C++ (Cpp) Pointer::GetVisibility示例

/*!
\brief PrepareMapperQueue iterates the datatree

PrepareMapperQueue iterates the datatree in order to find mappers which shall be rendered. Also, it sortes the mappers
wrt to their layer.
*/
void mitk::VtkPropRenderer::PrepareMapperQueue()
{
  // variable for counting LOD-enabled mappers
  m_NumberOfVisibleLODEnabledMappers = 0;

  // Do we have to update the mappers ?
  if (m_LastUpdateTime < GetMTime() || m_LastUpdateTime < this->GetCurrentWorldPlaneGeometry()->GetMTime())
  {
    Update();
  }
  else if (m_MapperID >= 1 && m_MapperID < 6)
    Update();

  // remove all text properties before mappers will add new ones
  m_TextRenderer->RemoveAllViewProps();

  for (unsigned int i = 0; i < m_TextCollection.size(); i++)
  {
    m_TextCollection[i]->Delete();
  }
  m_TextCollection.clear();

  // clear priority_queue
  m_MappersMap.clear();

  int mapperNo = 0;

  // DataStorage
  if (m_DataStorage.IsNull())
    return;

  DataStorage::SetOfObjects::ConstPointer allObjects = m_DataStorage->GetAll();

  for (DataStorage::SetOfObjects::ConstIterator it = allObjects->Begin(); it != allObjects->End(); ++it)
  {
    const DataNode::Pointer node = it->Value();
    if (node.IsNull())
      continue;
    const mitk::Mapper::Pointer mapper = node->GetMapper(m_MapperID);

    if (mapper.IsNull())
      continue;

    bool visible = true;
    node->GetVisibility(visible, this, "visible");

    // The information about LOD-enabled mappers is required by RenderingManager
    if (mapper->IsLODEnabled(this) && visible)
    {
      ++m_NumberOfVisibleLODEnabledMappers;
    }
    // mapper without a layer property get layer number 1
    int layer = 1;
    node->GetIntProperty("layer", layer, this);
    int nr = (layer << 16) + mapperNo;
    m_MappersMap.insert(std::pair<int, Mapper *>(nr, mapper));
    mapperNo++;
  }
}