ITK 6.0.0
Insight Toolkit
 
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itkLabelObjectLineComparator.h
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1/*=========================================================================
2 *
3 * Copyright NumFOCUS
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0.txt
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *=========================================================================*/
18#ifndef itkLabelObjectLineComparator_h
19#define itkLabelObjectLineComparator_h
20
21namespace itk::Functor
22{
23
38template <typename TLabelObjectLine>
40{
41public:
42 bool
43 operator()(const TLabelObjectLine & l1, const TLabelObjectLine & l2) const
44 {
45 const typename TLabelObjectLine::IndexType & idx1 = l1.GetIndex();
46 const typename TLabelObjectLine::IndexType & idx2 = l2.GetIndex();
47
48 for (int i = TLabelObjectLine::ImageDimension - 1; i >= 0; i--)
49 {
50 if (idx1[i] < idx2[i])
51 {
52 return true;
53 }
54 if (idx1[i] > idx2[i])
55 {
56 return false;
57 }
58 }
59 return l1.GetLength() < l2.GetLength();
60 }
61};
62
63} // namespace itk::Functor
64
65#endif
Performs a comparison of l1 < l2. Returns true if l1 is strictly less than l2.
bool operator()(const TLabelObjectLine &l1, const TLabelObjectLine &l2) const