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23418: [OCC] Mesh: Minimization of memory usage of SMESH

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attempt to improve compacting
This commit is contained in:
eap 2018-02-19 16:04:29 +03:00
parent 7d38b59de5
commit 2c9f1eaba0
1 changed files with 17 additions and 10 deletions
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19
src/SMDS/SMDS_UnstructuredGrid.cxx
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@ -188,10 +188,10 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
int oldNodeSize = this->GetNumberOfPoints();
bool updateNodes = ( oldNodeSize > newNodeSize );
if ( updateNodes )
if ( true /*updateNodes*/ )
{
// 21125: EDF 1233 SMESH: Degradation of precision in a test case for quadratic conversion
// using double type for storing coordinates of nodes instead float.
// Use double type for storing coordinates of nodes instead float.
vtkPoints *newPoints = vtkPoints::New();
newPoints->SetDataType( VTK_DOUBLE );
newPoints->SetNumberOfPoints( newNodeSize );
@ -212,8 +212,11 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
this->SetPoints(newPoints);
newPoints->Delete();
}
else
{
this->Points->Squeeze();
this->Points->Modified();
}
// Compact cells if VTK IDs do not correspond to SMDS IDs or nodes compacted
@ -222,7 +225,7 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
for ( int newID = 0, nbIDs = idCellsNewToOld.size(); newID < nbIDs && !updateCells; ++newID )
updateCells = ( idCellsNewToOld[ newID ] != newID );
if ( !updateCells ) // no holes in elements
if ( false /*!updateCells*/ ) // no holes in elements
{
this->Connectivity->Squeeze();
this->Locations->Squeeze();
@ -245,10 +248,15 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
// --- create new compacted Connectivity, Locations and Types
int newConnectivitySize = this->Connectivity->GetNumberOfConnectivityEntries();
if ( newCellSize != oldCellSize )
for ( int i = 0; i < oldCellSize - 1; ++i )
if ( this->Types->GetValue( i ) == VTK_EMPTY_CELL )
newConnectivitySize -= this->Locations->GetValue( i+1 ) - this->Locations->GetValue( i );
vtkCellArray *newConnectivity = vtkCellArray::New();
newConnectivity->Initialize();
int oldCellDataSize = this->Connectivity->GetData()->GetSize();
newConnectivity->Allocate(oldCellDataSize);
newConnectivity->Allocate( newConnectivitySize );
vtkUnsignedCharArray *newTypes = vtkUnsignedCharArray::New();
newTypes->Initialize();
@ -262,7 +270,6 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
copyBloc(newTypes, idCellsNewToOld, idNodesOldToNew,
newConnectivity, newLocations, pointsCell );
newConnectivity->Squeeze();
if (vtkDoubleArray* diameters =
vtkDoubleArray::SafeDownCast( vtkDataSet::CellData->GetScalars() )) // Balls