能不能从map中进行要素的操作？

liaowei5566

那我一个map中的一些矢量图层。能获取到modelLayer但是看例子都是这样来获取操作的    OGRFeatureOptions featureOpt;
    featureOpt.url() = filename;
    featureOpt.openWrite() = write;

    osg::ref_ptr< FeatureSource > features = FeatureSourceFactory::create( featureOpt );
只能这样弄要素图层了嘛？》、

modelLayer中的

        /**
         * Gets the initialization options for this layer.
         */
        const ModelLayerOptions& getModelLayerOptions() const { return _initOptions; }

        /**
         * Access the underlying model source.
         */
        ModelSource* getModelSource() const { return _modelSource.get(); }

怎么才能跟

osgEarth::Features::FeatureSourceFactory::create();

关联上？

        osgEarth::ModelLayerOptions pModelLayerOptions= pModelLayer->getModelLayerOptions();
       
        //抽象类
        osg::ref_ptr<osgEarth::Features::FeatureSource> pFeatureSource= osgEarth::Features::FeatureSourceFactory::create(pModelLayerOptions);

pFeatureSource = NULL；能不能从着开始搞起？

liaowei5566

我解决了。        osgEarth::ModelLayerOptions _ModelLayerOptions= pModelLayer->getModelLayerOptions();
        osgEarth::ModelSourceOptions _modelSourceOptions = _ModelLayerOptions.driver().get();
        osgEarth::Features::FeatureModelSourceOptions mf = _ModelLayerOptions.driver().get();
        /*std::string my = */mf.featureOptions().get()/*.url().get().full()*/;
        //抽象类
        //pfeatureSource = osgEarth::Features::FeatureSourceFactory::create(n_ogr);
        osg::ref_ptr<osgEarth::ModelSource> pModelSource= osgEarth::ModelSourceFactory::create(_modelSourceOptions);
        pfeatureSource = osgEarth::Features::FeatureSourceFactory::create(mf.featureOptions().get());