mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 13:23:51 +00:00
f8f41e0ef5
The enumerations in `vtkm::cont::Field::Association` were renamed in the previous commit. The old names still exist, but are deprecated. Change the rest of the code to use the new names.
108 lines
3.7 KiB
C++
108 lines
3.7 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.
|
|
//============================================================================
|
|
|
|
#include <vtkm/io/VTKRectilinearGridReader.h>
|
|
|
|
#include <vtkm/cont/ArrayCopy.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace io
|
|
{
|
|
|
|
VTKRectilinearGridReader::VTKRectilinearGridReader(const char* fileName)
|
|
: VTKDataSetReaderBase(fileName)
|
|
{
|
|
}
|
|
|
|
VTKRectilinearGridReader::VTKRectilinearGridReader(const std::string& fileName)
|
|
: VTKDataSetReaderBase(fileName)
|
|
{
|
|
}
|
|
|
|
void VTKRectilinearGridReader::Read()
|
|
{
|
|
if (this->DataFile->Structure != vtkm::io::internal::DATASET_RECTILINEAR_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")
|
|
{
|
|
this->ReadGlobalFields();
|
|
this->DataFile->Stream >> tag;
|
|
}
|
|
|
|
// Read structured grid specific meta-data
|
|
internal::parseAssert(tag == "DIMENSIONS");
|
|
vtkm::Id3 dim;
|
|
this->DataFile->Stream >> dim[0] >> dim[1] >> dim[2] >> std::ws;
|
|
|
|
//Read the points.
|
|
std::string fileStorageDataType;
|
|
std::size_t numPoints[3];
|
|
vtkm::cont::UnknownArrayHandle X, Y, Z;
|
|
|
|
this->DataFile->Stream >> tag >> numPoints[0] >> fileStorageDataType >> std::ws;
|
|
if (tag != "X_COORDINATES")
|
|
throw vtkm::io::ErrorIO("X_COORDINATES tag not found");
|
|
|
|
// In binary mode, we must read the data as they are stored in the file.
|
|
// In text mode we can parse as FloatDefault no matter the precision of the storage.
|
|
X = this->DoReadArrayVariant(
|
|
vtkm::cont::Field::Association::Any, fileStorageDataType, numPoints[0], 1);
|
|
|
|
|
|
this->DataFile->Stream >> tag >> numPoints[1] >> fileStorageDataType >> std::ws;
|
|
if (tag != "Y_COORDINATES")
|
|
throw vtkm::io::ErrorIO("Y_COORDINATES tag not found");
|
|
|
|
Y = this->DoReadArrayVariant(
|
|
vtkm::cont::Field::Association::Any, fileStorageDataType, numPoints[1], 1);
|
|
|
|
this->DataFile->Stream >> tag >> numPoints[2] >> fileStorageDataType >> std::ws;
|
|
if (tag != "Z_COORDINATES")
|
|
throw vtkm::io::ErrorIO("Z_COORDINATES tag not found");
|
|
|
|
Z = this->DoReadArrayVariant(
|
|
vtkm::cont::Field::Association::Any, fileStorageDataType, numPoints[2], 1);
|
|
|
|
|
|
if (dim !=
|
|
vtkm::Id3(static_cast<vtkm::Id>(numPoints[0]),
|
|
static_cast<vtkm::Id>(numPoints[1]),
|
|
static_cast<vtkm::Id>(numPoints[2])))
|
|
throw vtkm::io::ErrorIO("DIMENSIONS not equal to number of points");
|
|
|
|
vtkm::cont::ArrayHandleCartesianProduct<vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
|
|
vtkm::cont::ArrayHandle<vtkm::FloatDefault>,
|
|
vtkm::cont::ArrayHandle<vtkm::FloatDefault>>
|
|
coords;
|
|
|
|
// We need to store all coordinate arrays as FloatDefault.
|
|
vtkm::cont::ArrayHandle<vtkm::FloatDefault> Xc, Yc, Zc;
|
|
// But the UnknownArrayHandle has type fileStorageDataType.
|
|
vtkm::cont::ArrayCopyShallowIfPossible(X, Xc);
|
|
vtkm::cont::ArrayCopyShallowIfPossible(Y, Yc);
|
|
vtkm::cont::ArrayCopyShallowIfPossible(Z, Zc);
|
|
|
|
coords = vtkm::cont::make_ArrayHandleCartesianProduct(Xc, Yc, Zc);
|
|
vtkm::cont::CoordinateSystem coordSys("coordinates", coords);
|
|
this->DataSet.AddCoordinateSystem(coordSys);
|
|
this->DataSet.SetCellSet(internal::CreateCellSetStructured(dim));
|
|
|
|
// Read points and cell attributes
|
|
this->ReadAttributes();
|
|
}
|
|
}
|
|
} // namespace vtkm::io
|