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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 <iostream>
#include "itkQuadEdgeMesh.h"
#include "itkBinaryMask3DMeshSource.h"
#include "itkImageRegionIteratorWithIndex.h"
int itkBinaryMask3DQuadEdgeMeshSourceTest(int, char *[])
{
// Define the dimension of the images
const unsigned int Dimension = 3;
// Declare the types of the output images
typedef itk::Image<unsigned short, Dimension> ImageType;
// Declare the type of the index,size and region to initialize images
typedef itk::Index<Dimension> IndexType;
typedef itk::Size<Dimension> SizeType;
typedef itk::ImageRegion<Dimension> RegionType;
typedef ImageType::PixelType PixelType;
typedef itk::ImageRegionIteratorWithIndex<ImageType> IteratorType;
// Declare the type of the Mesh
typedef itk::QuadEdgeMesh<double, 3> MeshType;
typedef MeshType::PointType PointType;
typedef itk::BinaryMask3DMeshSource< ImageType, MeshType > MeshSourceType;
const PixelType backgroundValue = 0;
const PixelType internalValue = 1;
SizeType size;
size[0] = 128;
size[1] = 128;
size[2] = 128;
IndexType start;
start.Fill(0);
RegionType region;
region.SetSize( size );
region.SetIndex( start );
ImageType::Pointer image = ImageType::New();
image->SetRegions( region );
image->Allocate();
image->FillBuffer( backgroundValue );
IteratorType it( image, region );
it.GoToBegin();
PointType point;
PointType center;
PointType::VectorType radial;
IndexType centralIndex = start;
centralIndex[0] += size[0] / 2;
centralIndex[1] += size[1] / 2;
centralIndex[2] += size[2] / 2;
image->TransformIndexToPhysicalPoint( centralIndex, center );
//
// Create a digitized sphere in the middle of the image.
//
while( !it.IsAtEnd() )
{
image->TransformIndexToPhysicalPoint( it.GetIndex(), point );
radial = point - center;
if ( radial.GetNorm() < 60.0)
{
it.Set( internalValue );
}
++it;
}
MeshSourceType::Pointer meshSource = MeshSourceType::New();
meshSource->SetInput( image );
meshSource->SetObjectValue( internalValue );
try
{
meshSource->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Exception thrown during Update() " << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
std::cout << meshSource->GetNumberOfNodes() << std::endl;
std::cout << meshSource->GetNumberOfCells() << std::endl;
return EXIT_SUCCESS;
}
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