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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkTransformMeshFilterTest.cxx,v $
Language: C++
Date: $Date: 2007-08-10 14:34:02 $
Version: $Revision: 1.10 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <itkTransformMeshFilter.h>
#include <itkMesh.h>
#include <itkAffineTransform.h>
int itkTransformMeshFilterTest(int, char* [] )
{
// Declare the mesh pixel type.
// Those are the values associated
// with each mesh point. (not used on this filter test)
typedef int PixelType;
// Declare the types of the Mesh
// By default it is a 3D mesh using itk::Point<float,3>
// on the vertices, and an itk::VectorContainter
// as containter for points
typedef itk::Mesh<PixelType> MeshType;
// Declare the type for PointsContainer
typedef MeshType::PointsContainer PointsContainerType;
// Declare the type for PointsContainerPointer
typedef MeshType::PointsContainerPointer
PointsContainerPointer;
// Declare the type for Points
typedef MeshType::PointType PointType;
// Create an input Mesh
MeshType::Pointer inputMesh = MeshType::New();
// Insert data on the Mesh
PointsContainerPointer points = inputMesh->GetPoints();
// Fill a cube with points , just to get some data
int n = 1; // let's start with a few of them
PointsContainerType::ElementIdentifier count = 0; // count them
for(int x= -n; x <= n; x++)
{
for(int y= -n; y <= n; y++)
{
for(int z= -n; z <= n; z++)
{
PointType p;
p[0] = x;
p[1] = y;
p[2] = z;
std::cout << "Inserting point # ";
std::cout.width( 3); std::cout << count << " = ";
std::cout.width( 4); std::cout << p[0] << ", ";
std::cout.width( 4); std::cout << p[1] << ", ";
std::cout.width( 4); std::cout << p[2] << std::endl;
points->InsertElement( count, p );
count++;
}
}
}
std::cout << "Input Mesh has " << inputMesh->GetNumberOfPoints();
std::cout << " points " << std::endl;
// Declare the transform type
typedef itk::AffineTransform<float,3> TransformType;
// Declare the type for the filter
typedef itk::TransformMeshFilter<
MeshType,
MeshType,
TransformType > FilterType;
// Create a Filter
FilterType::Pointer filter = FilterType::New();
// Create an Transform
// (it doesn't use smart pointers)
TransformType::Pointer affineTransform = TransformType::New();
affineTransform->Scale( 3.5 );
TransformType::OffsetType::ValueType tInit[3] = {100,200,300};
TransformType::OffsetType translation = tInit;
affineTransform->Translate( translation );
// Connect the inputs
filter->SetInput( inputMesh );
filter->SetTransform( affineTransform );
// Execute the filter
filter->Update();
std::cout << "Filter: " << filter;
// Get the Smart Pointer to the Filter Output
MeshType::Pointer outputMesh = filter->GetOutput();
std::cout << "Output Mesh has " << outputMesh->GetNumberOfPoints();
std::cout << " points " << std::endl;
// Get the the point container
MeshType::PointsContainerPointer
transformedPoints = outputMesh->GetPoints();
PointsContainerType::ConstIterator it = transformedPoints->Begin();
while( it != transformedPoints->End() )
{
PointType p = it.Value();
std::cout.width( 5 ); std::cout << p[0] << ", ";
std::cout.width( 5 ); std::cout << p[1] << ", ";
std::cout.width( 5 ); std::cout << p[2] << std::endl;
++it;
}
// All objects should be automatically destroyed at this point
return EXIT_SUCCESS;
}
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