VTK_GDCM讀取tag信息

#include <vtkDICOMTag.h>
#include <vtkDICOMTag.h>
#include <vtkDICOMTagPath.h>
#include <vtkDICOMCompiler.h>
#include <vtkDICOMDictHash.h>
int readTag()
{
    ///
    /// \brief 讀取tag信息
    ///

    vtkNew<vtkStringArray> arr;
    QString path("D:/1203518");//DICOM序列目錄
    vtkNew<vtkDICOMDirectory> ddir;
    ddir->SetDirectoryName(qUtf8Printable(path));
    ddir->Update();

    int NumberOfSeries = ddir->GetNumberOfSeries();

    if(0 == NumberOfSeries)
    {
        return 1;
    }
    //獲取文件列表
    auto stringArray = ddir->GetFileNamesForSeries(0);
    int N = stringArray->GetNumberOfValues();//切片數量

    //文件排序
    vtkNew<vtkDICOMReader> reader;
    reader->SetFileNames(stringArray);
    reader->SetMemoryRowOrderToFileNative();
    reader->SortingOn();
    reader->UpdateInformation() ;
    reader->Update();

    //獲取基本信息
    auto meta = reader->GetMetaData();

    QMap<QString, QVariant> tagsMap;
    for(auto i = meta->Begin();i != meta->End(); ++i)
    {
        auto tag = i->GetTag();
        auto val = i->GetValue();
        QString tagKey = QString("%1|%2")
                .arg(tag.GetGroup(), 4, 16, QChar('0'))
                .arg(tag.GetElement(), 4, 16, QChar('0'));
        QString tagVal = QString::fromStdString(val.AsUTF8String());
        if(tagVal.length() > 0 && tagVal.length() < 200)
        {
            tagsMap[tagKey] = tagVal;
            qDebug()<<tagKey<<tagVal;
        }

    }
    return 0;
}