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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 "itkFastMarchingThresholdStoppingCriterion.h"
#include "itkMeshFileWriter.h"
int
itkFastMarchingQuadEdgeMeshFilterBaseTest3(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>;
using PointsContainer = MeshType::PointsContainer;
using PointsContainerPointer = PointsContainer::Pointer;
using PointDataContainer = MeshType::PointDataContainer;
using PointDataContainerPointer = PointDataContainer::Pointer;
// Let's create here a plane!
auto plane = MeshType::New();
PointsContainerPointer points = PointsContainer::New();
PointDataContainerPointer pointdata = PointDataContainer::New();
points->Reserve(100);
pointdata->Reserve(100);
MeshType::PointType p;
p.Fill(0.);
int k = 0;
for (int i = 0; i < 10; ++i)
{
for (int j = 0; j < 10; ++j)
{
p[1] = static_cast<CoordType>(j);
if ((k % 2 == 0) && (i != 0) && (j != 0))
{
auto exp = static_cast<CoordType>(k / 2);
CoordType delta = 0.1 * std::pow(-1., exp);
p[0] += delta;
p[1] += delta;
}
else
{
p[0] = static_cast<CoordType>(i);
}
points->SetElement(k, p);
pointdata->SetElement(k, 1.);
k++;
}
}
plane->SetPoints(points);
plane->SetPointData(pointdata);
k = 0;
for (int i = 0; i < 9; ++i)
{
for (int j = 0; j < 9; ++j)
{
plane->AddFaceTriangle(k, k + 1, k + 11);
plane->AddFaceTriangle(k, k + 11, k + 10);
k++;
}
k++;
}
using NodePairType = FastMarchingType::NodePairType;
// using NodeContainerType = FastMarchingType::NodeContainerType;
using NodePairContainerType = FastMarchingType::NodePairContainerType;
auto trial = NodePairContainerType::New();
NodePairType node_pair(0, 0.);
trial->push_back(node_pair);
using CriterionType = itk::FastMarchingThresholdStoppingCriterion<MeshType, MeshType>;
auto criterion = CriterionType::New();
criterion->SetThreshold(100.);
auto fmm_filter = FastMarchingType::New();
fmm_filter->SetInput(plane);
fmm_filter->SetTrialPoints(trial);
fmm_filter->SetStoppingCriterion(criterion);
try
{
fmm_filter->Update();
}
catch (const itk::ExceptionObject & excep)
{
std::cerr << "Exception caught !" << std::endl;
std::cerr << excep << std::endl;
return EXIT_FAILURE;
}
MeshType::Pointer output = fmm_filter->GetOutput();
PointDataContainerPointer output_data = output->GetPointData();
PointDataContainer::ConstIterator o_data_it = output_data->Begin();
PointDataContainer::ConstIterator o_data_end = output_data->End();
PointsContainer::ConstIterator p_it = points->Begin();
p.Fill(0.);
bool error = false;
while (o_data_it != o_data_end)
{
PixelType expected_value = p.EuclideanDistanceTo(p_it->Value());
if ((o_data_it->Value() - expected_value) > 5. * expected_value / 100.)
{
std::cout << "** k = " << k << std::endl;
std::cout << o_data_it->Value() << " != " << expected_value << std::endl;
error = true;
}
++p_it;
++o_data_it;
}
if (error)
{
return EXIT_FAILURE;
}
using WriterType = itk::MeshFileWriter<MeshType>;
auto writer = WriterType::New();
writer->SetInput(fmm_filter->GetOutput());
writer->SetFileName("itkFastMarchingQuadEdgeMeshFilterBaseTest3.vtk");
writer->Update();
return EXIT_SUCCESS;
}
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