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itkMeshFileTestHelper.h
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itkMeshFileTestHelper.h
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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkMeshFileTestHelper_h
#define itkMeshFileTestHelper_h
/*
* This file is contains helper functions for the ITK MeshIO module testing.
* It should not be considered as part of the toolkit API and it may change at
* any time without notice. We mean it.
*/
#include "itkMeshFileReader.h"
#include "itkMeshFileWriter.h"
#include "itksys/SystemTools.hxx"
template <typename TMesh>
int
TestPointsContainer(typename TMesh::PointsContainerPointer points0, typename TMesh::PointsContainerPointer points1)
{
using MeshType = TMesh;
using PointsContainerConstIterator = typename MeshType::PointsContainerConstIterator;
if (points0.IsNotNull() && points1.IsNotNull())
{
if (points0->Size() != points1->Size())
{
std::cerr << "Input mesh and output mesh have different number of points!" << std::endl;
return EXIT_FAILURE;
}
PointsContainerConstIterator pt0 = points0->Begin();
PointsContainerConstIterator pt1 = points1->Begin();
const double tol = 1e-6;
while ((pt0 != points0->End()) && (pt1 != points1->End()))
{
if (pt0->Index() != pt1->Index())
{
std::cerr << "Input mesh and output mesh are different in points!" << std::endl;
std::cerr << "Input point ID = " << pt0.Index() << std::endl;
std::cerr << "Output point ID = " << pt1.Index() << std::endl;
return EXIT_FAILURE;
}
if (pt0.Value().SquaredEuclideanDistanceTo(pt1.Value()) > tol)
{
std::cerr << "Input mesh and output mesh are different in points!" << std::endl;
std::cerr << "Input point = " << pt0.Value() << std::endl;
std::cerr << "Output point = " << pt1.Value() << std::endl;
return EXIT_FAILURE;
}
++pt0;
++pt1;
}
}
else
{
if (points0 != points1.GetPointer())
{
std::cerr << "Input mesh and output mesh are different in points!" << std::endl;
std::cerr << "points0 = " << points0.GetPointer() << std::endl;
std::cerr << "points1 = " << points1.GetPointer() << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
template <typename TMesh>
int
TestCellsContainer(typename TMesh::CellsContainerPointer cells0, typename TMesh::CellsContainerPointer cells1)
{
using MeshType = TMesh;
using CellsContainerConstIterator = typename MeshType::CellsContainerConstIterator;
using CellPointIdIterator = typename MeshType::CellType::PointIdIterator;
if (cells0.IsNotNull() && cells1.IsNotNull())
{
if (cells0->Size() != cells1->Size())
{
std::cerr << "Input mesh and output mesh have different number of cells!" << std::endl;
return EXIT_FAILURE;
}
CellsContainerConstIterator ceIt0 = cells0->Begin();
CellsContainerConstIterator ceIt1 = cells1->Begin();
while ((ceIt0 != cells0->End()) && (ceIt1 != cells1->End()))
{
if (ceIt0.Value()->GetType() != ceIt1.Value()->GetType())
{
std::cerr << "Input mesh and output mesh are different in cell type!" << std::endl;
return EXIT_FAILURE;
}
if (ceIt0.Index() != ceIt1.Index())
{
std::cerr << "Input mesh and output mesh have different cell IDs" << std::endl;
std::cerr << "Input mesh cell ID: " << ceIt0.Index() << std::endl;
std::cerr << "Output mesh cell ID: " << ceIt1.Index() << std::endl;
return EXIT_FAILURE;
}
CellPointIdIterator pit0 = ceIt0.Value()->PointIdsBegin();
CellPointIdIterator pit1 = ceIt1.Value()->PointIdsBegin();
while (pit0 != ceIt0.Value()->PointIdsEnd())
{
if (*pit0 != *pit1)
{
std::cerr << "Input mesh and output mesh are different in cells!" << std::endl;
return EXIT_FAILURE;
}
++pit0;
++pit1;
}
++ceIt0;
++ceIt1;
}
}
else
{
if (cells0 != cells1.GetPointer())
{
std::cerr << "Input mesh and output mesh are different in cells!" << std::endl;
std::cerr << "cells0 = " << cells0.GetPointer() << std::endl;
std::cerr << "cells1 = " << cells1.GetPointer() << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
template <typename TMesh>
int
TestPointDataContainer(typename TMesh::PointDataContainerPointer pointData0,
typename TMesh::PointDataContainerPointer pointData1)
{
using MeshType = TMesh;
using PointDataContainerIterator = typename MeshType::PointDataContainerIterator;
if (pointData0.IsNotNull() && pointData1.IsNotNull())
{
if (pointData0->Size() != pointData1->Size())
{
std::cerr << "Input mesh and output mesh have different number of point data!" << std::endl;
return EXIT_FAILURE;
}
PointDataContainerIterator pdIt0 = pointData0->Begin();
PointDataContainerIterator pdIt1 = pointData1->Begin();
while ((pdIt0 != pointData0->End()) && (pdIt1 != pointData1->End()))
{
if (pdIt0->Index() != pdIt1->Index())
{
std::cerr << "Input mesh and output mesh are different in point data!" << std::endl;
std::cerr << "Input point ID = " << pdIt0.Index() << std::endl;
std::cerr << "Output point ID = " << pdIt1.Index() << std::endl;
return EXIT_FAILURE;
}
if (itk::Math::NotExactlyEquals(pdIt0.Value(), pdIt1.Value()))
{
std::cerr << "Input mesh and output mesh are different in point data!" << std::endl;
std::cerr << "Input = " << pdIt0.Value() << std::endl;
std::cerr << "Output = " << pdIt1.Value() << std::endl;
return EXIT_FAILURE;
}
++pdIt0;
++pdIt1;
}
}
else
{
if (pointData0 != pointData1.GetPointer())
{
std::cerr << "Input mesh and output mesh are different in point data!" << std::endl;
std::cerr << "pointData0 = " << pointData0.GetPointer() << std::endl;
std::cerr << "pointData1 = " << pointData1.GetPointer() << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
template <typename TMesh>
int
TestCellDataContainer(typename TMesh::CellDataContainerPointer cellData0,
typename TMesh::CellDataContainerPointer cellData1)
{
using MeshType = TMesh;
using CellDataContainerIterator = typename MeshType::CellDataContainerIterator;
if (cellData0.IsNotNull() && cellData1.IsNotNull())
{
if (cellData0->Size() != cellData1->Size())
{
std::cerr << "Input mesh and output mesh have different number of cell data!" << std::endl;
return EXIT_FAILURE;
}
CellDataContainerIterator cdIt0 = cellData0->Begin();
CellDataContainerIterator cdIt1 = cellData1->Begin();
while (cdIt0 != cellData0->End())
{
if (cdIt0->Index() != cdIt1->Index())
{
std::cerr << "Input mesh and output mesh are different in cell data!" << std::endl;
std::cerr << "Input cell ID = " << cdIt0.Index() << std::endl;
std::cerr << "Output cell ID = " << cdIt1.Index() << std::endl;
return EXIT_FAILURE;
}
if (itk::Math::NotExactlyEquals(cdIt0.Value(), cdIt1.Value()))
{
std::cerr << "Input mesh and output mesh are different in cell data!" << std::endl;
std::cerr << "Input = " << cdIt0.Value() << std::endl;
std::cerr << "Output = " << cdIt1.Value() << std::endl;
return EXIT_FAILURE;
}
++cdIt0;
++cdIt1;
}
}
else
{
if (cellData0 != cellData1.GetPointer())
{
std::cerr << "Input mesh and output mesh are different in cell data!" << std::endl;
std::cerr << "pointData0 = " << cellData0.GetPointer() << std::endl;
std::cerr << "pointData1 = " << cellData1.GetPointer() << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
template <typename TMesh>
int
test(char * inputFileName, char * outputFileName, bool isBinary)
{
using MeshType = TMesh;
using MeshFileReaderType = itk::MeshFileReader<MeshType>;
using MeshFileReaderPointer = typename MeshFileReaderType::Pointer;
using MeshFileWriterType = itk::MeshFileWriter<MeshType>;
using MeshFileWriterPointer = typename MeshFileWriterType::Pointer;
MeshFileReaderPointer reader = MeshFileReaderType::New();
reader->SetFileName(inputFileName);
try
{
reader->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cerr << "Read file " << inputFileName << " failed " << std::endl;
std::cerr << err << std::endl;
return EXIT_FAILURE;
}
reader->GetMeshIO()->Print(std::cout);
if (TMesh::PointDimension != reader->GetMeshIO()->GetPointDimension())
{
std::cerr << "Unexpected PointDimension" << std::endl;
return EXIT_FAILURE;
}
MeshFileWriterPointer writer = MeshFileWriterType::New();
if (itksys::SystemTools::GetFilenameLastExtension(inputFileName) ==
itksys::SystemTools::GetFilenameLastExtension(outputFileName))
{
writer->SetMeshIO(reader->GetModifiableMeshIO());
}
writer->SetFileName(outputFileName);
writer->SetInput(reader->GetOutput());
// NOTE ALEX: we should document the usage
if (isBinary)
{
writer->SetFileTypeAsBINARY();
}
try
{
writer->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cerr << "Write file " << outputFileName << " failed " << std::endl;
std::cerr << err << std::endl;
return EXIT_FAILURE;
}
if (!itksys::SystemTools::FilesDiffer(inputFileName, outputFileName))
{
return EXIT_SUCCESS;
}
auto reader1 = MeshFileReaderType::New();
reader1->SetFileName(outputFileName);
try
{
reader1->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cerr << "Read file " << outputFileName << " failed " << std::endl;
std::cerr << err << std::endl;
return EXIT_FAILURE;
}
// Test points
if (TestPointsContainer<MeshType>(reader->GetOutput()->GetPoints(), reader1->GetOutput()->GetPoints()) ==
EXIT_FAILURE)
{
return EXIT_FAILURE;
}
// Test cells
if (TestCellsContainer<MeshType>(reader->GetOutput()->GetCells(), reader1->GetOutput()->GetCells()) == EXIT_FAILURE)
{
return EXIT_FAILURE;
}
// Test point data
if (TestPointDataContainer<MeshType>(reader->GetOutput()->GetPointData(), reader1->GetOutput()->GetPointData()) ==
EXIT_FAILURE)
{
return EXIT_FAILURE;
}
// Test cell data
if (TestCellDataContainer<MeshType>(reader->GetOutput()->GetCellData(), reader1->GetOutput()->GetCellData()) ==
EXIT_FAILURE)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
#endif