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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.
*
*=========================================================================*/
#include "itkRegularSphereMeshSource.h"
int
itkRegularSphereMeshSourceTest2(int, char *[])
{
constexpr unsigned int Dimension = 3;
using PixelType = float;
using MeshType = itk::Mesh<PixelType, Dimension>;
using SphereMeshSourceType = itk::RegularSphereMeshSource<MeshType>;
SphereMeshSourceType::VectorType scale;
scale[0] = 1.;
scale[1] = 2.;
scale[2] = 3.;
auto source1 = SphereMeshSourceType::New();
source1->SetResolution(1);
source1->SetScale(scale);
source1->Update();
MeshType::Pointer mesh1 = source1->GetOutput();
if (mesh1->GetCellsAllocationMethod() !=
itk::MeshEnums::MeshClassCellsAllocationMethod::CellsAllocatedDynamicallyCellByCell)
{
std::cerr << "mesh1->GetCellsAllocationMethod() != MeshType::CellsAllocatedDynamicallyCellByCell" << std::endl;
return EXIT_FAILURE;
}
auto source2 = SphereMeshSourceType::New();
source2->SetResolution(2);
source2->SetScale(scale);
source2->Update();
MeshType::Pointer mesh2 = source2->GetOutput();
mesh2->Graft(mesh1);
MeshType::PointsContainerConstPointer points = mesh2->GetPoints();
MeshType::PointsContainerConstIterator it = points->Begin();
MeshType::PointsContainerConstIterator end = points->End();
MeshType::PointType center = source2->GetCenter();
SphereMeshSourceType::VectorType scale2 = source2->GetScale();
if ((scale2 - scale).GetNorm() != 0.)
{
std::cerr << "scale2 != scale" << std::endl;
return EXIT_FAILURE;
}
while (it != end)
{
const MeshType::PointType p = it->Value();
double d = 0.0;
for (unsigned int dim = 0; dim < Dimension; ++dim)
{
d += (center[dim] - p[dim]) * (center[dim] - p[dim]) / (scale[dim] * scale[dim]);
}
if (itk::Math::abs(d - 1.) > 1e-6)
{
std::cerr << "too much deviation for vertex " << it->Index() << std::endl;
std::cerr << "distance: " << d << std::endl;
return EXIT_FAILURE;
}
++it;
}
return EXIT_SUCCESS;
}
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