64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 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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#include "Exception.h"
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#include "Terrain.h"
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#include "TerrainTile.h"
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#include "CoordinateSystemNode.h"
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#include <osgTerrain/GeometryTechnique>
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using namespace ive;
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void Terrain::write(DataOutputStream* out)
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{
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// Write Terrain's identification.
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out->writeInt(IVETERRAIN);
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// If the osg class is inherited by any other class we should also write this to file.
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osg::CoordinateSystemNode* csn = dynamic_cast<osg::CoordinateSystemNode*>(this);
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if(csn)
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((ive::CoordinateSystemNode*)(csn))->write(out);
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else
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out_THROW_EXCEPTION("Terrain::write(): Could not cast this osgTerrain::Terrain to an osg::CoordinateSystemNode.");
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out->writeFloat(getSampleRatio());
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out->writeFloat(getVerticalScale());
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out->writeInt(getBlendingPolicy());
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TerrainTile::writeTerrainTechnique(out, getTerrainTechniquePrototype());
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}
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void Terrain::read(DataInputStream* in)
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{
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// Peek on Terrain's identification.
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int id = in->peekInt();
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if (id != IVETERRAIN) in_THROW_EXCEPTION("TerrainTile::read(): Expected Terrain identification.");
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// Read Terrain's identification.
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id = in->readInt();
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osg::CoordinateSystemNode* csn = dynamic_cast<osg::CoordinateSystemNode*>(this);
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if(csn)
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((ive::CoordinateSystemNode*)(csn))->read(in);
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else
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in_THROW_EXCEPTION("Terrain::read(): Could not cast this osgTerran::Terrain to an osg::CoordinateSystemNode.");
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setSampleRatio(in->readFloat());
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setVerticalScale(in->readFloat());
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setBlendingPolicy(static_cast<osgTerrain::TerrainTile::BlendingPolicy>(in->readInt()));
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setTerrainTechniquePrototype(TerrainTile::readTerrainTechnique(in));
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}
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