/usr/include/ITK-4.5/itkChainCodePath.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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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.
*
*=========================================================================*/
#ifndef __itkChainCodePath_h
#define __itkChainCodePath_h
#include "itkPath.h"
#include "itkOffset.h"
#include "itkObjectFactory.h"
#include <vector>
namespace itk
{
/** \class ChainCodePath
* \brief Represent a path as a sequence of connected image index offsets
*
* This class is intended to represent sequences of connected indices in an
* image. It does so by storing the offset of each index from its immediately
* preceding, connected, index. The only image index stored directly is that
* of the first index. ChainCodePath maps a 1D integer input (step number) to
* an ND integer output (either an offset or an image index, depending on
* whether Evaluate or EvaluateToIndex is called).
*
* \sa ChainCodePath2D
* \sa ParametricPath
* \sa Path
* \sa Index
* \sa Offset
*
* \ingroup PathObjects
* \ingroup ITKPath
*/
template< unsigned int VDimension >
class ChainCodePath:public
Path< unsigned int, Offset< VDimension >, VDimension >
{
public:
/** Dimension underlying input image. */
itkStaticConstMacro(Dimension, unsigned int, VDimension);
/** Standard class typedefs. */
typedef ChainCodePath< VDimension > Self;
typedef Path< unsigned int, Offset< VDimension >, VDimension > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(ChainCodePath, Path);
/** OutputType typedef support. */
typedef typename Superclass::OutputType OutputType;
typedef typename Superclass::InputType InputType;
/** The output type of this function is an Index */
typedef OutputType OffsetType;
typedef Index< VDimension > IndexType;
typedef std::vector< OffsetType > ChainCodeType;
typedef typename ChainCodeType::size_type ChainCodeSizeType;
// Functions inherited from Path
/** Evaluate the chaincode for the offset at the specified path-position. */
virtual OutputType Evaluate(const InputType & input) const
{
return m_Chain[input];
}
/** Like Evaluate(), but returns the index at the specified path-position. */
virtual IndexType EvaluateToIndex(const InputType & input) const;
/** Increment the input variable passed by reference and then return the
* offset stored at the new path-position. If the chaincode is unable to be
* incremented, input is not changed and an offset of zero is returned, which
* may be used to check for the end of the chain code. */
virtual OffsetType IncrementInput(InputType & input) const;
/** Where does the path end (what is the last valid input value)? */
virtual inline InputType EndOfInput() const
{
return NumberOfSteps(); // 0 is before the first step, 1 is after it
}
/** New() method for dynamic construction */
itkNewMacro(Self);
/** Set/Get the index associated with the initial position of the path */
itkSetMacro(Start, IndexType);
itkGetConstReferenceMacro(Start, IndexType);
/** Insert a new step into the chaincode at a specified position */
virtual inline void InsertStep(InputType position, OffsetType step)
{
m_Chain.insert(m_Chain.begin() + position, step);
this->Modified();
}
/** Change the direction of a step in the chaincode */
virtual inline void ChangeStep(InputType position, OffsetType step)
{
m_Chain[position] = step;
this->Modified();
}
/** Remove all steps from the chain code */
virtual inline void Clear()
{
m_Chain.clear();
this->Modified();
}
/** How many steps in the chaincode? */
virtual inline ChainCodeSizeType NumberOfSteps() const
{
return m_Chain.size();
}
/** Needed for Pipelining */
virtual void Initialize(void)
{
m_Start = this->GetZeroIndex();
this->Clear();
}
protected:
ChainCodePath();
~ChainCodePath() {}
void PrintSelf(std::ostream & os, Indent indent) const;
private:
ChainCodePath(const Self &); //purposely not implemented
void operator=(const Self &); //purposely not implemented
IndexType m_Start; // origin image index for the path
ChainCodeType m_Chain; // the chain code (vector of offsets)
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkChainCodePath.hxx"
#endif
#endif
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