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C++ TileSource::getPixelsPerTile方法代码示例

本文整理汇总了C++中TileSource::getPixelsPerTile方法的典型用法代码示例。如果您正苦于以下问题:C++ TileSource::getPixelsPerTile方法的具体用法?C++ TileSource::getPixelsPerTile怎么用?C++ TileSource::getPixelsPerTile使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TileSource的用法示例。


在下文中一共展示了TileSource::getPixelsPerTile方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: getTileSource

unsigned
TerrainLayer::getTileSize() const
{
    TileSource* ts = getTileSource();
    return ts ? ts->getPixelsPerTile() : _tileSize;
}
开发者ID:czz2012,项目名称:osgearth,代码行数:6,代码来源:TerrainLayer.cpp

示例2: if

osg::Image*
CompositeTileSource::createImage(const TileKey&    key,
                                 ProgressCallback* progress )
{
    ImageMixVector images;
    images.reserve( _options._components.size() );

    for(CompositeTileSourceOptions::ComponentVector::const_iterator i = _options._components.begin();
        i != _options._components.end();
        ++i )
    {
        if ( progress && progress->isCanceled() )
            return 0L;

        ImageInfo imageInfo;
        imageInfo.dataInExtents = false;



        TileSource* source = i->_tileSourceInstance.get();
        if ( source )
        {
            //TODO:  This duplicates code in ImageLayer::isKeyValid.  Maybe should move that to TileSource::isKeyValid instead
            int minLevel = 0;
            int maxLevel = INT_MAX;
            if (i->_imageLayerOptions->minLevel().isSet())
            {
                minLevel = i->_imageLayerOptions->minLevel().value();
            }
            else if (i->_imageLayerOptions->minResolution().isSet())
            {
                minLevel = source->getProfile()->getLevelOfDetailForHorizResolution( 
                    i->_imageLayerOptions->minResolution().value(), 
                    source->getPixelsPerTile());
            }

            if (i->_imageLayerOptions->maxLevel().isSet())
            {
                maxLevel = i->_imageLayerOptions->maxLevel().value();
            }
            else if (i->_imageLayerOptions->maxResolution().isSet())
            {
                maxLevel = source->getProfile()->getLevelOfDetailForHorizResolution( 
                    i->_imageLayerOptions->maxResolution().value(), 
                    source->getPixelsPerTile());
            }

            // check that this source is within the level bounds:
            if (minLevel > (int)key.getLevelOfDetail() ||
                maxLevel < (int)key.getLevelOfDetail() )
            {
                continue;
            }
            
                //Only try to get data if the source actually has data                
                if (source->hasDataInExtent( key.getExtent() ) )
                {
                    //We have data within these extents
                    imageInfo.dataInExtents = true;

                    if ( !source->getBlacklist()->contains( key.getTileId() ) )
                    {                        
                        osg::ref_ptr< ImageLayerPreCacheOperation > preCacheOp;
                        if ( i->_imageLayerOptions.isSet() )
                        {
                            preCacheOp = new ImageLayerPreCacheOperation();
                            preCacheOp->_processor.init( i->_imageLayerOptions.value(), _dbOptions.get(), true );                        
                        }

                        imageInfo.image = source->createImage( key, preCacheOp.get(), progress );
                        imageInfo.opacity = 1.0f;

                        //If the image is not valid and the progress was not cancelled, blacklist
                        if (!imageInfo.image.valid() && (!progress || !progress->isCanceled()))
                        {
                            //Add the tile to the blacklist
                            OE_DEBUG << LC << "Adding tile " << key.str() << " to the blacklist" << std::endl;
                            source->getBlacklist()->add( key.getTileId() );
                        }
                        imageInfo.opacity = i->_imageLayerOptions.isSet() ? i->_imageLayerOptions->opacity().value() : 1.0f;
                    }
                }
                else
                {
                    OE_DEBUG << LC << "Source has no data at " << key.str() << std::endl;
                }
        }

        //Add the ImageInfo to the list
        images.push_back( imageInfo );
    }

    unsigned numValidImages = 0;
    osg::Vec2s textureSize;
    for (unsigned int i = 0; i < images.size(); i++)
    {
        ImageInfo& info = images[i];
        if (info.image.valid())
        {
            if (numValidImages == 0)
//.........这里部分代码省略.........
开发者ID:WojtekLewandowski,项目名称:osgearth,代码行数:101,代码来源:CompositeTileSource.cpp

示例3: if

osg::Image*
CompositeTileSource::createImage( const TileKey& key, ProgressCallback* progress )
{
    ImageMixVector images;
    images.reserve( _options._components.size() );

    for(CompositeTileSourceOptions::ComponentVector::const_iterator i = _options._components.begin();
            i != _options._components.end();
            ++i )
    {
        if ( progress && progress->isCanceled() )
            return 0L;

        TileSource* source = i->_tileSourceInstance->get();
        if ( source )
        {

            //TODO:  This duplicates code in ImageLayer::isKeyValid.  Maybe should move that to TileSource::isKeyValid instead
            int minLevel = 0;
            int maxLevel = INT_MAX;
            if (i->_imageLayerOptions->minLevel().isSet())
            {
                minLevel = i->_imageLayerOptions->minLevel().value();
            }
            else if (i->_imageLayerOptions->minLevelResolution().isSet())
            {
                minLevel = source->getProfile()->getLevelOfDetailForHorizResolution( i->_imageLayerOptions->minLevelResolution().value(), source->getPixelsPerTile());
            }

            if (i->_imageLayerOptions->maxLevel().isSet())
            {
                maxLevel = i->_imageLayerOptions->maxLevel().value();
            }
            else if (i->_imageLayerOptions->maxLevelResolution().isSet())
            {
                maxLevel = source->getProfile()->getLevelOfDetailForHorizResolution( i->_imageLayerOptions->maxLevelResolution().value(), source->getPixelsPerTile());
            }




            // check that this source is within the level bounds:
            if (minLevel > key.getLevelOfDetail() ||
                    maxLevel < key.getLevelOfDetail() )
            {
                continue;
            }





            if ( !source->getBlacklist()->contains( key.getTileId() ) )
            {
                //Only try to get data if the source actually has data
                if ( source->hasData( key ) )
                {
                    osg::ref_ptr< ImageLayerPreCacheOperation > preCacheOp;
                    if ( i->_imageLayerOptions.isSet() )
                    {
                        preCacheOp = new ImageLayerPreCacheOperation();
                        preCacheOp->_processor.init( i->_imageLayerOptions.value(), true );
                    }



                    ImageOpacityPair imagePair(
                        source->createImage( key, preCacheOp.get(), progress ),
                        1.0f );

                    //If the image is not valid and the progress was not cancelled, blacklist
                    if (!imagePair.first.valid() && (!progress || !progress->isCanceled()))
                    {
                        //Add the tile to the blacklist
                        OE_DEBUG << LC << "Adding tile " << key.str() << " to the blacklist" << std::endl;
                        source->getBlacklist()->add( key.getTileId() );
                    }

                    if ( imagePair.first.valid() )
                    {
                        // check for opacity:
                        imagePair.second = i->_imageLayerOptions.isSet() ? i->_imageLayerOptions->opacity().value() : 1.0f;

                        images.push_back( imagePair );
                    }
                }
                else
                {
                    OE_DEBUG << LC << "Source has no data at " << key.str() << std::endl;
                }
            }
            else
            {
                OE_DEBUG << LC << "Tile " << key.str() << " is blacklisted, not checking" << std::endl;
            }
        }
    }

    if ( progress && progress->isCanceled() )
    {
//.........这里部分代码省略.........
开发者ID:rdelmont,项目名称:osgearth,代码行数:101,代码来源:CompositeTileSource.cpp


注:本文中的TileSource::getPixelsPerTile方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。