geode.cpp

最新osg包

/**********************************************************************
 *
 *    FILE:            Geode.cpp
 *
 *    DESCRIPTION:    Read/Write osg::Geode in binary format to disk.
 *
 *    CREATED BY:        Auto generated by iveGenerated
 *                    and later modified by Rune Schmidt Jensen.
 *
 *    HISTORY:        Created 18.3.2003
 *
 *    Copyright 2003 VR-C
 **********************************************************************/

#include "Exception.h"
#include "Node.h"
#include "Geode.h"
#include "Geometry.h"

#include <osg/Node>
#include <osg/Geometry>

using namespace ive;

void Geode::write(DataOutputStream* out){
    // Write Geode's identification.
    out->writeInt(IVEGEODE);
    // If the osg class is inherited by any other class we should also write this to file.
    osg::Node*  node = dynamic_cast<osg::Node*>(this);
    if(node){
        ((ive::Node*)(node))->write(out);
    }
    else
        throw Exception("Geode::write(): Could not cast this osg::Geode to an osg::Node.");


    // Write Geode's properties.

    // Write number of drawables.
    out->writeInt(getNumDrawables());
    // Write out every drawable.
        for(unsigned int i=0;i<getNumDrawables();i++){
        osg::Drawable* drawable = getDrawable(i);
#if 0        
        if(dynamic_cast<osg::Geometry*>(drawable))
            ((ive::Geometry*)(drawable))->write(out);
        else{
            throw Exception("Unknown drawable in Geode::write()");
        }
#else
        out->writeDrawable(drawable);
#endif
    }
}

void Geode::read(DataInputStream* in){
    // Read Geode's identification.
    int id = in->peekInt();
    if(id == IVEGEODE){
        // Code to read Geode's properties.
        id = in->readInt();
        // If the osg class is inherited by any other class we should also read this from file.
        osg::Node*  node = dynamic_cast<osg::Node*>(this);
        if(node){
            ((ive::Node*)(node))->read(in);
        }
        else
            throw Exception("Geode::read(): Could not cast this osg::Geode to an osg::Node.");


        // Read number of drawables.
        int size = in->readInt();
        // Read the drawables.
        for(int i = 0; i<size; i++){
#if 0        
            int id = in->peekInt();
            osg::Drawable* drawable;
            if(id == IVEGEOMETRY){
                drawable = new osg::Geometry();                
                ((Geometry*)(drawable))->read(in);
                addDrawable(drawable);
            }
            else
                throw Exception("Unknown drawable identification in Geode::read()");
#else
            addDrawable(in->readDrawable());
#endif        
        }
    }
    else{
        throw Exception("Geode::read(): Expected Geode identification.");
    }
}