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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkChainCodePathTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
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 <iostream>
#include "itkChainCodePath.h"
int itkChainCodePathTest(int, char*[])
{
typedef itk::ChainCodePath<2> PathType;
typedef PathType::IndexType IndexType;
typedef PathType::OffsetType OffsetType;
typedef PathType::ChainCodeType ChainCodeType;
bool passed = true;
IndexType index;
OffsetType offset;
PathType::Pointer path = PathType::New();
index[0]=3;
index[1]=5;
path->SetStart(index);
offset[0]=0; offset[1]=1; path->InsertStep(0, offset);
offset[0]=1; offset[1]=1; path->InsertStep(1, offset);
offset[0]=1; offset[1]=0; path->InsertStep(2, offset);
offset[0]=1; offset[1]=-1; path->InsertStep(3, offset);
offset[0]=0; offset[1]=-1; path->InsertStep(4, offset);
offset[0]=-1; offset[1]=-1; path->InsertStep(5, offset);
offset[0]=-1; offset[1]=0; path->InsertStep(6, offset);
offset[0]=-1; offset[1]=1; path->InsertStep(7, offset);
std::cout << "Path is " << path->NumberOfSteps() << " steps" << std::endl;
offset[0]=0; offset[1]=-1;
path->InsertStep(3,offset); // insert new step 3
offset = path->Evaluate(3);
std::cout <<"Inserted new step[3] = "<<offset<<std::endl;
offset[0]=1; offset[1]=0;
path->ChangeStep(4,offset); // rotate the down-right step (now step 4) CCW
offset = path->Evaluate(4);
std::cout <<"Changed step[4] to "<<offset<<std::endl;
std::cout << "Path is " << path->NumberOfSteps() << " steps" << std::endl;
if( path->NumberOfSteps() != 9 )
{
passed = false;
}
index=path->GetStart();
std::cout <<"Starting at index "<<index << std::endl;
for(unsigned int input=0;;)
{
offset=path->IncrementInput(input);
if( offset[0] || offset[1] )
{
index=path->EvaluateToIndex(input);
std::cout <<"Step["<<input-1<<"] is "<<offset;
std::cout <<"\t to index "<<index << std::endl;
}
else
break;
}
if( index != path->GetStart() )
{
passed = false;
}
if (passed)
{
std::cout << "ChainCode tests passed" << std::endl;
return EXIT_SUCCESS;
}
else
{
std::cout << "ChainCode tests failed" << std::endl;
return EXIT_FAILURE;
}
}
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