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
163
164
165
166
167
168
169
170
171
172
|
/*=========================================================================
*
* 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 itkImageToRectilinearFEMObjectFilter_h
#define itkImageToRectilinearFEMObjectFilter_h
#include "vnl/vnl_vector.h"
#include "itkFEMObject.h"
#include "itkProcessObject.h"
namespace itk
{
namespace fem
{
/**
* \class ImageToRectilinearFEMObjectFilter
* \brief Generate a rectilinar mesh from an image. The result is stored
* in a FEMObject
*
* This class generates a Mesh consiting of quadrilateral elements in 2D
* and hexahedral elements in 3D. The resulting meshes can be used with
* specific elements for solving membrane or linear elasticity problems.
*
* \ingroup ITKFEM
*/
template <typename TInputImage>
class ITK_TEMPLATE_EXPORT ImageToRectilinearFEMObjectFilter : public ProcessObject
{
public:
/** Standard class typedefs. */
typedef ImageToRectilinearFEMObjectFilter Self;
typedef ProcessObject 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(ImageToRectilinearFEMObjectFilter, ProcessObject);
itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);
/** Typedefs for Input Image */
typedef TInputImage InputImageType;
typedef typename InputImageType::Pointer ImagePointer;
typedef typename InputImageType::ConstPointer ImageConstPointer;
typedef typename InputImageType::RegionType ImageRegionType;
typedef typename InputImageType::SizeType ImageSizeType;
typedef typename InputImageType::PointType ImagePointType;
typedef typename InputImageType::IndexType ImageIndexType;
/** Typedefs for Output FEMObject */
typedef typename itk::fem::FEMObject<NDimensions> FEMObjectType;
typedef typename FEMObjectType::Pointer FEMObjectPointer;
typedef typename FEMObjectType::ConstPointer FEMObjectConstPointer;
typedef typename DataObject::Pointer DataObjectPointer;
/** Some convenient typedefs. */
typedef itk::fem::MaterialLinearElasticity MaterialType;
typedef MaterialType::Pointer MaterialPointerType;
// typedef itk::fem::Element2DC0LinearQuadrilateral QuadElementBaseType;
// typedef itk::fem::Element3DC0LinearHexahedron HexElementBaseType;
typedef itk::fem::Element ElementBaseType;
typedef itk::fem::Element::ConstPointer ElementBasePointerType;
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
// itkConceptMacro(SameDimensionOrMinusOne,
// (Concept::SameDimensionOrMinusOne<NDimensions, 3>));
// End concept checking
#endif
/**Get/Set the number of voxels/pixels in each dimension used
*during the mesh generation
*/
itkGetMacro(PixelsPerElement, vnl_vector<unsigned int> );
itkSetMacro(PixelsPerElement, vnl_vector<unsigned int> );
void SetPixelsPerElement( unsigned int numPixels )
{
this->m_PixelsPerElement.fill( numPixels );
}
/**Get the number of element in each dimension of the generated mesh*/
itkGetMacro(NumberOfElements, vnl_vector<unsigned int> );
/**Get/Set the material used for the mesh */
itkGetMacro(Material, MaterialPointerType);
itkSetMacro(Material, MaterialPointerType);
/**Get/Set the element type used to generate the mesh */
itkGetMacro(Element, ElementBasePointerType);
itkSetMacro(Element, ElementBasePointerType);
/** Set/Get the image input of this process object. */
using Superclass::SetInput;
void SetInput( InputImageType *image);
void SetInput( unsigned int, InputImageType *image);
InputImageType * GetInput();
InputImageType * GetInput(unsigned int idx);
/** Make a DataObject of the correct type to be used as the specified
* output. */
typedef ProcessObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
using Superclass::MakeOutput;
virtual DataObjectPointer MakeOutput(DataObjectPointerArraySizeType idx) ITK_OVERRIDE;
/** Get the output data of this process object. The output of this
* function is not valid until an appropriate Update() method has
* been called, either explicitly or implicitly. Both the filter
* itself and the data object have Update() methods, and both
* methods update the data.
*
* For Filters which have multiple outputs of different types, the
* GetOutput() method assumes the output is of OutputImageType. For
* the GetOutput(unsigned int) method, a dynamic_cast is performed
* incase the filter has outputs of different types or image
* types. Derived classes should have names get methods for these
* outputs.
*/
FEMObjectType * GetOutput();
FEMObjectType * GetOutput(unsigned int idx);
protected:
ImageToRectilinearFEMObjectFilter();
virtual ~ImageToRectilinearFEMObjectFilter() ITK_OVERRIDE {}
virtual void PrintSelf(std::ostream& os, Indent indent) const ITK_OVERRIDE;
/** Method invoked by the pipeline in order to trigger mesh generation */
virtual void GenerateData() ITK_OVERRIDE;
void Generate2DRectilinearMesh();
void Generate3DRectilinearMesh();
private:
ITK_DISALLOW_COPY_AND_ASSIGN(ImageToRectilinearFEMObjectFilter);
vnl_vector<unsigned int> m_NumberOfElements;
vnl_vector<unsigned int> m_PixelsPerElement;
MaterialPointerType m_Material;
ElementBasePointerType m_Element;
};
}
} // end namespace itk::fem
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkImageToRectilinearFEMObjectFilter.hxx"
#endif
#endif // #ifndef itkImageToRectilinearFEMObjectFilter_h
|
