/usr/include/ITK-4.5/itkPolyLineParametricPath.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 __itkPolyLineParametricPath_h
#define __itkPolyLineParametricPath_h
#include "itkParametricPath.h"
#include "itkVectorContainer.h"
#include "itkIndex.h"
namespace itk
{
/** \class PolyLineParametricPath
* \brief Represent a path of line segments through ND Space
*
* This class is intended to represent parametric paths through an image, where
* the paths are composed of line segments. Each line segment traverses one
* unit of input. A classic application of this class is the representation of
* contours in 2D images, especially when the contours only need to be
* approximately correct. Another use of a path is to guide the movement of an
* iterator through an image.
*
* \sa EllipseParametricPath
* \sa FourierSeriesPath
* \sa OrthogonallyCorrectedParametricPath
* \sa ParametricPath
* \sa ChainCodePath
* \sa Path
* \sa ContinuousIndex
* \sa Index
* \sa Offset
* \sa Vector
*
* \ingroup PathObjects
* \ingroup ITKPath
*
* \wiki
* \wikiexample{Curves/PolyLineParametricPath,A data structure for a piece-wise linear curve}
* \endwiki
*/
template< unsigned int VDimension >
class PolyLineParametricPath:public
ParametricPath< VDimension >
{
public:
/** Standard class typedefs. */
typedef PolyLineParametricPath Self;
typedef ParametricPath< VDimension > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(PolyLineParametricPath, ParametricPath);
/** Input type */
typedef typename Superclass::InputType InputType;
/** Output type */
typedef typename Superclass::OutputType OutputType;
/** Basic data-structure types used */
typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
typedef Index< VDimension > IndexType;
typedef Offset< VDimension > OffsetType;
typedef Point< double, VDimension > PointType;
typedef Vector< double, VDimension > VectorType;
typedef ContinuousIndexType VertexType;
typedef VectorContainer< unsigned, VertexType > VertexListType;
typedef typename VertexListType::Pointer VertexListPointer;
/** Return the location of the parametric path at the specified location. */
virtual OutputType Evaluate(const InputType & input) const;
///** Evaluate the first derivative of the ND output with respect to the 1D
// * input. This is an exact, algebraic function. */
//virtual VectorType EvaluateDerivative(const InputType & input) const;
/** Add a vertex (and a connecting line segment to the previous vertex).
* Adding a vertex has the additional effect of extending the domain of the
* PolyLineParametricPath by 1.0 (each pair of consecutive verticies is
* separated by one unit of input). */
inline void AddVertex(const ContinuousIndexType & vertex)
{
m_VertexList->InsertElement(m_VertexList->Size(), vertex);
this->Modified();
}
/** Where does the path end? This value is necessary for IncrementInput() to
* know how to go to the end of a path. Since each line segment covers one
* unit of input, this is the number of verticies - 1. */
virtual inline InputType EndOfInput() const
{
return m_VertexList->Size() - 1;
}
/** New() method for dynamic construction */
itkNewMacro(Self);
/** Needed for Pipelining */
virtual void Initialize(void)
{
m_VertexList->Initialize();
}
/** Return the container of Vertices as a const object. */
itkGetModifiableObjectMacro(VertexList, VertexListType);
/** This function overrides the superclass IncrementInput and calculates
* the next pixel along the path to visit by using the instantaneous
* partial derivatives to calculate the timestep needed to move along the
* path by one pixel */
virtual OffsetType IncrementInput(InputType & input) const;
/** This function overrides the superclass EvaluateDerivative and instead
* calculates the instantaneous derivative of input by taking the index
* of the previous and next integral timepoints and subtracting them */
virtual VectorType EvaluateDerivative(const InputType & input) const;
protected:
PolyLineParametricPath();
~PolyLineParametricPath(){}
void PrintSelf(std::ostream & os, Indent indent) const;
private:
PolyLineParametricPath(const Self &); //purposely not implemented
void operator=(const Self &); //purposely not implemented
VertexListPointer m_VertexList;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkPolyLineParametricPath.hxx"
#endif
#endif
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