view UnitTestsSources/SortedFramesTests.cpp @ 1477:5732edec7cbd

sorting frames in 3D
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 18 Jun 2020 15:48:59 +0200
parents
children fab6c6e795a3
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/**
 * Stone of Orthanc
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2020 Osimis S.A., Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#include <gtest/gtest.h>

#include <OrthancException.h>
#include <DicomFormat/DicomMap.h>

#include "../Framework/Toolbox/GeometryToolbox.h"

namespace OrthancStone
{
  class SortedFrames : public boost::noncopyable
  {
  private:
    class Instance : public boost::noncopyable
    {
    private:
      bool               hasPosition_;
      Orthanc::DicomMap  tags_;
      std::string        sopInstanceUid_;
      unsigned int       numberOfFrames_;
      Vector             normal_;
      Vector             position_;

    public:
      Instance(const Orthanc::DicomMap& tags)
      {
        tags_.Assign(tags);

        if (!tags.LookupStringValue(sopInstanceUid_, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false))
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
        }

        uint32_t tmp;
        if (tags.ParseUnsignedInteger32(tmp, Orthanc::DICOM_TAG_NUMBER_OF_FRAMES))
        {
          numberOfFrames_ = tmp;
        }
        else
        {
          numberOfFrames_ = 1;
        }

        hasPosition_ = (
          LinearAlgebra::ParseVector(position_, tags, Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT) &&
          position_.size() == 3 &&
          GeometryToolbox::ComputeNormal(normal_, tags));
      }

      const Orthanc::DicomMap& GetTags() const
      {
        return tags_;
      }

      const std::string& GetSopInstanceUid() const
      {
        return sopInstanceUid_;
      }

      unsigned int GetNumberOfFrames() const
      {
        return numberOfFrames_;
      }

      bool HasPosition() const
      {
        return hasPosition_;
      }

      const Vector& GetNormal() const
      {
        if (hasPosition_)
        {
          return normal_;
        }
        else
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
        }
      }

      const Vector& GetPosition() const
      {
        if (hasPosition_)
        {
          return position_;
        }
        else
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
        }
      }
    };

    struct Frame
    {
    private:
      const Instance&  instance_;
      unsigned int     frameIndex_;

    public:
      Frame(const Instance& instance,
            unsigned int frameIndex) :
        instance_(instance),
        frameIndex_(frameIndex)
      {
        if (frameIndex >= instance.GetNumberOfFrames())
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
        }
      }

      const Instance& GetInstance() const
      {
        return instance_;
      }

      unsigned int GetFrameIndex() const
      {
        return frameIndex_;
      }
    };

    std::string             studyInstanceUid_;
    std::string             seriesInstanceUid_;
    std::vector<Instance*>  instances_;
    std::vector<Frame>      frames_;
    bool                    sorted_;

    const Instance& GetInstance(size_t index) const
    {
      if (index >= instances_.size())
      {
        throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
      }
      else
      {
        assert(instances_[index] != NULL);
        return *instances_[index];
      }
    }

    const Frame& GetFrame(size_t index) const
    {
      if (!sorted_)
      {
        throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls,
                                        "Sort() has not been called");
      }
      if (index >= frames_.size())
      {
        throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
      }
      else
      {
        return frames_[index];
      }    
    }

  public:
    SortedFrames() :
      sorted_(true)
    {
    }
  
    ~SortedFrames()
    {
      for (size_t i = 0; i < instances_.size(); i++)
      {
        assert(instances_[i] != NULL);
        delete instances_[i];
      }
    }

    const std::string& GetStudyInstanceUid() const
    {
      return studyInstanceUid_;
    }

    const std::string& GetSeriesInstanceUid() const
    {
      return seriesInstanceUid_;
    }

    void AddInstance(const Orthanc::DicomMap& tags)
    {
      std::unique_ptr<Instance> instance(new Instance(tags));

      std::string studyInstanceUid, seriesInstanceUid;
      if (!tags.LookupStringValue(studyInstanceUid, Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, false) ||
          !tags.LookupStringValue(seriesInstanceUid, Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, false))
      {
        throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
      }
    
      if (instances_.empty())
      {
        studyInstanceUid_ = studyInstanceUid;
        seriesInstanceUid_ = seriesInstanceUid;
      }
      else
      {
        if (studyInstanceUid_ != studyInstanceUid ||
            seriesInstanceUid_ != seriesInstanceUid)
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange,
                                          "Mixing instances from different series");
        }
      }

      instances_.push_back(instance.release());
      sorted_ = false;
      frames_.clear();
    }

    size_t GetInstancesCount() const
    {
      return instances_.size();
    }

    const Orthanc::DicomMap& GetInstanceTags(size_t index) const
    {
      return GetInstance(index).GetTags();
    }

    const std::string& GetSopInstanceUid(size_t index) const
    {
      return GetInstance(index).GetSopInstanceUid();
    }

    bool IsSorted() const
    {
      return sorted_;
    }

    size_t GetFramesCount() const
    {
      if (sorted_)
      {
        return frames_.size();
      }
      else
      {
        throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls,
                                        "Sort() has not been called");
      }
    }

    const Orthanc::DicomMap& GetFrameTags(size_t index) const
    {
      return GetFrame(index).GetInstance().GetTags();
    }

    const std::string& GetFrameSopInstanceUid(size_t index) const
    {
      return GetFrame(index).GetInstance().GetSopInstanceUid();
    }

    const unsigned int GetFrameSiblingsCount(size_t index) const
    {
      return GetFrame(index).GetInstance().GetNumberOfFrames();
    }

    const unsigned int GetFrameIndex(size_t index) const
    {
      return GetFrame(index).GetFrameIndex();
    }


    void Sort()
    {
      if (!sorted_)
      {
        size_t totalFrames = 0;
        std::set<size_t> remainingInstances;
      
        for (size_t i = 0; i < instances_.size(); i++)
        {
          assert(instances_[i] != NULL);
          totalFrames += instances_[i]->GetNumberOfFrames();
        
          remainingInstances.insert(i);
        }

        frames_.clear();
        frames_.reserve(totalFrames);

        SortUsingIntegerTag(remainingInstances, Orthanc::DICOM_TAG_INSTANCE_NUMBER);  // VR is "IS"
        SortUsingIntegerTag(remainingInstances, Orthanc::DICOM_TAG_IMAGE_INDEX);  // VR is "US"
        SortUsing3DLocation(remainingInstances);
        SortUsingSopInstanceUid(remainingInstances);

        // The following could in theory happen if several instances
        // have the same SOPInstanceUID, no ordering is available
        for (std::set<size_t>::const_iterator it = remainingInstances.begin();
             it != remainingInstances.end(); it++)
        {
          AddFramesOfInstance(remainingInstances, *it);
        }

        if (frames_.size() != totalFrames ||
            !remainingInstances.empty())
        {
          throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
        }
      
        sorted_ = true;
      }
    }


  private:
    void AddFramesOfInstance(std::set<size_t>& remainingInstances,
                             size_t index)
    {
      assert(instances_[index] != NULL);
      const Instance& instance = *instances_[index];
    
      for (unsigned int i = 0; i < instance.GetNumberOfFrames(); i++)
      {
        frames_.push_back(Frame(instance, i));
      }

      assert(remainingInstances.find(index) != remainingInstances.end());
      remainingInstances.erase(index);
    }


    template<typename T>
    class SortableItem
    {
    private:
      T            value_;
      size_t       instance_;
      std::string  sopInstanceUid_;

    public:
      SortableItem(const T& value,
                   size_t instance,
                   const std::string& sopInstanceUid) :
        value_(value),
        instance_(instance),
        sopInstanceUid_(sopInstanceUid)
      {
      }

      size_t GetInstanceIndex() const
      {
        return instance_;
      }

      bool operator< (const SortableItem& other) const
      {
        return (value_ < other.value_ ||
                (value_ == other.value_ &&
                 sopInstanceUid_ < other.sopInstanceUid_));
      }
    };


    void SortUsingIntegerTag(std::set<size_t>& remainingInstances,
                             const Orthanc::DicomTag& tag)
    {
      std::vector< SortableItem<int32_t> > items;
      items.reserve(remainingInstances.size());

      for (std::set<size_t>::const_iterator it = remainingInstances.begin();
           it != remainingInstances.end(); ++it)
      {
        assert(instances_[*it] != NULL);
        const Instance& instance = *instances_[*it];

        int32_t value;
        std::string sopInstanceUid;
        if (instance.GetTags().ParseInteger32(value, tag) &&
            instance.GetTags().LookupStringValue(
              sopInstanceUid, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false))
        {
          items.push_back(SortableItem<int32_t>(value, *it, sopInstanceUid));
        }
      }
    
      std::sort(items.begin(), items.end());

      for (size_t i = 0; i < items.size(); i++)
      {
        AddFramesOfInstance(remainingInstances, items[i].GetInstanceIndex());
      }
    }


    void SortUsingSopInstanceUid(std::set<size_t>& remainingInstances)
    {
      std::vector<SortableItem<int32_t> > items;
      items.reserve(remainingInstances.size());

      for (std::set<size_t>::const_iterator it = remainingInstances.begin();
           it != remainingInstances.end(); ++it)
      {
        assert(instances_[*it] != NULL);
        const Instance& instance = *instances_[*it];

        std::string sopInstanceUid;
        if (instance.GetTags().LookupStringValue(
              sopInstanceUid, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false))
        {
          items.push_back(SortableItem<int32_t>(0 /* arbitrary value */, *it, sopInstanceUid));
        }
      }
    
      std::sort(items.begin(), items.end());

      for (size_t i = 0; i < items.size(); i++)
      {
        AddFramesOfInstance(remainingInstances, items[i].GetInstanceIndex());
      }
    }


    void SortUsing3DLocation(std::set<size_t>& remainingInstances)
    {
      /**
       * Compute the mean of the normal vectors, using the recursive
       * formula for arithmetic means for numerical stability.
       * https://diego.assencio.com/?index=c34d06f4f4de2375658ed41f70177d59
       **/
      
      Vector meanNormal;
      LinearAlgebra::AssignVector(meanNormal, 0, 0, 0);

      unsigned int n = 0;

      for (std::set<size_t>::const_iterator it = remainingInstances.begin();
           it != remainingInstances.end(); ++it)
      {
        assert(instances_[*it] != NULL);
        const Instance& instance = *instances_[*it];

        if (instance.HasPosition())
        {
          n += 1;
          meanNormal += (instance.GetNormal() - meanNormal) / static_cast<float>(n);
        }
      }

      std::vector<SortableItem<float> > items;
      items.reserve(n);
      
      for (std::set<size_t>::const_iterator it = remainingInstances.begin();
           it != remainingInstances.end(); ++it)
      {
        assert(instances_[*it] != NULL);
        const Instance& instance = *instances_[*it];
        
        std::string sopInstanceUid;
        if (instance.HasPosition() &&
            instance.GetTags().LookupStringValue(
              sopInstanceUid, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false))
        {
          double p = LinearAlgebra::DotProduct(meanNormal, instance.GetPosition());
          items.push_back(SortableItem<float>(p, *it, sopInstanceUid));
        }
      }

      assert(items.size() <= n);
    
      std::sort(items.begin(), items.end());
      printf(">> %d\n", items.size());

      for (size_t i = 0; i < items.size(); i++)
      {
        AddFramesOfInstance(remainingInstances, items[i].GetInstanceIndex());
      }
    }
  };
}


TEST(SortedFrames, Basic)
{
  OrthancStone::SortedFrames f;
  ASSERT_TRUE(f.GetStudyInstanceUid().empty());
  ASSERT_TRUE(f.GetSeriesInstanceUid().empty());
  ASSERT_EQ(0u, f.GetInstancesCount());
  ASSERT_THROW(f.GetInstanceTags(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetSopInstanceUid(0), Orthanc::OrthancException);
  ASSERT_TRUE(f.IsSorted());
  ASSERT_EQ(0u, f.GetFramesCount());
  ASSERT_THROW(f.GetFrameTags(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameSopInstanceUid(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameSiblingsCount(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameIndex(0), Orthanc::OrthancException);

  Orthanc::DicomMap tags;
  ASSERT_THROW(f.AddInstance(tags), Orthanc::OrthancException);
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "study", false);
  ASSERT_THROW(f.AddInstance(tags), Orthanc::OrthancException);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "series", false);
  ASSERT_THROW(f.AddInstance(tags), Orthanc::OrthancException);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop", false);
  f.AddInstance(tags);

  ASSERT_EQ("study", f.GetStudyInstanceUid());
  ASSERT_EQ("series", f.GetSeriesInstanceUid());
  ASSERT_EQ(1u, f.GetInstancesCount());
  std::string s;
  ASSERT_TRUE(f.GetInstanceTags(0).LookupStringValue(s, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false));
  ASSERT_EQ("sop", s);
  ASSERT_EQ("sop", f.GetSopInstanceUid(0));
  ASSERT_FALSE(f.IsSorted());
  ASSERT_THROW(f.GetFramesCount(), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameTags(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameSopInstanceUid(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameSiblingsCount(0), Orthanc::OrthancException);
  ASSERT_THROW(f.GetFrameIndex(0), Orthanc::OrthancException);

  f.Sort();
  ASSERT_TRUE(f.IsSorted());
  ASSERT_EQ(1u, f.GetFramesCount());
  ASSERT_TRUE(f.GetFrameTags(0).LookupStringValue(s, Orthanc::DICOM_TAG_SOP_INSTANCE_UID, false));
  ASSERT_EQ("sop", s);
  ASSERT_EQ("sop", f.GetFrameSopInstanceUid(0));
  ASSERT_EQ(1u, f.GetFrameSiblingsCount(0));
  ASSERT_EQ(0u, f.GetFrameIndex(0));
  ASSERT_THROW(f.GetFrameTags(1), Orthanc::OrthancException);
}


TEST(SortedFrames, SortSopInstanceUid)
{
  Orthanc::DicomMap tags;
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "study", false);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "series", false);
    
  OrthancStone::SortedFrames f;
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop3", false);
  tags.SetValue(Orthanc::DICOM_TAG_NUMBER_OF_FRAMES, "1", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop1", false);
  tags.SetValue(Orthanc::DICOM_TAG_NUMBER_OF_FRAMES, "3", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop2", false);
  tags.SetValue(Orthanc::DICOM_TAG_NUMBER_OF_FRAMES, "2", false);
  f.AddInstance(tags);
    
  f.Sort();
  ASSERT_EQ(3u, f.GetInstancesCount());
  ASSERT_EQ("sop3", f.GetSopInstanceUid(0));
  ASSERT_EQ("sop1", f.GetSopInstanceUid(1));
  ASSERT_EQ("sop2", f.GetSopInstanceUid(2));
  ASSERT_EQ(6u, f.GetFramesCount());
  ASSERT_EQ("sop1", f.GetFrameSopInstanceUid(0));  ASSERT_EQ(0u, f.GetFrameIndex(0));
  ASSERT_EQ("sop1", f.GetFrameSopInstanceUid(1));  ASSERT_EQ(1u, f.GetFrameIndex(1));
  ASSERT_EQ("sop1", f.GetFrameSopInstanceUid(2));  ASSERT_EQ(2u, f.GetFrameIndex(2));
  ASSERT_EQ("sop2", f.GetFrameSopInstanceUid(3));  ASSERT_EQ(0u, f.GetFrameIndex(3));
  ASSERT_EQ("sop2", f.GetFrameSopInstanceUid(4));  ASSERT_EQ(1u, f.GetFrameIndex(4));
  ASSERT_EQ("sop3", f.GetFrameSopInstanceUid(5));  ASSERT_EQ(0u, f.GetFrameIndex(5));
}


TEST(SortedFrames, SortInstanceNumber)
{
  Orthanc::DicomMap tags;
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "study", false);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "series", false);
    
  OrthancStone::SortedFrames f;
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop2", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "-20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop2a", false);
  tags.Remove(Orthanc::DICOM_TAG_INSTANCE_NUMBER);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop4", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "10", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop3", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "10", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop5", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "10", false);
  f.AddInstance(tags);
    
  f.Sort();
  ASSERT_EQ(6u, f.GetInstancesCount());
  ASSERT_EQ("sop1", f.GetSopInstanceUid(0));
  ASSERT_EQ("sop2", f.GetSopInstanceUid(1));
  ASSERT_EQ("sop2a", f.GetSopInstanceUid(2));
  ASSERT_EQ("sop4", f.GetSopInstanceUid(3));
  ASSERT_EQ("sop3", f.GetSopInstanceUid(4));
  ASSERT_EQ("sop5", f.GetSopInstanceUid(5));
  ASSERT_EQ(6u, f.GetFramesCount());
  ASSERT_EQ("sop2", f.GetFrameSopInstanceUid(0));  ASSERT_EQ(0u, f.GetFrameIndex(0));
  ASSERT_EQ("sop3", f.GetFrameSopInstanceUid(1));  ASSERT_EQ(0u, f.GetFrameIndex(1));
  ASSERT_EQ("sop4", f.GetFrameSopInstanceUid(2));  ASSERT_EQ(0u, f.GetFrameIndex(2));
  ASSERT_EQ("sop5", f.GetFrameSopInstanceUid(3));  ASSERT_EQ(0u, f.GetFrameIndex(3));
  ASSERT_EQ("sop1", f.GetFrameSopInstanceUid(4));  ASSERT_EQ(0u, f.GetFrameIndex(4));
  ASSERT_EQ("sop2a", f.GetFrameSopInstanceUid(5));  ASSERT_EQ(0u, f.GetFrameIndex(5));
}


TEST(SortedFrames, SortInstanceNumberAndImageIndex)
{
  Orthanc::DicomMap tags;
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "study", false);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "series", false);
    
  OrthancStone::SortedFrames f;
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop2", false);
  tags.Remove(Orthanc::DICOM_TAG_INSTANCE_NUMBER);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_INDEX, "20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop3", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_INDEX, "30", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "sop4", false);
  tags.Remove(Orthanc::DICOM_TAG_IMAGE_INDEX);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "30", false);
  f.AddInstance(tags);
    
  f.Sort();
  ASSERT_EQ(4u, f.GetInstancesCount());
  ASSERT_EQ("sop1", f.GetSopInstanceUid(0));
  ASSERT_EQ("sop2", f.GetSopInstanceUid(1));
  ASSERT_EQ("sop3", f.GetSopInstanceUid(2));
  ASSERT_EQ("sop4", f.GetSopInstanceUid(3));
  ASSERT_EQ(4u, f.GetFramesCount());
  // First instance number, then image index
  ASSERT_EQ("sop1", f.GetFrameSopInstanceUid(0));  ASSERT_EQ(0u, f.GetFrameIndex(0));
  ASSERT_EQ("sop4", f.GetFrameSopInstanceUid(1));  ASSERT_EQ(0u, f.GetFrameIndex(1));
  ASSERT_EQ("sop2", f.GetFrameSopInstanceUid(2));  ASSERT_EQ(0u, f.GetFrameIndex(2));
  ASSERT_EQ("sop3", f.GetFrameSopInstanceUid(3));  ASSERT_EQ(0u, f.GetFrameIndex(3));
}


TEST(SortedFrames, Knix)  // Created using "SortedFramesCreateTest.py"
{
  Orthanc::DicomMap tags;
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "1.2.840.113619.2.176.2025.1499492.7391.1171285944.390", false);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "1.2.840.113619.2.176.2025.1499492.7391.1171285944.392", false);    
  OrthancStone::SortedFrames f;

  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "67b44a5e-8997f88d-6e527bd6-df342483-dab1674c", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-60.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "10", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "a8ee83f9-1cc26ad9-ebba3043-8afc47c2-bd784610", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-42.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "6", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "5a2acb03-063f5063-cac452d1-a55992f9-769900fb", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-114.729\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "22", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "23d12f39-e9a4fc21-8da338c4-97feff30-48e95534", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-83.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "15", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "16606f69-83b48518-ab34304a-c8871b7f-a9298d74", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-78.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "14", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "63d595f3-327a306d-1709bb8b-2a72e11c-4f7221fe", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-96.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "18", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "8bdecadd-e3477e28-bbbf0297-22b0b680-37b13a7c", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-65.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "11", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "b590cc95-55789755-ebd10b76-911e855e-f24e4fe7", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-74.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "13", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "eaa49a94-b9042041-7f45150b-e414f800-d7232874", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-38.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "5", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "6824db93-ed4e2740-07be953f-6d0a8fb3-af0a3a0b", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-105.729\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "e0d82343-9cef01e9-e21df50a-11886a94-1d0216ea", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-51.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "8", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "dc1576ee-25b0b1ef-e038df76-d296fcad-a1456169", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-110.229\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "21", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "b9cf5158-06f8e713-7d5111aa-411fd75b-7be2c51e", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-20.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "1", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "5faf886f-bd5517cf-1a6ba06e-ac0e6ddb-47bdd8b2", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-101.229\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "19", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "3e8f8ec1-b603f874-825552f1-6fcac7fa-72ca1aa5", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-24.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "2", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "7a7c0120-37f6dd58-c46312e6-2559975d-5af4616f", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-87.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "16", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "a0ca6802-56c697c3-0205bab8-42217cfc-84ff0de6", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-33.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "4", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "efce9ff4-3fe07d83-745846f8-fefe5d64-bfea65e6", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-56.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "9", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "fa56f961-d1ae8f6a-989c04f4-7a588e9e-b41b1a13", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-92.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "17", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "f5e889ac-c5afdc37-c5b62074-a8bdeef3-c58d9889", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-69.7285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "12", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "c19fb4b6-ad1224f2-2c3a2b28-0ea233be-38eea0de", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-47.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "7", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "348efc0a-71ee4758-56bd51fa-9703cbff-9b51d4c9", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-29.2285\\-105.586\\73.7768", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "-0\\1\\0\\-0\\-0\\-1", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "3", false);
  f.AddInstance(tags);
  f.Sort();
  ASSERT_EQ(22u, f.GetFramesCount());
  ASSERT_EQ(f.GetFrameSopInstanceUid(0), "b9cf5158-06f8e713-7d5111aa-411fd75b-7be2c51e");
  ASSERT_EQ(f.GetFrameSopInstanceUid(1), "3e8f8ec1-b603f874-825552f1-6fcac7fa-72ca1aa5");
  ASSERT_EQ(f.GetFrameSopInstanceUid(2), "348efc0a-71ee4758-56bd51fa-9703cbff-9b51d4c9");
  ASSERT_EQ(f.GetFrameSopInstanceUid(3), "a0ca6802-56c697c3-0205bab8-42217cfc-84ff0de6");
  ASSERT_EQ(f.GetFrameSopInstanceUid(4), "eaa49a94-b9042041-7f45150b-e414f800-d7232874");
  ASSERT_EQ(f.GetFrameSopInstanceUid(5), "a8ee83f9-1cc26ad9-ebba3043-8afc47c2-bd784610");
  ASSERT_EQ(f.GetFrameSopInstanceUid(6), "c19fb4b6-ad1224f2-2c3a2b28-0ea233be-38eea0de");
  ASSERT_EQ(f.GetFrameSopInstanceUid(7), "e0d82343-9cef01e9-e21df50a-11886a94-1d0216ea");
  ASSERT_EQ(f.GetFrameSopInstanceUid(8), "efce9ff4-3fe07d83-745846f8-fefe5d64-bfea65e6");
  ASSERT_EQ(f.GetFrameSopInstanceUid(9), "67b44a5e-8997f88d-6e527bd6-df342483-dab1674c");
  ASSERT_EQ(f.GetFrameSopInstanceUid(10), "8bdecadd-e3477e28-bbbf0297-22b0b680-37b13a7c");
  ASSERT_EQ(f.GetFrameSopInstanceUid(11), "f5e889ac-c5afdc37-c5b62074-a8bdeef3-c58d9889");
  ASSERT_EQ(f.GetFrameSopInstanceUid(12), "b590cc95-55789755-ebd10b76-911e855e-f24e4fe7");
  ASSERT_EQ(f.GetFrameSopInstanceUid(13), "16606f69-83b48518-ab34304a-c8871b7f-a9298d74");
  ASSERT_EQ(f.GetFrameSopInstanceUid(14), "23d12f39-e9a4fc21-8da338c4-97feff30-48e95534");
  ASSERT_EQ(f.GetFrameSopInstanceUid(15), "7a7c0120-37f6dd58-c46312e6-2559975d-5af4616f");
  ASSERT_EQ(f.GetFrameSopInstanceUid(16), "fa56f961-d1ae8f6a-989c04f4-7a588e9e-b41b1a13");
  ASSERT_EQ(f.GetFrameSopInstanceUid(17), "63d595f3-327a306d-1709bb8b-2a72e11c-4f7221fe");
  ASSERT_EQ(f.GetFrameSopInstanceUid(18), "5faf886f-bd5517cf-1a6ba06e-ac0e6ddb-47bdd8b2");
  ASSERT_EQ(f.GetFrameSopInstanceUid(19), "6824db93-ed4e2740-07be953f-6d0a8fb3-af0a3a0b");
  ASSERT_EQ(f.GetFrameSopInstanceUid(20), "dc1576ee-25b0b1ef-e038df76-d296fcad-a1456169");
  ASSERT_EQ(f.GetFrameSopInstanceUid(21), "5a2acb03-063f5063-cac452d1-a55992f9-769900fb");
}


TEST(SortedFrames, Cardiac)  // Created using "SortedFramesCreateTest.py"
{
  Orthanc::DicomMap tags;
  tags.SetValue(Orthanc::DICOM_TAG_STUDY_INSTANCE_UID, "1.3.51.0.1.1.192.168.29.133.1681753.1681732", false);
  tags.SetValue(Orthanc::DICOM_TAG_SERIES_INSTANCE_UID, "1.3.12.2.1107.5.2.33.37097.2012041612474981424569674.0.0.0", false);    
  OrthancStone::SortedFrames f;

  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "a468da62-a8a6e0b9-f66b86b0-b15fa30b-93077161", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "14", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "1cf40ac9-e823e677-cbd5db4b-9e48b451-cccbf950", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "21", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "d52d5f21-54f1ad99-4015a995-108f7210-ee157944", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "15", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "b348f629-11d59f98-fb22710b-4964b90a-f44436ff", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "12", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "aac4f2ba-e863f124-6af96709-053258a7-3d39db26", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "13", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "8fefe14c-c4c34152-2c3d3514-04e75747-eb7f01f0", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "20", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "20b42f52-6d5f784b-cdbc0fbe-4bfc6b0c-5a199c75", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "17", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "931d0c36-8fbb4101-70e6d756-edb15431-aaa9a31b", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "19", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "9e3b97ec-25b86a67-2cbb8f77-94e73268-4509d383", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "10", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "caa62568-fdf894fe-08f830a2-5a468967-681d954b", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "18", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "e734c170-96b0a397-95e3b43e-d7a5ed74-025843c8", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "22", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "efc9f411-9f4294e0-66d292a1-b8b6b421-897f1d80", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "11", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "8346a1db-0b08a22b-9045aaad-57098aac-5b2e9159", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "16", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "8c7d1e4d-7936f799-c4b8b56b-32d0d9a6-2b492e98", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "3", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "faec09f9-ca7fe0f0-2b25c370-bb1bfaef-8ccfa560", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "4", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "99c20bcc-115ae447-84d616f2-cb6c5576-9f67aa7a", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "23", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "7906b806-47190031-72c5043c-d42704c1-688a3b23", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "9", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "c9dfc022-7b377063-08bdc5e8-fedcc463-8de22ee6", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "6", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "6570b6c0-7d2f324d-db7cad50-843f62df-d0446352", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "5", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "0be36fe7-6c7a762b-281cf109-fff9d8ea-42e16b7a", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "7", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "ec282396-a8209d00-1c5091f3-f632bf3d-a1bcebba", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "8", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "fda415d4-f1429b07-5d1cd9f0-675059ff-c0ce9e67", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "1", false);
  f.AddInstance(tags);
  tags.SetValue(Orthanc::DICOM_TAG_SOP_INSTANCE_UID, "f555ef96-6b01a90c-bdc2585a-dd17bb3a-75e89920", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_POSITION_PATIENT, "-37.318577811371\\-157.20910163001\\232.94204104611", false);
  tags.SetValue(Orthanc::DICOM_TAG_IMAGE_ORIENTATION_PATIENT, "0.73931693068262\\0.61320183243991\\-0.2781977510663\\-0.3521819177853\\-3.9073598e-009\\-0.9359315662938", false);
  tags.SetValue(Orthanc::DICOM_TAG_INSTANCE_NUMBER, "2", false);
  f.AddInstance(tags);
  f.Sort();
  ASSERT_EQ(23u, f.GetFramesCount());
  ASSERT_EQ(f.GetFrameSopInstanceUid(0), "fda415d4-f1429b07-5d1cd9f0-675059ff-c0ce9e67");
  ASSERT_EQ(f.GetFrameSopInstanceUid(1), "f555ef96-6b01a90c-bdc2585a-dd17bb3a-75e89920");
  ASSERT_EQ(f.GetFrameSopInstanceUid(2), "8c7d1e4d-7936f799-c4b8b56b-32d0d9a6-2b492e98");
  ASSERT_EQ(f.GetFrameSopInstanceUid(3), "faec09f9-ca7fe0f0-2b25c370-bb1bfaef-8ccfa560");
  ASSERT_EQ(f.GetFrameSopInstanceUid(4), "6570b6c0-7d2f324d-db7cad50-843f62df-d0446352");
  ASSERT_EQ(f.GetFrameSopInstanceUid(5), "c9dfc022-7b377063-08bdc5e8-fedcc463-8de22ee6");
  ASSERT_EQ(f.GetFrameSopInstanceUid(6), "0be36fe7-6c7a762b-281cf109-fff9d8ea-42e16b7a");
  ASSERT_EQ(f.GetFrameSopInstanceUid(7), "ec282396-a8209d00-1c5091f3-f632bf3d-a1bcebba");
  ASSERT_EQ(f.GetFrameSopInstanceUid(8), "7906b806-47190031-72c5043c-d42704c1-688a3b23");
  ASSERT_EQ(f.GetFrameSopInstanceUid(9), "9e3b97ec-25b86a67-2cbb8f77-94e73268-4509d383");
  ASSERT_EQ(f.GetFrameSopInstanceUid(10), "efc9f411-9f4294e0-66d292a1-b8b6b421-897f1d80");
  ASSERT_EQ(f.GetFrameSopInstanceUid(11), "b348f629-11d59f98-fb22710b-4964b90a-f44436ff");
  ASSERT_EQ(f.GetFrameSopInstanceUid(12), "aac4f2ba-e863f124-6af96709-053258a7-3d39db26");
  ASSERT_EQ(f.GetFrameSopInstanceUid(13), "a468da62-a8a6e0b9-f66b86b0-b15fa30b-93077161");
  ASSERT_EQ(f.GetFrameSopInstanceUid(14), "d52d5f21-54f1ad99-4015a995-108f7210-ee157944");
  ASSERT_EQ(f.GetFrameSopInstanceUid(15), "8346a1db-0b08a22b-9045aaad-57098aac-5b2e9159");
  ASSERT_EQ(f.GetFrameSopInstanceUid(16), "20b42f52-6d5f784b-cdbc0fbe-4bfc6b0c-5a199c75");
  ASSERT_EQ(f.GetFrameSopInstanceUid(17), "caa62568-fdf894fe-08f830a2-5a468967-681d954b");
  ASSERT_EQ(f.GetFrameSopInstanceUid(18), "931d0c36-8fbb4101-70e6d756-edb15431-aaa9a31b");
  ASSERT_EQ(f.GetFrameSopInstanceUid(19), "8fefe14c-c4c34152-2c3d3514-04e75747-eb7f01f0");
  ASSERT_EQ(f.GetFrameSopInstanceUid(20), "1cf40ac9-e823e677-cbd5db4b-9e48b451-cccbf950");
  ASSERT_EQ(f.GetFrameSopInstanceUid(21), "e734c170-96b0a397-95e3b43e-d7a5ed74-025843c8");
  ASSERT_EQ(f.GetFrameSopInstanceUid(22), "99c20bcc-115ae447-84d616f2-cb6c5576-9f67aa7a");
}