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
|
/*=========================================================================
*
* 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 itkImageRegionSplitterMultidimensional_h
#define itkImageRegionSplitterMultidimensional_h
#include "itkRegion.h"
#include "itkIndex.h"
#include "itkImageRegionSplitterBase.h"
namespace itk
{
/** \class ImageRegionSplitterMultidimensional
* \brief Divide a region into several pieces.
*
* ImageRegionSplitterMultidimensional divides an ImageRegion into
* smaller regions. ImageRegionSplitterMultidimensional is used by
* the StreamingImageFilter to divide a requested output region into a
* series of smaller requests of the pipeline. This object has two
* basic methods: GetNumberOfSplits() and GetSplit().
*
* GetNumberOfSplits() is used to determine how may subregions a given
* region can be divided. You call GetNumberOfSplits with an argument
* that is the number of subregions you want. If the image region can
* support that number of subregions, that number is returned.
* Otherwise, the maximum number of splits less then or equal to the
* argumen be returned. For example, if a region splitter class only divides
* a region into horizontal slabs, then the maximum number of splits
* will be the number of rows in the region.
*
* GetSplit() returns the ith of N subregions (as an ImageRegion object).
*
* ImageRegionSplitterMultidimensional class divides a region
* into hypercubes (as opposed to the slabs used by the superclass
* ImageRegionSplitter). In other words, it splits every dimension of the
* region to form ND rectangular prisms.
*
* \ingroup ITKSystemObjects
* \ingroup DataProcessing
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT ImageRegionSplitterMultidimensional
: public ImageRegionSplitterBase
{
public:
/** Standard class typedefs. */
typedef ImageRegionSplitterMultidimensional Self;
typedef ImageRegionSplitterBase Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(ImageRegionSplitterMultidimensional, ImageRegionSplitterBase);
protected:
ImageRegionSplitterMultidimensional();
virtual unsigned int GetNumberOfSplitsInternal(unsigned int dim,
const IndexValueType regionIndex[],
const SizeValueType regionSize[],
unsigned int requestedNumber) const ITK_OVERRIDE;
virtual unsigned int GetSplitInternal(unsigned int dim,
unsigned int i,
unsigned int numberOfPieces,
IndexValueType regionIndex[],
SizeValueType regionSize[]) const ITK_OVERRIDE;
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(ImageRegionSplitterMultidimensional);
static unsigned int ComputeSplits(unsigned int dim,
unsigned int requestedNumber,
const IndexValueType regionIndex[],
const SizeValueType regionSize[],
unsigned int splits[]);
};
} // end namespace itk
#endif
|
