterTerrainTile(TerrainTile* tile);
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typedef std::map< TileID, TerrainTile* > TerrainTileMap;
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typedef std::set< TerrainTile* > TerrainTileSet;
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float _sampleRatio;
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mutable OpenThreads::Mutex _mutex;
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TerrainTileSet _terrainTileSet;
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TerrainTileMap _terrainTileMap;
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};
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}
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#endif
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