第二天(七）osg::Object* readObjectFile_const std::string& filename_const ReaderWriter::Options* options

目前流程是:

osgViewer::viewBase:: frame()

{

viewerInit();[

                          //创建帧事件，并将漫游器与事件和视口相关联

                            ->   osgViewer::Viewer::ViewerInit()

                           ->  osgViewer::View::Init();

                          ->(1)osgGA::EventQueue::createEvent();

                            (2)osgGA::MatrixManipulator::Init();

                            ->(2.1)各种漫游器::init()

                 ]

isRealized()；[

                                    //获取图形上下文数组。再遍历上下文数组，只要有一个准备好就Ok

                                  ->   osgViewer::Viewer::isRealized()；

                                 ->(1)osgViewer::Viewer::getContexts().

                                          ->(1.1)osg::camera::getGraphicsContext()

                                          ->(1.2)osg::View::getNumSlaves()

                                         ->(1.3)osg::View::getSlave()

                                         ->(1.4)LessGraphicsContext()->osg::GraphicContext::getTraits()

                                ->(2)osg::GraphicContext::isRealized()

                                        ->(2.1)->（1）

                                       ->(2.2)osg::GraphicsContext::isRealized()

                                                ->osg::GraphicsContext::isRealizedImplementation()

                                               ->(2.2.1)osgViewer::GraphicsWindow::isRealizedImplementation()

                                                             ->(2.2.1.1)osgViewer:: GraphicsWindowWin32 ::isRealizedImplementation()

                                                             ->(2.2.1.2) osgViewer::GraphicsWindowEmbedded ::isRealizedImplementation()

                                              ->(2.2.2)osgViewer::PixelBufferWin32::isRealizedImplementation()

                               -

 

                    ]

realize(); [

                    //建立视口和相关的线程

                     ->osgViewer::Viewer::realize()

                     ->(1) osgViewer::Viewer::setCameraWithFocus()

                     ->(2)osgViewer::Viewer::getContexts()

                    ->（3）osgViewer::Viewer::readConfiguration(）

                          ->(3.1)osgDB::readObjectFile(const std::string& filename)

                                 ->(3.1.1)osg::Object* readObjectFile(const std::string& filename,const ReaderWriter::Options* options);

                          ->(3.2)osgViewer::Viewer::take()

                    ->(4)待续

                ]

advance(simulationTime);

eventTraversal();

updateTraversal();

renderingTraversals();

}

 

转眼十几天过去了，还没更新，还是太心急了，不要急，一不跳槽，二没开除，完成当天任务即可。快就是慢，慢就是快。

 

继续看

osg::Object* readObjectFile(const std::string& filename,const ReaderWriter::Options* options);

 

代码是：

 

inline osg::Object * readObjectFile_lf(const std::string& fileName)
{
    return readObjectFile(fileName, Registry::instance()->getOptions());
}

分别用到了

osg::Object* readObjectFile(const std::string& filename,const ReaderWriter::Options* options);

osgDB::Registry* osgDB::Registry::instance(bool erase);

  ReaderWriter::Options* osgDB::getOptions();

 

好，就到这里，短小精悍。

目前流程是:

osgViewer::viewBase:: frame()

{

viewerInit();[

                          //创建帧事件，并将漫游器与事件和视口相关联

                            ->   osgViewer::Viewer::ViewerInit()

                           ->  osgViewer::View::Init();

                          ->(1)osgGA::EventQueue::createEvent();

                            (2)osgGA::MatrixManipulator::Init();

                            ->(2.1)各种漫游器::init()

                 ]

isRealized()；[

                                    //获取图形上下文数组。再遍历上下文数组，只要有一个准备好就Ok

                                  ->   osgViewer::Viewer::isRealized()；

                                 ->(1)osgViewer::Viewer::getContexts().

                                          ->(1.1)osg::camera::getGraphicsContext()

                                          ->(1.2)osg::View::getNumSlaves()

                                         ->(1.3)osg::View::getSlave()

                                         ->(1.4)LessGraphicsContext()->osg::GraphicContext::getTraits()

                                ->(2)osg::GraphicContext::isRealized()

                                        ->(2.1)->（1）

                                       ->(2.2)osg::GraphicsContext::isRealized()

                                                ->osg::GraphicsContext::isRealizedImplementation()

                                               ->(2.2.1)osgViewer::GraphicsWindow::isRealizedImplementation()

                                                             ->(2.2.1.1)osgViewer:: GraphicsWindowWin32 ::isRealizedImplementation()

                                                             ->(2.2.1.2) osgViewer::GraphicsWindowEmbedded ::isRealizedImplementation()

                                              ->(2.2.2)osgViewer::PixelBufferWin32::isRealizedImplementation()

                               -

 

                    ]

realize(); [

                    //建立视口和相关的线程

                     ->osgViewer::Viewer::realize()

                     ->(1) osgViewer::Viewer::setCameraWithFocus()

                     ->(2)osgViewer::Viewer::getContexts()

                    ->（3）osgViewer::Viewer::readConfiguration(）

                          ->(3.1)osgDB::readObjectFile(const std::string& filename)

                                             ->(3.1.1)osg::Object* readObjectFile(const std::string& filename,const ReaderWriter::Options* options);

                                              ->(3.1.2)osgDB::Registry* osgDB::Registry::instance(bool erase);

                                              ->(3.1.3)ReaderWriter::Options* osgDB::getOptions();

                          ->(3.2)osgViewer::Viewer::take()

                    ->(4)待续

                ]

advance(simulationTime);

eventTraversal();

updateTraversal();

renderingTraversals();

}