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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 "itkFastMarchingQuadEdgeMeshFilterBase.h"
#include "itkQuadEdgeMeshExtendedTraits.h"
#include "itkRegularSphereMeshSource.h"
#include "itkFastMarchingNumberOfElementsStoppingCriterion.h"
#include "itkTestingMacros.h"
int
itkFastMarchingQuadEdgeMeshFilterWithNumberOfElementsTest(int, char *[])
{
using PixelType = float;
using CoordType = double;
constexpr unsigned int Dimension = 3;
using Traits = itk::QuadEdgeMeshExtendedTraits<PixelType, // type of data for vertices
Dimension, // geometrical dimension of space
2, // Mac topological dimension of a cell
CoordType, // type for point coordinate
CoordType, // type for interpolation weight
PixelType, // type of data for cell
bool, // type of data for primal edges
bool // type of data for dual edges
>;
using MeshType = itk::QuadEdgeMesh<PixelType, Dimension, Traits>;
using FastMarchingType = itk::FastMarchingQuadEdgeMeshFilterBase<MeshType, MeshType>;
MeshType::PointType center;
center.Fill(0.);
using SphereSourceType = itk::RegularSphereMeshSource<MeshType>;
auto sphere_filter = SphereSourceType::New();
sphere_filter->SetCenter(center);
sphere_filter->SetResolution(5);
sphere_filter->Update();
MeshType::Pointer sphere_output = sphere_filter->GetOutput();
MeshType::PointsContainerConstPointer points = sphere_output->GetPoints();
MeshType::PointsContainerConstIterator p_it = points->Begin();
MeshType::PointsContainerConstIterator p_end = points->End();
while (p_it != p_end)
{
sphere_output->SetPointData(p_it->Index(), 1.);
++p_it;
}
using NodePairType = FastMarchingType::NodePairType;
// using NodeContainerType = FastMarchingType::NodeContainerType;
using NodePairContainerType = FastMarchingType::NodePairContainerType;
auto trial = NodePairContainerType::New();
NodePairType node_pair(0, 1.);
trial->push_back(node_pair);
using CriterionType = itk::FastMarchingNumberOfElementsStoppingCriterion<MeshType, MeshType>;
auto criterion = CriterionType::New();
criterion->SetTargetNumberOfElements(100);
auto fmm_filter = FastMarchingType::New();
fmm_filter->SetInput(sphere_output);
fmm_filter->SetTrialPoints(trial);
fmm_filter->SetStoppingCriterion(criterion);
ITK_TRY_EXPECT_NO_EXCEPTION(fmm_filter->Update());
MeshType::Pointer output = fmm_filter->GetOutput();
MeshType::PointDataContainerPointer pointdata = output->GetPointData();
MeshType::PointDataContainerIterator it = pointdata->Begin();
unsigned int counter = 0;
while (it != pointdata->End())
{
if (it->Value() > 0.)
{
++counter;
}
++it;
}
unsigned int expectedMinPointCount = 100;
if (counter < expectedMinPointCount)
{
std::cerr << "Test failed!" << std::endl;
std::cerr << "Error in itk::FastMarchingQuadEdgeMeshFilterBase" << std::endl;
std::cerr << "Expected min point count: " << expectedMinPointCount << ", but got: " << counter << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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