ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkKernelFunctionBase.h
Go to the documentation of this file.
1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
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  * http://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 __itkKernelFunctionBase_h
19 #define __itkKernelFunctionBase_h
20 
21 #include "itkFunctionBase.h"
22 #include "itkConceptChecking.h"
23 #include "itkNumericTraits.h"
24 #include "vnl/vnl_math.h"
25 
26 namespace itk
27 {
42 template< typename TRealValueType = double >
43 class ITK_EXPORT KernelFunctionBase:public FunctionBase< TRealValueType, TRealValueType >
44 {
45 public:
51 
52  typedef TRealValueType RealType;
53 
55  itkTypeMacro(KernelFunctionBase, FunctionBase);
56 
58  virtual TRealValueType Evaluate(const TRealValueType & u) const = 0;
59 
60 #ifdef ITK_USE_STRICT_CONCEPT_CHECKING
61 
62  itkConceptMacro( TRealValueTypeIsFloatingPointCheck,
64 
66 #endif
67 
68 protected:
70  virtual ~KernelFunctionBase() {};
71  void PrintSelf(std::ostream & os, Indent indent) const
72  { Superclass::PrintSelf(os, indent); }
73 };
74 } // end namespace itk
75 
76 #endif // __itkKernelFunctionBase_h
77