C++ osg::NodePtr类代码示例

            //method that will be called when entering
            //a new node
			osg::Action::ResultE enter(osg::NodePtr& node)
			{
                if (node->getCore()->getType().isDerivedFrom(OSG::CharacterBase::getClassType()))
				{
					osg::CharacterPtr charac = osg::CharacterPtr::dcast(node->getCore());
					std::string name;
					if (getName(node))
					{
						name = getName(node);
					}
					else 
					{
						osg::CharacterModelPtr model = charac->getModel();
						name = model->getConfigFile();
						std::cout << "character model file " << name << std::endl;
						std::string::size_type slashpos = name.size()-1;
						slashpos = name.find_last_of("/");
						if(slashpos != name.npos)
							name = name.substr(slashpos+1);
						slashpos = name.size()-1;
						slashpos = name.find_last_of("\\");
						if(slashpos != name.npos)
							name = name.substr(slashpos+1);
						std::string::size_type dotpos = 0;
						dotpos = name.find_last_of(".");
						if(dotpos != name.npos)
							name = name.substr(0, dotpos);
					}
					std::cout << name << " is a character" << std::endl;
					return process(node, charac, name);
				}
                return osg::Action::Continue;
            }

int main(int argc, char **argv)
{
    OSG::NodePtr pRoot;

    int i = 0;

    OSG::osgInit(i, NULL);

    OSG::Node::create();

    if((argc > 2) && (OSG::stringcmp(argv[2], "pushNames") == 0))
    {    
        OSG::SceneFileHandler::the().setOptions("wrl", "pushNames=true");
    }
    
    pRoot = OSG::SceneFileHandler::the().read(argv[1]);

    std::cerr << "Tree : " << std::endl;

    if(pRoot == OSG::NullFC)
    {
        std::cerr << "\t Empty" << std::endl;
    }
    else
    {
        pRoot->dump();
    }

//    char *szFilename = "stirnwand.wrl";

    OSG::osgExit();

    return 0;
}

OSG::NodePtr makePolygon(double pntData[][3], int numPoints) {

  OSG::GeometryPtr geoPtr  = OSG::Geometry::create();
  OSG::NodePtr     nodePtr = OSG::Node::create();

  GeoPositions3fPtr    pnts    = GeoPositions3f::create();
  GeoNormals3fPtr      norms   = GeoNormals3f::create();
  GeoTexCoords2fPtr    tex     = GeoTexCoords2f::create();
  GeoIndicesUI32Ptr    indices = GeoIndicesUI32::create();   
  GeoPLengthsUI32Ptr   lens    = GeoPLengthsUI32::create();  
  GeoPTypesUI8Ptr      types   = GeoPTypesUI8::create();     

  //Set up the properties according to the geometry defined above
  beginEditCP(pnts);
  beginEditCP(norms);
  
  for(int i = 0; i < numPoints; i++) 
    {
      pnts->push_back(Pnt3f(pntData[i][0],
                            pntData[i][1], 
                            pntData[i][2]));

      indices->push_back(2*i);

      norms->push_back(Vec3f(0.0, 0.0, pntData[i][2]));
      indices->push_back(2*i + 1);
    }

  endEditCP(pnts);
  endEditCP(norms);

  beginEditCP(types);
  beginEditCP(lens);
  types->push_back(GL_POLYGON);
  lens->push_back(numPoints);
  endEditCP(types);
  endEditCP(lens);

  beginEditCP(geoPtr);
  
  geoPtr->setMaterial(getDefaultMaterial());
  geoPtr->setPositions(pnts);
  geoPtr->setNormals(norms);
  geoPtr->setIndices(indices);
  
  geoPtr->editMFIndexMapping()->push_back(Geometry::MapPosition | 
                                          Geometry::MapNormal);
  
  geoPtr->setTypes(types);
  geoPtr->setLengths(lens);
  
  endEditCP(geoPtr);

  nodePtr->setCore(geoPtr);
  return nodePtr;
}

void testObj::setActive( osg::NodePtr parent, bool active )
{
	if ( _isActive && ! active )
	{
		osg::addRefCP( node );
		parent->subChild( node );
	}
	else if ( ! _isActive && active )
 		parent->addChild( node );
	_isActive = active;
}

void testNode(void)
{
#if 0
    OSG::SFNodePtr sfNode;
    OSG::MFNodePtr mfNode;

    OSG::NodePtr pNode = OSG::Node::create();

    sfNode.setValue(pNode);
    mfNode.push_back(pNode);

/*
    fprintf(stderr, "%p %p %p | %d %d\n", 
            pNode, 
            sfNode.getValue(), 
            mfNode[0],
            OSG::Node::VolumeFieldId,
            OSG::Node::TravMaskFieldId);
 */

    OSG::NodePtr pNode1 = OSG::Node::create();

    sfNode.setValue(pNode1);
    mfNode.resize(2);
    mfNode.replace(1, pNode1);

    const OSG::Field *pF1 = pNode->getSFVolume();
          OSG::Field *pF2 = pNode->editSFVolume();

    OSG::GetFieldHandlePtr  pRF1 = pNode->getField("volume");
    OSG::EditFieldHandlePtr pRF2 = pNode->editField("volume");

    fprintf(stderr, "#### Field %p %p | %p %p\n", 
            pF1, 
            pF2, 
            pRF1.get(), 
            pRF2.get());

//    fprintf(stderr, "%p %p %p\n", pNode1, sfNode.getValue(), mfNode[1]);

    const OSG::SFNodePtr constSFNode;

//    fprintf(stderr, "%p %p\n", pNode1, constSFNode.getValue());

    OSG::FieldContainerPtr pNodeClone = deepClone(pNode);

    OSG::FieldContainerPtr pFC = 
        OSG::FieldContainerFactory::the()->createContainer("Billboard");

    fprintf(stderr, "### FOO %p\n", getCPtr(pFC));

#endif
}

void addWithHull( osg::NodePtr	testObj )
{
	testGeom = osg::GeometryPtr::dcast( testObj->getCore() );
	testHull = testGeom;
	testHullObj = testHull.getGeomNode();

	testHull.print();

	// set material
	osg::SimpleMaterialPtr mat = osg::SimpleMaterial::create();
    	mat->setDiffuse( osg::Color3f( 1.0,0.7,1.0 ) );
    	mat->setAmbient( osg::Color3f( 0.2,0.2,0.2 ) );
    	mat->setSpecular( osg::Color3f( 1,1,1 ) );
    	mat->setShininess( 20 );

	testGeom->setMaterial( mat );
	osg::GeometryPtr::dcast(testHullObj->getCore())->setMaterial( mat );

	// add to scene graph
	beginEditCP(root);

	root->addChild( testObj );
	root->addChild( testHullObj );

	endEditCP(root);
}

Transform::Transform(OSG::NodePtr node) : Group(node)
{
    _transform = OSG::cast_dynamic<OSG::TransformPtr>(node->getCore());
   
    // OSG::beginEditCP(_node);
    _node->setCore(_transform);
    // OSG::endEditCP(_node);
}

Group::Group(OSG::NodePtr node) : NodeBase(node)
{
    _group = OSG::cast_dynamic<OSG::GroupPtr>(node->getCore());
   
    // OSG::beginEditCP(_node);
    _node->setCore(_group);
    // OSG::endEditCP(_node);
}

NodeBase NodeIterator::next(void)
{
    while(!_stack.empty())
    {
        OSG::NodePtr act = _stack.back();

        _stack.pop_back();

        for(OSG::UInt32 i = 0; i < act->getNChildren(); ++i)
            _stack.push_back(act->getChild(i));

        if(act->getCore()->getType().isDerivedFrom(*_type))
        {
            return NodeBase(act);
        }    
    }
   
    PyErr_SetString(PyExc_StopIteration, "Out of Nodes");   
    boost::python::throw_error_already_set();
}

void InventorLoader::checkForRedundancy( osg::NodePtr OSGGroup )
{
  return;
  
    // TODO: Check the type of the node and return, if it's not a node
    // that should be discarded (discardable: group, not discardable: geometry)

    // If the group node has no children, then let's kick it !
    if( OSGGroup->getNChildren() == 0 )
    {
        if(OSGGroup->getParent() != NullFC)
        {
            OSGGroup->getParent()->subChild(OSGGroup);
        }
        else
        {
            subRefCP(OSGGroup);
        }
    }
    // If there's only one child, then add it to the parent of the group,
    // copy the name and remove the group
    else if ( OSGGroup->getNChildren() == 1 )
    {
        // Get parent and child
        osg::NodePtr _Child = OSGGroup->getChild(0);
        osg::NodePtr _Parent = OSGGroup->getParent();

        // Copy the name
        const char* _Name = getName(OSGGroup);
        if( _Name )
            setName( _Child, _Name );

        // Add the child to the parent
        _Parent->addChild( _Child );

        // Remove the group node
        _Parent->subChild( OSGGroup );
    }
}

NodePtr createScoreBoards()
{
	GeometryPtr geo;
	NodePtr bg;
	SimpleMaterialPtr m;
	ScoreBoard1 = new TextStuff() ;
	ScoreBoard2 = new TextStuff() ;

	// First get the global group node
    OSG::NodePtr scoreBoardsNodePtr = OSG::Node::create();
    scoreBoardsNodePtr->setCore(OSG::Group::create());

    // Setup text 1
    ScoreBoard1->initialize();
    ScoreBoard1->updateFace();
    ScoreBoard1->updateScore(0,0);
    // Setup text 2
    ScoreBoard2->initialize();
    ScoreBoard2->updateFace();
    ScoreBoard2->updateScore(0,0);

	////////// 1 /////////
	// make its transform
	TransformPtr trans1;
    NodePtr trans_node1 = makeCoredNode<Transform>(&trans1);
    beginEditCP(trans1);
		trans1->getMatrix().setTransform(Vec3f(0,4,-10.5),Quaternion( Vec3f(0,1,0),deg2rad(0)));
    endEditCP(trans1);

	// make geometry
	bg = makePlane(9.3, 1, 8,2);
	 m= SimpleMaterial::create();
    beginEditCP(m);
    {		
        m->setAmbient      (Color3f(0,0,0));
        m->setDiffuse      (Color3f(0.0,0.0,0.0));
    }
    endEditCP  (m);  
	geo = GeometryPtr::dcast(bg->getCore());  
    beginEditCP(geo);
		geo->setMaterial(m);
    beginEditCP(geo);

	beginEditCP(bg);
	bg->addChild(ScoreBoard1->mRootNode);
	endEditCP(bg);

	beginEditCP(trans_node1);
		trans_node1->addChild(bg);
	endEditCP(trans_node1);

	////////// 2 /////////
	// make its transform
	TransformPtr trans2;
    NodePtr trans_node2 = makeCoredNode<Transform>(&trans2);
    beginEditCP(trans2);
		trans2->getMatrix().setTransform(Vec3f(0,4,10.5),Quaternion( Vec3f(0,1,0),deg2rad(180)));
    endEditCP(trans2);

	// make geometry
	bg = makePlane(9.3, 1, 8,2);
	m = SimpleMaterial::create();
    beginEditCP(m);
    {		
        m->setAmbient      (Color3f(0,0,0));
        m->setDiffuse      (Color3f(0.0,0.0,0.0));
    }
    endEditCP  (m);  
	geo = GeometryPtr::dcast(bg->getCore());  
    beginEditCP(geo);
		geo->setMaterial(m);
    beginEditCP(geo);

	beginEditCP(bg);
	bg->addChild(ScoreBoard2->mRootNode);
	endEditCP(bg);

	beginEditCP(trans_node2);
		trans_node2->addChild(bg);
	endEditCP(trans_node2);


	beginEditCP(scoreBoardsNodePtr);
		scoreBoardsNodePtr->addChild(trans_node1);
		scoreBoardsNodePtr->addChild(trans_node2);
	endEditCP(scoreBoardsNodePtr);
  

    return scoreBoardsNodePtr;
}

//.........这里部分代码省略.........

		file << patt_trans[0][0] << " " << patt_trans[0][1] << " " << patt_trans[0][2] << " " << patt_trans[0][3] << " "<<endl;
		file << patt_trans[1][0] << " " << patt_trans[1][1] << " " << patt_trans[1][2] << " " << patt_trans[1][3] << " "<<endl;
		file << patt_trans[2][0] << " " << patt_trans[2][1] << " " << patt_trans[2][2] << " " << patt_trans[2][3] << " "<<endl;

		//file << patt_center[0] << " " << patt_center[1] <<endl;
		//cout << "patt width: " << patt_width <<endl;


		file << marker_info[k].pos[0] << " " << marker_info[k].pos[1] <<endl;

		cout << "p1: " << marker_info[k].vertex[0][0] << " " << marker_info[k].vertex[0][1]<< endl;
		cout << "p2: " << marker_info[k].vertex[1][0] << " " << marker_info[k].vertex[1][1]<< endl;
		cout << "p3: " << marker_info[k].vertex[2][0] << " " << marker_info[k].vertex[2][1]<< endl;
		cout << "p4: " << marker_info[k].vertex[3][0] << " " << marker_info[k].vertex[3][1]<< endl;

		cv::line(newAR,cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),CV_RGB(255,0,0));
		cv::line(newAR,cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),CV_RGB(255,0,0));
		cv::line(newAR,cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),CV_RGB(255,0,0));
		cv::line(newAR,cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),CV_RGB(255,0,0));

		cv::line(newAR,cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),CV_RGB(255,0,0));
		cv::line(newAR,cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),CV_RGB(255,0,0));

		cv::line(RGB,cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),CV_RGB(255,0,0));
		cv::line(RGB,cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),CV_RGB(255,0,0));
		cv::line(RGB,cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),CV_RGB(255,0,0));
		cv::line(RGB,cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),CV_RGB(255,0,0));

		cv::line(RGB,cv::Point(marker_info[k].vertex[0][0],marker_info[k].vertex[0][1]),cv::Point(marker_info[k].vertex[2][0],marker_info[k].vertex[2][1]),CV_RGB(255,0,0));
		cv::line(RGB,cv::Point(marker_info[k].vertex[1][0],marker_info[k].vertex[1][1]),cv::Point(marker_info[k].vertex[3][0],marker_info[k].vertex[3][1]),CV_RGB(255,0,0));

		cv::waitKey(1);
	    }
	stringstream stream2;
	stream2 << "pics/new/";
	stream2 << u;
	stream2 << ".bmp";
	//cv::imwrite(stream2.str().c_str(),RGB);

	file<< "##"<<endl;
	cv::imshow("looky looky",RGB);
	cv::waitKey(1);
    }
    file.close();

*/
    // AR _ENDE_ !!
    //}


  //  QCoreApplication a(argc, argv);

	OSG::osgInit(argc,argv);
	cout << "argc " << argc <<endl;
	for(int ar(0);ar<argc;++ar)
		cout << argv[ar] << " ";
	cout << endl;
	int winid = setupGLUT(&argc,argv);
	//GLUTWindowPtr gwin = GLUTWindow::create();
	//gwin->setGlutId(winid);
	//gwin->init();


	OSG::NodePtr scene = SceneFileHandler::the().read("data/test__1.obj");
	//OSG::NodePtr scene = SceneFileHandler::the().read("data/test3_4.obj");
	//GroupPtr scene = GroupPtr::dcast(scene);


	cout << "type: " << scene.getCore()->getTypeName()<< endl;

	cout << "children in scene: " << scene->getNChildren()<<endl;

		GeometryPtr geo = GeometryPtr::dcast(scene->getCore());

		GeoPTypesPtr type = GeoPTypesUI8::create();
		type->addValue(GL_LINE);

		LineIterator lit;
		int lines(0);
		TEST = geo;
		for(lit = geo->beginLines();lit != geo->endLines();++lit){
			lines++;
		}

		cout << "lines: " << lines <<endl;
		SimpleMaterialPtr mat = SimpleMaterial::create();
		geo->setMaterial(mat);

	// Create and setup our little friend - the SSM
	mgr = new SimpleSceneManager;
	//mgr->setWindow(gwin);
	//mgr->setRoot(scene);
	//mgr->showAll();
	//glutCreateWindow("test");

    glutMainLoop();

    return 0;
}

osg::NodePtr InventorLoader::traverseGraph( SoNode* OIVNode,
                                            osg::NodePtr OSGNode )
{
    ////////////////////////////////////////////////////////////////////////////
  FDEBUG(("   InventorLoader::traverseGraph( %x )\n",
                          OIVNode));
    ////////////////////////////////////////////////////////////////////////////


    /////////////////
    // Material node
    /////////////////

    if( OIVNode->isOfType( SoMaterial::getClassTypeId() ) )
    {
        // Convert current material
        osg::SimpleMaterialPtr _Material;
        _Material = convertMaterial( ( SoMaterial* ) OIVNode );

        if( mMergeMaterial )
        {
            // Check if that material was already encountered
            TMaterialSet::iterator _Iter;
            for(_Iter = mMaterialSet.begin();
                _Iter != mMaterialSet.end();
                ++_Iter )
            {
                if( compareMaterial( *_Iter, _Material, mMergeTolerance ) )
                    break;
            }

            if( _Iter != mMaterialSet.end() )
            {
                mCurrentState.Material = *_Iter;

                // Delete the converted material from above as it isn't used.
                subRefCP( _Material );
            }
            else
            {
                mMaterialSet.insert( _Material );
                mCurrentState.Material = _Material;
            }
        }
        else
        {
            mCurrentState.Material = _Material;
        }

        // Return the old OSG node as the current OSG node
        return OSGNode;
    }


    ///////////////////
    // Coordinate node
    ///////////////////

    if( OIVNode->isOfType( SoCoordinate3::getClassTypeId() ) )
    {
        // Save current coordinates
        mCurrentState.Positions = convertCoordinates((SoCoordinate3*)OIVNode);

        // Return the old OSG node as the current OSG node
        return OSGNode;
    }


    //////////////////////
    // Normalbinding node
    //////////////////////

    if( OIVNode->isOfType( SoNormalBinding::getClassTypeId() ) )
    {
        // Save current normalbinding
        SoNormalBinding* _Binding = ( SoNormalBinding* ) OIVNode;
        mCurrentState.NormalBinding = _Binding->value.getValue();

        // Return the old OSG node as the current OSG node
        return OSGNode;
    }


    ///////////////
    // Normal node
    ///////////////

    if( OIVNode->isOfType( SoNormal::getClassTypeId() ) )
    {
        // Save current normals
        mCurrentState.Normals = convertNormals( ( SoNormal* ) OIVNode );

        // Return the old OSG node as the current OSG node
        return OSGNode;
    }


    ///////////////////////
    // Transformation node
    ///////////////////////
//.........这里部分代码省略.........

void testRefCount(void)
{
#if 0
    OSG::NodePtr pNode = OSG::Node::create();

    OSG::NodePtr pNode1 = OSG::Node::create();

    fprintf(stderr, "1\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif

    pNode->addChild(pNode1);

    fprintf(stderr, "2\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif

    fprintf(stderr, "3\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif

    applyToAspect(1, false);
    applyToAspect(2);

    fprintf(stderr, "4\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif
    
    fprintf(stderr, "5\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif

    applyToAspect(1, false);

    fprintf(stderr, "6\n");

//XX
#if 0
    pNode.dump();
    pNode1.dump();
#endif

    applyToAspect(2);

    fprintf(stderr, "7\n");
#endif
}

int main( int argc, char *argv[] )
{

	// OSG init
	osg::osgLog().setLogLevel(osg::LOG_WARNING);
	osg::osgInit(argc, argv);

	// parse command line options
	parsecommandline( argc, argv );

	// disable display lists
	osg::FieldContainerPtr pProto= osg::Geometry::getClassType().getPrototype();
	osg::GeometryPtr pGeoProto = osg::GeometryPtr::dcast(pProto);
    if ( pGeoProto != osg::NullFC )
        pGeoProto->setDlistCache(false);

	// create the graph
	osg::NodePtr node;

	// root
	root = osg::Node::create();
	beginEditCP(root);
	root->setCore( osg::Group::create() );

	// beacon for camera and light
	osg::NodePtr beacon;
	beacon = osg::Node::create();
	beginEditCP(beacon);
	beacon->setCore( osg::Group::create() );
	endEditCP(beacon);

	// light
	light_node = osg::Node::create();
	osg::DirectionalLightPtr light = osg::DirectionalLight::create();
	beginEditCP( light_node );
	light_node->setCore( light );
	root->addChild( light_node );
	beginEditCP(light);
	light->setAmbient( .3, .3, .3, 1 );
	light->setDiffuse( 1, 1, 1, 1 );
	light->setDirection(0,0,1);
	light->setBeacon( beacon );
	endEditCP(light);

	// transformation, parent of beacon
	node = osg::Node::create();
	cam_trans = osg::Transform::create();
	beginEditCP(node);
	node->setCore( cam_trans );
	node->addChild( beacon );
	endEditCP(node);
	root->addChild( node );

	// Camera
	osg::PerspectiveCameraPtr cam = osg::PerspectiveCamera::create();
	cam->setBeacon( beacon );
	cam->setFov( 50 );
	cam->setNear( 0.1 );
	cam->setFar( 10000 );

	// Background
	osg::SolidBackgroundPtr background = osg::SolidBackground::create();
	if ( White_background )
	{
		beginEditCP( background );
		background->setColor(osg::Color3f(1,1,1));
		endEditCP( background );
	}

	// Viewport
	osg::ViewportPtr vp = osg::Viewport::create();
	vp->setCamera( cam );
	vp->setBackground( background );
	vp->setRoot( root );
	vp->setSize( 0,0, 1,1 );

	if ( With_window )
	{
		// GLUT init
		glutInitWindowSize( 400, 400 );		// before glutInit so user can
		glutInitWindowPosition( 100, 100 );	// override with comannd line args
		glutInit(&argc, argv);
		glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
		int winid = glutCreateWindow("Collision Benchmark");
		glutKeyboardFunc(key);
		glutVisibilityFunc(vis);
		glutReshapeFunc(reshape);
		glutDisplayFunc(display);
		glutMouseFunc(mouse);
		glutMotionFunc(motion);

		glutIdleFunc(display);

		glEnable( GL_DEPTH_TEST );
		glEnable( GL_LIGHTING );
		glEnable( GL_LIGHT0 );
		glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, 1);

		// Window
		osg::GLUTWindowPtr gwin;
//.........这里部分代码省略.........