84 lines
2.6 KiB
C++
84 lines
2.6 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 "HeightFieldLayer.h"
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#include "Layer.h"
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#include <osgDB/ReadFile>
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using namespace ive;
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void HeightFieldLayer::write(DataOutputStream* out)
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{
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// Write Layer's identification.
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out->writeInt(IVEHEIGHTFIELDLAYER);
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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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osgTerrain::Layer* layer = dynamic_cast<osgTerrain::Layer*>(this);
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if (layer)
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((ive::Layer*)(layer))->write(out);
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else
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throw Exception("HeightFieldLayer::write(): Could not cast this osgLayer::HeightFieldLayer to an osgTerrain::Layer.");
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if (getFileName().empty() && getHeightField())
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{
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// using inline heightfield
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out->writeBool(true);
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out->writeShape(getHeightField());
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}
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else
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{
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// using external heightfield file
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out->writeBool(false);
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out->writeString(getFileName());
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}
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}
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void HeightFieldLayer::read(DataInputStream* in)
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{
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// Peek on Layer's identification.
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int id = in->peekInt();
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if (id != IVEHEIGHTFIELDLAYER)
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throw Exception("HeightFieldLayer::read(): Expected HeightFieldLayer identification.");
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// Read Layer's identification.
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id = in->readInt();
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// If the osg class is inherited by any other class we should also read this from file.
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osgTerrain::Layer* layer = dynamic_cast<osgTerrain::Layer*>(this);
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if (layer)
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((ive::Layer*)(layer))->read(in);
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else
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throw Exception("HeightFieldLayer::read(): Could not cast this osgLayer::Layer to an osg::Group.");
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bool useInlineHeightField = in->readBool();
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if (useInlineHeightField)
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{
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osg::Shape* shape = in->readShape();
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setHeightField(dynamic_cast<osg::HeightField*>(shape));
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}
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else
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{
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std::string filename = in->readString();
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setFileName(filename);
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setHeightField(osgDB::readHeightFieldFile(filename,in->getOptions()));
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}
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}
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