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
|
/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 itkBSplineInterpolationDerivativeWeightFunction_hxx
#define itkBSplineInterpolationDerivativeWeightFunction_hxx
#include "itkBSplineInterpolationDerivativeWeightFunction.h"
namespace itk
{
/**
* ****************** Constructor *******************************
*/
template <typename TCoordinate, unsigned int VSpaceDimension, unsigned int VSplineOrder>
BSplineInterpolationDerivativeWeightFunction<TCoordinate, VSpaceDimension, VSplineOrder>::
BSplineInterpolationDerivativeWeightFunction()
{
/** Initialize members. */
this->m_DerivativeDirection = 0;
} // end Constructor
/**
* ******************* SetDerivativeDirection *******************
*/
template <typename TCoordinate, unsigned int VSpaceDimension, unsigned int VSplineOrder>
void
BSplineInterpolationDerivativeWeightFunction<TCoordinate, VSpaceDimension, VSplineOrder>::SetDerivativeDirection(
unsigned int dir)
{
if (dir != this->m_DerivativeDirection)
{
if (dir < SpaceDimension)
{
this->m_DerivativeDirection = dir;
this->Modified();
}
}
} // end SetDerivativeDirection()
/**
* ******************* PrintSelf *******************
*/
template <typename TCoordinate, unsigned int VSpaceDimension, unsigned int VSplineOrder>
void
BSplineInterpolationDerivativeWeightFunction<TCoordinate, VSpaceDimension, VSplineOrder>::PrintSelf(std::ostream & os,
Indent indent) const
{
this->Superclass::PrintSelf(os, indent);
} // end PrintSelf()
/**
* ******************* Compute1DWeights *******************
*/
template <typename TCoordinate, unsigned int VSpaceDimension, unsigned int VSplineOrder>
void
BSplineInterpolationDerivativeWeightFunction<TCoordinate, VSpaceDimension, VSplineOrder>::Compute1DWeights(
const ContinuousIndexType & cindex,
const IndexType & startIndex,
OneDWeightsType & weights1D) const
{
/** Compute the 1D weights. */
for (unsigned int i = 0; i < SpaceDimension; ++i)
{
double x = cindex[i] - static_cast<double>(startIndex[i]);
if (i != this->m_DerivativeDirection)
{
for (unsigned int k = 0; k < VSplineOrder + 1; ++k)
{
weights1D[i][k] = KernelType::FastEvaluate(x);
x -= 1.0;
}
}
else
{
for (unsigned int k = 0; k < VSplineOrder + 1; ++k)
{
weights1D[i][k] = DerivativeKernelType::FastEvaluate(x);
x -= 1.0;
}
}
}
} // end Compute1DWeights()
} // end namespace itk
#endif
|
