本文整理汇总了C++中TileNode::isValid方法的典型用法代码示例。如果您正苦于以下问题：C++ TileNode::isValid方法的具体用法？C++ TileNode::isValid怎么用？C++ TileNode::isValid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类TileNode的用法示例。
在下文中一共展示了TileNode::isValid方法的1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: addChild
// The osgDB::DatabasePager will call this method when merging a new child
// into the scene graph.
bool
TilePagedLOD::addChild(osg::Node* node)
{
// First check whether this is a new TileGroup (a group that contains a TileNode
// and children paged LODs). If so, add it normally and inform our parent.
TileGroup* subtilegroup = dynamic_cast<TileGroup*>(node);
if ( subtilegroup )
{
TileNode* subtile = subtilegroup->getTileNode();
_isUpsampled = !subtile->getTileModel()->hasRealData();
_live->add( subtile );
return osg::PagedLOD::addChild( node );
}
// If that fails, check whether this is a simple TileNode. This means that
// this is a leaf node in the graph (no children), or it's a replacement
// tile for our existing tileNode, or possibly that it has no data at all
// (and we need to create an upsampled child to complete the required set of
// four).
TileNode* subtile = dynamic_cast<TileNode*>(node);
if ( subtile )
{
if ( subtile->getTileModel()->getMapRevision() < _live->getMapRevision() )
{
//OE_NOTICE << LC << "Tile " << subtile->getKey().str() << " received data but it's already out of date...requeuing"
// << std::endl;
return false;
}
// If it's a legit tile, add it normally and inform our parent.
// TODO: "invalid" tiles are deprecated. Remove this.
else
if ( subtile->isValid() )
{
if ( _children.size() == 0 )
{
_isUpsampled = !subtile->getTileModel()->hasRealData();
// The initial valid tile node we've been waiting for. Insert it.
_live->add( subtile );
return osg::PagedLOD::addChild( node );
}
else
{
// A replacement tile. Replace the tile node we have with this
// new version and update the registry.
_isUpsampled = !subtile->getTileModel()->hasRealData();
//if ( _isUpsampled )
// OE_NOTICE << LC << "Replaced UPSAMPLED leaf at " << _prefix << std::endl;
if ( dynamic_cast<TileGroup*>(_children[0].get()) )
{
subtile->setCullCallback( 0L );
static_cast<TileGroup*>(_children[0].get())->setTileNode( subtile );
}
else // TileNode
{
this->setChild(0, subtile);
}
// remove the tile-replacement filename.
_rangeList.resize( 1 );
_perRangeDataList.resize( 1 );
// update the registry. don't need to remove the old entry since add() will
// replace the existing entry (they have the same key)
_live->add( subtile );
return true;
}
}
}
// Getting here means the Tile dies somewhere in the pager while the pager was
// trying to add it. From what I can tell, this is normal and just happens sometimes
if ( !node )
{
OE_DEBUG << LC << "TilePagedLOD: got an addChild(NULL) on " << _prefix << std::endl;
_isCanceled = true;
}
return false;
}