ITK  4.8.0
Insight Segmentation and Registration Toolkit
SphinxExamples/src/Filtering/FastMarching/ComputeGeodesicDistanceOnMesh/Code.cxx
int main( int argc, char* argv[] )
{
if( argc != 3 )
{
std::cerr << "Usage: " << argv[0] << std::endl;
std::cerr << " <input filename> <output filename>" << std::endl;
return EXIT_FAILURE;
}
typedef float PixelType;
typedef double CoordType;
const unsigned int Dimension = 3;
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
> Traits;
typedef itk::MeshFileReader< MeshType > ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
FastMarchingType;
MeshType::Pointer mesh = reader->GetOutput();
MeshType::PointsContainerConstPointer points =
mesh->GetPoints();
MeshType::PointsContainerConstIterator pIt = points->Begin();
MeshType::PointsContainerConstIterator pEnd = points->End();
while( pIt != pEnd )
{
mesh->SetPointData( pIt->Index(), 1. );
++pIt;
}
typedef FastMarchingType::NodePairType NodePairType;
typedef FastMarchingType::NodePairContainerType NodePairContainerType;
NodePairContainerType::Pointer trial = NodePairContainerType::New();
NodePairType nodePair( 0, 0. );
trial->push_back( nodePair );
CriterionType;
CriterionType::Pointer criterion = CriterionType::New();
criterion->SetThreshold( 100. );
FastMarchingType::Pointer fmmFilter = FastMarchingType::New();
fmmFilter->SetInput( mesh );
fmmFilter->SetTrialPoints( trial );
fmmFilter->SetStoppingCriterion( criterion );
typedef itk::MeshFileWriter< MeshType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( fmmFilter->GetOutput() );
writer->SetFileName( argv[2] );
try
{
writer->Update();
}
catch( itk::ExceptionObject & error )
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}