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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 itkFEMPArray_h
#define itkFEMPArray_h
#include "itkFEMP.h"
#include "itkFEMException.h"
#include <vector>
namespace itk
{
namespace fem
{
/**
* \class FEMPArray
* \brief Array for FEMP objects
*
* Array class that holds special pointers to objects. Every object must contain
* a variable member of type int called GN (global number). You can search for
* an object with specific GN within an array.
* \ingroup ITKFEM
*/
template <typename T>
class FEMPArray : public std::vector<FEMP<T>>
{
public:
/**
* Standard Self typedef
*/
using Self = FEMPArray;
/**
* Standard Superclass typedef
*/
using Superclass = std::vector<FEMP<T>>;
/**
* Dumb pointer type alias support
*/
using Pointer = Self *;
using ConstPointer = const Self *;
/**
* Easy access to the base class of objects inside the array.
*/
using ClassType = T;
using ClassTypePointer = typename ClassType::Pointer;
using ClassTypeConstPointer = typename ClassType::ConstPointer;
/**
* Finds and returns a pointer to the object with specific global number
*/
ClassTypePointer
Find(int gn);
ClassTypeConstPointer
Find(int gn) const;
/**
* Returns a pointer to i-th object stored in an array (not a pointer to FEMP of that object).
*/
ClassTypePointer
operator()(int i)
{
return &(*this->operator[](i));
}
/**
* Returns a pointer to i-th object stored in an array (not a pointer to FEMP of that object).
* This function works on the const arrays.
*/
ClassTypeConstPointer
operator()(int i) const
{
return &(*this->operator[](i));
}
/**
* Applies new numbers to objects in array so that they are in order (0,1,2,...).
* This speeds up finding object by global number a lot. The function returns
* total number of objects in an array.
*/
int
Renumber();
};
/**
* Find function for for non-const objects
*/
template <typename T>
auto
FEMPArray<T>::Find(int gn) -> ClassTypePointer
{
auto it = this->begin();
auto iend = this->end();
while (it != iend)
{
if ((*it)->GetGlobalNumber() == gn)
{
break;
}
++it;
}
if (it == this->end())
{
/**
* We didn't find an object with that GN...
*/
throw FEMExceptionObjectNotFound(__FILE__, __LINE__, "FEMPArray::Find() const", typeid(T).name(), gn);
}
/**
* Return a pointer to the found object.
*/
return &(*(*it));
}
/**
* Find function for for const objects
*/
template <typename T>
auto
FEMPArray<T>::Find(int gn) const -> ClassTypeConstPointer
{
using ConstIterator = typename Superclass::const_iterator;
ConstIterator it = this->begin();
ConstIterator iend = this->end();
while (it != iend)
{
if ((*it)->GetGlobalNumber() == gn)
{
break;
}
++it;
}
if (it == this->end())
{
/**
* We didn't find an object with that GN...
*/
throw FEMExceptionObjectNotFound(__FILE__, __LINE__, "FEMPArray::Find() const", typeid(T).name(), gn);
}
/**
* Return a pointer to the found object.
*/
return &(*(*it));
}
template <typename T>
int
FEMPArray<T>::Renumber()
{
typename Superclass::iterator i;
int j = 0;
for (i = this->begin(); i != this->end(); ++i)
{
(*i)->SetGlobalNumber(j);
++j;
}
return j;
}
} // end namespace fem
} // end namespace itk
#endif // itkFEMPArray_h
|
