894 lines
36 KiB
C++
894 lines
36 KiB
C++
/***************************************************************************
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* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2009 *
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* Copyright (c) Qingfeng Xia (qingfeng.xia at oxford uni) 2017 *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <cstdlib>
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# include <memory>
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# include <cmath>
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# include <map>
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# include <Bnd_Box.hxx>
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# include <BRep_Tool.hxx>
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# include <BRepBndLib.hxx>
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# include <BRepExtrema_DistShapeShape.hxx>
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# include <TopoDS_Vertex.hxx>
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# include <BRepBuilderAPI_MakeVertex.hxx>
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# include <gp_Pnt.hxx>
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#endif
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#include <Base/FileInfo.h>
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#include <Base/TimeInfo.h>
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#include <Base/Console.h>
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#include <Base/Type.h>
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#include <Base/Parameter.h>
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#include <App/Application.h>
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#include <App/Document.h>
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#include <App/DocumentObject.h>
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#include <SMESH_Gen.hxx>
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#include <SMESH_Mesh.hxx>
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#include <SMDS_PolyhedralVolumeOfNodes.hxx>
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#include <SMDS_VolumeTool.hxx>
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#include <SMESHDS_Mesh.hxx>
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# include <TopoDS_Face.hxx>
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# include <TopoDS_Solid.hxx>
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# include <TopoDS_Shape.hxx>
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#include <vtkDataSetReader.h>
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#include <vtkDataSetWriter.h>
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#include <vtkStructuredGrid.h>
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#include <vtkImageData.h>
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#include <vtkRectilinearGrid.h>
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#include <vtkUnstructuredGrid.h>
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#include <vtkXMLUnstructuredGridReader.h>
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#include <vtkXMLUnstructuredGridWriter.h>
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#include <vtkPointData.h>
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#include <vtkCellData.h>
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#include <vtkCellArray.h>
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#include <vtkDataArray.h>
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#include <vtkDoubleArray.h>
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#include <vtkIdList.h>
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#include <vtkCellTypes.h>
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#include <vtkTriangle.h>
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#include <vtkQuad.h>
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#include <vtkQuadraticTriangle.h>
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#include <vtkQuadraticQuad.h>
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#include <vtkTetra.h>
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#include <vtkPyramid.h>
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#include <vtkWedge.h>
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#include <vtkHexahedron.h>
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#include <vtkQuadraticTetra.h>
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#include <vtkQuadraticPyramid.h>
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#include <vtkQuadraticWedge.h>
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#include <vtkQuadraticHexahedron.h>
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#include "FemVTKTools.h"
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#include "FemMeshProperty.h"
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#include "FemAnalysis.h"
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namespace Fem
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{
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template<class TReader> vtkDataSet* readVTKFile(const char*fileName)
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{
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vtkSmartPointer<TReader> reader =
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vtkSmartPointer<TReader>::New();
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reader->SetFileName(fileName);
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reader->Update();
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reader->GetOutput()->Register(reader);
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return vtkDataSet::SafeDownCast(reader->GetOutput());
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}
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template<class TWriter> void writeVTKFile(const char* filename, vtkSmartPointer<vtkUnstructuredGrid> dataset)
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{
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vtkSmartPointer<TWriter> writer =
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vtkSmartPointer<TWriter>::New();
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writer->SetFileName(filename);
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writer->SetInputData(dataset);
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writer->Write();
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}
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void FemVTKTools::importVTKMesh(vtkSmartPointer<vtkDataSet> dataset, FemMesh* mesh, float scale)
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{
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const vtkIdType nPoints = dataset->GetNumberOfPoints();
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const vtkIdType nCells = dataset->GetNumberOfCells();
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Base::Console().Log("%d nodes/points and %d cells/elements found!\n", nPoints, nCells);
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Base::Console().Log("Build SMESH mesh out of the vtk mesh data.\n", nPoints, nCells);
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//vtkSmartPointer<vtkCellArray> cells = dataset->GetCells(); // works only for vtkUnstructuredGrid
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vtkSmartPointer<vtkIdList> idlist= vtkSmartPointer<vtkIdList>::New();
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//Now fill the SMESH datastructure
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SMESH_Mesh* smesh = const_cast<SMESH_Mesh*>(mesh->getSMesh());
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SMESHDS_Mesh* meshds = smesh->GetMeshDS();
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meshds->ClearMesh();
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for(vtkIdType i=0; i<nPoints; i++)
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{
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double* p = dataset->GetPoint(i);
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meshds->AddNodeWithID(p[0]*scale, p[1]*scale, p[2]*scale, i+1);
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}
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for(vtkIdType iCell=0; iCell<nCells; iCell++)
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{
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idlist->Reset();
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idlist = dataset->GetCell(iCell)->GetPointIds();
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vtkIdType *ids = idlist->GetPointer(0);
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switch(dataset->GetCellType(iCell))
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{
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// 2D faces
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case VTK_TRIANGLE: // tria3
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meshds->AddFaceWithID(ids[0]+1, ids[1]+1, ids[2]+1, iCell+1);
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break;
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case VTK_QUADRATIC_TRIANGLE: // tria6
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meshds->AddFaceWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, iCell+1);
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break;
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case VTK_QUAD: // quad4
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meshds->AddFaceWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, iCell+1);
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break;
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case VTK_QUADRATIC_QUAD: // quad8
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meshds->AddFaceWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, iCell+1);
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break;
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// 3D volumes
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case VTK_TETRA: // tetra4
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, iCell+1);
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break;
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case VTK_QUADRATIC_TETRA: // tetra10
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, ids[8]+1, ids[9]+1, iCell+1);
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break;
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case VTK_HEXAHEDRON: // hexa8
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, iCell+1);
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break;
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case VTK_QUADRATIC_HEXAHEDRON: // hexa20
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, ids[8]+1, ids[9]+1,\
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ids[10]+1, ids[11]+1, ids[12]+1, ids[13]+1, ids[14]+1, ids[15]+1, ids[16]+1, ids[17]+1, ids[18]+1, ids[19]+1,\
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iCell+1);
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break;
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case VTK_WEDGE: // penta6
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, iCell+1);
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break;
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case VTK_QUADRATIC_WEDGE: // penta15
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, ids[8]+1, ids[9]+1,\
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ids[10]+1, ids[11]+1, ids[12]+1, ids[13]+1, ids[14]+1,\
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iCell+1);
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break;
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case VTK_PYRAMID: // pyra5
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, iCell+1);
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break;
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case VTK_QUADRATIC_PYRAMID: // pyra13
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meshds->AddVolumeWithID(ids[0]+1, ids[1]+1, ids[2]+1, ids[3]+1, ids[4]+1, ids[5]+1, ids[6]+1, ids[7]+1, ids[8]+1, ids[9]+1,\
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ids[10]+1, ids[11]+1, ids[12]+1,\
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iCell+1);
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break;
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// not handled cases
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default:
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{
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Base::Console().Error("Only common 2D and 3D Cells are supported in VTK mesh import\n");
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break;
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}
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}
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}
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}
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FemMesh* FemVTKTools::readVTKMesh(const char* filename, FemMesh* mesh)
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{
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Base::TimeInfo Start;
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Base::Console().Log("Start: read FemMesh from VTK unstructuredGrid ======================\n");
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Base::FileInfo f(filename);
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if(f.hasExtension("vtu"))
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{
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vtkSmartPointer<vtkDataSet> dataset = readVTKFile<vtkXMLUnstructuredGridReader>(filename);
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importVTKMesh(dataset, mesh);
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}
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else if(f.hasExtension("vtk"))
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{
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vtkSmartPointer<vtkDataSet> dataset = readVTKFile<vtkDataSetReader>(filename);
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importVTKMesh(dataset, mesh);
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}
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else
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{
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Base::Console().Error("file name extension is not supported\n");
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return NULL;
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}
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//Mesh should link to the part feature, in order to set up FemConstraint
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Base::Console().Log(" %f: Done \n",Base::TimeInfo::diffTimeF(Start,Base::TimeInfo()));
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return mesh;
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}
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void exportFemMeshFaces(vtkSmartPointer<vtkUnstructuredGrid> grid, const SMDS_FaceIteratorPtr& aFaceIter)
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{
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Base::Console().Log(" Start: VTK mesh builder faces.\n");
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vtkSmartPointer<vtkCellArray> triangleArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadTriangleArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadQuadArray = vtkSmartPointer<vtkCellArray>::New();
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for (;aFaceIter->more();)
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{
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const SMDS_MeshFace* aFace = aFaceIter->next();
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//triangle
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if(aFace->NbNodes() == 3)
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{
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vtkSmartPointer<vtkTriangle> tria = vtkSmartPointer<vtkTriangle>::New();
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tria->GetPointIds()->SetId(0, aFace->GetNode(0)->GetID()-1);
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tria->GetPointIds()->SetId(1, aFace->GetNode(1)->GetID()-1);
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tria->GetPointIds()->SetId(2, aFace->GetNode(2)->GetID()-1);
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triangleArray->InsertNextCell(tria);
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}
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//quad
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else if(aFace->NbNodes() == 4)
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{
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vtkSmartPointer<vtkQuad> quad = vtkSmartPointer<vtkQuad>::New();
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quad->GetPointIds()->SetId(0, aFace->GetNode(0)->GetID()-1);
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quad->GetPointIds()->SetId(1, aFace->GetNode(1)->GetID()-1);
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quad->GetPointIds()->SetId(2, aFace->GetNode(2)->GetID()-1);
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quad->GetPointIds()->SetId(3, aFace->GetNode(3)->GetID()-1);
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quadArray->InsertNextCell(quad);
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}
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//quadratic triangle
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else if (aFace->NbNodes() == 6)
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{
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vtkSmartPointer<vtkQuadraticTriangle> tria = vtkSmartPointer<vtkQuadraticTriangle>::New();
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tria->GetPointIds()->SetId(0, aFace->GetNode(0)->GetID()-1);
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tria->GetPointIds()->SetId(1, aFace->GetNode(1)->GetID()-1);
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tria->GetPointIds()->SetId(2, aFace->GetNode(2)->GetID()-1);
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tria->GetPointIds()->SetId(3, aFace->GetNode(3)->GetID()-1);
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tria->GetPointIds()->SetId(4, aFace->GetNode(4)->GetID()-1);
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tria->GetPointIds()->SetId(5, aFace->GetNode(5)->GetID()-1);
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quadTriangleArray->InsertNextCell(tria);
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}
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//quadratic quad
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else if(aFace->NbNodes() == 8)
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{
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vtkSmartPointer<vtkQuadraticQuad> quad = vtkSmartPointer<vtkQuadraticQuad>::New();
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quad->GetPointIds()->SetId(0, aFace->GetNode(0)->GetID()-1);
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quad->GetPointIds()->SetId(1, aFace->GetNode(1)->GetID()-1);
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quad->GetPointIds()->SetId(2, aFace->GetNode(2)->GetID()-1);
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quad->GetPointIds()->SetId(3, aFace->GetNode(3)->GetID()-1);
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quad->GetPointIds()->SetId(4, aFace->GetNode(4)->GetID()-1);
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quad->GetPointIds()->SetId(5, aFace->GetNode(5)->GetID()-1);
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quad->GetPointIds()->SetId(6, aFace->GetNode(6)->GetID()-1);
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quad->GetPointIds()->SetId(7, aFace->GetNode(7)->GetID()-1);
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quadQuadArray->InsertNextCell(quad);
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}
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else
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{
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throw std::runtime_error("Face not yet supported by FreeCAD's VTK mesh builder\n");
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}
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}
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if(triangleArray->GetNumberOfCells()>0)
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grid->SetCells(VTK_TRIANGLE, triangleArray);
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if(quadArray->GetNumberOfCells()>0)
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grid->SetCells(VTK_QUAD, quadArray);
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if(quadTriangleArray->GetNumberOfCells()>0)
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grid->SetCells(VTK_QUADRATIC_TRIANGLE, quadTriangleArray);
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if(quadQuadArray->GetNumberOfCells()>0)
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grid->SetCells(VTK_QUADRATIC_QUAD, quadQuadArray);
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Base::Console().Log(" End: VTK mesh builder faces.\n");
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}
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void exportFemMeshCells(vtkSmartPointer<vtkUnstructuredGrid> grid, const SMDS_VolumeIteratorPtr& aVolIter)
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{
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Base::Console().Log(" Start: VTK mesh builder volumes.\n");
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vtkSmartPointer<vtkCellArray> tetraArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> pyramidArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> wedgeArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> hexaArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadTetraArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadPyramidArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadWedgeArray = vtkSmartPointer<vtkCellArray>::New();
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vtkSmartPointer<vtkCellArray> quadHexaArray = vtkSmartPointer<vtkCellArray>::New();
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for (;aVolIter->more();)
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{
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const SMDS_MeshVolume* aVol = aVolIter->next();
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if (aVol->NbNodes() == 4) { // tetra4
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Base::Console().Log(" Volume tetra4\n");
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vtkSmartPointer<vtkTetra> cell = vtkSmartPointer<vtkTetra>::New();
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cell->GetPointIds()->SetId(0, aVol->GetNode(0)->GetID()-1);
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cell->GetPointIds()->SetId(1, aVol->GetNode(1)->GetID()-1);
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cell->GetPointIds()->SetId(2, aVol->GetNode(2)->GetID()-1);
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cell->GetPointIds()->SetId(3, aVol->GetNode(3)->GetID()-1);
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tetraArray->InsertNextCell(cell);
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}
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else if (aVol->NbNodes() == 5) { // pyra5
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Base::Console().Log(" Volume pyra5\n");
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vtkSmartPointer<vtkPyramid> cell = vtkSmartPointer<vtkPyramid>::New();
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cell->GetPointIds()->SetId(0, aVol->GetNode(0)->GetID()-1);
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cell->GetPointIds()->SetId(1, aVol->GetNode(1)->GetID()-1);
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cell->GetPointIds()->SetId(2, aVol->GetNode(2)->GetID()-1);
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cell->GetPointIds()->SetId(3, aVol->GetNode(3)->GetID()-1);
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cell->GetPointIds()->SetId(4, aVol->GetNode(4)->GetID()-1);
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pyramidArray->InsertNextCell(cell);
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}
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else if (aVol->NbNodes() == 6) { // penta6
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Base::Console().Log(" Volume penta6\n");
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vtkSmartPointer<vtkWedge> cell = vtkSmartPointer<vtkWedge>::New();
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cell->GetPointIds()->SetId(0, aVol->GetNode(0)->GetID()-1);
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cell->GetPointIds()->SetId(1, aVol->GetNode(1)->GetID()-1);
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cell->GetPointIds()->SetId(2, aVol->GetNode(2)->GetID()-1);
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cell->GetPointIds()->SetId(3, aVol->GetNode(3)->GetID()-1);
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cell->GetPointIds()->SetId(4, aVol->GetNode(4)->GetID()-1);
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cell->GetPointIds()->SetId(5, aVol->GetNode(5)->GetID()-1);
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wedgeArray->InsertNextCell(cell);
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}
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else if (aVol->NbNodes() == 8) { // hexa8
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Base::Console().Log(" Volume hexa8\n");
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vtkSmartPointer<vtkHexahedron> cell = vtkSmartPointer<vtkHexahedron>::New();
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cell->GetPointIds()->SetId(0, aVol->GetNode(0)->GetID()-1);
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cell->GetPointIds()->SetId(1, aVol->GetNode(1)->GetID()-1);
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cell->GetPointIds()->SetId(2, aVol->GetNode(2)->GetID()-1);
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cell->GetPointIds()->SetId(3, aVol->GetNode(3)->GetID()-1);
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cell->GetPointIds()->SetId(4, aVol->GetNode(4)->GetID()-1);
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cell->GetPointIds()->SetId(5, aVol->GetNode(5)->GetID()-1);
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cell->GetPointIds()->SetId(6, aVol->GetNode(6)->GetID()-1);
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cell->GetPointIds()->SetId(7, aVol->GetNode(7)->GetID()-1);
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hexaArray->InsertNextCell(cell);
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}
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else if (aVol->NbNodes() == 10) { // tetra10
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Base::Console().Log(" Volume tetra10\n");
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vtkSmartPointer<vtkQuadraticTetra> tetra = vtkSmartPointer<vtkQuadraticTetra>::New();
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for(int i=0; i<10; i++){
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tetra->GetPointIds()->SetId(i, aVol->GetNode(i)->GetID()-1);
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}
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quadTetraArray->InsertNextCell(tetra);
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}
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else if (aVol->NbNodes() == 13) { // pyra13
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Base::Console().Log(" Volume pyra13\n");
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vtkSmartPointer<vtkQuadraticPyramid> cell = vtkSmartPointer<vtkQuadraticPyramid>::New();
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for(int i=0; i<13; i++){
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cell->GetPointIds()->SetId(i, aVol->GetNode(i)->GetID()-1);
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// Base::Console().Log("node ids: %i\n", aVol->GetNode(i)->GetID()-1);
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}
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quadPyramidArray->InsertNextCell(cell);
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}
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else if (aVol->NbNodes() == 15) { // penta15
|
|
Base::Console().Log(" Volume penta15\n");
|
|
vtkSmartPointer<vtkQuadraticWedge> cell = vtkSmartPointer<vtkQuadraticWedge>::New();
|
|
for(int i=0; i<15; i++){
|
|
cell->GetPointIds()->SetId(i, aVol->GetNode(i)->GetID()-1);
|
|
}
|
|
quadWedgeArray->InsertNextCell(cell);
|
|
}
|
|
else if (aVol->NbNodes() == 20) { // hexa20
|
|
Base::Console().Log(" Volume hexa20\n");
|
|
vtkSmartPointer<vtkQuadraticHexahedron> cell = vtkSmartPointer<vtkQuadraticHexahedron>::New();
|
|
for(int i=0; i<20; i++){
|
|
cell->GetPointIds()->SetId(i, aVol->GetNode(i)->GetID()-1);
|
|
}
|
|
quadHexaArray->InsertNextCell(cell);
|
|
}
|
|
else {
|
|
throw std::runtime_error("Volume not yet supported by FreeCAD's VTK mesh builder\n");
|
|
}
|
|
}
|
|
|
|
if(tetraArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_TETRA, tetraArray);
|
|
|
|
if(pyramidArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_PYRAMID, pyramidArray);
|
|
|
|
if(wedgeArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_WEDGE, wedgeArray);
|
|
|
|
if(hexaArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_HEXAHEDRON, hexaArray);
|
|
|
|
if(quadTetraArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_QUADRATIC_TETRA, quadTetraArray);
|
|
|
|
if(quadPyramidArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_QUADRATIC_PYRAMID, quadPyramidArray);
|
|
|
|
if(quadWedgeArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_QUADRATIC_WEDGE, quadWedgeArray);
|
|
|
|
if(quadHexaArray->GetNumberOfCells()>0)
|
|
grid->SetCells(VTK_QUADRATIC_HEXAHEDRON, quadHexaArray);
|
|
|
|
Base::Console().Log(" End: VTK mesh builder volumes.\n");
|
|
}
|
|
|
|
void FemVTKTools::exportVTKMesh(const FemMesh* mesh, vtkSmartPointer<vtkUnstructuredGrid> grid, float scale)
|
|
{
|
|
|
|
Base::Console().Message("Start: VTK mesh builder ======================\n");
|
|
SMESH_Mesh* smesh = const_cast<SMESH_Mesh*>(mesh->getSMesh());
|
|
SMESHDS_Mesh* meshDS = smesh->GetMeshDS();
|
|
|
|
// nodes
|
|
Base::Console().Message(" Start: VTK mesh builder nodes.\n");
|
|
|
|
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
|
|
SMDS_NodeIteratorPtr aNodeIter = meshDS->nodesIterator();
|
|
|
|
while (aNodeIter->more()) {
|
|
const SMDS_MeshNode* node = aNodeIter->next(); // why float, not double?
|
|
double coords[3] = {double(node->X()*scale), double(node->Y()*scale), double(node->Z()*scale)};
|
|
points->InsertPoint(node->GetID()-1, coords); // memory is allocated by VTK points size = max node id, points will be inserted in SMESH point gaps too
|
|
}
|
|
grid->SetPoints(points);
|
|
// nodes debugging
|
|
const SMDS_MeshInfo& info = meshDS->GetMeshInfo();
|
|
Base::Console().Message(" Size of nodes in SMESH grid: %i.\n", info.NbNodes());
|
|
const vtkIdType nNodes = grid->GetNumberOfPoints();
|
|
Base::Console().Message(" Size of nodes in VTK grid: %i.\n", nNodes);
|
|
Base::Console().Message(" End: VTK mesh builder nodes.\n");
|
|
|
|
// faces
|
|
SMDS_FaceIteratorPtr aFaceIter = meshDS->facesIterator();
|
|
exportFemMeshFaces(grid, aFaceIter);
|
|
|
|
// volumes
|
|
SMDS_VolumeIteratorPtr aVolIter = meshDS->volumesIterator();
|
|
exportFemMeshCells(grid, aVolIter);
|
|
|
|
Base::Console().Message("End: VTK mesh builder ======================\n");
|
|
}
|
|
|
|
void FemVTKTools::writeVTKMesh(const char* filename, const FemMesh* mesh)
|
|
{
|
|
|
|
Base::TimeInfo Start;
|
|
Base::Console().Message("Start: write FemMesh from VTK unstructuredGrid ======================\n");
|
|
Base::FileInfo f(filename);
|
|
|
|
vtkSmartPointer<vtkUnstructuredGrid> grid = vtkSmartPointer<vtkUnstructuredGrid>::New();
|
|
exportVTKMesh(mesh, grid);
|
|
//vtkSmartPointer<vtkDataSet> dataset = vtkDataSet::SafeDownCast(grid);
|
|
Base::Console().Message("Start: writing mesh data ======================\n");
|
|
if(f.hasExtension("vtu")){
|
|
writeVTKFile<vtkXMLUnstructuredGridWriter>(filename, grid);
|
|
}
|
|
else if(f.hasExtension("vtk")){
|
|
writeVTKFile<vtkDataSetWriter>(filename, grid);
|
|
}
|
|
else{
|
|
Base::Console().Error("file name extension is not supported to write VTK\n");
|
|
}
|
|
|
|
Base::Console().Message(" %f: Done \n",Base::TimeInfo::diffTimeF(Start, Base::TimeInfo()));
|
|
}
|
|
|
|
|
|
App::DocumentObject* getObjectByType(const Base::Type type)
|
|
{
|
|
App::Document* pcDoc = App::GetApplication().getActiveDocument();
|
|
if(!pcDoc)
|
|
{
|
|
Base::Console().Message("No active document is found thus created\n");
|
|
pcDoc = App::GetApplication().newDocument();
|
|
}
|
|
App::DocumentObject* obj = pcDoc->getActiveObject();
|
|
|
|
if(obj->getTypeId() == type)
|
|
{
|
|
return obj;
|
|
}
|
|
if(obj->getTypeId() == FemAnalysis::getClassTypeId())
|
|
{
|
|
std::vector<App::DocumentObject*> fem = (static_cast<FemAnalysis*>(obj))->Group.getValues();
|
|
for (std::vector<App::DocumentObject*>::iterator it = fem.begin(); it != fem.end(); ++it) {
|
|
if ((*it)->getTypeId().isDerivedFrom(type))
|
|
return static_cast<App::DocumentObject*>(*it); // return the first of that type
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
App::DocumentObject* createObjectByType(const Base::Type type)
|
|
{
|
|
App::Document* pcDoc = App::GetApplication().getActiveDocument();
|
|
if(!pcDoc)
|
|
{
|
|
Base::Console().Message("No active document is found thus created\n");
|
|
pcDoc = App::GetApplication().newDocument();
|
|
}
|
|
App::DocumentObject* obj = pcDoc->getActiveObject();
|
|
|
|
if(obj->getTypeId() == FemAnalysis::getClassTypeId())
|
|
{
|
|
App::DocumentObject* newobj = pcDoc->addObject(type.getName());
|
|
static_cast<FemAnalysis*>(obj)->addObject(newobj);
|
|
return newobj;
|
|
}
|
|
else
|
|
{
|
|
return pcDoc->addObject(type.getName()); // create in the acitive document
|
|
}
|
|
|
|
}
|
|
|
|
|
|
App::DocumentObject* FemVTKTools::readResult(const char* filename, App::DocumentObject* res)
|
|
{
|
|
Base::TimeInfo Start;
|
|
Base::Console().Log("Start: read FemResult with FemMesh from VTK file ======================\n");
|
|
Base::FileInfo f(filename);
|
|
|
|
vtkSmartPointer<vtkDataSet> ds;
|
|
if(f.hasExtension("vtu"))
|
|
{
|
|
ds = readVTKFile<vtkXMLUnstructuredGridReader>(filename);
|
|
}
|
|
else if(f.hasExtension("vtk"))
|
|
{
|
|
ds = readVTKFile<vtkDataSetReader>(filename);
|
|
}
|
|
else
|
|
{
|
|
Base::Console().Error("file name extension is not supported\n");
|
|
}
|
|
|
|
App::Document* pcDoc = App::GetApplication().getActiveDocument();
|
|
if(!pcDoc)
|
|
{
|
|
Base::Console().Message("No active document is found thus created\n");
|
|
pcDoc = App::GetApplication().newDocument();
|
|
}
|
|
App::DocumentObject* obj = pcDoc->getActiveObject();
|
|
|
|
vtkSmartPointer<vtkDataSet> dataset = ds;
|
|
App::DocumentObject* result = NULL;
|
|
if(!res)
|
|
result = res;
|
|
else
|
|
{
|
|
Base::Console().Log("FemResultObject pointer is NULL, trying to get the active object\n");
|
|
if(obj->getTypeId() == Base::Type::fromName("Fem::FemResultObjectPython"))
|
|
result = obj;
|
|
else
|
|
{
|
|
Base::Console().Log("the active object is not the correct type, do nothing\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
App::DocumentObject* mesh = pcDoc->addObject("Fem::FemMeshObject", "ResultMesh");
|
|
FemMesh* fmesh = new FemMesh(); // PropertyFemMesh instance is responsible to release FemMesh ??
|
|
importVTKMesh(dataset, fmesh);
|
|
static_cast<PropertyFemMesh*>(mesh->getPropertyByName("FemMesh"))->setValue(*fmesh);
|
|
static_cast<App::PropertyLink*>(result->getPropertyByName("Mesh"))->setValue(mesh);
|
|
// PropertyLink is the property type to store DocumentObject pointer
|
|
|
|
//vtkSmartPointer<vtkPointData> pd = dataset->GetPointData();
|
|
importFreeCADResult(dataset, result);
|
|
|
|
pcDoc->recompute();
|
|
Base::Console().Log(" %f: Done \n", Base::TimeInfo::diffTimeF(Start, Base::TimeInfo()));
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
void FemVTKTools::writeResult(const char* filename, const App::DocumentObject* res) {
|
|
if (!res)
|
|
{
|
|
App::Document* pcDoc = App::GetApplication().getActiveDocument();
|
|
if(!pcDoc)
|
|
{
|
|
Base::Console().Message("No active document is found thus do nothing and return\n");
|
|
return;
|
|
}
|
|
res = pcDoc->getActiveObject(); //type checking is done by caller
|
|
}
|
|
if(!res) {
|
|
Base::Console().Error("Result object pointer is invalid and it is not active object");
|
|
return;
|
|
}
|
|
|
|
Base::TimeInfo Start;
|
|
Base::Console().Message("Start: write FemResult to VTK unstructuredGrid dataset =======\n");
|
|
Base::FileInfo f(filename);
|
|
|
|
// mesh
|
|
vtkSmartPointer<vtkUnstructuredGrid> grid = vtkSmartPointer<vtkUnstructuredGrid>::New();
|
|
App::DocumentObject* mesh = static_cast<App::PropertyLink*>(res->getPropertyByName("Mesh"))->getValue();
|
|
const FemMesh& fmesh = static_cast<PropertyFemMesh*>(mesh->getPropertyByName("FemMesh"))->getValue();
|
|
FemVTKTools::exportVTKMesh(&fmesh, grid);
|
|
|
|
Base::Console().Message(" %f: vtk mesh builder finished\n",Base::TimeInfo::diffTimeF(Start, Base::TimeInfo()));
|
|
|
|
// result
|
|
FemVTKTools::exportFreeCADResult(res, grid);
|
|
|
|
//vtkSmartPointer<vtkDataSet> dataset = vtkDataSet::SafeDownCast(grid);
|
|
if(f.hasExtension("vtu")){
|
|
writeVTKFile<vtkXMLUnstructuredGridWriter>(filename, grid);
|
|
}
|
|
else if(f.hasExtension("vtk")){
|
|
writeVTKFile<vtkDataSetWriter>(filename, grid);
|
|
}
|
|
else{
|
|
Base::Console().Error("file name extension is not supported to write VTK\n");
|
|
}
|
|
|
|
Base::Console().Message(" %f: writing result object to vtk finished\n",Base::TimeInfo::diffTimeF(Start, Base::TimeInfo()));
|
|
}
|
|
|
|
// it is an internal utility func to avoid code duplication
|
|
void _calcStat(const std::vector<Base::Vector3d>& vel, std::vector<double>& stats) {
|
|
vtkIdType nPoints = vel.size();
|
|
double vmin=1.0e100, vmean=0.0, vmax=-1.0e100;
|
|
//stat of Vx, Vy, Vz is not necessary
|
|
double vmins[3] = {1.0e100, 1.0e100, 1.0e100}; // set up a very big positive float then reduce it
|
|
double vmeans[3] = {0.0, 0.0, 0.0};
|
|
double vmaxs[3] = {-1.0e100, -1.0e100, -1.0e100};
|
|
for(std::vector<Base::Vector3d>::const_iterator it=vel.begin(); it!=vel.end(); ++it) {
|
|
double p[] = {it->x, it->y, it->z};
|
|
double vmag = std::sqrt(p[0]*p[0] + p[1]*p[1] + p[2]*p[2]);
|
|
for(int ii=0; ii<3; ii++) {
|
|
vmeans[ii] += p[ii];
|
|
if(p[ii] > vmaxs[ii]) vmaxs[ii] = p[ii];
|
|
if(p[ii] < vmins[ii]) vmins[ii] = p[ii];
|
|
}
|
|
vmean += vmag;
|
|
if(vmag > vmax) vmax = vmag;
|
|
if(vmag < vmin) vmin = vmag;
|
|
}
|
|
|
|
for(int ii=0; ii<3; ii++) {
|
|
stats[ii*3] = vmins[ii];
|
|
stats[ii*3 + 2] = vmaxs[ii];
|
|
stats[ii*3 + 1] = vmeans[ii]/nPoints;
|
|
}
|
|
int index = 3; // velocity mag or displacement mag
|
|
stats[index*3] = vmin;
|
|
stats[index*3 + 2] = vmax;
|
|
stats[index*3 + 1] = vmean/nPoints;
|
|
}
|
|
|
|
|
|
void FemVTKTools::importFreeCADResult(vtkSmartPointer<vtkDataSet> dataset, App::DocumentObject* result) {
|
|
|
|
// see src/Mod/Fem/femobjects/_FemResultMechanical
|
|
// App::PropertyVectorList will be a list of vectors in vtk
|
|
std::vector<std::string> vectors = {
|
|
"DisplacementVectors",
|
|
"StressVectors",
|
|
"StrainVectors"
|
|
};
|
|
// App::PropertyFloatList will be a list of scalars in vtk
|
|
std::vector<std::string> scalars = {
|
|
"Peeq",
|
|
"DisplacementLengths",
|
|
"StressValues",
|
|
"PrincipalMax",
|
|
"PrincipalMed",
|
|
"PrincipalMin",
|
|
"MaxShear",
|
|
"MassFlowRate",
|
|
"NetworkPressure",
|
|
"UserDefined",
|
|
"Temperature"
|
|
};
|
|
|
|
std::map<std::string, int> varids;
|
|
// id sequence must agree with definition in get_result_stats() of Fem/_TaskPanelResultShow.py
|
|
varids["U1"] = 0; // U1, displacement x axis
|
|
varids["U2"] = 1;
|
|
varids["U3"] = 2;
|
|
varids["Uabs"] = 3;
|
|
varids["StressValues"] = 4; // Sabs
|
|
varids["PrincipalMax"] = 5; // MaxPrin
|
|
varids["PrincipalMed"] = 6; // MidPrin
|
|
varids["PrincipalMin"] = 7; // MinPrin
|
|
varids["MaxShear"] = 8; //
|
|
|
|
|
|
const int max_var_index = 11;
|
|
// all code below can be shared!
|
|
std::vector<double> stats(3*max_var_index, 0.0);
|
|
|
|
double ts = 0.0; // t=0.0 for static simulation
|
|
static_cast<App::PropertyFloat*>(result->getPropertyByName("Time"))->setValue(ts);
|
|
|
|
vtkSmartPointer<vtkPointData> pd = dataset->GetPointData();
|
|
if(pd->GetNumberOfArrays() == 0) {
|
|
Base::Console().Error("No point data array is found in vtk data set, do nothing\n");
|
|
// if pointData is empty, data may be in cellDate, cellData -> pointData interpolation is possible in VTK
|
|
return;
|
|
}
|
|
|
|
// NodeNumbers
|
|
const vtkIdType nPoints = dataset->GetNumberOfPoints();
|
|
std::vector<long> nodeIds(nPoints);
|
|
for(vtkIdType i=0; i<nPoints; ++i) {
|
|
nodeIds[i] = i+1;
|
|
}
|
|
static_cast<App::PropertyIntegerList*>(result->getPropertyByName("NodeNumbers"))->setValues(nodeIds);
|
|
Base::Console().Message(" NodeNumbers have been filled with values.\n");
|
|
|
|
// vectors
|
|
int dim = 3; // Fixme: currently 3D only
|
|
for (std::vector<std::string>::iterator it = vectors.begin(); it != vectors.end(); ++it ) {
|
|
vtkDataArray* vector_field = vtkDataArray::SafeDownCast(pd->GetArray(it->c_str()));
|
|
if(vector_field && vector_field->GetNumberOfComponents() == dim) {
|
|
App::PropertyVectorList* vector_list = static_cast<App::PropertyVectorList*>(result->getPropertyByName(it->c_str()));
|
|
if(vector_list) {
|
|
std::vector<Base::Vector3d> vec(nPoints);
|
|
for(vtkIdType i=0; i<nPoints; ++i) {
|
|
double *p = vector_field->GetTuple(i); // both vtkFloatArray and vtkDoubleArray return double* for GetTuple(i)
|
|
vec[i] = (Base::Vector3d(p[0], p[1], p[2]));
|
|
}
|
|
//PropertyVectorList will not show up in PropertyEditor
|
|
vector_list->setValues(vec);
|
|
Base::Console().Message("PropertyVectorList %s has been loaded \n", it->c_str());
|
|
}
|
|
else {
|
|
Base::Console().Error("static_cast<App::PropertyVectorList*>((result->getPropertyByName(\"%s\")) failed \n", it->c_str());
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
// scalars
|
|
for (std::vector<std::string>::iterator it = scalars.begin(); it != scalars.end(); ++it ) {
|
|
vtkDataArray* vec = vtkDataArray::SafeDownCast(pd->GetArray(it->c_str()));
|
|
if(nPoints && vec && vec->GetNumberOfComponents() == 1) {
|
|
App::PropertyFloatList* field = static_cast<App::PropertyFloatList*>(result->getPropertyByName(it->c_str()));
|
|
if (!field) {
|
|
Base::Console().Error("static_cast<App::PropertyFloatList*>((result->getPropertyByName(\"%s\")) failed \n", it->c_str());
|
|
continue;
|
|
}
|
|
|
|
double vmin=1.0e100, vmean=0.0, vmax=-1.0e100;
|
|
std::vector<double> values(nPoints, 0.0);
|
|
for(vtkIdType i = 0; i < vec->GetNumberOfTuples(); i++) {
|
|
double v = *(vec->GetTuple(i));
|
|
values[i] = v;
|
|
vmean += v;
|
|
if(v > vmax) vmax = v;
|
|
if(v < vmin) vmin = v;
|
|
}
|
|
field->setValues(values);
|
|
|
|
if(varids.find(*it) != varids.end()) {
|
|
const int index = varids.at(*it);
|
|
stats[index*3] = vmin;
|
|
stats[index*3 + 1] = vmean/nPoints;
|
|
stats[index*3 + 2] = vmax;
|
|
}
|
|
|
|
Base::Console().Message("field \"%s\" has been loaded \n", it->c_str());
|
|
}
|
|
}
|
|
static_cast<App::PropertyFloatList*>(result->getPropertyByName("Stats"))->setValues(stats);
|
|
|
|
}
|
|
|
|
|
|
void FemVTKTools::exportFreeCADResult(const App::DocumentObject* result, vtkSmartPointer<vtkDataSet> grid) {
|
|
Base::Console().Message("Start: Create VTK result data from FreeCAD result data.\n");
|
|
|
|
// see src/Mod/Fem/femobjects/_FemResultMechanical
|
|
// App::PropertyVectorList will be a list of vectors in vtk
|
|
std::vector<std::string> vectors = {
|
|
"DisplacementVectors",
|
|
"StressVectors",
|
|
"StrainVectors"
|
|
};
|
|
// App::PropertyFloatList will be a list of scalars in vtk
|
|
std::vector<std::string> scalars = {
|
|
"Peeq",
|
|
"DisplacementLengths",
|
|
"StressValues",
|
|
"PrincipalMax",
|
|
"PrincipalMed",
|
|
"PrincipalMin",
|
|
"MaxShear",
|
|
"MassFlowRate",
|
|
"NetworkPressure",
|
|
"UserDefined",
|
|
"Temperature"
|
|
};
|
|
|
|
const Fem::FemResultObject* res = static_cast<const Fem::FemResultObject*>(result);
|
|
const vtkIdType nPoints = grid->GetNumberOfPoints();
|
|
|
|
// vectors
|
|
for (std::vector<std::string>::iterator it = vectors.begin(); it != vectors.end(); ++it ) {
|
|
const int dim=3; //Fixme, detect dim
|
|
App::PropertyVectorList* field = nullptr;
|
|
if (res->getPropertyByName(it->c_str()))
|
|
field = static_cast<App::PropertyVectorList*>(res->getPropertyByName(it->c_str()));
|
|
else
|
|
Base::Console().Error("PropertyVectorList %s not found \n", it->c_str());
|
|
if (field && field->getSize() > 0) {
|
|
if (nPoints != field->getSize())
|
|
Base::Console().Error("Size of PropertyVectorList = %d, not equal to vtk mesh node count %d \n", field->getSize(), nPoints);
|
|
const std::vector<Base::Vector3d>& vel = field->getValues();
|
|
vtkSmartPointer<vtkDoubleArray> data = vtkSmartPointer<vtkDoubleArray>::New();
|
|
data->SetNumberOfComponents(dim);
|
|
data->SetNumberOfTuples(vel.size());
|
|
data->SetName(it->c_str());
|
|
|
|
vtkIdType i=0;
|
|
for (std::vector<Base::Vector3d>::const_iterator it=vel.begin(); it!=vel.end(); ++it) {
|
|
double tuple[] = {it->x, it->y, it->z};
|
|
data->SetTuple(i, tuple);
|
|
++i;
|
|
}
|
|
grid->GetPointData()->AddArray(data);
|
|
Base::Console().Message(" Info: PropertyVectorList %s exported as vtk array name '%s'\n", it->c_str(), it->c_str());
|
|
}
|
|
else
|
|
Base::Console().Message(" Info: PropertyVectorList %s NOT exported to vtk, because size is: %i\n", it->c_str(), field->getSize());
|
|
}
|
|
|
|
// scalars
|
|
for (std::vector<std::string>::iterator it = scalars.begin(); it != scalars.end(); ++it ) {
|
|
App::PropertyFloatList* field = nullptr;
|
|
if (res->getPropertyByName(it->c_str()))
|
|
field = static_cast<App::PropertyFloatList*>(res->getPropertyByName(it->c_str()));
|
|
else
|
|
Base::Console().Error("PropertyFloatList %s not found \n", it->c_str());
|
|
if (field && field->getSize() > 0) {
|
|
if (nPoints != field->getSize())
|
|
Base::Console().Error("Size of PropertyFloatList = %d, not equal to vtk mesh node count %d \n", field->getSize(), nPoints);
|
|
const std::vector<double>& vec = field->getValues();
|
|
vtkSmartPointer<vtkDoubleArray> data = vtkSmartPointer<vtkDoubleArray>::New();
|
|
data->SetNumberOfValues(vec.size());
|
|
data->SetName(it->c_str());
|
|
|
|
for (size_t i=0; i<vec.size(); ++i)
|
|
data->SetValue(i, vec[i]);
|
|
|
|
grid->GetPointData()->AddArray(data);
|
|
Base::Console().Message(" Info: PropertyFloatList %s exported as vtk array name '%s'\n", it->c_str(), it->c_str());
|
|
}
|
|
else
|
|
Base::Console().Message(" Info: PropertyFloatList %s NOT exported to vtk, because size is: %i\n", it->c_str(), field->getSize());
|
|
}
|
|
|
|
Base::Console().Message("End: Create VTK result data from FreeCAD result data.\n");
|
|
}
|
|
|
|
} // namespace
|