X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FMEDLoader%2FMEDFileFieldOverView.hxx;h=bcce70af29d4ea4d415db8984bc33c38eac44de7;hb=662a2a2393a25baef77e42f74204b11b70a9646c;hp=7951df90c3d1943b7065630372e68a71a79bf446;hpb=aa6df0bd86f74a1a90d64bd8bcf44f50922b4e87;p=tools%2Fmedcoupling.git

diff --git a/src/MEDLoader/MEDFileFieldOverView.hxx b/src/MEDLoader/MEDFileFieldOverView.hxx
index 7951df90c..bcce70af2 100644
--- a/src/MEDLoader/MEDFileFieldOverView.hxx
+++ b/src/MEDLoader/MEDFileFieldOverView.hxx
@@ -1,9 +1,9 @@
-// Copyright (C) 2007-2013  CEA/DEN, EDF R&D
+// Copyright (C) 2007-2023  CEA, EDF
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
 // License as published by the Free Software Foundation; either
-// version 2.1 of the License.
+// version 2.1 of the License, or (at your option) any later version.
 //
 // This library is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -21,81 +21,255 @@
 #ifndef __MEDFILEFIELDOVERVIEW_HXX__
 #define __MEDFILEFIELDOVERVIEW_HXX__
 
-#include "MEDCouplingAutoRefCountObjectPtr.hxx"
+#include "MEDLoaderDefines.hxx"
+
+#include "MCAuto.hxx"
 #include "MEDCouplingRefCountObject.hxx"
+#include "MEDCoupling1GTUMesh.hxx"
 
 #include "NormalizedUnstructuredMesh.hxx"
 #include "InterpKernelException.hxx"
 
 #include <vector>
 
-namespace ParaMEDMEM
+namespace MEDCoupling
 {
   class DataArrayInt;
+  class MEDCouplingMesh;
   class MEDFileMesh;
+  class MEDFileUMesh;
+  class MEDFileCMesh;
+  class MEDFileStructuredMesh;
+  class MEDFileCurveLinearMesh;
   class MEDFileFieldGlobs;
+  class MEDFileFieldGlobsReal;
   class MEDFileAnyTypeField1TS;
   class MEDFileAnyTypeFieldMultiTS;
 
   class MEDFileMeshStruct : public RefCountObject
   {
   public:
-    static MEDFileMeshStruct *New(const MEDFileMesh *mesh);
-    std::size_t getHeapMemorySize() const;
+    MEDLOADER_EXPORT static MEDFileMeshStruct *New(const MEDFileMesh *mesh);
+    std::string getClassName() const override { return std::string("MEDFileMeshStruct"); }
+    std::size_t getHeapMemorySizeWithoutChildren() const;
+    std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
     const MEDFileMesh *getTheMesh() const { return _mesh; }
-    int getNumberOfNodes() const { return _nb_nodes; }
-    int getNumberOfElemsOfGeoType(INTERP_KERNEL::NormalizedCellType t) const throw(INTERP_KERNEL::Exception);
-    int getLevelOfGeoType(INTERP_KERNEL::NormalizedCellType t) const throw(INTERP_KERNEL::Exception);
+    mcIdType getNumberOfNodes() const { return _nb_nodes; }
+    bool doesManageGeoType(INTERP_KERNEL::NormalizedCellType t) const;
+    mcIdType getNumberOfElemsOfGeoType(INTERP_KERNEL::NormalizedCellType t) const;
+    int getLevelOfGeoType(INTERP_KERNEL::NormalizedCellType t) const;
     int getNumberOfLevs() const;
-    int getNumberOfGeoTypesInLev(int relativeLev) const throw(INTERP_KERNEL::Exception);
+    int getNumberOfGeoTypesInLev(int relativeLev) const;
+    // non const methods
+    void appendIfImplicitType(INTERP_KERNEL::NormalizedCellType t);
   private:
     MEDFileMeshStruct(const MEDFileMesh *mesh);
   private:
     const MEDFileMesh *_mesh;
     std::string _name;
-    int _nb_nodes;
-    std::vector< std::vector<int> > _geo_types_distrib;
+    mcIdType _nb_nodes;
+    std::vector< std::vector<mcIdType> > _geo_types_distrib;
+  }; 
+
+  class MEDFileField1TSStructItem;
+
+  class MEDMeshMultiLev : public RefCountObject
+  {
+  public:
+    std::size_t getHeapMemorySizeWithoutChildren() const;
+    std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
+    std::string getClassName() const override { return std::string("MEDMeshMultiLev"); }
+  public:
+    static MEDMeshMultiLev *New(const MEDFileMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+    static MEDMeshMultiLev *New(const MEDFileMesh *m, const std::vector<int>& levs);
+    static MEDMeshMultiLev *NewOnlyOnNode(const MEDFileMesh *m, const DataArrayIdType *pflOnNode);
+    void setNodeReduction(const DataArrayIdType *nr);
+    void setCellReduction(const DataArrayIdType *cr);
+    bool isFastlyTheSameStruct(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs) const;
+    MEDLOADER_EXPORT DataArray *buildDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const;
+    MEDLOADER_EXPORT void retrieveFamilyIdsOnCells(DataArrayIdType *& famIds, bool& isWithoutCopy) const;
+    MEDLOADER_EXPORT void retrieveNumberIdsOnCells(DataArrayIdType *& numIds, bool& isWithoutCopy) const;
+    MEDLOADER_EXPORT void retrieveFamilyIdsOnNodes(DataArrayIdType *& famIds, bool& isWithoutCopy) const;
+    MEDLOADER_EXPORT void retrieveNumberIdsOnNodes(DataArrayIdType *& numIds, bool& isWithoutCopy) const;
+    MEDLOADER_EXPORT DataArrayIdType *retrieveGlobalNodeIdsIfAny() const;
+    MEDLOADER_EXPORT std::vector< INTERP_KERNEL::NormalizedCellType > getGeoTypes() const;
+    void setFamilyIdsOnCells(DataArrayIdType *famIds);
+    void setNumberIdsOnCells(DataArrayIdType *numIds);
+    void setFamilyIdsOnNodes(DataArrayIdType *famIds);
+    void setNumberIdsOnNodes(DataArrayIdType *numIds);
+    virtual void selectPartOfNodes(const DataArrayIdType *pflNodes) = 0;
+    virtual MEDMeshMultiLev *prepare() const = 0;
+    mcIdType getNumberOfCells(INTERP_KERNEL::NormalizedCellType t) const;
+    mcIdType getNumberOfNodes() const;
+  protected:
+    std::string getPflNameOfId(int id) const;
+    DataArray *constructDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const;
+    virtual void appendVertices(const DataArrayIdType *verticesToAdd, DataArrayIdType *nr);
+  protected:
+    MEDMeshMultiLev(const MEDFileMesh *mesh);
+    MEDMeshMultiLev(const MEDMeshMultiLev& other);
+    MEDMeshMultiLev(const MEDFileMesh *mesh, mcIdType nbNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+  protected:
+    const MEDFileMesh *_mesh;
+    std::vector< MCAuto<DataArrayIdType> > _pfls;
+    std::vector< INTERP_KERNEL::NormalizedCellType > _geo_types;
+    std::vector<mcIdType> _nb_entities;
+    MCAuto<DataArrayIdType> _node_reduction;
+    mcIdType _nb_nodes;
+    //
+    MCAuto<DataArrayIdType> _cell_fam_ids;
+    MCAuto<DataArrayIdType> _cell_num_ids;
+    MCAuto<DataArrayIdType> _node_fam_ids;
+    MCAuto<DataArrayIdType> _node_num_ids;
+  public:
+    MEDLOADER_EXPORT static const int PARAMEDMEM_2_VTKTYPE_LGTH=MEDCOUPLING2VTKTYPETRADUCER_LGTH;
+    MEDLOADER_EXPORT static const unsigned char *PARAMEDMEM_2_VTKTYPE;
+    MEDLOADER_EXPORT static const unsigned char HEXA27_PERM_ARRAY[27];
+  };
+
+  class MEDStructuredMeshMultiLev;
+
+  class MEDUMeshMultiLev : public MEDMeshMultiLev
+  {
+  public:
+    static MEDUMeshMultiLev *New(const MEDFileUMesh *m, const std::vector<int>& levs);
+    static MEDUMeshMultiLev *New(const MEDFileUMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+    void selectPartOfNodes(const DataArrayIdType *pflNodes);
+    std::string getClassName() const override { return std::string("MEDUMeshMultiLev"); }
+    MEDMeshMultiLev *prepare() const;
+    MEDUMeshMultiLev(const MEDStructuredMeshMultiLev& other, const MCAuto<MEDCoupling1GTUMesh>& part);
+    MEDLOADER_EXPORT bool buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *&types, DataArrayIdType *&cellLocations, DataArrayIdType *& cells, DataArrayIdType *&faceLocations, DataArrayIdType *&faces) const;
+  protected:
+    void appendVertices(const DataArrayIdType *verticesToAdd, DataArrayIdType *nr);
+  private:
+    void reorderNodesIfNecessary(MCAuto<DataArrayDouble>& coords, DataArrayIdType *nodalConnVTK, DataArrayIdType *polyhedNodalConnVTK) const;
+  private:
+    MEDUMeshMultiLev(const MEDUMeshMultiLev& other);
+    MEDUMeshMultiLev(const MEDFileUMesh *m, const std::vector<int>& levs);
+    MEDUMeshMultiLev(const MEDFileUMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+  private:
+    std::vector< MCAuto<MEDCoupling1GTUMesh> > _parts;
+    //! this attribute is used only for mesh with no cells but having coordinates. For classical umeshes those pointer is equal to pointer of coordinates of instances in this->_parts.
+    MCAuto<DataArrayDouble> _coords;
+  };
+
+  class MEDStructuredMeshMultiLev : public MEDMeshMultiLev
+  {
+  public:
+    void selectPartOfNodes(const DataArrayIdType *pflNodes);
+    virtual std::vector<mcIdType> getNodeGridStructure() const = 0;
+    std::string getClassName() const override { return std::string("MEDStructuredMeshMultiLev"); }
+  protected:
+    MEDStructuredMeshMultiLev(const MEDStructuredMeshMultiLev& other);
+    MEDStructuredMeshMultiLev(const MEDFileStructuredMesh *m, const std::vector<int>& lev);
+    MEDStructuredMeshMultiLev(const MEDFileStructuredMesh *m, mcIdType nbOfNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+    void dealWithImplicitUnstructuredMesh(const MEDFileMesh *m);
+  protected:
+    void moveFaceToCell() const;
+    bool prepareForImplicitUnstructuredMeshCase(MEDMeshMultiLev *&ret) const;
+  private:
+    void initStdFieldOfIntegers(const MEDFileStructuredMesh *m);
+  protected:
+    bool _is_internal;
+    MCAuto<DataArrayIdType> _face_fam_ids;
+    MCAuto<DataArrayIdType> _face_num_ids;
+  };
+
+  class MEDCMeshMultiLev : public MEDStructuredMeshMultiLev
+  {
+  public:
+    static MEDCMeshMultiLev *New(const MEDFileCMesh *m, const std::vector<int>& levs);
+    static MEDCMeshMultiLev *New(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+    std::vector<mcIdType> getNodeGridStructure() const;
+    std::string getClassName() const override { return std::string("MEDCMeshMultiLev"); }
+    MEDMeshMultiLev *prepare() const;
+    MEDLOADER_EXPORT std::vector< DataArrayDouble * > buildVTUArrays(bool& isInternal) const;
+  private:
+    MEDCMeshMultiLev(const MEDCMeshMultiLev& other);
+    MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<int>& levs);
+    MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+  private:
+    std::vector< MCAuto<DataArrayDouble> > _coords;
   };
 
-  class MEDFileField1TSStructItem2
+  class MEDCurveLinearMeshMultiLev : public MEDStructuredMeshMultiLev
+  {
+  public:
+    static MEDCurveLinearMeshMultiLev *New(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs);
+    static MEDCurveLinearMeshMultiLev *New(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls , const std::vector<mcIdType>& nbEntities);
+    std::string getClassName() const override { return std::string("MEDCurveLinearMeshMultiLev"); }
+    std::vector<mcIdType> getNodeGridStructure() const;
+    MEDMeshMultiLev *prepare() const;
+    MEDLOADER_EXPORT void buildVTUArrays(DataArrayDouble *&coords, std::vector<mcIdType>& nodeStrct, bool& isInternal) const;
+  private:
+    MEDCurveLinearMeshMultiLev(const MEDCurveLinearMeshMultiLev& other);
+    MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs);
+    MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayIdType *>& pfls, const std::vector<mcIdType>& nbEntities);
+  private:
+    MCAuto<DataArrayDouble> _coords;
+    std::vector<mcIdType> _structure;
+  };
+
+  class MEDFileField1TSStructItem2 : public BigMemoryObject
   {
   public:
     MEDFileField1TSStructItem2();
-    MEDFileField1TSStructItem2(INTERP_KERNEL::NormalizedCellType a, const std::pair<int,int>& b, const std::string& pfl, const std::string& loc);
-    void checkWithMeshStructForCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
-    void checkWithMeshStructForGaussNE(const MEDFileMeshStruct *mst, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
-    void checkWithMeshStructForGaussPT(const MEDFileMeshStruct *mst, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
+    MEDFileField1TSStructItem2(INTERP_KERNEL::NormalizedCellType a, const std::pair<mcIdType,mcIdType>& b, const std::string& pfl, const std::string& loc);
+    std::string getClassName() const override { return std::string("MEDFileField1TSStructItem2"); }
+    void checkWithMeshStructForCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs);
+    void checkWithMeshStructForGaussNE(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs);
+    void checkWithMeshStructForGaussPT(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs);
     //
+    MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
+    MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
+    //
+    const DataArrayIdType *getPfl(const MEDFileFieldGlobsReal *globs) const;
     INTERP_KERNEL::NormalizedCellType getGeo() const { return _geo_type; }
+    mcIdType getNbEntity() const { return _nb_of_entity; }
+    const std::pair<mcIdType,mcIdType>& getStartStop() const { return _start_end; }
     std::string getPflName() const;
+    int getNbOfIntegrationPts(const MEDFileFieldGlobsReal *globs) const;
     //! warning this method also set _nb_of_entity attribute !
-    void checkInRange(int nbOfEntity, int nip, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
-    bool operator==(const MEDFileField1TSStructItem2& other) const throw(INTERP_KERNEL::Exception);
-    bool isCellSupportEqual(const MEDFileField1TSStructItem2& other) const throw(INTERP_KERNEL::Exception);
-    static MEDFileField1TSStructItem2 BuildAggregationOf(const std::vector<const MEDFileField1TSStructItem2 *>& objs, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
+    void checkInRange(mcIdType nbOfEntity, int nip, const MEDFileFieldGlobsReal *globs);
+    bool isFastlyEqual(mcIdType& startExp, INTERP_KERNEL::NormalizedCellType gt, const std::string& pflName) const;
+    bool operator==(const MEDFileField1TSStructItem2& other) const;
+    bool isCellSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const;
+    bool isNodeSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const;
+    static MEDFileField1TSStructItem2 BuildAggregationOf(const std::vector<const MEDFileField1TSStructItem2 *>& objs, const MEDFileFieldGlobsReal *globs);
+  public:
+    static const char NEWLY_CREATED_PFL_NAME[];
   private:
     INTERP_KERNEL::NormalizedCellType _geo_type;
-    std::pair<int,int> _start_end;
-    MEDCouplingAutoRefCountObjectPtr<DataArrayInt> _pfl;
+    std::pair<mcIdType,mcIdType> _start_end;
+    MCAuto<DataArrayIdType> _pfl;
     std::string _loc;
-    int _nb_of_entity;
+    mcIdType _nb_of_entity;
   };
 
-  class MEDFileField1TSStructItem
+  class MEDFileField1TSStructItem : public BigMemoryObject
   {
   public:
+    MEDFileField1TSStructItem():_computed(false),_type(ON_CELLS) { }
     MEDFileField1TSStructItem(TypeOfField a, const std::vector< MEDFileField1TSStructItem2 >& b);
-    void checkWithMeshStruct(const MEDFileMeshStruct *mst, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
-    bool operator==(const MEDFileField1TSStructItem& other) const throw(INTERP_KERNEL::Exception);
+    void checkWithMeshStruct(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs);
+    bool operator==(const MEDFileField1TSStructItem& other) const;
+    std::string getClassName() const override { return std::string("MEDFileField1TSStructItem"); }
+    MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
+    MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
     bool isEntityCell() const;
     bool isComputed() const { return _computed; }
+    TypeOfField getType() const { return _type; }
     std::size_t getNumberOfItems() const { return _items.size(); }
-    const MEDFileField1TSStructItem2& operator[](std::size_t i) const throw(INTERP_KERNEL::Exception);
+    const MEDFileField1TSStructItem2& operator[](std::size_t i) const;
     //
-    bool isCellSupportEqual(const MEDFileField1TSStructItem& other) const throw(INTERP_KERNEL::Exception);
-    MEDFileField1TSStructItem simplifyMeOnCellEntity(const MEDFileFieldGlobs *globs) const throw(INTERP_KERNEL::Exception);
-    bool isCompatibleWithNodesDiscr(const MEDFileField1TSStructItem& other, const MEDFileMeshStruct *meshSt, const MEDFileFieldGlobs *globs) const throw(INTERP_KERNEL::Exception);
-    bool isFullyOnOneLev(const MEDFileMeshStruct *meshSt, int& theFirstLevFull) const throw(INTERP_KERNEL::Exception);
+    bool isCellSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const;
+    bool isNodeSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const;
+    MEDFileField1TSStructItem simplifyMeOnCellEntity(const MEDFileFieldGlobsReal *globs) const;
+    bool isCompatibleWithNodesDiscr(const MEDFileField1TSStructItem& other, const MEDFileMeshStruct *meshSt, const MEDFileFieldGlobsReal *globs) const;
+    bool isFullyOnOneLev(const MEDFileMeshStruct *meshSt, int& theFirstLevFull) const;
+    std::vector<INTERP_KERNEL::NormalizedCellType> getGeoTypes(const MEDFileMesh *m) const;
+    MEDLOADER_EXPORT MEDMeshMultiLev *buildFromScratchDataSetSupportOnCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const;
+    MEDLOADER_EXPORT static MEDFileField1TSStructItem BuildItemFrom(const MEDFileAnyTypeField1TS *ref, const MEDFileMeshStruct *meshSt);
   private:
     bool _computed;
     TypeOfField _type;
@@ -105,15 +279,21 @@ namespace ParaMEDMEM
   class MEDFileField1TSStruct : public RefCountObject
   {
   public:
-    static MEDFileField1TSStruct *New(const MEDFileAnyTypeField1TS *ref, MEDFileMeshStruct *mst) throw(INTERP_KERNEL::Exception);
-    void checkWithMeshStruct(MEDFileMeshStruct *mst, const MEDFileFieldGlobs *globs) throw(INTERP_KERNEL::Exception);
-    std::size_t getHeapMemorySize() const;
-    bool isEqualConsideringThePast(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *mst) const throw(INTERP_KERNEL::Exception);
-    bool isSupportSameAs(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt) throw(INTERP_KERNEL::Exception);
-    bool isCompatibleWithNodesDiscr(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt) throw(INTERP_KERNEL::Exception);
+    static MEDFileField1TSStruct *New(const MEDFileAnyTypeField1TS *ref, MEDFileMeshStruct *mst);
+    void checkWithMeshStruct(MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs);
+    std::size_t getHeapMemorySizeWithoutChildren() const;
+    std::string getClassName() const override { return std::string("MEDFileField1TSStruct"); }
+    std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
+    bool isEqualConsideringThePast(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *mst) const;
+    bool isSupportSameAs(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt);
+    bool isCompatibleWithNodesDiscr(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt);
+    MEDLOADER_EXPORT MEDMeshMultiLev *buildFromScratchDataSetSupport(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const;
+    bool isDataSetSupportFastlyEqualTo(const MEDFileField1TSStruct& other, const MEDFileFieldGlobsReal *globs) const;
+    std::vector<INTERP_KERNEL::NormalizedCellType> getGeoTypes(const MEDFileMesh *m) const;
   private:
     MEDFileField1TSStruct(const MEDFileAnyTypeField1TS *ref, MEDFileMeshStruct *mst);
-    static MEDFileField1TSStructItem BuildItemFrom(const MEDFileAnyTypeField1TS *ref, const MEDFileMeshStruct *meshSt);
+    bool presenceOfCellDiscr(int& pos) const;
+    bool presenceOfPartialNodeDiscr(int& pos) const;
   private:
     std::vector<MEDFileField1TSStructItem> _already_checked;
   };
@@ -121,15 +301,21 @@ namespace ParaMEDMEM
   class MEDFileFastCellSupportComparator : public RefCountObject
   {
   public:
-    static MEDFileFastCellSupportComparator *New(const MEDFileMesh *m, const MEDFileAnyTypeFieldMultiTS *ref) throw(INTERP_KERNEL::Exception);
-    bool isEqual(const MEDFileAnyTypeFieldMultiTS *other) throw(INTERP_KERNEL::Exception);
-    bool isCompatibleWithNodesDiscr(const MEDFileAnyTypeFieldMultiTS *other) throw(INTERP_KERNEL::Exception);
-    std::size_t getHeapMemorySize() const;
+    MEDLOADER_EXPORT static MEDFileFastCellSupportComparator *New(const MEDFileMeshStruct *m, const MEDFileAnyTypeFieldMultiTS *ref);
+    MEDLOADER_EXPORT std::string getClassName() const override { return std::string("MEDFileFastCellSupportComparator"); }
+    MEDLOADER_EXPORT MEDMeshMultiLev *buildFromScratchDataSetSupport(int timeStepId, const MEDFileFieldGlobsReal *globs) const;
+    MEDLOADER_EXPORT bool isDataSetSupportEqualToThePreviousOne(int timeStepId, const MEDFileFieldGlobsReal *globs) const;
+    MEDLOADER_EXPORT int getNumberOfTS() const;
+    MEDLOADER_EXPORT std::vector<INTERP_KERNEL::NormalizedCellType> getGeoTypesAt(int timeStepId, const MEDFileMesh *m) const;
+    bool isEqual(const MEDFileAnyTypeFieldMultiTS *other);
+    bool isCompatibleWithNodesDiscr(const MEDFileAnyTypeFieldMultiTS *other);
+    std::size_t getHeapMemorySizeWithoutChildren() const;
+    std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
   private:
-    MEDFileFastCellSupportComparator(const MEDFileMesh *m, const MEDFileAnyTypeFieldMultiTS *ref);
+    MEDFileFastCellSupportComparator(const MEDFileMeshStruct *m, const MEDFileAnyTypeFieldMultiTS *ref);
   private:
-    MEDCouplingAutoRefCountObjectPtr<MEDFileMeshStruct> _mesh_comp;
-    std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileField1TSStruct> > _f1ts_cmps;
+    MCAuto<MEDFileMeshStruct> _mesh_comp;
+    std::vector< MCAuto<MEDFileField1TSStruct> > _f1ts_cmps;
   };
 }