/usr/include/vtk-7.1/vtkImagePointIterator.h is in libvtk7-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkImagePointIterator.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/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 notice for more information.
=========================================================================*/
/**
* @class vtkImagePointIterator
* @brief iterate over all data points in an image.
*
* This class will iterate over an image. For each position, it provides
* the (x,y,z) position, the (I,J,K) index, and the point Id. If a stencil
* is provided, then it also reports, for each point, whether the point is
* inside the stencil.
* <p>The iterator can go through the image point-by-point or span-by-span.
* The Next() method advances to the next point, while the NextSpan() method
* skips to the beginning of the next span, where a span is defined as a
* start position and point count within an image row.
* @sa
* vtkImageData vtkImageStencilData vtkImageProgressIterator
*/
#ifndef vtkImagePointIterator_h
#define vtkImagePointIterator_h
#include "vtkImagePointDataIterator.h"
class VTKIMAGINGCORE_EXPORT vtkImagePointIterator :
public vtkImagePointDataIterator
{
public:
/**
* Default constructor, its use must be followed by Initialize().
*/
vtkImagePointIterator();
/**
* Create an iterator for the given image, with several options.
* If a stencil is provided, then the iterator's IsInStencil() method
* reports whether each span is inside the stencil. If an extent is
* provided, it iterates over the extent and ignores the rest of the
* image (the provided extent must be within the image extent). If
* a pointer to the algorithm is provided, then progress events will
* provided by the algorithm if threadId is zero.
*/
vtkImagePointIterator(vtkImageData *image,
const int extent[6] = 0,
vtkImageStencilData *stencil=0,
vtkAlgorithm *algorithm=0,
int threadId=0);
/**
* Initialize an iterator. See constructor for more details.
*/
void Initialize(vtkImageData *image,
const int extent[6] = 0,
vtkImageStencilData *stencil=0,
vtkAlgorithm *algorithm=0,
int threadId=0);
//@{
/**
* Move the iterator to the beginning of the next span.
* A span is a contiguous region of the image over which nothing but
* the point Id and the X index changes.
*/
void NextSpan()
{
this->vtkImagePointDataIterator::NextSpan();
this->UpdatePosition();
}
//@}
//@{
/**
* Move to the next position (rather than directly to the next span).
* This will automatically advance to the next span if the end of the
* current span is reached.
*/
void Next()
{
if (++(this->Id) == this->SpanEnd)
{
this->NextSpan();
}
else
{
this->Index[0]++;
this->Position[0] = this->Origin[0] + this->Index[0]*this->Spacing[0];
}
}
//@}
/**
* Test if the iterator has completed iterating over the entire extent.
*/
bool IsAtEnd()
{
return this->vtkImagePointDataIterator::IsAtEnd();
}
/**
* Get the current position.
*/
double *GetPosition()
{
return this->Position;
}
//@{
/**
* Get the current position and place it in the provided array.
*/
void GetPosition(double x[3])
{
x[0] = this->Position[0];
x[1] = this->Position[1];
x[2] = this->Position[2];
}
//@}
//@{
/**
* Get the current position and place it in the provided array.
*/
void GetPosition(float x[3])
{
x[0] = this->Position[0];
x[1] = this->Position[1];
x[2] = this->Position[2];
}
//@}
protected:
//@{
/**
* Helper method to update the position coordinate from the index.
*/
void UpdatePosition()
{
this->Position[0] = this->Origin[0] + this->Index[0]*this->Spacing[0];
this->Position[1] = this->Origin[1] + this->Index[1]*this->Spacing[1];
this->Position[2] = this->Origin[2] + this->Index[2]*this->Spacing[2];
}
//@}
double Origin[3];
double Spacing[3];
double Position[3];
};
#endif
// VTK-HeaderTest-Exclude: vtkImagePointIterator.h
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