source: experimental/TerrainTest/ModificationVisitor.cpp @ 256

#include "ModificationVisitor.h"

using namespace osgTerrain;

ModificationVisitor::ModificationVisitor(std::string extensionToSet) : _extensionToSet(extensionToSet)
{
        setTraversalMode( osg::NodeVisitor::TRAVERSE_ALL_CHILDREN );
}

void ModificationVisitor::apply( osg::Node& node )
{
        //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Node found: " << node.className() << std::endl;

        if(std::string(node.className())=="TerrainTile")
        {
                //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: Tile found" << std::endl;
                osgTerrain::TerrainTile* tile = dynamic_cast<osgTerrain::TerrainTile*>(&node);
                if(tile)
                        modifyTile(tile);
        }

        traverse( node );
}

void ModificationVisitor::apply( osg::PagedLOD& pNode )
{
        //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD found: " << pNode.className() << std::endl;

        for( unsigned int i=0;i<pNode.getNumFileNames();i++)
        {
                //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child #" << i << std::endl;
                if(pNode.getFileName(i)!="")
                {
                        //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name pre: " << pNode.getFileName(i) << std::endl;
                        pNode.setFileName(i, pNode.getFileName(i)+_extensionToSet );
                        //OSG_NOTIFY( osg::ALWAYS ) << "ModVisitor: pagedLOD Child Name post: " << newFileName << std::endl;
                }
        }

        traverse( pNode );
}

void ModificationVisitor::modifyTile(osgTerrain::TerrainTile* tile)
{
        OSG_NOTIFY( osg::ALWAYS ) << "ModificationVisitor::modifyTile()" << std::endl;
        OpenThreads::Thread::microSleep( 500000 );

        HeightFieldLayer* hfl = dynamic_cast<HeightFieldLayer*>(tile->getElevationLayer());
        osg::HeightField* h = hfl->getHeightField();
        OSG_NOTIFY( osg::ALWAYS ) << "Origin: " << h->getOrigin()[0] <<" | "<<h->getOrigin()[1]<<" | "<<h->getOrigin()[2] << std::endl;
        OSG_NOTIFY( osg::ALWAYS ) << "X-Intervall: " << h->getXInterval() << std::endl;
        OSG_NOTIFY( osg::ALWAYS ) << "Y-Intervall: " << h->getYInterval() << std::endl;


        // Determine if tile touches ROI

        // calculate colum start/end and row start/end of affected vertices

        // modify height value of affected vertices
}