From 016508c40aa0e1f6598a88240cd21ad62abfe583 Mon Sep 17 00:00:00 2001
From: Mathieu Westphal <mathieu.westphal@kitware.com>
Date: Wed, 29 Jul 2026 09:23:03 +0200
Subject: [PATCH] Fix compilation issue after VTK deprecation removals

---
 plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx | 2 +-
 plugin/MEDReaderIO/vtkExtractCellType.cxx                | 6 +++---
 plugin/MEDReaderIO/vtkUgSelectCellIds.cxx                | 9 +++------
 3 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx b/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
index 8afcb14b..4f70b44d 100644
--- a/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
+++ b/plugin/MEDLoaderForPV/MEDFileFieldRepresentationTree.cxx
@@ -745,7 +745,7 @@ vtkUnstructuredGrid *MEDFileFieldRepresentationLeaves::buildVTKInstanceNoTimeInt
   vtkNew<vtkCellArray> cells;
   vtkNew<vtkIdTypeArray> cells2;
   AssignDataPointerOther<vtkIdTypeArray,DataArrayIdType>(cells2,cellsSafe,cellsSafe->getNbOfElems());
-  cells->SetCells(nbOfCells,cells2);
+  cells->ImportLegacyFormat(cells2);
   if(faceLocationsOffsetSafe.isNotNull())
     {
       vtkNew<vtkIdTypeArray> faceLocationsOffset;
diff --git a/plugin/MEDReaderIO/vtkExtractCellType.cxx b/plugin/MEDReaderIO/vtkExtractCellType.cxx
index 29308087..950a6066 100644
--- a/plugin/MEDReaderIO/vtkExtractCellType.cxx
+++ b/plugin/MEDReaderIO/vtkExtractCellType.cxx
@@ -1,7 +1,7 @@
 #include "vtkExtractCellType.h"
 
 #include "vtkCell.h"
-#include "vtkCellTypes.h"
+#include "vtkCellTypeUtilities.h"
 #include "vtkCompositeDataSet.h"
 #include "vtkCompositeDataIterator.h"
 #include "vtkDataArraySelection.h"
@@ -29,7 +29,7 @@ void vtkExtractCellType::AppendToGeoTypes(vtkDataSet* dataset)
     vtkCell* cell = dataset->GetCell(i);
 
     // TODO use MEDCoupling CellType API
-    const char* cellType = vtkCellTypes::GetClassNameFromTypeId(cell->GetCellType());
+    const char* cellType = vtkCellTypeUtilities::GetClassNameFromTypeId(cell->GetCellType());
     if (!this->FieldSelection->ArrayExists(cellType))
     {
       this->FieldSelection->AddArray(cellType, false);
@@ -45,7 +45,7 @@ void vtkExtractCellType::SelectIds(vtkDataSet* dataset, vtkIdTypeArray* selArr)
     vtkCell* cell = dataset->GetCell(i);
     
     // TODO use MEDCoupling CellType API
-    const char* cellType = vtkCellTypes::GetClassNameFromTypeId(cell->GetCellType());
+    const char* cellType = vtkCellTypeUtilities::GetClassNameFromTypeId(cell->GetCellType());
 
     // Needed as append to geotypes may not have been done in request information
     // when loading state
diff --git a/plugin/MEDReaderIO/vtkUgSelectCellIds.cxx b/plugin/MEDReaderIO/vtkUgSelectCellIds.cxx
index b2ee0404..8fc662e9 100644
--- a/plugin/MEDReaderIO/vtkUgSelectCellIds.cxx
+++ b/plugin/MEDReaderIO/vtkUgSelectCellIds.cxx
@@ -64,8 +64,6 @@ int vtkUgSelectCellIds::RequestData(vtkInformation *vtkNotUsed(request), vtkInfo
   vtkNew<vtkIdTypeArray> outNodalConn;
   vtkNew<vtkUnsignedCharArray> outCellTypes;
   outCellTypes->SetNumberOfComponents(1); outCellTypes->SetNumberOfTuples(outputNbCells);
-  vtkNew<vtkIdTypeArray> outCellLocations;
-  outCellLocations->SetNumberOfComponents(1); outCellLocations->SetNumberOfTuples(outputNbCells);
   vtkIdType outConnLgth(0);
   for( const vtkIdType *cellId = _ids->GetPointer(0) ; cellId != _ids->GetPointer(outputNbCells) ; ++cellId )
   {
@@ -83,12 +81,11 @@ int vtkUgSelectCellIds::RequestData(vtkInformation *vtkNotUsed(request), vtkInfo
     } 
   }
   outNodalConn->SetNumberOfComponents(1); outNodalConn->SetNumberOfTuples(outConnLgth);
-  vtkIdType *outConnPt(outNodalConn->GetPointer(0)),*outCellLocPt(outCellLocations->GetPointer(0));
+  vtkIdType *outConnPt(outNodalConn->GetPointer(0));
   vtkIdType outCurCellLoc = 0;
   unsigned char *outCellTypePt(outCellTypes->GetPointer(0));
   for( const vtkIdType *cellId = _ids->GetPointer(0) ; cellId != _ids->GetPointer(outputNbCells) ; ++cellId )
   {
-      outCellLocPt[0] = outCurCellLoc;
       vtkIdType npts;
       const vtkIdType *pts;
       ds->GetCellPoints(*cellId, npts, pts);
@@ -120,8 +117,8 @@ int vtkUgSelectCellIds::RequestData(vtkInformation *vtkNotUsed(request), vtkInfo
     outPointData->AddArray(outArray);
   }
   //
-  outCellArray->SetCells(outputNbCells,outNodalConn);
-  output->SetCells(outCellTypes,outCellLocations,outCellArray);
+  outCellArray->ImportLegacyFormat(outNodalConn);
+  output->SetCells(outCellTypes,outCellArray);
   //
   return 1;
 }