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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 "itkConnectedRegionsMeshFilter.h"
#include "itkSphereMeshSource.h"
#include <iostream>
/*
* Test the mesh connectivity class.
*/
int itkExtractMeshConnectedRegionsTest(int, char* [])
{
/**
* Some typedefs to make things easier.
*/
typedef itk::Mesh< int > MeshType;
typedef itk::ConnectedRegionsMeshFilter<MeshType,MeshType> ConnectFilterType;
typedef itk::Point<float,3> PointType;
// Define a simple mesh of three connected pieces. The mesh consists
// of several different cell types.
MeshType::Pointer inMesh = MeshType::New();
// Pass the mesh through the filter in a variety of ways.
//
PointType::ValueType pInit[3] = {1,2,3};
PointType p = pInit;
ConnectFilterType::Pointer connect = ConnectFilterType::New();
connect->SetInput(inMesh);
connect->SetClosestPoint(p);
connect->AddSeed(0);
connect->InitializeSeedList();
connect->AddSeed(1);
connect->AddSeed(2);
connect->DeleteSeed(1);
connect->Update();
// Test with each of the extraction modes
connect->SetExtractionModeToAllRegions();
connect->Update();
connect->SetExtractionModeToCellSeededRegions();
connect->Update();
connect->SetExtractionModeToClosestPointRegion();
connect->Update();
connect->SetExtractionModeToLargestRegion();
connect->Update();
connect->SetExtractionModeToPointSeededRegions();
connect->Update();
connect->SetExtractionModeToSpecifiedRegions();
connect->Update();
// Create a Sphere for running the filter on real input data.
typedef itk::SphereMeshSource< MeshType > SphereMeshSourceType;
SphereMeshSourceType::Pointer meshSource = SphereMeshSourceType::New();
PointType center; center.Fill(0);
PointType::ValueType scaleInit[3] = {1,1,1};
PointType scale = scaleInit;
meshSource->SetCenter(center);
meshSource->SetResolutionX( 10 );
meshSource->SetResolutionY( 10 );
meshSource->SetScale(scale);
meshSource->Modified();
meshSource->Update();
connect->SetInput( meshSource->GetOutput() );
try
{
connect->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Exception caught " << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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