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/*=========================================================================
*
* 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 itkBSplineInterpolationWeightFunction2_hxx
#define itkBSplineInterpolationWeightFunction2_hxx
#include "itkBSplineInterpolationWeightFunction2.h"
namespace itk
{
/**
* ******************* Compute1DWeights *******************
*/
template <typename TCoordinate, unsigned int VSpaceDimension, unsigned int VSplineOrder>
void
BSplineInterpolationWeightFunction2<TCoordinate, VSpaceDimension, VSplineOrder>::Compute1DWeights(
const ContinuousIndexType & index,
const IndexType & startIndex,
OneDWeightsType & weights1D) const
{
/** Compute the 1D weights. */
for (unsigned int i = 0; i < SpaceDimension; ++i)
{
double x = index[i] - static_cast<double>(startIndex[i]);
// Compute weights
double weights[6]; // Sufficiently large: maximum implemented SplineOrder + 1
KernelType::FastEvaluate(x, weights);
// Copy
for (unsigned int k = 0; k < VSplineOrder + 1; ++k)
{
weights1D[i][k] = weights[k];
}
}
} // end Compute1DWeights()
} // end namespace itk
#endif
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