mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 10:35:42 +00:00
c3a3184d51
Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2015 UT-Battelle, LLC.
|
|
// Copyright 2015 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-NA0003525 with NTESS,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
#ifndef vtk_m_io_reader_VTKUnstructuredGridReader_h
|
|
#define vtk_m_io_reader_VTKUnstructuredGridReader_h
|
|
|
|
#include <vtkm/io/reader/VTKDataSetReaderBase.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace io
|
|
{
|
|
namespace reader
|
|
{
|
|
|
|
VTKM_SILENCE_WEAK_VTABLE_WARNING_START
|
|
|
|
class VTKUnstructuredGridReader : public VTKDataSetReaderBase
|
|
{
|
|
public:
|
|
explicit VTKUnstructuredGridReader(const char* fileName)
|
|
: VTKDataSetReaderBase(fileName)
|
|
{
|
|
}
|
|
|
|
private:
|
|
virtual void Read()
|
|
{
|
|
if (this->DataFile->Structure != vtkm::io::internal::DATASET_UNSTRUCTURED_GRID)
|
|
{
|
|
throw vtkm::io::ErrorIO("Incorrect DataSet type");
|
|
}
|
|
|
|
//We need to be able to handle VisIt files which dump Field data
|
|
//at the top of a VTK file
|
|
std::string tag;
|
|
this->DataFile->Stream >> tag;
|
|
if (tag == "FIELD")
|
|
{
|
|
std::string name;
|
|
this->ReadFields(name);
|
|
this->DataFile->Stream >> tag;
|
|
}
|
|
|
|
// Read the points
|
|
internal::parseAssert(tag == "POINTS");
|
|
this->ReadPoints();
|
|
|
|
vtkm::Id numPoints = this->DataSet.GetCoordinateSystem().GetData().GetNumberOfValues();
|
|
|
|
// Read the cellset
|
|
vtkm::cont::ArrayHandle<vtkm::Id> connectivity;
|
|
vtkm::cont::ArrayHandle<vtkm::IdComponent> numIndices;
|
|
vtkm::cont::ArrayHandle<vtkm::UInt8> shapes;
|
|
|
|
this->DataFile->Stream >> tag;
|
|
internal::parseAssert(tag == "CELLS");
|
|
|
|
this->ReadCells(connectivity, numIndices);
|
|
this->ReadShapes(shapes);
|
|
|
|
vtkm::cont::ArrayHandle<vtkm::Id> permutation;
|
|
vtkm::io::internal::FixupCellSet(connectivity, numIndices, shapes, permutation);
|
|
this->SetCellsPermutation(permutation);
|
|
|
|
//DRP
|
|
if (false) //vtkm::io::internal::IsSingleShape(shapes))
|
|
{
|
|
vtkm::cont::CellSetSingleType<> cellSet("cells");
|
|
cellSet.Fill(numPoints,
|
|
shapes.GetPortalConstControl().Get(0),
|
|
numIndices.GetPortalConstControl().Get(0),
|
|
connectivity);
|
|
this->DataSet.AddCellSet(cellSet);
|
|
}
|
|
else
|
|
{
|
|
vtkm::cont::CellSetExplicit<> cellSet("cells");
|
|
cellSet.Fill(numPoints, shapes, numIndices, connectivity);
|
|
this->DataSet.AddCellSet(cellSet);
|
|
}
|
|
|
|
// Read points and cell attributes
|
|
this->ReadAttributes();
|
|
}
|
|
};
|
|
|
|
VTKM_SILENCE_WEAK_VTABLE_WARNING_END
|
|
}
|
|
}
|
|
} // namespace vtkm::io:reader
|
|
|
|
#endif // vtk_m_io_reader_VTKUnstructuredGridReader_h
|