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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"
#include "itkVTKPolyDataWriter.h"
#include "itkTestingMacros.h"
#include <iostream>
int
itkVTKPolyDataWriterTest02(int argc, char * argv[])
{
if (argc != 2)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " outputFileName " << std::endl;
return EXIT_FAILURE;
}
using MeshType = itk::Mesh<float, 3>;
using SphereMeshSourceType = itk::RegularSphereMeshSource<MeshType>;
auto mySphereMeshSource = SphereMeshSourceType::New();
using PointType = SphereMeshSourceType::PointType;
using VectorType = SphereMeshSourceType::VectorType;
PointType center;
center.Fill(7.4);
constexpr double radius = 1.5;
const double tolerance = 1e-5;
VectorType scale;
scale.Fill(radius);
mySphereMeshSource->SetCenter(center);
mySphereMeshSource->SetResolution(1);
mySphereMeshSource->SetScale(scale);
mySphereMeshSource->Modified();
ITK_TRY_EXPECT_NO_EXCEPTION(mySphereMeshSource->Update());
std::cout << "mySphereMeshSource: " << mySphereMeshSource;
MeshType::Pointer myMesh = mySphereMeshSource->GetOutput();
PointType pt;
pt.Fill(0.);
bool testPassed = true;
std::cout << "Testing itk::RegularSphereMeshSource " << std::endl;
for (unsigned int i = 0; i < myMesh->GetNumberOfPoints(); ++i)
{
myMesh->GetPoint(i, &pt);
std::cout << "Point[" << i << "]: " << pt << std::endl;
const double distanceToCenter = pt.EuclideanDistanceTo(center);
if (itk::Math::abs(distanceToCenter - radius) > tolerance)
{
std::cerr << "Distance to center " << distanceToCenter;
std::cerr << " is too different from radius " << radius << std::endl;
testPassed = false;
}
}
using CellsContainerPointer = MeshType::CellsContainerPointer;
using CellType = MeshType::CellType;
CellsContainerPointer cells = myMesh->GetCells();
unsigned int faceId = 0;
MeshType::CellsContainerIterator cellsItr = cells->Begin();
while (cellsItr != cells->End())
{
CellType * cellPointer = cellsItr.Value();
if (static_cast<int>(cellPointer->GetType()) != 1)
{
const unsigned int numberOfPoints = cellPointer->GetNumberOfPoints();
std::cout << "Face " << faceId << " has " << numberOfPoints << " points" << std::endl;
if (numberOfPoints != 3)
{
std::cerr << "Face with wrong number of points" << std::endl;
testPassed = false;
}
}
++cellsItr;
++faceId;
}
using WriterType = itk::VTKPolyDataWriter<MeshType>;
auto writer = WriterType::New();
writer->SetInput(myMesh);
writer->SetFileName(argv[1]);
writer->Write();
if (!testPassed)
{
std::cout << "Test FAILED! " << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test PASSED! " << std::endl;
return EXIT_SUCCESS;
}
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