C++ (Cpp) MapNode::getTerrain示例

void
RadialLineOfSightNode::setMapNode( MapNode* mapNode )
{
    MapNode* oldMapNode = getMapNode();

    if ( oldMapNode != mapNode )
    {
        if ( oldMapNode )
        {
            if ( _terrainChangedCallback.valid() )
            {
                oldMapNode->getTerrain()->removeTerrainCallback( _terrainChangedCallback.get() );
            }
        }

        _mapNode = mapNode;

        if ( _mapNode.valid() && _terrainChangedCallback.valid() )
        {
            _mapNode->getTerrain()->addTerrainCallback( _terrainChangedCallback.get() );
        }

        compute( getNode() );
    }
}

示例#2

显示文件

文件： osgearth_transform.cpp 项目： clmtk4/osgearth

int
main(int argc, char** argv)
{
    osg::ArgumentParser arguments(&argc,argv);

    // help?
    if ( arguments.read("--help") )
        return usage(argv[0]);

    osgViewer::Viewer viewer(arguments);
    EarthManipulator* em = new EarthManipulator();
    viewer.setCameraManipulator( em );

    // load an earth file, and support all or our example command-line options
    // and earth file <external> tags
    osg::Node* earth = MapNodeHelper().load( arguments, &viewer );
    MapNode* mapNode = MapNode::get(earth);
    if (!mapNode)
        return usage(argv[0]);

    // load the model file into the local coordinate frame, which will be
    // +X=east, +Y=north, +Z=up.
    osg::Node* model = osgDB::readNodeFile("cessna.osgt.1,-1,1.scale");
    if ( !model )
        return usage(argv[0]);

    osg::Group* root = new osg::Group();
    root->addChild( earth );

    App app;
    app.srs = mapNode->getMapSRS();
    app.geo = new GeoTransform();
    app.geo->setTerrain( mapNode->getTerrain() );
    app.pat = new osg::PositionAttitudeTransform();
    app.pat->addChild( model );
    app.geo->addChild( app.pat );

    root->addChild( app.geo );

    viewer.setSceneData( root );
    viewer.getCamera()->setNearFarRatio(0.00002);
    viewer.getCamera()->setSmallFeatureCullingPixelSize(-1.0f);

    ui::ControlCanvas::getOrCreate(&viewer)->addControl( makeUI(app) );
    app.apply();

    em->setTetherNode( app.geo );

    osgEarth::Viewpoint vp;
    vp.setNode( app.geo );
    vp.heading()->set( -45.0, Units::DEGREES );
    vp.pitch()->set( -20.0, Units::DEGREES );
    vp.range()->set( model->getBound().radius()*10.0, Units::METERS );
    em->setViewpoint( vp );

    return viewer.run();
}

示例#3

显示文件

文件： Draggers.cpp 项目： InterAtlas-ML/osgearth

void
Dragger::setMapNode( MapNode* mapNode )
{
    MapNode* oldMapNode = getMapNode();

    if ( oldMapNode != mapNode )
    {
        if ( oldMapNode && _autoClampCallback.valid() )
        {
            oldMapNode->getTerrain()->removeTerrainCallback( _autoClampCallback.get() );
        }

        _mapNode = mapNode;

        if ( _mapNode.valid() && _autoClampCallback.valid() )
        {
            _mapNode->getTerrain()->addTerrainCallback( _autoClampCallback.get() );
        }
    }
}