-// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
// 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
{}
-SMESH_ExtractGeometry::~SMESH_ExtractGeometry(){}
-
+SMESH_ExtractGeometry::~SMESH_ExtractGeometry()
+{}
-vtkIdType SMESH_ExtractGeometry::GetElemObjId(int theVtkID){
- if( theVtkID < 0 || theVtkID >= myElemVTK2ObjIds.size()) return -1;
+vtkIdType SMESH_ExtractGeometry::GetElemObjId(int theVtkID)
+{
+ if( theVtkID < 0 || theVtkID >= (int)myElemVTK2ObjIds.size()) return -1;
return myElemVTK2ObjIds[theVtkID];
}
-vtkIdType SMESH_ExtractGeometry::GetNodeObjId(int theVtkID){
- if ( theVtkID < 0 || theVtkID >= myNodeVTK2ObjIds.size()) return -1;
+vtkIdType SMESH_ExtractGeometry::GetNodeObjId(int theVtkID)
+{
+ if ( theVtkID < 0 || theVtkID >= (int)myNodeVTK2ObjIds.size()) return -1;
return myNodeVTK2ObjIds[theVtkID];
}
-int SMESH_ExtractGeometry::RequestData(
- vtkInformation *vtkNotUsed(request),
- vtkInformationVector **inputVector,
- vtkInformationVector *outputVector)
+int SMESH_ExtractGeometry::RequestData(vtkInformation *vtkNotUsed(request),
+ vtkInformationVector **inputVector,
+ vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// get the input and ouptut
- vtkDataSet *input = vtkDataSet::SafeDownCast(
- inInfo->Get(vtkDataObject::DATA_OBJECT()));
- vtkUnstructuredGrid *output = vtkUnstructuredGrid::SafeDownCast(
- outInfo->Get(vtkDataObject::DATA_OBJECT()));
+ vtkDataSet *input =
+ vtkDataSet::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
+ vtkUnstructuredGrid *output =
+ vtkUnstructuredGrid::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkIdType ptId, numPts, numCells, i, cellId, newCellId, newId, *pointMap;
vtkIdList *cellPts;
int npts;
numCells = input->GetNumberOfCells();
numPts = input->GetNumberOfPoints();
-
+
vtkDebugMacro(<< "Extracting geometry");
if ( ! this->ImplicitFunction )
- {
+ {
vtkErrorMacro(<<"No implicit function specified");
return 0;
- }
+ }
newCellPts = vtkIdList::New();
newCellPts->Allocate(VTK_CELL_SIZE);
if ( this->ExtractInside )
- {
+ {
multiplier = 1.0;
- }
- else
- {
+ }
+ else
+ {
multiplier = -1.0;
- }
+ }
// Loop over all points determining whether they are inside the
// implicit function. Copy the points and point data if they are.
//
pointMap = new vtkIdType[numPts]; // maps old point ids into new
for (i=0; i < numPts; i++)
- {
+ {
pointMap[i] = -1;
- }
+ }
output->Allocate(numCells/4); //allocate storage for geometry/topology
newPts = vtkPoints::New();
outputPD->CopyAllocate(pd);
outputCD->CopyAllocate(cd);
vtkFloatArray *newScalars = NULL;
-
+
if(myStoreMapping){
myElemVTK2ObjIds.clear();
myElemVTK2ObjIds.reserve(numCells);
}
if ( ! this->ExtractBoundaryCells )
- {
+ {
for ( ptId=0; ptId < numPts; ptId++ )
- {
+ {
x = input->GetPoint(ptId);
if ( (this->ImplicitFunction->FunctionValue(x)*multiplier) < 0.0 )
- {
+ {
newId = newPts->InsertNextPoint(x);
pointMap[ptId] = newId;
myNodeVTK2ObjIds.push_back(ptId);
outputPD->CopyData(pd,ptId,newId);
- }
}
}
+ }
else
- {
+ {
// To extract boundary cells, we have to create supplemental information
if ( this->ExtractBoundaryCells )
- {
+ {
double val;
newScalars = vtkFloatArray::New();
newScalars->SetNumberOfValues(numPts);
for (ptId=0; ptId < numPts; ptId++ )
- {
+ {
x = input->GetPoint(ptId);
val = this->ImplicitFunction->FunctionValue(x) * multiplier;
newScalars->SetValue(ptId, val);
if ( val < 0.0 )
- {
+ {
newId = newPts->InsertNextPoint(x);
pointMap[ptId] = newId;
myNodeVTK2ObjIds.push_back(ptId);
outputPD->CopyData(pd,ptId,newId);
- }
}
}
}
+ }
// Now loop over all cells to see whether they are inside implicit
// function (or on boundary if ExtractBoundaryCells is on).
//
for (cellId=0; cellId < numCells; cellId++)
- {
+ {
cell = input->GetCell(cellId);
cellPts = cell->GetPointIds();
numCellPts = cell->GetNumberOfPoints();
newCellPts->Reset();
if ( ! this->ExtractBoundaryCells ) //requires less work
- {
+ {
for ( npts=0, i=0; i < numCellPts; i++, npts++)
- {
+ {
ptId = cellPts->GetId(i);
if ( pointMap[ptId] < 0 )
- {
+ {
break; //this cell won't be inserted
- }
+ }
else
- {
+ {
newCellPts->InsertId(i,pointMap[ptId]);
- }
}
- } //if don't want to extract boundary cells
-
+ }
+ } //if don't want to extract boundary cells
+
else //want boundary cells
- {
+ {
for ( npts=0, i=0; i < numCellPts; i++ )
- {
+ {
ptId = cellPts->GetId(i);
if ( newScalars->GetValue(ptId) <= 0.0 )
- {
+ {
npts++;
- }
}
+ }
if ( npts > 0 )
- {
+ {
for ( i=0; i < numCellPts; i++ )
- {
+ {
ptId = cellPts->GetId(i);
if ( pointMap[ptId] < 0 )
- {
+ {
x = input->GetPoint(ptId);
newId = newPts->InsertNextPoint(x);
pointMap[ptId] = newId;
myNodeVTK2ObjIds.push_back(ptId);
outputPD->CopyData(pd,ptId,newId);
- }
- newCellPts->InsertId(i,pointMap[ptId]);
}
- }//a boundary or interior cell
- }//if mapping boundary cells
-
- if ( npts >= numCellPts || (this->ExtractBoundaryCells && npts > 0) )
- {
- if(cell->GetCellType() == VTK_POLYHEDRON) {
- newCellPts->Reset();
- vtkUnstructuredGrid::SafeDownCast(input)->GetFaceStream( cellId ,newCellPts );
- vtkUnstructuredGrid::ConvertFaceStreamPointIds(newCellPts, pointMap);
+ newCellPts->InsertId(i,pointMap[ptId]);
}
- newCellId = output->InsertNextCell(cell->GetCellType(),newCellPts);
- myElemVTK2ObjIds.push_back(cellId);
- outputCD->CopyData(cd,cellId,newCellId);
+ }//a boundary or interior cell
+ }//if mapping boundary cells
+
+ if ( npts >= numCellPts || (this->ExtractBoundaryCells && npts > 0) )
+ {
+ if(cell->GetCellType() == VTK_POLYHEDRON) {
+ newCellPts->Reset();
+ vtkUnstructuredGrid::SafeDownCast(input)->GetFaceStream( cellId ,newCellPts );
+ vtkUnstructuredGrid::ConvertFaceStreamPointIds(newCellPts, pointMap);
}
- }//for all cells
+ newCellId = output->InsertNextCell(cell->GetCellType(),newCellPts);
+ myElemVTK2ObjIds.push_back(cellId);
+ outputCD->CopyData(cd,cellId,newCellId);
+ }
+ }//for all cells
// Update ourselves and release memory
//
newCellPts->Delete();
output->SetPoints(newPts);
newPts->Delete();
-
+
if ( this->ExtractBoundaryCells )
- {
+ {
newScalars->Delete();
- }
+ }
output->Squeeze();
return 1;
