void
CompositeTileSource::initialize( const std::string& referenceURI, const Profile* overrideProfile )
{
    osg::ref_ptr<const Profile> profile = overrideProfile;

    for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
        i != _options._components.end();
        ++i)
    {
        TileSource* source = i->_tileSourceInstance.get();
        if ( source )
        {
            osg::ref_ptr<const Profile> localOverrideProfile = overrideProfile;

            const TileSourceOptions& opt = source->getOptions();
            if ( opt.profile().isSet() )
                localOverrideProfile = Profile::create( opt.profile().value() );

            source->initialize( referenceURI, localOverrideProfile.get() );

            if ( !profile.valid() )
            {
                // assume the profile of the first source to be the overall profile.
                profile = source->getProfile();
            }
            else if ( !profile->isEquivalentTo( source->getProfile() ) )
            {
                // if sub-sources have different profiles, print a warning because this is
                // not supported!
                OE_WARN << LC << "Components with differing profiles are not supported. " 
                    << "Visual anomalies may result." << std::endl;
            }
            
            _dynamic = _dynamic || source->isDynamic();

            // gather extents
            const DataExtentList& extents = source->getDataExtents();
            for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
            {
                getDataExtents().push_back( *j );
            }
        }
    }

    setProfile( profile.get() );

    _initialized = true;
}
Status
CompositeTileSource::initialize(const osgDB::Options* dbOptions)
{
    _dbOptions = Registry::instance()->cloneOrCreateOptions(dbOptions);

    osg::ref_ptr<const Profile> profile = getProfile();

    for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
        i != _options._components.end(); )
    {        
        if ( i->_imageLayerOptions.isSet() && !i->_layer.valid() )
        {
            // Disable the l2 cache for composite layers so that we don't get run out of memory on very large datasets.
            i->_imageLayerOptions->driver()->L2CacheSize() = 0;

            osg::ref_ptr< ImageLayer > layer = new ImageLayer(*i->_imageLayerOptions);
            layer->setReadOptions(_dbOptions.get());
            Status status = layer->open();
            if (status.isOK())
            {
                i->_layer = layer;
                _imageLayers.push_back( layer );
                OE_INFO << LC << " .. added image layer " << layer->getName() << " (" << i->_imageLayerOptions->driver()->getDriver() << ")\n";
            }
            else
            {
                OE_WARN << LC << "Could not open image layer (" << layer->getName() << ") ... " << status.message() << std::endl;
            }            
        }
        else if (i->_elevationLayerOptions.isSet() && !i->_layer.valid())
        {
            // Disable the l2 cache for composite layers so that we don't get run out of memory on very large datasets.
            i->_elevationLayerOptions->driver()->L2CacheSize() = 0;

            osg::ref_ptr< ElevationLayer > layer = new ElevationLayer(*i->_elevationLayerOptions);   
            layer->setReadOptions(_dbOptions.get());
            Status status = layer->open();
            if (status.isOK())
            {
                i->_layer = layer;
                _elevationLayers.push_back( layer.get() );                
            }
            else
            {
                OE_WARN << LC << "Could not open elevation layer (" << layer->getName() << ") ... " << status.message() << std::endl;
            }
        }

        if ( !i->_layer.valid() )
        {
            OE_WARN << LC << "A component has no valid TerrainLayer ... removing." << std::endl;
            i = _options._components.erase( i );
        }
        else
        {            
            TileSource* source = i->_layer->getTileSource();

            // If no profile is specified assume they want to use the profile of the first layer in the list.
            if (!profile.valid())
            {
                profile = source->getProfile();
            }

            _dynamic = _dynamic || source->isDynamic();
            
            // gather extents                        
            const DataExtentList& extents = source->getDataExtents();            
            for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
            {                
                // Convert the data extent to the profile that is actually used by this TileSource
                DataExtent dataExtent = *j;                
                GeoExtent ext = dataExtent.transform(profile->getSRS());
                unsigned int minLevel = 0;
                unsigned int maxLevel = profile->getEquivalentLOD( source->getProfile(), *dataExtent.maxLevel() );                                        
                dataExtent = DataExtent(ext, minLevel, maxLevel);                                
                getDataExtents().push_back( dataExtent );
            }          
        }

        ++i;
    }

    // set the new profile that was derived from the components
    setProfile( profile.get() );

    _initialized = true;
    return STATUS_OK;
}
Beispiel #3
0
void CacheSeed::seed( Map* map )
{
    if ( !map->getCache() )
    {
        OE_WARN << LC << "Warning: No cache defined; aborting." << std::endl;
        return;
    }

    std::vector<TileKey> keys;
    map->getProfile()->getRootKeys(keys);

    //Add the map's entire extent if we don't have one specified.
    if (_extents.empty())
    {
        addExtent( map->getProfile()->getExtent() );
    }

    bool hasCaches = false;
    int src_min_level = INT_MAX;
    unsigned int src_max_level = 0;

    MapFrame mapf( map, Map::TERRAIN_LAYERS, "CacheSeed::seed" );

    //Assumes the the TileSource will perform the caching for us when we call createImage
    for( ImageLayerVector::const_iterator i = mapf.imageLayers().begin(); i != mapf.imageLayers().end(); i++ )
    {
        ImageLayer* layer = i->get();
        TileSource* src   = layer->getTileSource();

        const ImageLayerOptions& opt = layer->getImageLayerOptions();

        if ( layer->isCacheOnly() )
        {
            OE_WARN << LC << "Warning: Layer \"" << layer->getName() << "\" is set to cache-only; skipping." << std::endl;
        }
        else if ( !src )
        {
            OE_WARN << "Warning: Layer \"" << layer->getName() << "\" could not create TileSource; skipping." << std::endl;
        }
        else if ( src->getCachePolicyHint() == CachePolicy::NO_CACHE )
        {
            OE_WARN << LC << "Warning: Layer \"" << layer->getName() << "\" does not support seeding; skipping." << std::endl;
        }
        else if ( !layer->getCache() )
        {
            OE_WARN << LC << "Notice: Layer \"" << layer->getName() << "\" has no cache defined; skipping." << std::endl;
        }
        else
        {
            hasCaches = true;

            if (opt.minLevel().isSet() && (int)opt.minLevel().get() < src_min_level)
                src_min_level = opt.minLevel().get();
            if (opt.maxLevel().isSet() && opt.maxLevel().get() > src_max_level)
                src_max_level = opt.maxLevel().get();
        }
    }

    for( ElevationLayerVector::const_iterator i = mapf.elevationLayers().begin(); i != mapf.elevationLayers().end(); i++ )
    {
        ElevationLayer* layer = i->get();
        TileSource*     src   = layer->getTileSource();
        const ElevationLayerOptions& opt = layer->getElevationLayerOptions();

        if ( layer->isCacheOnly() )
        {
            OE_WARN << LC << "Warning: Layer \"" << layer->getName() << "\" is set to cache-only; skipping." << std::endl;
        }
        else if (!src)
        {
            OE_WARN << "Warning: Layer \"" << layer->getName() << "\" could not create TileSource; skipping." << std::endl;
        }
        else if ( src->getCachePolicyHint() == CachePolicy::NO_CACHE )
        {
            OE_WARN << LC << "Warning: Layer \"" << layer->getName() << "\" does not support seeding; skipping." << std::endl;
        }
        else if ( !layer->getCache() )
        {
            OE_WARN << LC << "Notice: Layer \"" << layer->getName() << "\" has no cache defined; skipping." << std::endl;
        }
        else
        {
            hasCaches = true;

            if (opt.minLevel().isSet() && (int)opt.minLevel().get() < src_min_level)
                src_min_level = opt.minLevel().get();
            if (opt.maxLevel().isSet() && opt.maxLevel().get() > src_max_level)
                src_max_level = opt.maxLevel().get();
        }
    }

    if ( !hasCaches )
    {
        OE_WARN << LC << "There are either no caches defined in the map, or no sources to cache; aborting." << std::endl;
        return;
    }

    if ( src_max_level > 0 && src_max_level < _maxLevel )
    {
        _maxLevel = src_max_level;
    }

    OE_NOTICE << LC << "Maximum cache level will be " << _maxLevel << std::endl;

    osg::Timer_t startTime = osg::Timer::instance()->tick();
    //Estimate the number of tiles
    _total = 0;    

    for (unsigned int level = _minLevel; level <= _maxLevel; level++)
    {
        double coverageRatio = 0.0;

        if (_extents.empty())
        {
            unsigned int wide, high;
            map->getProfile()->getNumTiles( level, wide, high );
            _total += (wide * high);
        }
        else
        {
            for (std::vector< GeoExtent >::const_iterator itr = _extents.begin(); itr != _extents.end(); itr++)
            {
                const GeoExtent& extent = *itr;
                double boundsArea = extent.area();

                TileKey ll = map->getProfile()->createTileKey(extent.xMin(), extent.yMin(), level);
                TileKey ur = map->getProfile()->createTileKey(extent.xMax(), extent.yMax(), level);

                int tilesWide = ur.getTileX() - ll.getTileX() + 1;
                int tilesHigh = ll.getTileY() - ur.getTileY() + 1;
                int tilesAtLevel = tilesWide * tilesHigh;
                //OE_NOTICE << "Tiles at level " << level << "=" << tilesAtLevel << std::endl;

                bool hasData = false;

                for (ImageLayerVector::const_iterator itr = mapf.imageLayers().begin(); itr != mapf.imageLayers().end(); itr++)
                {
                    TileSource* src = itr->get()->getTileSource();
                    if (src)
                    {
                        if (src->hasDataAtLOD( level ))
                        {
                            //Compute the percent coverage of this dataset on the current extent
                            if (src->getDataExtents().size() > 0)
                            {
                                double cov = 0.0;
                                for (unsigned int j = 0; j < src->getDataExtents().size(); j++)
                                {
                                    GeoExtent b = src->getDataExtents()[j].transform( extent.getSRS());
                                    GeoExtent intersection = b.intersectionSameSRS( extent );
                                    if (intersection.isValid())
                                    {
                                        double coverage = intersection.area() / boundsArea;
                                        cov += coverage; //Assumes the extents aren't overlapping                            
                                    }
                                }
                                if (coverageRatio < cov) coverageRatio = cov;
                            }
                            else
                            {
                                //We have no way of knowing how much coverage we have
                                coverageRatio = 1.0;
                            }
                            hasData = true;
                            break;
                        }
                    }
                }

                for (ElevationLayerVector::const_iterator itr = mapf.elevationLayers().begin(); itr != mapf.elevationLayers().end(); itr++)
                {
                    TileSource* src = itr->get()->getTileSource();
                    if (src)
                    {
                        if (src->hasDataAtLOD( level ))
                        {
                            //Compute the percent coverage of this dataset on the current extent
                            if (src->getDataExtents().size() > 0)
                            {
                                double cov = 0.0;
                                for (unsigned int j = 0; j < src->getDataExtents().size(); j++)
                                {
                                    GeoExtent b = src->getDataExtents()[j].transform( extent.getSRS());
                                    GeoExtent intersection = b.intersectionSameSRS( extent );
                                    if (intersection.isValid())
                                    {
                                        double coverage = intersection.area() / boundsArea;
                                        cov += coverage; //Assumes the extents aren't overlapping                            
                                    }
                                }
                                if (coverageRatio < cov) coverageRatio = cov;
                            }
                            else
                            {
                                //We have no way of knowing how much coverage we have
                                coverageRatio = 1.0;
                            }
                            hasData = true;
                            break;
                        }
                    }
                }

                //Adjust the coverage ratio by a fudge factor to try to keep it from being too small,
                //tiles are either processed or not and the ratio is exact so will cover tiles partially
                //and potentially be too small
                double adjust = 4.0;
                coverageRatio = osg::clampBetween(coverageRatio * adjust, 0.0, 1.0);

                //OE_NOTICE << level <<  " CoverageRatio = " << coverageRatio << std::endl;

                if (hasData)
                {
                    _total += (int)ceil(coverageRatio * (double)tilesAtLevel );
                }
            }
        }
    }

    //Adjust the # of tiles again to be bigger than computed to avoid giving false hope
    _total *= 2;
    osg::Timer_t endTime = osg::Timer::instance()->tick();
    //OE_NOTICE << "Counted tiles in " << osg::Timer::instance()->delta_s(startTime, endTime) << " s" << std::endl;

    OE_INFO << "Processing ~" << _total << " tiles" << std::endl;

    for (unsigned int i = 0; i < keys.size(); ++i)
    {
        processKey( mapf, keys[i] );
    }

    _total = _completed;

    if ( _progress.valid()) _progress->reportProgress(_completed, _total, 0, 1, "Finished");
}
TileSource::Status
CompositeTileSource::initialize(const osgDB::Options* dbOptions)
{
    _dbOptions = Registry::instance()->cloneOrCreateOptions(dbOptions);

    osg::ref_ptr<const Profile> profile = getProfile();

    for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
        i != _options._components.end(); )
    {
        if ( i->_imageLayerOptions.isSet() )
        {
            if ( !i->_tileSourceInstance.valid() )
            {
                i->_tileSourceInstance = TileSourceFactory::create( i->_imageLayerOptions->driver().value() );
            
                if ( !i->_tileSourceInstance.valid() )
                {
                    OE_WARN << LC << "Could not find a TileSource for driver [" << i->_imageLayerOptions->driver()->getDriver() << "]" << std::endl;
                }
            }
        }

        if ( !i->_tileSourceInstance.valid() )
        {
            OE_WARN << LC << "A component has no valid TileSource ... removing." << std::endl;
            i = _options._components.erase( i );
        }
        else
        {
            TileSource* source = i->_tileSourceInstance.get();
            if ( source )
            {
                osg::ref_ptr<const Profile> localOverrideProfile = profile.get();

                const TileSourceOptions& opt = source->getOptions();
                if ( opt.profile().isSet() )
                {
                    localOverrideProfile = Profile::create( opt.profile().value() );
                    source->setProfile( localOverrideProfile.get() );
                }

                // initialize the component tile source:
                TileSource::Status compStatus = source->startup( _dbOptions.get() );

                if ( compStatus == TileSource::STATUS_OK )
                {
                    if ( !profile.valid() )
                    {
                        // assume the profile of the first source to be the overall profile.
                        profile = source->getProfile();
                    }
                    else if ( !profile->isEquivalentTo( source->getProfile() ) )
                    {
                        // if sub-sources have different profiles, print a warning because this is
                        // not supported!
                        OE_WARN << LC << "Components with differing profiles are not supported. " 
                            << "Visual anomalies may result." << std::endl;
                    }
                
                    _dynamic = _dynamic || source->isDynamic();

                    // gather extents
                    const DataExtentList& extents = source->getDataExtents();
                    for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
                    {
                        getDataExtents().push_back( *j );
                    }
                }

                else
                {
                    // if even one of the components fails to initialize, the entire
                    // composite tile source is invalid.
                    return Status::Error("At least one component is invalid");
                }
            }
        }

        ++i;
    }

    // set the new profile that was derived from the components
    setProfile( profile.get() );

    _initialized = true;
    return STATUS_OK;
}
Beispiel #5
0
void
CompositeTileSource::initialize(const osgDB::Options* dbOptions, 
                                const Profile*        overrideProfile )
{
    _dbOptions = dbOptions;
    osg::ref_ptr<const Profile> profile = overrideProfile;

    for(CompositeTileSourceOptions::ComponentVector::iterator i = _options._components.begin();
        i != _options._components.end(); )
    {
        if ( i->_imageLayerOptions.isSet() )
        {
            if ( !i->_tileSourceInstance.valid() )
            {
                i->_tileSourceInstance = TileSourceFactory::create( i->_imageLayerOptions->driver().value() );
            
                if ( !i->_tileSourceInstance.valid() )
                {
                    OE_WARN << LC << "Could not find a TileSource for driver [" << i->_imageLayerOptions->driver()->getDriver() << "]" << std::endl;
                }
            }
        }

        if ( !i->_tileSourceInstance.valid() )
        {
            OE_WARN << LC << "A component has no valid TileSource ... removing." << std::endl;
            i = _options._components.erase( i );
        }
        else
        {
            TileSource* source = i->_tileSourceInstance.get();
            if ( source )
            {
                osg::ref_ptr<const Profile> localOverrideProfile = overrideProfile;

                const TileSourceOptions& opt = source->getOptions();
                if ( opt.profile().isSet() )
                    localOverrideProfile = Profile::create( opt.profile().value() );

                source->initialize( dbOptions, localOverrideProfile.get() );

                if ( !profile.valid() )
                {
                    // assume the profile of the first source to be the overall profile.
                    profile = source->getProfile();
                }
                else if ( !profile->isEquivalentTo( source->getProfile() ) )
                {
                    // if sub-sources have different profiles, print a warning because this is
                    // not supported!
                    OE_WARN << LC << "Components with differing profiles are not supported. " 
                        << "Visual anomalies may result." << std::endl;
                }
                
                _dynamic = _dynamic || source->isDynamic();

                // gather extents
                const DataExtentList& extents = source->getDataExtents();
                for( DataExtentList::const_iterator j = extents.begin(); j != extents.end(); ++j )
                {
                    getDataExtents().push_back( *j );
                }
            }
        }

        ++i;
    }

    setProfile( profile.get() );

    _initialized = true;
}